Find flights
Deals
Insights
When to book
FAQs & Tips
Direct Flights
Airlines

BOS - SEA

$134 Find cheap flights from Boston to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Seattle departing on 5/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
sáb. 5/25
sáb. 6/1

Search hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Seattle.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Seattle.
In the last 7 days travelers have searched 44,979,812 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from Boston to Seattle (BOS-SEA)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
5:05 am - 8:45 amBOS-SEA
30h 40m3 stops
9:40 pm - 11:55 pmSEA-BOS
23h 15m3 stops
$202Spirit Airlines
Find Deal
mar., may. 7 - mar., may. 14
10:01 am - 8:45 amBOS-SEA
25h 44m2 stops
9:40 pm - 11:55 pmSEA-BOS
23h 15m3 stops
$209Spirit Airlines
Find Deal
mar., may. 7 - mar., may. 14
5:30 am - 11:08 amBOS-SEA
8h 38m1 stop
11:43 pm - 12:14 pmSEA-BOS
9h 31m1 stop
$251American Airlines
Find Deal
mar., may. 7 - mar., may. 7
3:30 pm - 9:26 pmBOS-SEA
8h 56m1 stop
12:09 pm - 1:01 amSEA-BOS
9h 52m1 stop
$252American Airlines
Find Deal
jue., may. 2 - mié., may. 8
4:25 pm - 7:30 pmBOS-SEA
6h 05mnonstop
8:40 pm - 5:09 amSEA-BOS
5h 29mnonstop
$297JetBlue
Find Deal
mar., may. 7 - mié., may. 8
5:22 pm - 10:49 pmBOS-SEA
8h 27m1 stop
8:40 pm - 5:09 amSEA-BOS
5h 29mnonstop
$306JetBlue
Find Deal
mar., may. 7 - mié., may. 8
6:30 am - 9:47 amBOS-SEA
6h 17mnonstop
10:31 pm - 6:59 amSEA-BOS
5h 28mnonstop
$327Delta
Find Deal
mié., may. 22 - sáb., jun. 1
8:40 am - 5:14 pmBOS-SEA
11h 34m1 stop
9:25 pm - 5:50 amSEA-BOS
5h 25mnonstop
$336Alaska Airlines
Find Deal
sáb., may. 25 - mar., may. 28
6:30 am - 9:47 amBOS-SEA
6h 17mnonstop
7:50 am - 4:30 pmSEA-BOS
5h 40mnonstop
$342Delta
Find Deal
mar., jun. 4 - sáb., jun. 8
4:01 pm - 10:54 pmBOS-SEA
9h 53m1 stop
7:45 pm - 7:30 amSEA-BOS
8h 45m1 stop
$346Alaska Airlines
Find Deal
sáb., may. 25 - vie., may. 31

Flights from Boston to Seattle - Travel Insights & Trends

Get data-powered insights and trends into flights from Boston to Seattle to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Boston to Seattle?

The average price of all flights from Boston to Seattle clicked on KAYAK for each day over the last 12 months.
When flying from Boston to Seattle, you should consider leaving on a Wednesday and avoid Sundays if you are looking for the best rates. For your return to Boston, you’ll find the best rates on Wednesdays and the most expensive ones on Sundays.

What is the cheapest month to fly from Boston to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Boston to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Boston to Seattle is January, where tickets cost $217 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $512 and $498 respectively.

How far in advance should I book a flight from Boston to Seattle?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Boston to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Boston to Seattle, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 27 days before departure.

Which airlines provide the cheapest flights from Boston to Seattle?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the best return deals on flights connecting Boston to Seattle were found on Spirit Airlines ($202) and United Airlines ($249). Spirit Airlines proposed the cheapest one-way flight at $134.

Which airlines fly most frequently between Boston and Seattle?

In normal times, Alaska Airlines flies from Boston to Seattle up to 5 times per day, Delta up to 4 times per day, and JetBlue 1 time per day.

Which airlines fly non-stop between Boston and Seattle?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Boston to Seattle.
There are 4 airlines that fly nonstop 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 JetBlue at $129 for a one-way flight. On average, the best prices for this route can be found at Alaska Airlines.

How many flights are there between Boston and Seattle per day?

Each day, there are between 10 and 14 nonstop flights that take off from Boston and land in Seattle, with an average flight time of 6h 13m. The most common departure time is 7:00 pm and most flights take off in the morning. Each week, there are 79 flights. The most frequent day of departure is Friday, when 18% of all weekly flights depart. The fewest flights depart on a Thursday.

Which cabin class options are there for flights between Boston and Seattle?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Boston to Seattle take?

The duration of a nonstop flight to Seattle from Boston is typically 6h 03m. The journey crosses a distance of 2,487 miles.

What’s the earliest departure time from Boston to Seattle?

Early birds can take the earliest flight from Boston at 6:30 am and will be landing in Seattle at 9:50 am.

What’s the latest departure time from Boston to Seattle?

If you prefer to fly at night, the latest flight from Boston to Seattle jets off at 7:59 pm and lands at 11:08 pm.

Good to know

Low season

January

High season

August

Cheapest flight

$134
Best time to beat the crowds with an average 40% drop in price.
Most popular time to fly with an average 33% increase in price.
Flight from Boston to Seattle

When to book flights from Boston to Seattle

Are your dates flexible? Find out the best times to travel from Boston to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boston to Seattle

  • Are there lounges at SEA?

    Multiple airlines run several lounges at Seattle-Tacoma International Airport (SEA). They include The American Express Centurion Lounge and the United Club. Travelers flying aboard Alaska Airlines should know that the airline operates three lounges at this facility. There’s one at Concourse C, adjacent to gate C16A, Concourse D, near gate D1, and the North Satellite Terminal, close to gate N2.

  • Which airline has its hub at SEA?

    Passengers flying aboard Delta Airlines should remember that the carrier has its hub at Seattle-Tacoma International Airport (SEA), and you'll arrive through the main terminal, Concourse A. You'll enjoy the two Delta Sky Clubs located in Concourse A, near gate A, and South Satellite Terminal, near gate S9. Also, you'll receive priority clearance under the fast lane program.

  • Are there lactating rooms at SEA?

    Seattle-Tacoma International Airport (SEA) features suites that cater to the needs of moms. Located in Concourse D on the lower level of D Annex, these rooms provide privacy as you pump and breastfeed the little ones. Other amenities in these rooms include sinks, comfy chairs, and electrical sockets.

  • Can I leave my luggage at Seattle-Tacoma International Airport (SEA)?

    Passengers arriving at SEA from BOS who feel that they want to leave excess baggage behind, you’ll get storage facilities between baggage carousels 12 & 13. The facility lockers operate between 5:30 am until 12:30 am.

  • Are there onsite hotels at Seattle-Tacoma International Airport?

    While there are no hotels located onsite at Seattle-Tacoma International Airport, there is a cluster of hotels just shy of a mile away from the airport’s terminals. Hilton Seattle Airport & Conference Center, Crowne Plaza Seattle Airport, and Seattle Airport Marriott all are within a mile of the airport and offer free airport pickup and drop-off.

  • Can I fly from Boston to Seattle non-stop?

    Alaska Airlines, jetBlue Airways, and Delta Air Lines all offer nonstop flights from Boston to Seattle. One-stop flights are also common between the two cities, with flights offered by airlines such as United Airlines, Delta Air Lines, and American Airlines. Common layover cities for such flights include Washington D.C., Detroit, and Philadelphia.

  • What is the quickest way from Seattle-Tacoma International Airport to downtown Seattle?

    If you are not renting or driving a vehicle, Link Light Rail is the quickest way to get from the airport to downtown Seattle. Link Light Rail trains connect Seattle-Tacoma International Airport directly to downtown Seattle, and they even run all the way north up to the University of Washington. The airport’s Link station is found on the fourth floor of the adjacent parking garage.

  • What facilities are available for children in Seattle-Tacoma International Airport and Boston Logan International Airport?

    Seattle-Tacoma International Airport and Boston Logan International Airport both have children’s play areas available. Seattle-Tacoma International Airport’s children’s play area, the Playroom, is located across from the Seattle Tap Room by the A gates in the Central Terminal. Boston Logan International Airport’s three children’s play areas are located by Gate 18 in Terminal A, Gate 30 in Terminal B, and Gate 25 in Terminal C.

  • What is the cheapest flight from Boston to Seattle?

    In the last 3 days, the lowest price for a flight from Boston to Seattle was $134 for a one-way ticket and $202 for a round-trip.

  • Do I need a passport to fly between Boston and Seattle?

    No, a passport isn't needed to fly from Boston to Seattle. However, local authorities might ask for an official ID.

  • Which airlines offer Wi-Fi service onboard planes from Boston to Seattle?

    All the following airlines offer inflight Wi-Fi service on the Boston to Seattle flight route: JetBlue, Alaska Airlines, Delta, Hawaiian Airlines, Aeromexico, American Airlines, and Qatar Airways.

  • Which aircraft models fly most regularly from Boston to Seattle?

    The Airbus A321neo is the aircraft model that flies most regularly on the Boston to Seattle flight route.

  • Which airline alliances offer flights from Boston to Seattle?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Boston and Seattle, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Boston to Seattle?

    There are nonstop flights from Boston to Seattle on a daily basis.

  • Which is the best airline for flights from Boston to Seattle, Delta or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from Boston to Seattle are Delta and Alaska Airlines. With an average price for the route of $378 and an overall rating of 8.0, Delta is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $378 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Boston to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Boston is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Boston with another airline. Booking your flights between Boston and SEA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from BOS to Seattle

  • Looking for a cheap flight? 25% of our users found flights on this route for $213 or less one-way and $336 or less round-trip.
  • As the busiest airport in Boston, Boston Logan International Airport (BOS) features high-tech innovations and modern infrastructure. This makes it the airport of choice among most airlines, partly the reason why it’s ranked among the 20 busiest airports in the US. Domestic departures and arrivals are through terminals, A, B, and C, while E is reserved for international flights. You can easily connect the terminals via walkways. Also, a shuttle operates between these terminals every 5-15min.
  • Boston Logan International Airport (BOS) in collaboration with Transportation Security Administration (TSA) runs a Cares program that ensures that disabled passengers and travelers with mobility limitations receive assistance. You’ll get dedicated staff to guide you through the security checkpoints and when enplaning. To take advantage of these services, endeavor to contact your airline about 72h before departure.
  • For the prayerful travelers who need a quiet escape to have a moment with the Almighty before the flight, BOS has a chapel at your disposal. You can locate this religious sanctuary in Terminal C before security, on the Arrivals Level. The oasis conducts frequent interfaith prayers to the interest travelers, whether departing or arriving.
  • In case you’re feeling fatigued ahead of your trip BOS to Seattle-Tacoma International Airport (SEA), locate Xpress Spa in Terminal B, close to the American Airlines counter, or Jet Setter Mini Spa and Classique Nail Salon in Terminal C. Services at these outlets such as facials and deep tissue massage provide the much-needed calmness and relaxation before you take off.
  • If your wallet is depleted and you need to recharge it before leaving Boston Logan International Airport (BOS) for Seattle-Tacoma International Airport (SEA), you won’t have a shortage of options to choose from. Those departing through Terminal A will find various ATMs before security.
  • Looking for a family-friendly diversion during your time at Boston Logan International Airport? A good option for art-loving families is Logan International’s Airport Public Art Program. The program features a variety of temporary exhibits that aim to enliven the airport’s environment while simultaneously educating the public.
  • For travelers flying with their four-legged companions on their flights from Boston to Seattle, you will be happy to hear that both airports have pet relief areas available. Boston Logan International Airport’s pet relief areas are located by the Arrivals area outside of the terminals as well as in Terminal E. In Seattle-Tacoma International Airport there are five pet relief areas: two outside of Baggage Claim and the three others by the N, S, and B Gates.
  • Boston Logan International Airport has plenty to offer in terms of dining that offers a bit of local flare. The Harpoon Tap Room, for instance, is a branch of Boston’s Harpoon Brewery and serves a variety of local brews along with a variety of barroom classics. Another local option is Dine Boston. Dine Boston offers a seasonal menu that is updated regularly by guest chefs from the Boston gastronomical scene.
  • For travelers picking up a rental car upon arriving at Seattle-Tacoma International Airport, the airport’s rental car facilities are found in a separate building that is accessible by 24/7 shuttle buses. The shuttle buses pick up from outside of Baggage Claim on both the north and south side of the terminal.
  • Traveling from the suburbs to Boston Logan International Airport? One easy option is to hop on the Logan Express instead of renting a car. The Logan Express features stops in many of Boston’s suburbs such as Framingham, Back Bay, and Woburn.
See more tips

Prefer to fly non-stop from Boston to Seattle?

Find which airlines fly direct from Logan Intl to Seattle/Tacoma Intl, which days they fly and book direct flights.

Nonstop departures

Boston Logan Intl to Seattle/Tacoma Intl

Monday

Aer Lingus, Air France, Air Tahiti Nui, +17 more

Aer Lingus, Air France, +18 more

Tuesday

Aer Lingus, Air France, Air Tahiti Nui, +15 more

Aer Lingus, Air France, +16 more

Wednesday

Aer Lingus, Air France, Air Tahiti Nui, +16 more

Aer Lingus, Air France, +17 more

Thursday

Aer Lingus, Air France, Air Tahiti Nui, +16 more

Aer Lingus, Air France, +17 more

Friday

Aer Lingus, Air France, Air Tahiti Nui, +15 more

Aer Lingus, Air France, +16 more

Saturday

Aer Lingus, Air France, Air Tahiti Nui, +15 more

Aer Lingus, Air France, +16 more

Sunday

Aer Lingus, Air France, Air Tahiti Nui, +15 more

Aer Lingus, Air France, +16 more

See more direct flights

Nonstop returns

Seattle/Tacoma Intl to Boston Logan Intl

Monday

Air France, Air Tahiti Nui, Alaska Airlines, +13 more

Air France, Air Tahiti Nui, +14 more

Tuesday

Air France, Air Tahiti Nui, Alaska Airlines, +15 more

Air France, Air Tahiti Nui, +16 more

Wednesday

Air France, Air Tahiti Nui, Alaska Airlines, +13 more

Air France, Air Tahiti Nui, +14 more

Thursday

Air France, Air Tahiti Nui, Alaska Airlines, +15 more

Air France, Air Tahiti Nui, +16 more

Friday

Air France, Air Tahiti Nui, Alaska Airlines, +13 more

Air France, Air Tahiti Nui, +14 more

Saturday

Aer Lingus, Air France, Air Tahiti Nui, +16 more

Aer Lingus, Air France, +17 more

Sunday

Air France, Air Tahiti Nui, Alaska Airlines, +15 more

Air France, Air Tahiti Nui, +16 more

See more direct flights
See more direct flights

Top 5 airlines serving from Boston to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Boston to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 9114 reviews
7.3entertainment
7.9comfort
8.2boarding
8.6crew
7.3food
Airline reviews

It was much better than expected. Short flight and smaller plane so no entertainment or food.

10.0 ExcellentAnonymous, Apr 2024SLC - SEA
Read more about Alaska Airlines reviews

It was much better than expected. Short flight and smaller plane so no entertainment or food.

It took around two hours to depart. Just sitting in the tamarack waiting. It impacted my traveling plans in a very dramatic way. When we returned, it took around two hours for us to be able to get our luggage. Ridiculous!!

I thought every thing was good with the acceptation of the long layover between Seattle and the Tampa trip.

While the flight and the legroom was good boarding took a long time. The different groups Boarding made no sense as those in the back of the flight boarded last causing delays as people try to find room for their luggage in the upper bins. While there were plenty of seats on the flights We were spaced so that some rows were filled and others were empty. My first flight was very crowded and uncomfortable. On the way back both flights did not have Wi-Fi nor the entertainment package. We were only made aware of this a few hours before the flight. Since the flight was in the morning, I was asleep and was not able to download Books or other media to my phone. This is my first time flying Alaska airlines and I will admit to thinking twice before I do so again.

Our flight was delayed by six hours, our plane never left Portland the night before but the airline didn’t inform anyone till two hours before a six am flight. The plane, our plane never left the west coast! No plane no flight, simply let folks know when you know, not hours and hours later. No one apologized, no one said much of anything, we were just expected to wait quietly and await instructions.

The staff were great and the layover times were excellent no multiple hours. I just hate the Boxed Water. So you really have to purchase high price water in the airport.

Both flights were delayed. We sat on the tarmac on Boise for 3 hours with little updates

This flight was significantly affected by poor wifi connections. I couldn’t get my work done because the wifi kept dropping. Even texts were not going through. There is no seat power in premium class either. I fly a lot. Today was my 10th flight in 4 weeks. This was by far the only flight that was sub par.

4 out of 4 flights cancelled or delayed. 5th trip with similar experience

On time, comfortable seats with plenty of leg room, nice staff. Pretty good!

It was a Red-Eye flight so was not comfortable enough to sleep, but seat was as expected. Crew was great and in-flight entertainment was excellent. Flight was smooth

Standard economy seats on Deltas 767 were better than Alaska premium seats on their 737 MAX9; more legroom, wider seats. Entertainment was great, no ipad or phone required. Could have included a meal service.

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

The boarding process was terrible especially with an indirect flight Chicago to Seattle to San Diego was terrible talking about we overbooked a flight idk if I’d take this airline ever again we got off our flight from Chicago to Seattle and we traveled for business and they told us our connecting flight was over booked and their was no seats asking people to take a delayed next flight and they don’t tell anyone coughing to wear masks seats 30A-B were terrible during the flight no one wants to sit next to people coughing all around I don’t want to be sick traveling for work or get sick anytime it’s very upsetting the staff doesn’t take this stuff serious to tell them to wear masks when they see people coughing and sneezing

Flight was on time, the crew was personable & professional, & the plane arrived early which was nice.

This flight landed early, but deplaned late. We were stuck sitting and waiting for a gate for over an hour

My flight was very clean and the location was comfortable. The service was great. A satisfying flight!

I appreciated being upgraded. I was very disappointed with my 13 hr layover in Seattle to geg, while my friends who flew Alaska made it home as scheduled. I had to reserve a hotel on my dime.

Delta needs to step up the meals and snacks. They have been serving the same two meals for three years.... It is time to change it up.

Really liked the choice of the 4 free snack options. Crew great. Good vibe on plane.

I had back trouble prior to my flight and everyone was great about helping me.

My tv was broken on the flight which is disappointing when you pay for a seat and expect a service

Always delays from Boston to Salt lake but this time was very long. Don’t understand while they board the passengers and then make them sit in the plane

Service for food to our seat was a bit slow. Snack choices were just pretzels or baked chips. My seat cushion was not attached. Other than Barbie, video choice were not very good or current.

After we landed, we were held on the plane for 30 minutes. There was no one at the gate once we landed and we forced to sit on a plan that had already over an hour delayed.

almost 4 hour delay as they over booked and had to wait for 8-10 volunteers to agree to travel next day.

Old plane. No outlets for laptop or phone. Seats worn out. Area around seat dirty.

I loved the flight and the crew. It was comfortable and smooth.

The crew was openly hostile and condescending to the customers. They spent the majority of that time in the rear talking and seemed really agitated when people asked questions. I heard five different people told that the information they requested was in the handout or safety brief.

ticketing issues caused many customers to have to go back to check in after waiting in security, then go through security line again.

i suspect i caught flu on this flight as i could hear someone coughing a few rows back and ended up with flu a few days later. also tiresome to have to watch movies on my device by holding up smartphone screen, would have liked to have in seat display.

I had trouble finding a boarding pass because I had an hour between Flights and American did not see my flight I believe because I was ticketed through KAYAK. I did not have enough time to go to the desk before boarding so I went to the desk and told them while I was boarding and they had a boarding pass for me within three minutes. Nice. I paid extra to have more legroom and it is definitely worth it for a six hour flight. I would’ve paid for a decent dinner, but they didn’t offer anything but a snack box —not good for six hours.

delayed delayed delayed. was supposed to have a 2 hour layover and very nearly missed my connection.

Despite a bumpy flight the pilot was great. The rest of the crew on the other hand couldn’t care less if a passenger would colapse and die. Horrible service, robot like, lifeless…

No service due to turbulence. No entertainment on this type of aircraft. But nice old comfortable seats.

Terrible flight seats where really uncomfortable I had body aches for 2 days and flight was delays almost two hours

Great service, on time, professional experience. Great landing under challenging crosswind conditions at BWI. I made my connection in Charlotte despite the plane getting stuck finding a gate to park in on arrival. The only glitch -- the Airbus 320 from CLT to BWI was quite comfortable, but the larger 321 from Logan to Charlotte had minimal leg/knee room. I get that it's a high volume route but dang, couldn't even open my laptop it was so tight

Very smooth for one of the busiest travel days of the year and the crew was great.

Customer service prior to boarding is horrible Communication regarding boarding gates is released at the last minute and the gates are very distant from Customs. Very disappointing

Flight was delayed 4 hours for no reason given. We were not updated. We were not given any food or drink. We were not offered any compensation.

Not much seat room, but that was unexpected. But the seat headrest was very uncomfortable.

First the good, everyone was friendly and efficient. Flight was smooth and plane was very clean and new. Now the bad, seats have almost no padding on your behind. I was in exit row so I had tons of leg room for a 6' 2" bean pole with long legs. Everything was extra - water, soda, snacks everything besides oxygen. Ya get what you pay for, and my flight was cheap as you could ever want it, so no worries.

First the good, everyone was friendly and efficient. Flight was smooth and plane was very clean and new. Now the bad, seats have almost no padding on your behind. I was in exit row so I had tons of leg room for a 6' 2" bean pole with long legs. Everything was extra - water, soda, snacks everything besides oxygen. Ya get what you pay for, and my flight was cheap as you could ever want it, so no worries. They dont really bother you about carry-on size, I brought a descent sized backpack and they didnt even check.

Spirit canceled the flight in March and never notified me!

Seats suck, not enough room, overcrowded planes, hectic situation all together.

Pretty good. Would’ve been excellent if we would have left on time and the crew wasn’t late.

I do not like the customer service, I had an emergency and needed to cancel a pet reservation right after I had booked it and they would not do anything but issue a credit. I haven't flown in years as I have 7 kids and don't have spare time. I want my $125 back on my card please

Spirit airline tries to screw you at every opportunity. Spirit wanted 65$ for an extra pound in the suitcase Made me open the suitcase at the counter to remove 1 pound. Staff very cold and rude Will never fly spirit again and will recommend same to family and friends

Delayed..4 times...completely disorganized boarding. After 5 hours they scrambled to move ppl off plane bc they overbooked. Then they didn't have a cabin crew. WiFi on plane didn't work. Zero amenities. Once we boarded we sat on tarmac for an hour. Explore all alternate options including purchasing a pair of hiking boots and walking to your destination instead of flying spirit.

what I like about Spirit is that the pilot and crew are good communicators. The plane itself - well, its a budget airline and you get what is expected, But I generally just feel safer, somehow, when I know more about what is going on - and Spirit has always done a good job of telling me what is going on: why the delay, why the turbulence, why this and that... and that means a lot to me.

Book cheap flights from Boston to Seattle

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Boston to Seattle found on KAYAK in the last 72 hours.
5/11sáb.
3 stopsSpirit Airlines
29h 45mBOS-SEA
$134
5/17vie.
2 stopsSpirit Airlines
19h 14mBOS-SEA
$137
6/10lun.
1 stopJetBlue
8h 27mBOS-SEA
$163
5/29mié.
nonstopDelta
6h 17mBOS-SEA
$164
6/8sáb.
nonstopAlaska Airlines
6h 09mBOS-SEA
$167
5/15mié.
1 stopAmerican Airlines
9h 50mBOS-SEA
$172
5/29mié.
1 stopAmerican Airlines
10h 34mBOS-SEA
$173
6/12mié.
nonstopDelta
6h 17mBOS-SEA
$179
5/17vie.
1 stopAlaska Airlines
10h 29mBOS-SEA
$198
5/10vie.
nonstopJetBlue
6h 05mBOS-SEA
$204

Search by stops

Search by airline

Search by price

Last minute flights from Boston to Seattle

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Boston to Seattle that are departing in the next 10 days.
4/30mar.
multi-stop
30h 30mBOS-SEA
5/7mar.
multi-stop
14h 54mSEA-BOS
$319
4/30mar.
nonstopAlaska Airlines
6h 14mBOS-SEA
5/4sáb.
nonstopAlaska Airlines
5h 20mSEA-BOS
$327
4/30mar.
multi-stopSpirit Airlines
20h 05mBOS-SEA
5/7mar.
multi-stopSpirit Airlines
14h 54mSEA-BOS
$336
4/29lun.
multi-stopSpirit Airlines
18h 45mBOS-SEA
5/6lun.
multi-stopSpirit Airlines
26h 38mSEA-BOS
$351
4/26vie.
multi-stopAmerican Airlines
9h 54mBOS-SEA
5/7mar.
multi-stopAmerican Airlines
9h 31mSEA-BOS
$417
4/26vie.
multi-stopAmerican Airlines
9h 54mBOS-SEA
5/6lun.
multi-stopAmerican Airlines
8h 57mSEA-BOS
$418
4/30mar.
multi-stopDelta
31h 10mBOS-SEA
5/4sáb.
nonstopDelta
5h 20mSEA-BOS
$424
4/30mar.
nonstopDelta
6h 15mBOS-SEA
5/7mar.
nonstopDelta
5h 37mSEA-BOS
$502
4/26vie.
multi-stopJetBlue
12h 37mBOS-SEA
5/7mar.
nonstopJetBlue
5h 29mSEA-BOS
$543
4/27sáb.
multi-stopJetBlue
12h 37mBOS-SEA
4/30mar.
nonstopJetBlue
5h 32mSEA-BOS
$684

Search by stops

Search by airline

Search by price

Boston - Seattle Flights

Departure:

Boston (BOS)United States

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Boston

Cabin classes:

$1,429
$1,220
$876
$153