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SEA - BOS

Find cheap flights from Seattle to Boston from $114

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Boston departing on 4/16. 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
Thu 4/18
Thu 4/25

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Boston.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Boston.
In the last 7 days travelers have searched 47,600,107 times on KAYAK, and here is why:

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Cheap flight deals from Seattle to Boston

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Boston 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.
10:20 pm - 6:36 amSEA-BOS
5h 16mnonstop
5:40 pm - 8:45 pmBOS-SEA
6h 05mnonstop
$237JetBlue
Find Deal
Mon, Mar 25 - Sun, Mar 31
11:50 pm - 1:12 pmSEA-BOS
10h 22m1 stop
5:39 pm - 9:04 pmBOS-SEA
6h 25mnonstop
$246JetBlue
Find Deal
Tue, Mar 26 - Wed, Mar 27
11:40 pm - 11:57 amSEA-BOS
9h 17m1 stop
5:45 am - 12:38 pmBOS-SEA
9h 53m1 stop
$254American Airlines
Find Deal
Mon, Mar 25 - Sun, Mar 31
12:59 am - 1:36 pmSEA-BOS
9h 37m1 stop
4:53 pm - 11:57 pmBOS-SEA
10h 04m1 stop
$256American Airlines
Find Deal
Mon, Mar 25 - Thu, Mar 28
10:40 pm - 6:59 amSEA-BOS
5h 19mnonstop
7:10 pm - 10:25 pmBOS-SEA
6h 15mnonstop
$267Delta
Find Deal
Fri, Apr 26 - Tue, Apr 30
7:00 am - 5:35 pmSEA-BOS
7h 35m1 stop
5:54 pm - 12:58 amBOS-SEA
10h 04m1 stop
$283United Airlines
Find Deal
Tue, Apr 16 - Tue, Apr 30
7:25 am - 3:45 pmSEA-BOS
5h 20mnonstop
6:25 pm - 9:59 pmBOS-SEA
6h 34mnonstop
$287Delta
Find Deal
Thu, Mar 28 - Mon, Apr 8
7:43 pm - 8:18 amSEA-BOS
9h 35m1 stop
4:15 pm - 10:30 pmBOS-SEA
9h 15m1 stop
$294United Airlines
Find Deal
Mon, Apr 8 - Mon, Apr 22
3:39 pm - 11:59 pmSEA-BOS
5h 20mnonstop
6:10 pm - 8:46 amBOS-SEA
17h 36m1 stop
$308Alaska Airlines
Find Deal
Tue, Apr 16 - Tue, Apr 23
9:26 pm - 5:45 amSEA-BOS
5h 19mnonstop
7:00 am - 10:15 amBOS-SEA
6h 15mnonstop
$317Alaska Airlines
Find Deal
Sun, Apr 7 - Tue, Apr 23

Flights from Seattle to Boston - Travel Insights & Trends

Get data-powered insights and trends into flights from Seattle to Boston 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 Seattle to Boston?

The average price of all flights from Seattle to Boston clicked on KAYAK for each day over the last 12 months.
For Seattle to Boston, Wednesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Boston back to Seattle, the best deals are generally found on Tuesday, with Sunday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Seattle to Boston, 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 Seattle to Boston is February, where tickets cost $218 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $503 and $498 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Seattle to Boston, 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 Seattle to Boston, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 14 days before departure.

Which airlines provide the cheapest flights from Seattle to Boston?

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 Seattle to Boston were found on JetBlue ($237) and American Airlines ($254). Sun Country Air proposed the cheapest one-way flight at $118.

Which airlines fly most frequently between Seattle and Boston?

Seattle and Boston are connected by different airlines. The airlines that fly that route the most regularly are Delta (6 flights per day), Alaska Airlines (5 flights per day), and JetBlue (one flight per day).

Which airlines fly non-stop between Seattle and Boston?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Seattle to Boston.
There are 3 airlines that fly nonstop from Seattle to Boston. They are: Alaska Airlines, Delta and JetBlue. The cheapest price of all airlines flying this route was found with JetBlue at $133 for a one-way flight. On average, the best prices for this route can be found at JetBlue.

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

Each day, there are between 9 and 15 nonstop flights that take off from Seattle and land in Boston, with an average flight time of 5h 23m. The most common departure time is 7:00 am and most flights take off in the morning. Each week, there are 87 flights. The most frequent day of departure is Thursday, when 17% of all weekly flights depart. The fewest flights depart on a Saturday.

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

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 Seattle to Boston take?

Direct flights take on average 5h 16m to travel the 2,487 miles between Seattle and Boston.

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

Early birds can take the earliest flight from Seattle at 7:00 am and will be landing in Boston at 3:26 pm.

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

If you prefer to fly at night, the latest flight from Seattle to Boston jets off at 10:55 pm and lands at 7:20 am.

Good to know

Low season

January

High season

August

Cheapest flight

$114
Best time to beat the crowds with an average 36% drop in price.
Most popular time to fly with an average 23% increase in price.
Flight from Seattle to Boston

When to book flights from Seattle to Boston

Are your dates flexible? Find out the best times to travel from Seattle to Boston 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 Seattle to Boston

  • How can I connect from downtown Seattle to Seattle-Tacoma International Airport?

    Sound Transit, Link Light Rail, offers the easiest means to connect from the city center of Seattle to SEA for your departure to BOS. The service reaches the terminals in approximately 40min. Other travel options include taxis and rideshares. Still, buses are the most convenient means due to their relatively lower costs.

  • Where can I rent a car at Boston Logan International Airport?

    Boston Logan International Airport operates its own off-site car rental center at 15 Transportation Way. Upon arrival, you will find a free shuttle bus service at the curbside on the lower level of each terminal. The blue- and white-colored buses depart every 10-15min. Alamo and Dollar are some agencies offering shuttle and pickup services at BOS.

  • Which cities can I visit near Boston Logan International Airport?

    Aside from serving as the primary getaway to Boston, BOS also serves as the destination station for visitors from Seattle to neighboring towns like Smithfield, Wareham, Shirley, Bedford, and Somerset. With these destinations about an hour’s drive away, you can easily explore them by public transportation, car rentals, or taxis.

  • How can I move between terminals at Boston Logan International Airport?

    BOS operates four terminals. Domestic flights depart and arrive via Terminals A, B, and C, while Terminal E handles all international flights. Walkways link all the terminals, and you can walk around if you don’t have heavy luggage. Regular shuttles run between the terminals every 5-15 minutes.

  • Are pets allowed on flights between Seattle and Boston?

    Both SEA and BOS have pre- and post-security pet-relief areas where your cat or dog can relax and relieve itself. In addition, most flights along this route allow pets into their cabins, including cats and dogs. Nevertheless, checking with your carrier regarding specific requirements like health certificates and age is helpful.

  • Are there accessible services for travelers from Seattle to Boston who are disabled?

    Most airlines require the booking of wheelchairs at least 48 hours before departure from SEA to BOS. At SEA, travelers with limited mobility receive cab-to-aircraft services and will find well-trained airport and airline staff at BOS to guide them through the terminals. Furthermore, basic amenities in both airports, like restrooms, are accessible.

  • Where can I find bus services at Logan airport?

    Moving around the Logan airport is the least of your worries since the airport provides free bus services. They ferry travelers to various spots at varying intervals. The buses are easy to board and to load luggage, thanks to their low floors. They also have a wheelchair lift, making them friendly to the disabled. You’ll find them to the south of each terminal.

  • What assistance can I get at the Seattle airport?

    The airport works toward giving travelers a memorable experience when waiting for their flights. You can find advanced facilities and welcoming staff to help you move around and offer you all the assistance needed. The disabled can access wheelchair services, which the airport provides at no cost upon making a reservation.

  • How fast can I get accommodation upon landing at Logan airport?

    You can get accommodation near Logan airport for approximately $144. Take a free shuttle bus at the terminals to access hotels such as the Homewood Suites, located 3.5 miles away. Enjoy an indoor pool table, Wi-Fi, and a fitness center. The hotel serves complimentary breakfast too.

  • What can keep me busy as I wait for my flight to Seattle Airport?

    Travelers can enjoy a walking tour to explore attractions in the neighborhood using underground paths and learn about the history. Waiting for your flight does not have to be boring, as there is too much fun around the airport.

  • What is the cheapest flight from Seattle to Boston?

    In the last 3 days, the lowest price for a flight from Seattle to Boston was $114 for a one-way ticket and $237 for a round-trip.

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

    No

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

    JetBlue, Alaska Airlines, Delta, American Airlines, and Hawaiian Airlines offer inflight Wi-Fi service on the Seattle to Boston flight route.

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

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

  • Which airline alliances offer flights from Seattle to Boston?

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

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

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

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

    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 $393 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 $398 and an overall rating of 8.0.

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

    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 Seattle to Boston.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston from Seattle 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 Seattle to Boston?

    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 Boston with an airline and back to Seattle with another airline. Booking your flights between Seattle and BOS 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 Seattle to Boston?

    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 Boston from Seattle 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 SEA to Boston

  • Looking for a cheap flight? 25% of our users found flights on this route for $163 or less one-way and $242 or less round-trip.
  • As you book your flight from Seattle to Boston, you’ll find that numerous airlines offer one-stop journeys between Seattle-Tacoma International Airport (SEA) and Boston Logan International Airport (BOS). For instance, American Airlines transits through Phoenix Sky Harbor International Airport (PHX), while Spirit Airlines has a layover at Las Vegas International Airport (LAS).
  • Boston Logan International Airport has efficient customer service information booths where arriving passengers can seek information about language assistance, terminal services, car rentals, accessible ground transportation, and more. These amenities are close to every terminal's baggage claim area on the arrivals level (first floor).
  • Suppose you arrive before your flight from SEA to BOS. In that case, you can choose to relax in the observation decks. The observation deck at SEA is located on the mezzanine level of the Central Terminal. Also, Concourse D is an ideal outdoor viewing area where you can watch the planes land and take off.
  • Seattle International Airport offers tranquil air services to travelers flying to Boston. You can book one among the several nonstop flights and land at Logan International Airport. Airlines operating on this route include Alaska and American Airlines.
  • If you are departing from Seattle airport, you can park your car and fly with your keys. You’ll find dedicated staff to assist you in parking and even carry your bags to the airport. What more, you enjoy a complimentary bottle of water as you head to the terminals.
  • While at Seattle airport, you can enjoy free Wi-Fi and take snacks and drinks at the elegant lounges that the facility has to offer. You can book your lounge tickets that cost around $49. At Courtyard A, you’ll find the Club Sea lounge that serves beer and other beverages.
  • Seattle airport features multiple artistic works that include photography, sculpture, and painting, among others. Travelers can explore creative artwork by reputable artists such as Robert Rauschenberg.
  • Travelers enjoy a variety of dining services as they wait to depart from Seattle International Airport. There are gift shops, fashion brands, and duty-free services offered at the waiting halls.
  • For those travelers with young kids, Seattle airport provides nursing rooms located in various areas. Find one in the Children Play Area at Concourse A. Another nursing room exists in Concourse D next to D24. You’ll also find one above checkpoint 3.
  • Travelers landing at Logan International Airport can access the United Club lounge located in Terminal B at $59 for adults. The lounge serves drinks, premium food, snacks, and breakfast. Other services include printing, photocopies, and free Wi-Fi.
See more tips

Prefer to fly non-stop from Seattle to Boston?

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

Nonstop departures

Seattle/Tacoma Intl to Boston Logan Intl

Monday

Aer Lingus, Air France, Air Tahiti Nui, +12 more

Aer Lingus, Air France, +13 more

Tuesday

Aer Lingus, Air France, Air Tahiti Nui, +14 more

Aer Lingus, Air France, +15 more

Wednesday

Aer Lingus, Air France, Air Tahiti Nui, +14 more

Aer Lingus, Air France, +15 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, +14 more

Aer Lingus, Air France, +15 more

Saturday

Aer Lingus, Air France, Air Tahiti Nui, +13 more

Aer Lingus, Air France, +14 more

Sunday

Aer Lingus, Air France, Air Tahiti Nui, +14 more

Aer Lingus, Air France, +15 more

See more direct flights

Nonstop returns

Boston Logan Intl to Seattle/Tacoma Intl

Monday

Aer Lingus, Air Tahiti Nui, Alaska Airlines, +16 more

Aer Lingus, Air Tahiti Nui, +17 more

Tuesday

Aer Lingus, Air Tahiti Nui, Alaska Airlines, +14 more

Aer Lingus, Air Tahiti Nui, +15 more

Wednesday

Aer Lingus, Air Tahiti Nui, Alaska Airlines, +16 more

Aer Lingus, Air Tahiti Nui, +17 more

Thursday

Aer Lingus, Air Tahiti Nui, Alaska Airlines, +15 more

Aer Lingus, Air Tahiti Nui, +16 more

Friday

Aer Lingus, Air Tahiti Nui, Alaska Airlines, +16 more

Aer Lingus, Air Tahiti Nui, +17 more

Saturday

Aer Lingus, Air Tahiti Nui, Alaska Airlines, +13 more

Aer Lingus, Air Tahiti Nui, +14 more

Sunday

Aer Lingus, Air Tahiti Nui, Alaska Airlines, +16 more

Aer Lingus, Air Tahiti Nui, +17 more

See more direct flights
See more direct flights

Top 5 airlines serving from Seattle to Boston

Need help choosing which airline to fly with from Seattle to Boston? 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 KAYAK reviews.
8.1
Alaska AirlinesOverall score based on 9147 reviews
79comfort
73food
74entertainment
86crew
81overall
83boarding
Airline reviews

I think the pilots deserve most of the credit, the flight was smooth and they got us to Denver in a major winter storm when many of the airlines cancelled on other people . Alaska has my loyalty- must have better more capable pilots. Was on 720 - Seattle- Denver. The crew was alright, one of the stewards was obnoxious about applying for a credit cards she went on and on about how much she used hers- it was over the top and a turn off.

Read more about Alaska Airlines

I think the pilots deserve most of the credit, the flight was smooth and they got us to Denver in a major winter storm when many of the airlines cancelled on other people . Alaska has my loyalty- must have better more capable pilots. Was on 720 - Seattle- Denver. The crew was alright, one of the stewards was obnoxious about applying for a credit cards she went on and on about how much she used hers- it was over the top and a turn off.

Midway through the flight the stewardess moved a man from the back of the plane to the empty seat next to me, since I was sleeping I had not voiced a preferance either way. The stewardess woke me up to say I could move to the back of the plane if I objected to the man sitting next to me, at which point I simply asked "Why?" she was speechless and quickly returned to her duties. It was a strange encounter that seemed to make no sense, even now in reflection.

Considering today's travel conditions Alaska did everything that they could do for me. I'm hoping the return flight will be as uneventful.

I appreciated the check-in at SEATAC - a knowledgeable person was available. I found it easy to ask questions as I went along. I hadn't been at SEATAC for a year and was not that familiar. Parking was fine at Sacramento

Amazing! I will fly Alaskan as much as I can when traveling .

Boarding was smooth and efficient. Flight Attendants were polite and friendly. Lots of overhead bin space because of the way people placed their bags.

The flight was bumpy and hard landing. No in-flight entertainment onboard couldn't connect to wifi.

My baggage arrived at the airport on an earlier flight. It would have been nice if I would have gotten a text. I waited until all the luggage had arrived before Ivwent to the baggage counter!

Alaska cancelled out our reservations last minute even if there’s a lot of available seats.

The price was great and the overnight flight was perfect for my trip timing. The crew was super. (12D) Seats are so small, and under seat storage was compromised by aircraft feature that made it impossible to put my bag under the seat….

public website still broken for years randomly blocking browsers with privacy options active after loading a page maybe once. check-in on laptop was almost impossible but eventually randomly worked. had to print pass at airport since couldn't get back in to load digital pass on mobile firefox or chrome. red eye flight so smooth onboarding, plenty of room to spread out, easy offboarding. onboard wifi instructions mention vpn can cause problems connecting but fails to also mention private dns. no printed or built in menu list, seems weird to require personal device to point at qr code link for menu which does not even allow direct ordering. people with health condition risk related dietary restrictions trying to avoid for example cholesterol and sugar are left guessing what they can order either way without nutritional info highlights (cranberry juice was minute maid cocktail with as much suger as typical can of soda). tap to pay wasn't working and always seems sketchy to manually enter card info. good movie variety, so limited tv was okay.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

Terrible. Delta delays caused us to miss our flight and they did nothing to fix it.

The A330-200 was showing its age but otherwise this was a pleasant flight with friendly crew. The meals/snack provided were pretty good.

Mi primera conexión se retrasó por lo cual perdí mi segunda conexión la cual salió adelantada

The most unprofessional and disorganized experience I’ve ever had with an airlines. After the flight was diverted on the runway and we returned to the gate, there was no communication about the plans and it took an additional 5 hours to get set up with a hotel and a new flight, information that was not readily given to the passengers and mostly gotten second hand from what other passengers heard from each other. Based on this experience I cannot recommend flying delta again

Crew was not friendly when I went to request a seat change.

There were choices for the snacks. Good choices and tasty lunch and breakfast as well.

The flight crew was amazing. I’m very tall and they moved me to an exit row unsolicited!!! Amazing service.

I loved the wifi, much better than Delta. Seats were old. and bathrooms dingy.

There was no wheelchair or wheelchair escort at the gate..unacceptable

Delayed 4 hours because of maintenance issue they knew about all day. Get another plane. Time is precious!

I liked that boarding and take off were timely despite a 15 minute delay due to weather. The pilot communicated with us the entire flight keeping us informed re: turbulance and slight delays on the runway after we landed.

Has been always great except flight cancelation in the past at very last minute waiting till 2am and we when have to beg for overnight accommodation

There were weather issues and coding problems whatever those refer to, but JetBlue, for two days in a row was unbelievably late. Several hours late, resulting in almost no sleep for passengers like me.

The plane was very hot. There were delays . Generally, the flight was great.

If jet blue is going to offer tv at every seat, fix the headphone connection so you can hear. Haven’t had a usable headphone jack in years

Plane is old and seats are worn. Add to it the plane was dirty. No plugs for laptop.

Always like Jet Blue! It seems, however, that people are getting bigger & seats are getting smaller! We had a very full flight and I couldn't get an aisle seat like I always do. I wish there were more leg room. People sitting next to me were very nice though so it was fine to disturb them if I needed to use the restroom. Otherwise the flight was fine but a bit long.

737 Max was leaking water into the cabin through the windows. Overhead bins opened on landing. Bad bad plane.

I was not able to buy food in the flight. They refer to include your Credit card in the APP, and if you are not from USA (i have a credit card form Canada) it is not possible

The plane boarded and deplaned twice before the crew timed out. Flight was 7 hours late departing. Horrible experience!

Over two hours wait to get wheelchair assistance from arrival to the departure gate for LA was unreasonable even though there appreared to be heavy demand.

Everything was very good. Boarding and takeoff were on time and organized. Had a good flight

Wouldn’t let me check in said couldn’t find a ticket had to wait very long Time

Awful…flight was delayed more than 12hrs, missed all connections to Fort Wayne, IN, had to get flight to another city 2 hours from my destination, flight was again delayed by 40 mins because they did not have enough fuel, again missed a connection, finally arrived in Indiana at 11pm…but before my 2 hour drive home, ay, no Five That Our Luggage Never Made On The plane and Still In Chicago

Other than the two hour delay, it was fine. Of course they were very professional and kept us informed throughout the whole delay..

Wheelchair assistance was not complete. The person left me at the departure gate without informing the groundstaff of my requirements. I had to walk to the departure counter to ask for help to reach the plane door. The crew informed me that in future they were not allowed to help passengers like me, senior citizen and Wheelchair passenger with placing their carry on bags in the overhead compartments!

Crew is way too many times on the intercom re explaining the same thing

I had the exit seat with all the leg room I could ask for. Great!

I wish there were no credit card announcements. I paid hundreds of dollars, I don't need to pay again by sitting through advertisements.

The Wi-Fi is more expensive on AA that other airlines and it doesn't cover the whole flight; it's by the hour. So, the Wi-Fi for the flight from Spokane to Phoenix is $45. They also charge for checked luggage, unlike airlines like Southwest. The only plus side was that there are power outlets on the flight, and you get a full can of soda, instead of a partial, like most other airlines.

This plane is my favorite despite the very limited overhead space. Seats are comfortable!

3.5 hour delay!!! No plane for hours, mechanical issues and poor communication from airline. Horrible! Supposed to land at 8:54, landed at 12:32!

This was a Business class award ticket redemption using Alaska miles. Flagship Business was great for a transatlantic evening flight!

The flight got delayed more than an hour due to maintenance issue after the passengers were all on board. I missed my connecting flight and had a trouble finding a next flight. The crews didn’t seem to care about the inconvenience of the passengers missing a next flight. It was very frustrating experience flying with American Airlines. I will not fly with AA in the future.

The flight was delayed, so connections were missed. While in flight, they helpfully booked on another flight with another airline to the final destination. But failed to provide any information such as it entailed first flying to another country, waiting for several hours, then flying on to the final destination. Luggage is....somewhere. Maybe it will be located, someday.

Flight delayed several hours so missed connection. Plane boarded from the front to the back made things excessively slow to board Seats to narrow and I'm a very slim person Food was awful - had diarrhea for hours after eating it Heathrow transfer was a nightmare... few people at security, check through took over an hour. No one seemed to be in a good mood of the staff. They all seemed annoyed by their jobs. One large argument between manager and his staff. It will be difficult for me to consider flying BA again after such an experience - certainly will reconsider ever flying through Heathrow again.

Had the best flight in a long time. The captain was amazing, friendly, kept us informed of any weather or sites to see. Took good care of the flight attendants and made us feel safe and confident. Smooth lovely flight.

Book cheap flights from Seattle to Boston

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Seattle to Boston found on KAYAK in the last 72 hours.
4/16Tue
2 stops
16h 12mSEA-BOS
$114
5/21Tue
2 stops
27h 04mSEA-BOS
$116
3/26Tue
nonstopDelta
5h 25mSEA-BOS
$119
5/6Mon
1 stopAmerican Airlines
10h 33mSEA-BOS
$122
3/26Tue
1 stopAmerican Airlines
9h 49mSEA-BOS
$127
4/15Mon
nonstopJetBlue
5h 32mSEA-BOS
$134
5/10Fri
nonstopDelta
5h 32mSEA-BOS
$154
4/18Thu
nonstopJetBlue
5h 32mSEA-BOS
$174
4/7Sun
nonstopAlaska Airlines
5h 19mSEA-BOS
$184
6/6Thu
nonstopAlaska Airlines
5h 24mSEA-BOS
$230

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Last minute flights from Seattle to Boston

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 Seattle to Boston that are departing in the next 10 days.
3/21Thu
multi-stopAmerican Airlines
7h 58mSEA-BOS
3/25Mon
multi-stopAmerican Airlines
9h 53mBOS-SEA
$418
3/22Fri
multi-stopAmerican Airlines
8h 30mSEA-BOS
3/24Sun
multi-stopAmerican Airlines
10h 22mBOS-SEA
$419
3/19Tue
multi-stopUnited Airlines
14h 34mSEA-BOS
3/25Mon
multi-stopUnited Airlines
9h 48mBOS-SEA
$426
3/22Fri
nonstopJetBlue
5h 16mSEA-BOS
3/24Sun
nonstopJetBlue
6h 25mBOS-SEA
$430
3/21Thu
nonstopDelta
5h 17mSEA-BOS
3/28Thu
nonstopDelta
6h 32mBOS-SEA
$432
3/21Thu
multi-stopDelta
9h 36mSEA-BOS
3/31Sun
nonstopDelta
6h 32mBOS-SEA
$441
3/23Sat
nonstopJetBlue
5h 16mSEA-BOS
4/1Mon
multi-stopJetBlue
10h 39mBOS-SEA
$471
3/19Tue
nonstopAlaska Airlines
5h 18mSEA-BOS
3/29Fri
nonstopAlaska Airlines
6h 20mBOS-SEA
$477
3/20Wed
multi-stopUnited Airlines
8h 00mSEA-BOS
4/2Tue
multi-stopUnited Airlines
10h 44mBOS-SEA
$521
3/20Wed
nonstopAlaska Airlines
5h 18mSEA-BOS
3/26Tue
nonstopAlaska Airlines
6h 20mBOS-SEA
$557

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Seattle - Boston Flights

Departure:

Seattle (SEA)United States

Destination:

Boston (BOS)United States

Return flight deals:

Boston - Seattle

Cabin classes:

$609
$1,134
$1,022
$133