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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 6/4. 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
Wed 6/12
Wed 6/19

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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 10m.

  • How many flights are there between Seattle and Falmouth?

    42 direct flights run between Seattle and Falmouth on a daily basis. On average, there are about 296 departures each week.

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

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

  • 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 $219 and American Airlines from $283.

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 9144 reviews
7.9Comfort
7.3Food
8.6Crew
7.3Entertainment
8.2Boarding
Airline reviews

They canceled my flight going back to SF after I was at the airport. Wanted me to take a flight 14 hours later. Not a happy camper.

2.0 MediocreRandy, May 2024SEA - SFO
Read more about Alaska Airlines reviews

They canceled my flight going back to SF after I was at the airport. Wanted me to take a flight 14 hours later. Not a happy camper.

Service was excellent. Staff at check in cleared hurdles for me so I could travel with my service animal.

Flight cancelled an hour before takeoff due to "unscheduled maintenance". New flight makes me have to wait for 5 hours in the airport, at a gate totally on the other side of where I'm at, requiring me to take a tram to get from the N terminal, to the C terminal. After waiting for 5 hours I'm informed my new flight is no longer at the gate I'm at, but instead is back in the N terminal where I was previously.

Delayed an hour and sat without updates. Ended up an hour late to destination

The flight was decent again if there was a place that you could put crying children that would be great. Or maybe make a rule against allowing infants on the plane.

Everything was fine -- on time, clear, clean. I don't want to pay extra for in-flight wi-fi

The flight was delayed because the pilots had not arrived on their previous flight yet. The flight was 100% full so it was pretty crowded. I miss having the screens on the back of the seats. It would be great if the Alaska planes had the clip so you can put your phone or tablet on the back of the seat in front of you to not strain your neck. Everything else was very smooth.

It was fine since it ensure we went to our destination in time.

I bought the cheapest ticket. No meal, no checked luggage so I didn't expect much and was surprised by how good the flight and service was. Alaska is now my favorite airline.

No entertainment, food was cookies & juice,water, soda or coffee.

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.

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.

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

No lounge access with “United First” ticket. False alarm about late flight, jeopardizing connection. Wrong meal. Loose power socket would not hold plug, could not charge device. In-flight access to text messaging did not work. Toilet seat on plane would not stay up.

We ended up with seats in the very back. So they did not recline. Have no idea why, we reserved and checked in very early. The isles were very narrow and the seats had very little leg room. But they did give us water, and a snack.

Check in etc was very good. As for on the plane, it was like flying in a freezer. It was so cold, i have flown for years and never been so cold on a plane. Staff on board said its always cold when flying which is a load of rubbish. They wouldnt put any heating on and now i have the flu because of this .

I’ve had a couple flights this week on United that were delayed by an hour or more

Surprisingly easy! I was hesitant to try this, but the cost swayed me. I actually felt like I had less stress than all the taxiing and possible delays that occur with short regional flights where you spend less time in the air than getting to and from the plane..

This flight was delayed multiple times and eventually canceled around 2-3ish. Original take off time was around 10:30am. By 3, there were no other options out of Houston, so stuck in Houston for from 3pm - 11am the next day.

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Liked - nothing. Disliked - delayed 35+ min sitting on the plane. Caused me to miss my connection in Charlotte. American Airlines is the worst US Air Carrier company with atrocious customer service.

Worst situation ever! I booked my tickets for this trip on Alaska Airlines. I guess AA is a partner and we flew nonstop from Eugene to PHX on an AA jet. I had to pay for luggage from PHX to EUG. And this was an Alaska Airlines reservation paid for with Alaska airlines credit card! Got to the PHX airport and was not able to check bags because of some weird issue with the AA software. My reservation had to be the-entered by the agent. I will never pick another American Airlines flight on the Alaska Airlines website. While on vacation, I tried to upgrade our seats for the trip home. The request just buffered and never went through. I tried four times and was charged four times on my credit card. The card was charged but the seats were never changed. What a wreck!

Left from gate 30 minutes before flight. Never been late to a flight ever. It says 15 minutes before explicitly on the ticket.

I like the boarding process, it was fast. The seat doesn’t have a TV for a long flight and food wasn’t served, just snacks.

Use planes with TVs on flights over 4 hours. The free entertainment was a cheap in between solution for a very long flight that you don't even bother providing meals or decent snacks.

Even though we left CMI late, we mostly made up the time.

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

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.

Book cheap flights from Seattle to Falmouth

Recent round-trip flight deals

6/3Mon
2 stopsSpirit Airlines
23h 15mSEA-BOS
6/12Wed
2 stopsSpirit Airlines
26h 02mBOS-SEA
$219
9/11Wed
1 stopSpirit Airlines
10h 37mSEA-BOS
9/18Wed
1 stopSpirit Airlines
16h 21mBOS-SEA
$229
9/16Mon
1 stopAmerican Airlines
7h 47mSEA-BOS
9/18Wed
1 stopAmerican Airlines
10h 23mBOS-SEA
$283
9/9Mon
1 stopAmerican Airlines
10h 25mSEA-BOS
9/16Mon
1 stopAmerican Airlines
8h 20mBOS-SEA
$285
9/25Wed
nonstopJetBlue
5h 10mSEA-BOS
9/30Mon
1 stopJetBlue
12h 39mBOS-SEA
$341
6/13Thu
1 stopJetBlue
10h 11mSEA-BOS
6/17Mon
nonstopJetBlue
6h 13mBOS-SEA
$346
6/8Sat
nonstopDelta
5h 27mSEA-BOS
6/15Sat
nonstopDelta
6h 17mBOS-SEA
$357
6/3Mon
nonstopDelta
5h 28mSEA-BOS
6/8Sat
nonstopDelta
6h 17mBOS-SEA
$362
8/13Tue
1 stopAlaska Airlines
9h 41mSEA-BOS
9/5Thu
nonstopAlaska Airlines
6h 17mBOS-SEA
$371
8/11Sun
1 stopAlaska Airlines
20h 35mSEA-BOS
8/21Wed
nonstopAlaska Airlines
6h 14mBOS-SEA
$394

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Recent one-way flight deals

6/4Tue
2 stopsSpirit Airlines
21h 51mSEA-BOS
$86
6/11Tue
2 stopsSpirit Airlines
21h 50mSEA-BOS
$104
6/4Tue
1 stopAmerican Airlines
10h 49mSEA-BOS
$142
6/12Wed
1 stopAmerican Airlines
10h 25mSEA-BOS
$143
6/13Thu
1 stopJetBlue
10h 11mSEA-BOS
$163
10/15Tue
nonstopAlaska Airlines
5h 13mSEA-BOS
$175
6/12Wed
nonstopDelta
5h 40mSEA-BOS
$179
6/3Mon
nonstopDelta
5h 32mSEA-BOS
$180
7/30Tue
1 stopAlaska Airlines
8h 50mSEA-BOS
$188
6/9Sun
nonstopJetBlue
5h 29mSEA-BOS
$229

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Last minute flights from Seattle to Falmouth

Last minute flight, train and bus deals

5/16Thu
multi-stopJetBlue
10h 45mSEA-BOS
5/21Tue
nonstopJetBlue
6h 05mBOS-SEA
$519
5/16Thu
nonstopDelta
5h 32mSEA-BOS
5/18Sat
nonstopDelta
6h 17mBOS-SEA
$537
5/16Thu
multi-stopDelta
10h 32mSEA-BOS
5/18Sat
nonstopDelta
6h 17mBOS-SEA
$546
5/16Thu
multi-stopAmerican Airlines
8h 02mSEA-BOS
5/28Tue
multi-stopAmerican Airlines
8h 38mBOS-SEA
$553
5/18Sat
multi-stopAmerican Airlines
8h 57mSEA-BOS
5/24Fri
multi-stopAmerican Airlines
11h 52mBOS-SEA
$575
5/16Thu
multi-stopJetBlue
10h 45mSEA-BOS
5/22Wed
nonstopJetBlue
6h 05mBOS-SEA
$584
5/14Tue
multi-stopUnited Airlines
7h 38mSEA-BOS
5/21Tue
multi-stopUnited Airlines
9h 01mBOS-SEA
$601
5/18Sat
nonstopAlaska Airlines
5h 26mSEA-BOS
5/21Tue
nonstopAlaska Airlines
6h 09mBOS-SEA
$602
5/18Sat
nonstopAlaska Airlines
5h 27mSEA-BOS
5/20Mon
multi-stopAlaska Airlines
13h 15mBOS-SEA
$606
5/14Tue
multi-stopUnited Airlines
13h 23mSEA-BOS
5/21Tue
multi-stopUnited Airlines
9h 01mBOS-SEA
$611

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