HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Falmouth

$99+ Cheap flights from Seattle (SEA) to Falmouth, MA, MA

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BOS
Dec 28 — Jan 41
Sat 12/28
Sat 1/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Falmouth with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

The best prices from Seattle/Tacoma Intl to Falmouth are usually found in January or February, booked 38 days in advance, depart on a Wednesday or Friday and return on a Friday

Cheap flight deals from Seattle to Falmouth

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Falmouth (FM5). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 23, 2024.

Round-trip from

$191
(Alaska Airlines)

One-way from

$99
(JetBlue Airways)

Popular in

July

Cheapest in

January

Average price

$456
From Seattle/Tacoma Intl to Falmouth
Search Deals
One-way flight from Seattle/Tacoma Intl to Falmouth
Search Deals
High demand for flights, 27% potential price rise
Search Deals
Best time to find cheap flights, 3% potential price drop
Search Deals
Average for round-trip flights in December 2024
Search Deals

Find flight deals from Seattle to Falmouth

Cheapest flights from Seattle to Falmouth
Explore the most affordable flight options available from Seattle to Falmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2024.

This Delta deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/3011:35 pmSEA - BOS
Nonstop5h 27mDelta
Thu 1/97:05 pmBOS - SEA
Nonstop6h 20mDelta
Deal found 12/22$287
This Alaska Airlines deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/317:15 pmSEA - BOS
1 stop7h 18mAlaska Airlines
Fri 1/105:55 pmBOS - SEA
Nonstop6h 39mAlaska Airlines
Deal found 12/22$296
This Expedia deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/317:15 pmSEA - BOS
1 stop7h 18mMultiple Airlines
Tue 1/76:27 amBOS - SEA
2 stops20h 43mMultiple Airlines
Deal found 12/22$368
This JetBlue deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/251:50 pmSEA - BOS
Nonstop5h 07mJetBlue
Mon 1/69:16 amBOS - SEA
Nonstop6h 22mJetBlue
Deal found 12/22$382
This United Airlines deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/307:10 pmSEA - BOS
1 stop7h 47mUnited Airlines
Fri 1/109:30 amBOS - SEA
1 stop9h 46mUnited Airlines
Deal found 12/22$426
This American Airlines deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2412:31 amSEA - BOS
1 stop7h 55mAmerican Airlines
Mon 1/66:00 pmBOS - SEA
1 stop9h 57mAmerican Airlines
Deal found 12/22$488
This Southwest deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/258:25 amSEA - BOS
1 stop12h 15mSouthwest
Sun 1/57:10 pmBOS - SEA
1 stop8h 40mSouthwest
Deal found 12/22$556
This Cheapflightsfares deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2710:33 amSEA - BOS
1 stop9h 36mSun Country Air
Mon 12/3011:46 amBOS - SEA
1 stop8h 29mSun Country Air
Deal found 12/22$598
This Mytrip deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/302:16 pmSEA - BOS
3 stops26h 09mSpirit Airlines
Sun 1/58:30 pmBOS - SEA
3 stops19h 41mSpirit Airlines
Deal found 12/22$610

Find flights from Seattle to Falmouth within your budget

Customize your flight search to find flights from Seattle to Falmouth that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 23, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Sat 2/1

8:26 am-4:55 pm

Nonstop5h 29m

Boston Logan Intl

Sat 2/1

5:55 pm-9:34 pm

Nonstop6h 39m

$191

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Thu 1/9

7:30 am-3:59 pm

Nonstop5h 29m

Boston Logan Intl

Wed 1/15

7:10 am-10:45 am

Nonstop6h 35m

$197

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Thu 1/9

3:20 pm-11:30 pm

Nonstop5h 10m

Boston Logan Intl

Wed 1/15

10:45 am-2:10 pm

Nonstop6h 25m

$198

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Wed 1/15

5:55 pm-2:45 pm

2 stops17h 50m

Boston Logan Intl

Sun 1/19

5:55 pm-9:34 pm

Nonstop6h 39m

$208

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Thu 1/9

11:43 am-11:31 pm

1 stop8h 48m

Boston Logan Intl

Wed 1/15

12:16 pm-9:21 pm

1 stop12h 05m

$218

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Sat 2/1

5:00 am-5:23 pm

2 stops9h 23m

Boston Logan Intl

Tue 2/4

4:43 pm-10:53 pm

1 stop9h 10m

$241

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Wed 1/29

9:45 am-2:45 pm

2 stops26h 00m

Boston Logan Intl

Tue 2/4

7:13 am-12:19 am

2 stops20h 06m

$253

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Fri 1/10

10:00 am-11:35 pm

1 stop10h 35m

Boston Logan Intl

Sat 1/25

5:30 am-5:30 pm

2 stops15h 00m

$288

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Thu 1/9

3:15 pm-9:37 am

2 stops15h 22m

Boston Logan Intl

Wed 1/15

2:40 pm-9:18 pm

1 stop9h 38m

$330

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Tue 1/14

7:30 am-3:59 pm

Nonstop5h 29m

$99

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/23

Showing 1-10 of 18 results
1
2

Best time to book a flight from Seattle to Falmouth

Have a flexible travel schedule? Discover the best time to fly to Falmouth from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Seattle to Falmouth

Get recent, data-driven insights about flights from Seattle to Falmouth including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Seattle to Falmouth?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Falmouth. Price data was last updated on December 20, 2024.

To ensure you get the cheapest price possible for a flight from Seattle to Falmouth, you should look to book at least 38 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Seattle to Falmouth?

Currently, January is the cheapest month in which you can book a flight from Seattle to Falmouth (average of $218). Flying from Seattle to Falmouth in July is currently the most expensive (average of $311). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to FM5?

Find hourly flight availability from Seattle to Falmouth. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 23, 2024.

When flying from Seattle to Falmouth, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Seattle to Falmouth?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Falmouth. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Falmouth flight should consider departing on Wednesday at noon when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Seattle to Falmouth

Explore weekly flight availability from Seattle to Falmouth. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 23, 2024.

The most flights from SEA to FM5 are scheduled on a Sunday (27 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (11 on average).

Rainfall in Falmouth by month

Plan your trip to Falmouth by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Falmouth ranges from 3.1 - 4.0 inches per month. March is typically the wettest month, when rainfall can reach 4.0 in. July is typically the driest time to visit Falmouth when rainfall is around 3.1 in.

Temperature in Falmouth by month

Plan your trip to Falmouth by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Falmouth, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Falmouth

Get insights into the airlines that provide service to Falmouth. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Falmouth. Reviews last updated December 23, 2024.
See what other customers who have flown with Delta, JetBlue and American Airlines from Seattle to Falmouth have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,780 reviews

Entertainment

7.7

Boarding

8.2

Crew

8.7

Food

7.2

Comfort

8.1

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,780 reviews
Southwest
8.1
Very good
4,780 reviews

Entertainment

7.7

Boarding

8.2

Crew

8.7

Food

7.2

Comfort

8.1

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,549 reviews
Southwest
8.1
Very good
4,780 reviews

Entertainment

7.7

Boarding

8.2

Crew

8.7

Food

7.2

Comfort

8.1

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,588 reviews
Southwest
8.1
Very good
4,780 reviews

Entertainment

7.7

Boarding

8.2

Crew

8.7

Food

7.2

Comfort

8.1

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

JetBlue
7.4
Good
3,263 reviews
Southwest
8.1
Very good
4,780 reviews

Entertainment

7.7

Boarding

8.2

Crew

8.7

Food

7.2

Comfort

8.1

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
9,020 reviews
Southwest
8.1
Very good
4,780 reviews

Entertainment

7.7

Boarding

8.2

Crew

8.7

Food

7.2

Comfort

8.1

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Falmouth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to Falmouth?

    For a flight from Seattle to Falmouth, you will be flying from Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city. Seattle/Tacoma Intl is the only Seattle airport and it handles 20 outbound flights to Falmouth per day. 9 airlines have flights to Falmouth from Seattle/Tacoma Intl on a regular basis.

  • How popular is this Seattle to Falmouth flight route?

    The Seattle/Tacoma Intl to Falmouth flight path was viewed by 34 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines to fly from Seattle to Falmouth one-way?

    One-way options have recently been found by users for as low as $99 on JetBlue. Other airlines that offer cheap prices include Spirit Airlines from $105 and American Airlines from $108 one-way.

  • What are the most reliable airlines from Seattle to Falmouth?

    Consider KLM (100%), EL AL (100%) or LATAM Airlines (100%) when booking your flight. These represent the most reliable airlines when flying from Seattle to Falmouth.

  • What are the cheapest flights from Seattle to Falmouth?

    Looking for the cheapest flight from Seattle to Falmouth? While on average our users pay $819, our data indicates the cheapest price to be $98. The most popular route (Seattle/Tacoma Intl - Boston Logan Intl), is priced around $197.

  • Can I find deals for flights from Seattle to Falmouth that include hotel bookings?

    Yes. In addition to deals on Seattle to Falmouth flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Falmouth?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Falmouth.

  • Can I find deals for business class flights from Seattle to Falmouth?

    Yes. Cheapflights offers flight deals from Seattle to Falmouth by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Falmouth?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Falmouth (average of $218). Flying from Seattle to Falmouth in July is currently the most expensive (average of $311). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Falmouth

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Boston flights
Portland to Boston flights
Seattle to Hartford flights
Seattle to Albany flights
Portland to Hartford flights
Spokane to Boston flights
Portland to Albany flights
Seattle to West Tisbury flights
Pasco to Boston flights
Seattle to Nantucket flights
Spokane to Albany flights
Pasco to Hartford flights
Seattle to Hyannis flights
Spokane to Hartford flights
Pullman to Boston flights
Yakima to Boston flights
Portland to Provincetown flights
Bellingham to Boston flights
Walla Walla to Boston flights
Portland to West Tisbury flights
Yakima to Hartford flights
Pullman to Albany flights
Portland to Hyannis flights
Portland to New Bedford flights
Portland to Nantucket flights
Bellingham to Hartford flights
Seattle to Provincetown flights
Yakima to Albany flights

Top 8 airlines flying from Seattle to Falmouth

Discover the top 8 airlines that operate flights from Seattle to Falmouth. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 23, 2024.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$135Average$587FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$145Average$260FlexibilityNo cancel feeOn-time65%
DeltaCheapest$172Average$408FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$176Average$379FlexibilityNo cancel feeOn-time83%
Alaska AirlinesCheapest$204Average$468FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$232Average$439FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$238Average$419FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$416Average$541FlexibilityNo cancel feeOn-time63%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.