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Find cheap flights from Seattle to Falmouth from $86

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 Falmouth departing on 9/10. 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
Mon 7/1
Mon 7/8

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Good to know

Low season

January

High season

August

Cheapest flight

$86
Best time to beat the crowds with an average 40% drop in price.
Most popular time to fly with an average 20% increase in price.
Flight from Seattle to Boston

When to book flights from Seattle to Falmouth

Are your dates flexible? Find out the best times to travel from Seattle to Falmouth based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

FAQs for booking flights from Seattle to Falmouth

  • Which airports will I be using when flying from Seattle to Falmouth?

    When flying out of Seattle you’ll be using Seattle/Tacoma Intl. Falmouth does not have its own airport so you’ll be flying into nearby Boston Logan Intl airport, which is 59.7 mi away.

  • How long does a flight from Seattle to Falmouth take?

    Direct flights cover the 2,487 miles separating Seattle and Falmouth in about 5h 14m.

  • How many flights are there between Seattle and Falmouth?

    37 direct flights run between Seattle and Falmouth on a daily basis. On average, there are about 265 departures each week.

  • What’s the cheapest day of the week to fly between Seattle and Falmouth?

    Consider leaving on a Tuesday and avoid Mondays if you are looking for the best rates. For your return to Seattle, you’ll find the best rates on Tuesdays and the most expensive ones on Thursdays.

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

    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 Falmouth.

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

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

    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 Falmouth with an airline and back to Seattle with another airline.

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

    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 Falmouth from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines provide the cheapest flights from Seattle to Falmouth?

    In the last 72 hours, the cheapest one-way ticket between Seattle and Falmouth found on KAYAK was with Spirit Airlines for $86. Spirit Airlines offered a round-trip connection from $183 and JetBlue from $236.

See more FAQs

Top tips for finding cheap flights from Seattle to Falmouth

  • There is no airport in Falmouth. Instead, you’ll be flying into Boston Logan Airport when flying between Seattle and Falmouth.
  • The cheapest flight from Seattle to Falmouth was found 41 days before departure, on average.
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be June, July and August. The cheapest month to fly is January.
See more tips

Top 5 airlines serving Seattle to Falmouth

 
Need help choosing which airline to fly with from Seattle to Falmouth? 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 9197 reviews
8.2Boarding
7.3Entertainment
7.3Food
8.6Crew
7.9Comfort
Airline reviews

Offer snacks/meals for people with food sensitivities. HAVE TV SCREENS!

6.0 GoodAnonymous, May 2024SEA - IAD
Read more about Alaska Airlines reviews

Offer snacks/meals for people with food sensitivities. HAVE TV SCREENS!

Cabin crew very friendly and pleasant. Flight left late but we didn't know why. Alaska Airlines app was not user friendly -- app wouldn't let us upgrade our seats, but no indication if flight was full. We wound up having to call the airline to request an upgrade and we were told none was available. Waste of time. Baggage retrieval was easy.

The boarding gate is literally just an aisle to the concourse. There is no seating and it's shared with several other airlines. It's crowded, hot, and standing-room only. It's difficult to hear gate announcements over the PA system with too many other carriers crammed into a small space. I've enjoyed flying AA in the past on the west coast, but the BNA single gate experience is horrendous! Never again from BNA to SEA with AA.

It was a partial full flight. But even with a spare seat it was hard to get comfortable More on me being a wide body probably

Our flights using Alaska Airlines went great! All of the flight attendants were very friendly. Big shout out to the pilots for getting us to and from our destinations safely!

I can’t complain. Perhaps passing out headphones, but it was on me to bring my own since I could have used some for my personal device.

I liked only the crew. The flyght was too much fast, faster than it should be, on 20 min faster, but not safer, I experienced on myself astranautic overload from suddenly appearing in the sky and all the vibrations of the turbines, because I had my place at the level of the wings. Pregnant woman should not be seated on the level of the wings with all turbines, pregnant woman should be offered to charge place to seat closer to front or in the back, but not at the level of all the turbines. Vibrations of turbines are not healthy for pregnancy. I hold all the flight my belly in my hands to avoid miscarriage. If it would be longer flying distances, I could have miscarriage with Alaskan airlines.

I didn't have food or use entertainment, so those evaluations are invalid.

I do not feel the priority seating I paid for was was adequate for the cost. there was no difference from coach on any other airline, and it was very uncomfortable

First flights on Alaska Air, and I will go out of my way to fly them whenever I can in the future. An incredible experience, above and beyond any other airline.

The plane from SNA wouldn’t start after 5 tries. The team gave me an option of flying direct from LAX and giving me a Lyft ride there! Perfect!

Had a broken tray in business class. Crew just shrugged it off.

Everything was great except for the seat. The backrest would not stay in the upright position.

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

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

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.

Great! I love Jet Blue. My favorite airline! Very efficient, clean and timely.

We were told that our flight would be delayed for 90+ minutes because of weather, so we went to get something to eat only to have them randomly start boarding 15 minutes after the announcement, with no warning.

Entertainment... No earphones passed out. Many including me couldn't use the TV. Legroom was good. Crew was indifferent and a bit surly. Free wifi was a nice convenience. Check in desk location was unknown. Gate number on the boarding passes was wrong.

Confusing. Delay updates were out of whack At one point it said my flight was 25 hours. Three gate changes and two delays only to change back to original departure time. Gate announcer and on board flight attendant (Alejandro) making the announcements was impossible to understand due to accent and speed of speech. After beverage service the rear flight attendants sat back there on their phones. No refills no checking in, one sweep through for trash collection. Very impersonal. Bring back Coke products

Business class is great. New airplane, very comfortable, better than some of the major airlines I am used to

Delayed by almost an hour - I also noticed that all JetBlue flights departing from PBI were delayed yet the weather was perfect.

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.

I had a great flight. Everything went smoothly and the flight arrived early.

The flight and boarding were easy peasy. I was traveling with my 4-year-old, so a smooth boarding experience was especially appreciated. My only piece of feedback is really about where our gate was in O'Hare. They've shoved four gates into a tiny corner of the B terminal and there isn't early enough room or seating for everyone. Not United's problem, but did dent the overall experience.

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

There was no screens on board AND the WiFi didn’t work. My seat was broken and couldn’t recline so I couldn’t even sleep. The flight attendants didn’t offer anything to make it more comfortable. It was such an old cramped plane, when the person in front of me reclined I couldn’t even open my tray table. All the United ads talk about guaranteeing everyone gets a screen!

The Wi-Fi was unavailable on this flight for some reason.

On time take off…US cabins look tired and need of refresh!

Fantastic. Smooth boarding with an infant. Never experienced it with any other carriers.

This was a Lufthansa flight, not United. The CSA at the counter, Ashley, was not only incompetent, but quite rude. Me and two other PAX waited over 7 minutes standing in front of her and another CSA and they ignored us. We joked that we must have accidently taken invisibility pills. She could have at least said "I'll be with you in a moment, I'm currently....". I could go on about how rude she and the other CSAs were (whispering, not communicating with me, blaming the situation on others, etc.). She would not work for me. Then, she gave me literally the worst seat on the plane. the worst. My seat kept getting bumped (rammed twice by the crew with their carts and about every 5 minutes by someone using the bathroom), listening to the bathroom all night, crowded seat, etc.

My seat was broken. WiFi didn’t work. Gate crew at HOU were rude and condescending. Treated all the passengers badly. Bad experience, United.

First flight of the day… MINIMUM FUEL! 15 minute landing delay at HOU due to fog turned into a 2+ hour delay! Rather than circle, they had to divert to another city to refuel! Sat on tarmac at Austin to refuel. We ALL missed our connections! The crew, including pilots, were clueless. Crew was really a mess. At HOU, Untied employees were exceedingly rude to all. It was pitiful.

Nothing, terrible travel experience due to weather and maintenance delays and was left stranded in Austin.

My husband and I pre-ordered our food, but they did not have my husband’s order, and my cheese plate was very average. I asked for a blanket and was told they don’t carry blankets on domestic routs. The flight was on time and smooth!

28 hour delay at Fort Worth/Dallas airport, part due to weather which was unavoidable, but various other reasons - no pilot, no fa, mechanical problem, plane too small, too big, crew out of flying time, seat configuration problems.... endless and hourly updates with a different excuse. Finally told us about 3.00 am, that the flight was delayed to hours later.

Experience was bad. 3.5 hour delay for a 2.5 hour trip. There was no r Transparency about the reason for the delay and it was done 30 mins at a time.

The boarding process and flight were great. However, I waited about 40 minutes for my luggage. It did not come up on the designated belt. Instead, everyone’s bags were on a cart. Not sure what the issue was, but we were not informed until another passenger went looking for her bags and found them.

There were delays on both ends. It made it less than excellent. This plane was great though

AA1537 the AC was not working properly. It was very hot and uncomfortable.

Worst experience flying American Airlines. I fly with them often, so I was super disappointed in the service I received at gate 30 in LGA on May 24, mid-day. The flight was delayed twice. I was patiently waiting in the American Airlines lounge when I received the notice on my app that the plane was boarding 45 minutes before its newly re-scheduled take off of 4 pm (from the orginal 1:45 pm then 3:00 pm). It took me 5 min to travel from the lounge to the gate and when I arrived there at 3:20 flight gate attendant told me the flight had closed and that they announced for passengers multiple times. I showed them the notification on my app and they were really rude and unempathetic. The person who rescheduled my flight at customer service wasn't any happier but was at least helpful in getting me on the next flight.

Those seats were way too narrow. I had the middle seat, one person was a very skinny person and we still couldn’t avoid touching each other anytime one of us moved. The other person was larger and we were basically sitting in each others lap the entire flight. There was zero entertainment. The flight was long enough to justify tvs, but no. Gotta sit there in your infant seat and twiddle your thumbs.

Delayed abs delayed Gate crew giving poor info - we are definitely leaving at —- Ultimately to cancel flight after 4+ hours of delays Just cancel it earlier

Book cheap flights from Seattle to Falmouth

Recent round-trip flight deals

8/27Tue
1 stopSpirit Airlines
10h 37mSEA-BOS
8/28Wed
2 stopsSpirit Airlines
18h 04mBOS-SEA
$183
9/9Mon
2 stopsSpirit Airlines
27h 43mSEA-BOS
9/11Wed
3 stopsSpirit Airlines
17h 21mBOS-SEA
$188
9/9Mon
2 stopsSpirit Airlines
27h 43mSEA-BOS
9/11Wed
2 stopsSpirit Airlines
16h 21mBOS-SEA
$193
9/17Tue
1 stopJetBlue
10h 14mSEA-BOS
9/24Tue
nonstopJetBlue
6h 21mBOS-SEA
$236
9/11Wed
nonstopJetBlue
5h 23mSEA-BOS
9/17Tue
nonstopJetBlue
6h 21mBOS-SEA
$252
9/17Tue
nonstopAlaska Airlines
5h 15mSEA-BOS
9/21Sat
nonstopAlaska Airlines
6h 17mBOS-SEA
$262
9/17Tue
nonstopAlaska Airlines
5h 15mSEA-BOS
9/27Fri
1 stopAlaska Airlines
10h 38mBOS-SEA
$271
9/21Sat
1 stopAmerican Airlines
11h 02mSEA-BOS
9/28Sat
1 stopAmerican Airlines
11h 28mBOS-SEA
$285
10/13Sun
nonstopDelta
5h 20mSEA-BOS
10/23Wed
nonstopDelta
6h 21mBOS-SEA
$292
9/28Sat
1 stopAmerican Airlines
11h 02mSEA-BOS
10/5Sat
1 stopAmerican Airlines
9h 18mBOS-SEA
$308

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Recent one-way flight deals

9/10Tue
2 stopsSpirit Airlines
20h 43mSEA-BOS
$86
8/28Wed
2 stopsSpirit Airlines
15h 10mSEA-BOS
$89
9/3Tue
1 stopAmerican Airlines
10h 59mSEA-BOS
$122
10/15Tue
nonstopJetBlue
5h 23mSEA-BOS
$139
7/23Tue
1 stopJetBlue
10h 13mSEA-BOS
$163
6/12Wed
nonstopDelta
5h 40mSEA-BOS
$164
6/12Wed
1 stopAmerican Airlines
9h 27mSEA-BOS
$172
7/2Tue
1 stopAlaska Airlines
9h 41mSEA-BOS
$173
8/26Mon
1 stopAlaska Airlines
9h 35mSEA-BOS
$178
7/4Thu
nonstopDelta
5h 29mSEA-BOS
$179

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Last minute flights from Seattle to Falmouth

Last minute flight, train and bus deals

6/6Thu
multi-stopSpirit Airlines
23h 49mSEA-BOS
6/11Tue
multi-stopSpirit Airlines
24h 36mBOS-SEA
$334
6/4Tue
multi-stopSpirit Airlines
33h 02mSEA-BOS
6/11Tue
multi-stopSpirit Airlines
29h 47mBOS-SEA
$340
6/6Thu
nonstopAlaska Airlines
5h 24mSEA-BOS
6/22Sat
nonstopAlaska Airlines
6h 23mBOS-SEA
$387
6/6Thu
nonstopAlaska Airlines
5h 24mSEA-BOS
6/20Thu
multi-stopAlaska Airlines
10h 41mBOS-SEA
$391
6/6Thu
nonstopJetBlue
5h 29mSEA-BOS
6/13Thu
nonstopJetBlue
6h 13mBOS-SEA
$402
6/6Thu
multi-stopAmerican Airlines
9h 48mSEA-BOS
6/10Mon
multi-stopAmerican Airlines
10h 51mBOS-SEA
$416
6/6Thu
multi-stopAmerican Airlines
10h 19mSEA-BOS
6/19Wed
multi-stopAmerican Airlines
8h 42mBOS-SEA
$420
6/5Wed
multi-stopDelta
7h 10mSEA-BOS
6/18Tue
nonstopDelta
6h 17mBOS-SEA
$477
6/3Mon
multi-stopDelta
7h 10mSEA-BOS
6/11Tue
nonstopDelta
6h 15mBOS-SEA
$527
6/3Mon
nonstopJetBlue
5h 29mSEA-BOS
6/6Thu
multi-stopJetBlue
8h 27mBOS-SEA
$684

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