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Falmouth

$130+ Cheap flights from San Francisco (SFO) 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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BOS
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheapflights Tip: The best prices from San Francisco to Falmouth are usually found in January or February, booked 64 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from San Francisco to Falmouth

Keep the following information in mind while searching for San Francisco to Falmouth flight deals. Data was last updated September 15, 2025.

Round-trip from

$221
(Priceline)

One-way from

$130
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$348
From San Francisco to Falmouth
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One-way flight from San Francisco to Falmouth
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Highest demand for flights based on searches. 0% potential increase in price ($0 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from San Francisco to Falmouth

Cheapest flights from San Francisco to Falmouth
Explore the most affordable flight options available from San Francisco to Falmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Frontier deal was found by Cheapflights users on 9/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/710:23 pmSFO - BOS
1 stop9h 25mFrontier
Sun 11/910:04 amBOS - SFO
1 stop14h 07mFrontier
Deal found 9/13$217
This Priceline deal was found by Cheapflights users on 9/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/710:23 pmSFO - BOS
1 stop9h 25mFrontier
Mon 11/109:55 amBOS - SFO
1 stop14h 16mFrontier
Deal found 9/14$221
This CheapOair deal was found by Cheapflights users on 9/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2510:23 pmSFO - BOS
1 stop31h 32mFrontier
Sat 11/111:43 amBOS - SFO
1 stop12h 28mFrontier
Deal found 9/13$222
This Frontier deal was found by Cheapflights users on 9/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/612:43 pmSFO - BOS
2 stops16h 09mFrontier
Mon 11/1012:20 pmBOS - SFO
2 stops14h 54mFrontier
Deal found 9/13$233
This Frontier deal was found by Cheapflights users on 9/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/148:09 pmSFO - BOS
2 stops11h 39mFrontier
Sun 11/168:40 amBOS - SFO
2 stops18h 34mFrontier
Deal found 9/12$239
This Kissandfly.com deal was found by Cheapflights users on 9/15. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/256:10 amSFO - BOS
Nonstop5h 50mAlaska Airlines
Sat 9/278:23 pmBOS - SFO
Nonstop6h 29mAlaska Airlines
Deal found 9/15$247
This SmartFares deal was found by Cheapflights users on 9/13. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/127:11 amSFO - BOS
Nonstop5h 49mHawaiian Airlines
Tue 10/218:25 pmBOS - SFO
Nonstop6h 40mHawaiian Airlines
Deal found 9/13$252
This Priceline deal was found by Cheapflights users on 9/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/110:23 pmSFO - BOS
1 stop8h 37mFrontier
Thu 11/610:04 amBOS - SFO
1 stop14h 07mFrontier
Deal found 9/14$256

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco 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 September 15, 2025.
Use the filters below to find and compare flights from San Francisco to Falmouth that are best for you.

Fly from

San Francisco

Fly to

Falmouth

Route

Depart

Return

Price

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Fri 3/6

11:59 pm-8:32 am

Nonstop5h 33m

Boston Logan Intl

Mon 3/9

8:45 pm-12:34 am

Nonstop6h 49m

$279

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Sun 10/5

7:11 am-4:00 pm

Nonstop5h 49m

Boston Logan Intl

Fri 11/14

6:59 pm-10:50 pm

Nonstop6h 51m

$279

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Tue 11/11

9:47 pm-6:25 am

Nonstop5h 38m

Boston Logan Intl

Sat 11/15

7:25 am-11:23 am

Nonstop6h 58m

$279

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Tue 10/7

10:00 pm-6:39 am

Nonstop5h 39m

Boston Logan Intl

Tue 10/21

6:15 am-9:50 am

Nonstop6h 35m

$279

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Mon 10/27

7:00 am-3:42 pm

Nonstop5h 42m

Boston Logan Intl

Tue 11/4

7:55 pm-11:41 pm

Nonstop6h 46m

$279

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Mon 10/27

9:10 pm-5:44 am

Nonstop5h 34m

Boston Logan Intl

Tue 11/4

7:10 am-11:00 am

Nonstop6h 50m

$279

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Tue 11/4

12:30 pm-9:10 pm

Nonstop5h 40m

Boston Logan Intl

Wed 12/3

8:05 pm-11:58 pm

Nonstop6h 53m

$279

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Fri 12/5

7:00 am-3:37 pm

Nonstop5h 37m

Boston Logan Intl

Wed 12/10

4:24 pm-11:48 pm

1 stop10h 24m

$281

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Tue 10/14

11:30 pm-8:17 am

Nonstop5h 47m

Boston Logan Intl

Tue 10/21

7:30 am-1:10 pm

1 stop8h 40m

$289

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Fri 2/13

11:20 pm-7:58 am

Nonstop5h 38m

Boston Logan Intl

Tue 2/17

1:30 pm-7:41 pm

1 stop9h 11m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 24 results
1
2
3

Best time to book a flight from San Francisco to Falmouth

Have a flexible travel schedule? Discover the best time to fly to Falmouth from San Francisco 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.

Cheapflights Insights

Everything you need to know about your flight from San Francisco to Falmouth

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

Use this chart to determine the optimal time to book a round-trip flight from San Francisco to Falmouth. Price data was last updated on September 12, 2025.

Booking 64 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Francisco to Falmouth. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from San Francisco to Falmouth (average of $218). Flying from San Francisco 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 SFO to FM5?

Find hourly flight availability from San Francisco 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 September 15, 2025.

When flying from San Francisco 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 San Francisco to Falmouth?

Use this chart to determine the cheapest time to fly round-trip from San Francisco to Falmouth. Price data was last updated on September 14, 2025.

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

Weekly flight availability from San Francisco to Falmouth

Explore weekly flight availability from San Francisco 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 September 15, 2025.

The most flights from SFO to FM5 are scheduled on a Monday (57 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (42 on average).

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 September 15, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta, and Hawaiian Airlines from San Francisco to Falmouth by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
8.0
Very good
7,954 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Hawaiian Airlines
7.8
Good
2,723 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,929 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
JetBlue
7.2
Good
2,912 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from San Francisco 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 San Francisco to Falmouth?

    If you book a flight to Falmouth from San Francisco, you will be flying from San Francisco, which is the city’s only airport. San Francisco (SFO) is located 11.8 mi from the center of San Francisco. There are 49 flights from San Francisco to Falmouth per day from 9 different airlines.

  • How popular is this San Francisco to Falmouth flight route?

    Within the past month, 51 users have taken a look at flights from San Francisco to Falmouth.

  • How long is the flight from San Francisco to Falmouth?

    There are many flights that can get you from San Francisco to Falmouth in 5h 33m. Fly via JetBlue, Alaska Airlines, or Delta to get the fastest option. There are 2696 mi between San Francisco and Falmouth. All flights are typically nonstop.

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

    One-way options have recently been found by users for as low as $139 on Southwest. Other airlines that offer cheap prices include Delta from $140 and Alaska Airlines from $140 one-way.

  • What are the most reliable airlines from San Francisco to Falmouth?

    Before booking your flight to Falmouth from San Francisco, check out the most reliable airlines to get you to your destination on time: Etihad Airways (99%), China Eastern (92%), Scandinavian Airlines( 92%).

  • What are the cheapest flights from San Francisco to Falmouth?

    While on average a flight from San Francisco to Falmouth is generally $1,035, our data shows the cheapest flight currently is $118. When looking at the most popular route, (San Francisco - Boston Logan Intl), you can expect to pay $263 for that flight.

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

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

  • How can I find direct flights from San Francisco to Falmouth?

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

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

    Yes. Cheapflights offers flight deals from San Francisco 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 San Francisco to Falmouth?

    Currently, January is the cheapest month in which you can book a flight from San Francisco to Falmouth (average of $218). Flying from San Francisco 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

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Top 9 airlines flying from San Francisco to Falmouth

Discover the top 9 airlines that operate flights from San Francisco 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$104Average$204FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$144Average$356FlexibilityNo cancel feeOn-time85%
Sun Country AirCheapest$160Average$367FlexibilityNo cancel feeOn-time83%
DeltaCheapest$176Average$373FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$198Average$465FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$205Average$431FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$227Average$491FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$233Average$412FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$246Average$470FlexibilityNo cancel feeOn-time71%

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