HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Falmouth

$134+ 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 11/28. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BOS
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Francisco 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.

Cheapflights Tip: The best prices from San Francisco to Falmouth are usually found in January or February, booked 69 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

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 October 30, 2025.

This United Airlines deal was found by Cheapflights users on 10/30. 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.
Thu 11/2711:59 pmSFO - BOS
1 stop11h 22mUnited Airlines
Sun 12/76:00 amBOS - SFO
Nonstop6h 45mUnited Airlines
Deal found 10/30$214
This Alaska Airlines deal was found by Cheapflights users on 10/29. 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 12/97:47 pmSFO - BOS
1 stop19h 05mAlaska Airlines
Thu 12/114:24 pmBOS - SFO
1 stop10h 24mAlaska Airlines
Deal found 10/29$216
This Alaska Airlines deal was found by Cheapflights users on 10/29. 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.
Thu 12/47:00 amSFO - BOS
1 stop7h 52mAlaska Airlines
Wed 12/104:24 pmBOS - SFO
1 stop9h 24mAlaska Airlines
Deal found 10/29$217
This American Airlines deal was found by Cheapflights users on 10/30. 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 12/91:11 pmSFO - BOS
1 stop8h 02mAmerican Airlines
Tue 12/166:10 amBOS - SFO
1 stop9h 11mAmerican Airlines
Deal found 10/30$218
This JetBlue deal was found by Cheapflights users on 10/30. 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.
Tue 12/1610:41 pmSFO - BOS
1 stop9h 12mJetBlue
Sun 1/185:10 amBOS - SFO
1 stop12h 02mJetBlue
Deal found 10/30$221
This Alaska Airlines deal was found by Cheapflights users on 10/30. 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.
Mon 11/176:18 pmSFO - BOS
1 stop10h 11mAlaska Airlines
Wed 12/106:52 pmBOS - SFO
Nonstop6h 56mAlaska Airlines
Deal found 10/30$222
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Wed 11/198:25 amSFO - BOS
Nonstop5h 41mUnited Airlines
Sat 11/228:30 pmBOS - SFO
Nonstop6h 54mUnited Airlines
Deal found 10/29$223
This Trip.com deal was found by Cheapflights users on 10/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/57:00 amSFO - BOS
Nonstop5h 37mHawaiian Airlines
Mon 12/84:24 pmBOS - SFO
1 stop10h 24mHawaiian Airlines
Deal found 10/30$225
This Delta deal was found by Cheapflights users on 10/29. 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.
Fri 11/147:00 amSFO - BOS
Nonstop5h 35mDelta
Wed 1/77:45 amBOS - SFO
Nonstop7h 04mDelta
Deal found 10/29$227
This JetBlue deal was found by Cheapflights users on 10/30. 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.
Thu 11/2712:15 pmSFO - BOS
Nonstop5h 33mJetBlue
Fri 12/58:14 pmBOS - SFO
Nonstop6h 45mJetBlue
Deal found 10/30$230
This Alaska Airlines deal was found by Cheapflights users on 10/29. 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.
Thu 11/137:00 amSFO - BOS
Nonstop5h 41mAlaska Airlines
Thu 11/136:59 pmBOS - SFO
Nonstop6h 51mAlaska Airlines
Deal found 10/29$231
This Expedia deal was found by Cheapflights users on 10/30. 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.
Sat 11/159:10 pmSFO - BOS
Nonstop5h 34mJetBlue
Sun 11/167:10 amBOS - SFO
Nonstop6h 50mJetBlue
Deal found 10/30$232

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 October 30, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$214
(United Airlines)

One-way from

$134
(JetBlue)

Popular in

June

Cheapest in

January

Average price

$395
Provider with most accurate pricing for San Francisco-Boston Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Boston Logan Intl flights.
Search Deals
From San Francisco to Falmouth
Search Deals
One-way flight from San Francisco to Falmouth
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($41 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 October 30, 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

Thu 1/22

11:41 am-5:44 pm

1 stop27h 03m

Boston Logan Intl

Mon 1/26

4:20 pm-10:47 pm

1 stop9h 27m

$224

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Thu 1/29

11:05 am-7:51 pm

Nonstop5h 46m

Boston Logan Intl

Sun 2/1

6:00 am-11:49 am

1 stop8h 49m

$225

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Mon 11/17

9:48 pm-6:25 am

Nonstop5h 37m

Boston Logan Intl

Tue 11/18

8:05 pm-11:59 pm

Nonstop6h 54m

$227

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Thu 11/13

7:00 am-3:41 pm

Nonstop5h 41m

Boston Logan Intl

Thu 11/13

6:59 pm-10:50 pm

Nonstop6h 51m

$231

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Wed 12/3

7:00 am-5:52 pm

1 stop7h 52m

Boston Logan Intl

Sun 12/7

6:52 pm-10:48 pm

Nonstop6h 56m

$247

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Wed 2/25

11:35 am-11:59 pm

1 stop9h 24m

Boston Logan Intl

Wed 3/4

4:50 pm-11:40 pm

1 stop9h 50m

$256

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Tue 11/18

11:40 am-12:20 am

1 stop9h 40m

Boston Logan Intl

Wed 1/7

4:20 pm-11:01 am

1 stop21h 41m

$279

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Sat 11/15

9:22 am-8:12 pm

1 stop7h 50m

Boston Logan Intl

Sat 11/22

8:35 pm-12:22 am

Nonstop6h 47m

$295

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Thu 1/29

7:40 am-10:05 pm

2 stops11h 25m

Boston Logan Intl

Sun 2/1

6:35 am-12:15 pm

1 stop8h 40m

$298

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Mon 12/29

7:30 am-4:10 pm

Nonstop5h 40m

Boston Logan Intl

Tue 1/6

5:40 pm-9:44 pm

Nonstop7h 04m

$327

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 23 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 October 24, 2025.

Booking 69 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, February is the cheapest month in which you can book a flight from San Francisco to Falmouth (average of $119). Flying from San Francisco to Falmouth in June is currently the most expensive (average of $218). 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 October 30, 2025.

When flying from San Francisco to Falmouth, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 41% versus a flight in the morning.

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 October 26, 2025.

Travelers seeking maximum savings on their San Francisco to Falmouth flight should consider departing on Monday evenings 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.

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 October 30, 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
11,220 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Entertainment

7.0

Crew

8.5

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
11,220 reviews
Alaska Airlines
8.0
Very good
11,220 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Entertainment

7.0

Crew

8.5

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
7.9
Good
7,999 reviews
Alaska Airlines
8.0
Very good
11,220 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Entertainment

7.0

Crew

8.5

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
2,798 reviews
Alaska Airlines
8.0
Very good
11,220 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Entertainment

7.0

Crew

8.5

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
8,996 reviews
Alaska Airlines
8.0
Very good
11,220 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Entertainment

7.0

Crew

8.5

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
2,906 reviews
Alaska Airlines
8.0
Very good
11,220 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Entertainment

7.0

Crew

8.5

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 16 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, 54 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 37m. Fly via Alaska Airlines, United Airlines, or Delta to get the fastest option. There are 2696 mi between San Francisco and Falmouth. This flight may include one or multiple stops.

  • 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 $137 on JetBlue. Other airlines that offer cheap prices include United Airlines from $139 and Southwest from $153 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 (98%), Air China (94%), ANA( 87%).

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

    While on average a flight from San Francisco to Falmouth is generally $1,001, our data shows the cheapest flight currently is $119. When looking at the most popular route, (San Francisco - Boston Logan Intl), you can expect to pay $187 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, February is the cheapest month in which you can book a flight from San Francisco to Falmouth (average of $119). Flying from San Francisco to Falmouth in June is currently the most expensive (average of $218). 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 San Francisco to Falmouth

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Boston flights
San Francisco to Boston flights
San Diego to Boston flights
Ontario to Boston flights
San Jose to Boston flights
Las Vegas to Boston flights
Santa Ana to Boston flights
Los Angeles to Hartford flights
Oakland to Boston flights
San Francisco to Hartford flights
Sacramento to Boston flights
Burbank to Boston flights
San Diego to Hartford flights
Los Angeles to Albany flights
Santa Ana to Hartford flights
Ontario to Hartford flights
Long Beach to Boston flights
Reno to Boston flights
Santa Barbara to Boston flights
San Francisco to Albany flights
Sacramento to Hartford flights
Las Vegas to Hartford flights
Burbank to Hartford flights
Ontario to Albany flights
San Luis Obispo to Boston flights
San Jose to Hartford flights
Las Vegas to Albany flights
Fresno to Boston flights
Palm Springs to Boston flights
San Diego to Albany flights
Medford to Boston flights
Burbank to Albany flights
Oakland to Hartford flights
Monterey to Boston flights
Santa Ana to Albany flights
Palm Springs to Hartford flights
San Jose to Albany flights
San Luis Obispo to Hartford flights
Fresno to Albany flights
Santa Barbara to Hartford flights
Reno to Hartford flights
Long Beach to Hartford flights
Reno to Albany flights
Sacramento to Albany flights
Arcata to Boston flights
Oakland to Albany flights
Bakersfield to Boston flights
Santa Rosa to Boston flights
Los Angeles to Worcester flights
Los Angeles to Hyannis flights

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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$103Average$208FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$144Average$361FlexibilityNo cancel feeOn-time85%
Sun Country AirCheapest$160Average$348FlexibilityNo cancel feeOn-time83%
DeltaCheapest$181Average$379FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$186Average$436FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$201Average$468FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$230Average$469FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$238Average$403FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$249Average$464FlexibilityNo cancel feeOn-time71%

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.