Savings not available on all packages. We offer Round Trip starting at $257 and One-Way flights starting at $129. Find Last Minute Deals on flights from BOS to SEA with Hot Rate Discounts! Save up to 40% on Cheap Flights from Boston (BOS) to Seattle (SEA).Connecting flights between Boston, MA and Seattle, WA. Here is a list of connecting flights from Boston, Massachusetts to Seattle, Washington. This can help you find a one-stop flight with the shortest layover time. We found a total of 15 flights to Seattle, WA with one connection: Airline routes; American Airlines BOS to CLT to SEACheapest round-trip prices found by our users on KAYAK in the last 72 hours. One-way Round-trip. Seattle 2 stops $211. Spokane 1 stop $358. Pasco 1 stop $437. Bellingham 1 stop $506. Pullman 2 stops $757. Wenatchee 2 stops $875. Portland 1 stop $221. View Delta's best fares on flights from Seattle for your next getaway. Cradled by mountains and cool waters, stunning nature meets creative cityscapes in the sprawling and colorful Seattle, Washington. This gives visitors flying into Seattle-Tacoma International Airport (SEA) the best of outdoor adventure with the abounding options of a city ... There are 5 airlines that fly nonstop from Boston to Chicago. They are: American Airlines, Delta, JetBlue, Southwest and United Airlines. The cheapest price of all airlines flying this route was found with JetBlue at $81 for a one-way flight. On average, the best prices for this route can be found at JetBlue.Cheap Flights from Seattle to Boston Logan International from $395 in 2024 | Skyscanner. Return One way Multi-city. 27/04/2024. 04/05/2024. 1 adult, Economy. Direct flights …Book Cheap Nonstop & Direct Flights from Boston to Seattle: Search and compare airfares on Tripadvisor to find the best nonstop and direct flights for your trip from Boston to Seattle. Choose the best airline for you by reading reviews and viewing hundreds of ticket rates for non stop and direct flights going to and from your destination. Use Google Flights to explore cheap flights to anywhere. Search destinations and track prices to find and book your next flight. Southwest destinations from Seattle with flights in the past. AUS Austin. LAST FLIGHT WAS SCHEDULED 2018-01-05 HOU Houston. LAST FLIGHT WAS SCHEDULED 2020-09-05 MKE Milwaukee. LAST FLIGHT WAS SCHEDULED 2020-09-05 SAN San Diego. LAST FLIGHT WAS SCHEDULED 2020-09-05 Frequently Asked Questions (FAQ)Lowest Fare for Boston to Seattle Flight ₹ 10665- 27 Apr: Today's Lowest Fare ₹ 0: Total flights from Boston to Seattle in a Week : 142 Flights : First Flight: American Airlines, departs at 05:25: Last Flight: JetBlue Airways, Alaska Airlines, departs at 20:25: Non-Stop Flights from Boston to Seattle: 9: Airport Name & codes of Boston & SeattleBoston to Seattle / Tacoma Flights. Flights from BOS to SEA are operated 32 times a week, with an average of 5 flights per day. Departure times vary between 06:30 - 19:59. The earliest flight departs at 06:30, the last flight departs at 19:59. However, this depends on the date you are flying so please check with the full flight schedule above ...The two airlines most popular with KAYAK users for flights from Boston to San Francisco are Alaska Airlines and Delta. With an average price for the route of $371 and an overall rating of 8.1, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $338 and an overall rating of 8.0.Compare flight deals to Seattle from Boston from over 1,000 providers. Then choose the cheapest or fastest plane tickets. Flex your dates to find the best Boston-Seattle ticket …The two airlines most popular with KAYAK users for flights from Seattle to San Diego are Alaska Airlines and Delta. With an average price for the route of $268 and an overall rating of 8.1, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $238 and an overall rating of 8.0.Each day, there are between 12 and 18 nonstop flights that take off from Seattle and land in Boston, with an average flight time of 5h 27m. The most common departure time is 15:00 and most flights take off in the morning. Each week, there are 109 flights. The most frequent day of departure is Sunday, when 17% of all weekly flights depart.Information about flights from Boston to Seattle. When you’re looking to get away and not interested in a precise date, take a look at our flight offers this month. Flight deals from Boston to Seattle are great time of year. Be inspired! Explore the additional services available on lastminute.com even once you have booked your flight Boston ...Check the status of your flight to Boston Logan Airport using the information on our arrivals page. The data on arrival times and status is frequently updated in real time. ... Seattle (SEA) 06:59 am DL568. KE3009. VS1732. Delta Air Lines. Korean Air . Virgin Atlantic . A. Terminal A. Landed - On-time [+] Provincetown (PVC) 07:15 am 9K2001.Which airlines provide the cheapest flights from Houston to Seattle? The cheapest return flight ticket from Houston to Seattle found by KAYAK users in the last 72 hours was for $119 on Frontier, followed by Spirit Airlines ($157). One-way flight deals have also been found from as low as $75 on Frontier and from $94 on Spirit Airlines.Savings not available on all packages. We offer Round Trip starting at $257 and One-Way flights starting at $129. Find Last Minute Deals on flights from BOS to SEA with Hot Rate Discounts! Save up to 40% on Cheap Flights from Boston (BOS) to Seattle (SEA). Searching for cheap flights from Seattle to Boston? Enjoy comfort, premium cabin legroom and free movies with Alaska Airlines. Find the lowest fares today. The two airlines most popular with KAYAK users for flights from Seattle to Boston are Alaska Airlines and Delta. With an average price for the route of C$ 475 and an overall rating of 8.1, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of C$ 323 and an overall rating of 8.0.Cheap flights from Boston to Seattle (BOS - SEA) from $89. Round-trip One-way Multi-city. From? To? Tue 4/2. Tue 4/9. 1 adult. Economy. Find Your Flight. The best prices …Purchase a flight up to 331 days in advance. You can now purchase flights as far out as 331 days from the date of booking at any time. Our flight schedules will automatically extend day-by-day. Check out our Best Fare Finder to see if we have flights scheduled during your desired dates for a chosen route. See flight availability.Flights from Boston to Seattle with American Airlines. Round trip. 1 Adult, Economy class. Book with cash. From. To. Depart. 04/26/24. today. Return. 05/03/24. today. Home. …Wed, 15 May BOS - SEA with Frontier Airlines. 1 stop. from £186. Boston. £202 per passenger.Departing Sat, 27 Apr, returning Sun, 28 Apr.Return flight with Delta.Outbound direct flight with Delta departs from Seattle / Tacoma International on Sat, 27 Apr, arriving in Boston Logan International.Inbound direct flight with Delta departs from ... JetBlue Route map lets you explore over 100 destinations in the U.S., Latin America and Caribbean, plus London, with low fares and great service. Whether you want to visit San Francisco, Boston, or any other city, you can find your deal and book your flight with our interactive map. The most reliable airlines for Boston to Seattle flights are EL AL, LATAM Airlines, and Condor. They have arrived on schedule on over 96% of recent flights to Seattle. What is best Boston to Seattle flight price on Priceline? Cheap flights from Boston to Seattle start from $128. Anything between $128 and $939 is a good price. ASA460. B739. Arrived / Delayed. Thu 03:43PM PST. 11:57PM EST Thu. Seattle-Tacoma Intl (KSEA) - Boston Logan Intl (KBOS) - Flight Finder - Find and track any flight (airline or private) -- search by origin and destination. Cheap Flights from Seattle (SEA) to Boston (BOS) Prices were available within the past 7 days and start at £102 for one-way flights and £203 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Reserve one-way or return flights from Seattle to Boston with no change fee on selected ...Looking for a cheap flight? 25% of our users found tickets from Boston to the following destinations at these prices or less: Reykjavik $290 one-way - $419 round-trip; London $407 one-way - $668 round-trip; Miami $148 one-way - $316 round-trip. Morning departure is around 4% cheaper than an evening flight, on average*.Check the status of your flight to Seattle Airport - SEATAC using the information on our arrivals page. The data on arrival times and status is frequently updated in real time. ... Boston (BOS) 02:14 pm AS537. AA7490. DE5065. TN2336. Alaska Airlines. American Airlines . Condor . Air Tahiti Nui . Landed - On-time [+] Boston (BOS) 02:17 pm DL340. Use Google Flights to explore cheap flights to anywhere. Search destinations and track prices to find and book your next flight. Find United Airlines cheap flights from Boston to Seattle. Enjoy a Boston to Seattle modern flight experience in premium cabins with Wi-Fi.Use Google Flights to find cheap departing flights to Seattle and to track prices for specific travel dates for your next getaway.Cheapest round-trip prices found by our users on KAYAK in the last 72 hours. One-way Round-trip. Seattle 2 stops $211. Spokane 1 stop $358. Pasco 1 stop $437. Bellingham 1 stop $506. Pullman 2 stops $757. Wenatchee 2 stops $875. Portland 1 stop $221.Korean Air flight #25 is today's earliest flight from Boston, MA to Seattle (7:00 EDT, Boeing 737-900) American Airlines flight #2397 is today's latest flight from Boston, MA to Seattle (18:00 EDT, Airbus A321-100/200) Show more. Arrival information.Our data suggests that currently, the cheapest flights from Boston are being offered by American Airlines, Undisclosed Carrier, and Endeavor Airlines. For example, American Airlines flights from Boston to Charlotte, start at $27, Undisclosed Carrier flights from Boston to Washington, D.C. cost around $36, and Endeavor Airlines flights from ...Find flights to Seattle from $117. Fly from Boston on American Airlines, Spirit Airlines, JetBlue and more. Search for Seattle flights on KAYAK now to find the best deal.Cheap flights from Seattle to Boston (SEA - BOS): Compare last minute flight deals, direct flights and round-trip flights with Orbitz today! Skip to main content. ... Prices starting at $245 for return flights and $101 for one-way flights to Boston were the cheapest prices found within the past 7 days, for the period specified.Savings not available on all packages. We offer Round Trip starting at $257 and One-Way flights starting at $129. Find Last Minute Deals on flights from BOS to SEA with Hot Rate Discounts! Save up to 40% on Cheap Flights from Boston (BOS) to Seattle (SEA).Each day, there are between 12 and 17 nonstop flights that take off from Seattle and land in Boston, with an average flight time of 5h 26m. The most common departure time is 3:00 p.m. and most flights take off in the morning.FlightView (BOS) Boston Flight Tracker & Airport Delays. Logan Intl (BOS) - Boston, MA. ArrivalsDeparturesAirport DelayWeatherParkingLimos. BOS Arrivals. Select an airline... Aer Lingus - EI Aeroflot Airlines - SU Aeromexico - AM Air Canada - AC Air China - CA Air France - AF Air India - AI Air Inuit - 3H Air Jamaica - JM Air Labrador - WJ Air ...Prices were available within the past 7 days and start at ₹11,552 for one-way flights and ₹21,344 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Compare & reserve one-way or return flights from Boston to Seattle from ₹11,552 only to get the best flight deals and promotions ...The two airlines most popular with KAYAK users for flights from Boston to San Francisco are Alaska Airlines and Delta. With an average price for the route of $371 and an overall rating of 8.1, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $338 and an overall rating of 8.0.Direct (non-stop) flights from Seattle to Boston All flight schedules from Seattle Tacoma International , Washington , USA to General Edward Lawrence Logan International , Massachusetts , USA. This route is operated by 3 airline(s), and the flight time is 6 hours and 29 minutes. The distance is 2502 miles.Cheapest round-trip prices found by our users on KAYAK in the last 72 hours. One-way Round-trip. Shanghai 1 stop $1,165. Beijing 1 stop $1,228. Guangzhou 2 stops $1,226. Fuzhou 2 stops $1,467. Shenyang 1 stop $1,398. Chengdu 3 stops $1,321. Xiamen 3 …Flight deals from Seattle to Boston Logan International. Looking for a cheap last-minute deal or the best round-trip flight from Seattle to Boston Logan International? Find the …FlightView (BOS) Boston Flight Tracker & Airport Delays. Logan Intl (BOS) - Boston, MA. ArrivalsDeparturesAirport DelayWeatherParkingLimos. BOS Arrivals. Select an airline... Aer Lingus - EI Aeroflot Airlines - SU Aeromexico - AM Air Canada - AC Air China - CA Air France - AF Air India - AI Air Inuit - 3H Air Jamaica - JM Air Labrador - WJ Air ...ASA460. B739. Arrived / Delayed. Thu 03:43PM PST. 11:57PM EST Thu. Seattle-Tacoma Intl (KSEA) - Boston Logan Intl (KBOS) - Flight Finder - Find and track any flight (airline or private) -- search by origin and destination.Direct flights from Boston to Seattle. All flights from BOS to SEA non-stop. There are direct flights from General Edward Lawrence Logan International, Massachusetts, USA to Seattle Tacoma International (SEA), Washington, USA every day of the week The flight distance is 2502 miles and the trip usually takes about 6 hours and 9 minutes. Book cheap flights from Boston to Seattle on CheapOair and enjoy great discounts. Whether its leisure or a business trip, we offer the most competitive rates on flight tickets to destinations around the world. Grab BOS to SEA flight deals on CheapOair and save big! Hurry, our cheap rates are not going to last forever, so make your bookings ... First Class. $367. Boston. Search and compare first class flight deals to Boston. Fly from Washington, D.C. from $319, from Washington, D.C. from $338, from Chicago from $387. Book your first class tickets to Boston. Find flights to Seattle from $120. Fly from Boston on Sun Country Air, American Airlines, Spirit Airlines and more. Search for Seattle flights on KAYAK now to find the best deal.Southwest destinations from Seattle with flights in the past. AUS Austin. LAST FLIGHT WAS SCHEDULED 2018-01-05 HOU Houston. LAST FLIGHT WAS SCHEDULED 2020-09-05 MKE Milwaukee. LAST FLIGHT WAS SCHEDULED 2020-09-05 SAN San Diego. LAST FLIGHT WAS SCHEDULED 2020-09-05 Frequently Asked Questions (FAQ)Flight + hotel deals to Boston, Massachusetts (BOS) Sheraton Boston Hotel. The newly renovated Sheraton Boston Hotel is conveniently located in the heart of Boston's historic Back Bay neighborhood, steps away to over 200 shops and restaurants, including indoor skywalk connections to two premier shopping centers.Compare flight deals to Seattle from Boston from over 1,000 providers. Then choose the cheapest or fastest plane tickets. Flight tickets to Seattle start from £85 one-way. Flex …The two airlines most popular with KAYAK users for flights from Boston to San Diego are Alaska Airlines and Delta. With an average price for the route of $334 and an overall rating of 8.1, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $373 and an overall rating of 8.0.On average, a flight to Boston costs $298. The cheapest price found on KAYAK in the last 2 weeks cost $29 and departed from Myrtle Beach. The most popular routes on KAYAK are Washington, D.C. to Boston which costs $306 on average, and San Francisco to Boston, which costs $428 on average. See prices from:Prices were available within the past 7 days and start at $139 for one-way flights and $257 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals. One way. Roundtrip. Sat, Apr 27 - … Economy. See Latest Fare. Boston (BOS) to. Seattle (SEA) 04/29/24 - 05/06/24. from. $251*. Updated: 8 hours ago. Round trip. Cheap flights from Seattle to Boston (SEA - BOS): Compare last minute flight deals, direct flights and round-trip flights with Orbitz today! Skip to main content. ... Prices starting at $245 for return flights and $101 for one-way flights to Boston were the cheapest prices found within the past 7 days, for the period specified. There are 4 airlines that fly direct from Boston to Seattle. They are: Alaska Airlines, Delta, Hainan Airlines and JetBlue. The cheapest price of all airlines flying this route was found with Alaska Airlines at £151 for a one-way flight. On average, the best prices for this route can be found at Alaska Airlines. Boston to Seattle / Tacoma Flights. Flights from BOS to SEA are operated 32 times a week, with an average of 5 flights per day. Departure times vary between 06:30 - 19:59. The earliest flight departs at 06:30, the last flight departs at 19:59. However, this depends on the date you are flying so please check with the full flight schedule above ... 08/15/24 - 08/23/24. from. $ 568*. Viewed: 15 hours ago. From. Boston (BOS) To. Seattle (SEA) Roundtrip. The two airlines most popular with KAYAK users for flights from Boston to Denver are Alaska Airlines and Delta. With an average price for the route of $418 and an overall rating of 8.1, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $331 and an overall rating of 8.0.Compare flight deals to Seattle from Boston from over 1,000 providers. Then choose the cheapest or fastest plane tickets. Flight tickets to Seattle start from $112 one-way. Flex your dates to find the best BOS–SEA ticket prices.Seattle / Tacoma to Boston Flights. Flights from SEA to BOS are operated 33 times a week, with an average of 5 flights per day. Departure times vary between 06:30 - 23:59. The earliest flight departs at 06:30, the last flight departs at 23:59. However, this depends on the date you are flying so please check with the full flight schedule above ...Cheapest Flights from Boston (BOS) to Seattle (SEA) The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were CA $337 round trip and CA $170 one way. Prices and availability subject to change. Additional terms may apply. Thu., 25 Apr. - Sun., 28 Apr. BOS. Boston. SEA. Seattle.Fall sees many cultural festivals, such as Croatia Fest, Fremont Oktoberfest and TurkFest. Winter highlights include Winterfest, Seattle Boat Show and Wintergrass Bluegrass Festival. Book cheap flights to Seattle (SEA) with United Airlines. Enjoy all the in-flight perks on your Seattle flight, including speed Wi-Fi.Seattle / Tacoma to Boston Flights. Flights from SEA to BOS are operated 33 times a week, with an average of 5 flights per day. Departure times vary between 06:30 - 23:59. The earliest flight departs at 06:30, the last flight departs at 23:59. However, this depends on the date you are flying so please check with the full flight schedule above ...See all routes, airlines and scheduled direct (non-stop) flights from Seattle Tacoma International (SEA). Find detailed information for each departure 9 months ahead and explore all 127 destinations with our smart search tool and route map.2 days ago · Boston Airport has non-stop passenger flights scheduled to 144 destinations in 41 countries. At present, there are 83 domestic flights from Boston. The longest flight from Boston BOS is a 4,942 mile (7,953 km) non-stop route to Hong Kong HKG. Maybe you need flights from Boston to Seattle to attend your cousin’s wedding, to pitch a business idea to your boss, or perhaps simply to treat yourself to a mini vacation. Regardless of the reasons behind packing your bags and needing to find the cheapest flights from BOS to SEA, we’ve got you covered here at Flights.com.Book Cheap Flights from Seattle to Boston. Looking for flights from Seattle to Boston? Look no more, for you’re at the right place. Book cheap flights from Seattle to Boston on CheapOair and enjoy great discounts. Whether its leisure or a business trip, we offer the most competitive rates on flight tickets to destinations around the world.Cheap flights from Boston to Seattle (BOS - SEA) from $89. Round-trip One-way Multi-city. From? To? Tue 4/2. Tue 4/9. 1 adult. Economy. Find Your Flight. The best prices …Mar 5, 2024 · Reportedly, Air India may deploy Boeing 777-9 for its likely nonstop service to India from Dallas and Los Angeles. A fleet of new widebody B777-9 planes will join Air India starting from the end of 2024, as part of the US$34-billion deal with Boeing. Currently, IndianEagle.com has best deals for LAX, Seattle and Dallas to India flights by ... Flight + hotel deals to Boston, Massachusetts (BOS) Sheraton Boston Hotel. The newly renovated Sheraton Boston Hotel is conveniently located in the heart of Boston's historic Back Bay neighborhood, steps away to over 200 shops and restaurants, including indoor skywalk connections to two premier shopping centers.Between Boston and Seattle, the maximum delay was 2h 15m. Every week, there is on average 81 flights between Boston and Seattle. It is on average $208.46 for a 2 stop (s) flight between Boston and Seattle. On average, it is $256.28 for a direct flight between Boston and Seattle. Boston is 7% more expensive than Seattle.There are 5 airlines that fly nonstop from Boston to Chicago. They are: American Airlines, Delta, JetBlue, Southwest and United Airlines. The cheapest price of all airlines flying this route was found with JetBlue at $81 for a one-way flight. On average, the best prices for this route can be found at JetBlue.Hainan’s service is currently scheduled for three round-trip flights every Wednesday, Friday, and Sunday, and the Beijing-bound flights from Boston also stop at Seattle-Tacoma International ...Cheap Seattle to Boston flights in April & May 2024. Listed are some of the best fares we've found on flights departing from Seattle to Boston in 2024. Check back regularly for other flight deals. jue. 2/5 9:05 p.m. SEA - BOS. Nonstop 5h 31m JetBlue. mié. 8/5 4:25 p.m. BOS - SEA. Nonstop 6h 05m JetBlue.Tue, Sep 24 SJU – BOS with Frontier Airlines. Direct. from $118. Punta Cana.$214 per passenger.Departing Thu, May 9, returning Sat, May 18.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Boston Logan International on Thu, May 9, arriving in Punta Cana.Inbound indirect flight with ...Mar 22, 2024 · The two airlines most popular with KAYAK users for flights from Boston to Seattle are Alaska Airlines and JetBlue. With an average price for the route of $372 and an overall rating of 8.3, Alaska Airlines is the most popular choice. JetBlue is also a great choice for the route, with an average price of $398 and an overall rating of 8.1. Boston Logan International. Seattle / Tacoma International. Compare Boston Logan International to Seattle / Tacoma International flight deals. Find the cheapest month or …
The two airlines most popular with KAYAK users for flights from San Diego to Boston are Alaska Airlines and Delta. With an average price for the route of $417 and an overall rating of 8.1, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $373 and an overall rating of 8.0.. Metricool.
Connecting flights between Boston, MA and Seattle, WA. Here is a list of connecting flights from Boston, Massachusetts to Seattle, Washington. This can help you find a one-stop flight with the shortest layover time. We found a total of 15 flights to Seattle, WA with one connection: Airline routes; American Airlines BOS to CLT to SEAApr 14, 2024 · If you're flying from Boston Logan International Airport, the cheapest airport near Seattle is Seattle / Tacoma International – which is 12.1 miles away from the center of Seattle. We've found flights to this airport from $252 . Seattle , WA. Distance. 2502 miles · (4026 km) CHANGE DIRECTION. Flight time. 6 hours and 45 minutes. Airlines with direct flights from Boston (BOS) to Seattle (SEA) Alaska …Flight B6197 from Boston to Seattle is operated by JetBlue Airways. Scheduled time of departure from Boston Logan Intl is 17:24 EDT and scheduled time of arrival in Seattle Tacoma Intl is 20:35 PDT. The duration of the flight JetBlue Airways B6 197 is 6 hours 11 minutes.Find flights to Seattle from $132. Fly from Boston on Spirit Airlines, United Airlines, American Airlines and more. Search for Seattle flights on KAYAK now to find the best deal.For travel between the United States and Canada, $35 USD fee for 1 checked bag and $45 USD fee for second checked bag. For travel between the United States and the U.S. Virgin Islands, Central America (excluding El Salvador and Panama), Caribbean, Guyana or Bermuda, $35 USD fee for 1 checked bag and $45 USD fee for second checked bag.Take a look at the list of non stop flights and flights with layovers from Boston to Seattle with the lowest price of $47. The fastest direct flight takes 6h and the fastest connecting – 7h 26m. *Departure and arrival times - local.ARUBA Get Here This melting-pot island — billed as the happiest in the Caribbean — is also the most visited, with nearly 90 percent of travelers hailing from North America. Fly nonstop from 15 U.S. hubs, as well as Toronto and Montreal. Only Here It looks like a desert — dry, a tad barren, riddled with cacti.There are 32 flights per week flying from Boston to Seattle / Tacoma (as of April 2024). How long does it take to fly from Boston to Seattle / Tacoma? 6 hours and 9 minutes is …Each day, there are between 12 and 18 nonstop flights that take off from Seattle and land in Boston, with an average flight time of 5h 27m. The most common departure time is 15:00 and most flights take off in the morning. Each week, there are 109 flights. The most frequent day of departure is Sunday, when 17% of all weekly flights depart.Find flights to Seattle from $117. Fly from Boston on American Airlines, Spirit Airlines, JetBlue and more. Search for Seattle flights on KAYAK now to find the best deal. Economy. See Latest Fare. Boston (BOS) to. Seattle (SEA) 04/29/24 - 05/06/24. from. $251*. Updated: 8 hours ago. Round trip. Purchase a flight up to 331 days in advance. You can now purchase flights as far out as 331 days from the date of booking at any time. Our flight schedules will automatically extend day-by-day. Check out our Best Fare Finder to see if we have flights scheduled during your desired dates for a chosen route. See flight availability.For travel between the United States and Canada, $35 USD fee for 1 checked bag and $45 USD fee for second checked bag. For travel between the United States and the U.S. Virgin Islands, Central America (excluding El Salvador and Panama), Caribbean, Guyana or Bermuda, $35 USD fee for 1 checked bag and $45 USD fee for second checked bag..