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Find cheap flights from San Francisco to Falmouth from $100

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Falmouth departing on 8/14. 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 7/8
Mon 7/15

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Good to know

Low season

January

High season

July

Cheapest flight

$100
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly with an average 21% increase in price.
Flight from San Francisco to Boston

When to book flights from San Francisco to Falmouth

Are your dates flexible? Find out the best times to travel from San Francisco 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 San Francisco to Falmouth

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

    When flying out of San Francisco you’ll be using San Francisco. 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 San Francisco to Falmouth take?

    Direct flights cover the 2,696 miles separating San Francisco and Falmouth in about 5h 31m.

  • How many flights are there between San Francisco and Falmouth?

    61 direct flights run between San Francisco and Falmouth on a daily basis. On average, there are about 432 departures each week.

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

    Consider leaving on a Wednesday and avoid Mondays if you are looking for the best rates. For your return to San Francisco, 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 San Francisco 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 San Francisco to Falmouth.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Falmouth from San Francisco 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 San Francisco 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 San Francisco with another airline.

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

    In the last 72 hours, the cheapest one-way ticket between San Francisco and Falmouth found on KAYAK was with JetBlue for $100. Alaska Airlines offered a round-trip connection from $199 and JetBlue from $203.

See more FAQs

Top tips for finding cheap flights from San Francisco to Falmouth

  • There is no airport in Falmouth. Instead, you’ll be flying into Boston Logan Airport when flying between San Francisco and Falmouth.
  • The cheapest flight from San Francisco to Falmouth was found 79 days before departure, on average.
  • Book at least 2 weeks before departure in order to get a below-average price.
  • High season is considered to be May, June and July. The cheapest month to fly is February.
See more tips

Top 5 airlines serving San Francisco to Falmouth

Need help choosing which airline to fly with from San Francisco 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 9236 reviews
8.6Crew
7.3Entertainment
8.2Boarding
7.9Comfort
7.3Food
Airline reviews

Flight was delayed 2 hours. It was too cold inside the cabin. My seat mate had no jacket so she was shivering the entire flight. The stewardess says there’s no available blanket.

4.0 OkayAnonymous, Jun 2024SFO - PSP
Read more about Alaska Airlines reviews

Flight was delayed 2 hours. It was too cold inside the cabin. My seat mate had no jacket so she was shivering the entire flight. The stewardess says there’s no available blanket.

The plane had to sit on the tarmac for 45 minutes once it had landed. Not Alaska’s fault.

Flight was cancelled just before we boarded. I had to stayed an extra night in SF and arrived one day late. Also I had to flight back JFK and not Newark since they didn't have flight to Newark until very late the following day. A real bad experience on this flight. It took me 2 days to get back home.

The flight was delayed by more than two hours. A notification ahead of time would be most helpful.

Plane hit turbulence diverted to Houston. We'll probably get in after 3am

Given incorrect gate upon check-in, corrected by the gate attendant, D6 rather than D5, minor inconvenience. As with the previous flight, passengers were admonished to voluntarily gate-check carry-on luggage with the statement that those in the last boarding group would have no choice but to do so. If the Boeing 737 MAX8/MAX9 doesn't have room for carry-ons it's an interior design flaw on the part of Boeing. Posting an advance warning would be helpful, such as "Boeing 737 MAX planes feature limited carry-on space. Please be aware." SFO's amenities and TSA much better than MCO's. Crew was amazing! Brought my own food because Alaska's onboard selection has soy in everything. Beverage service was excellent. This was the first and last trip with Alaska after the previous flight's issues. It's no reflection on the crew of this flight. They were great.

The flight was mostly smooth and quiet. No seatback screens.

I enjoyed the leg room at my seat, but I was in an exit row.

Boarded the plain and had to wait 1 hour for crew Captain to arrive from another flight

They canceled the flight 30 minutes prior to departure without any heads up.

You could have not cancelled the flight (AA, which I will be flying from now on) left for BOS despite the fictitious weather issues (that no one in my Boston family could see). You could have rebooked my direct flight to another direct flight instead of sending me though JFK, the worst US airport after O’Hara You could have rebooked me on a Main Cabin seat (like the one I paid for in my original ticket instead of putting me a the last row on JFK->BOS leg, pocketing the difference in ticket price But I do not really care whether you will ever do that in a future because in a future neither I nor anyone from my company (unless they pay out of pocket) nor an of my clients and partners (if they heed my advice) will ever be caught dead on any of Delta flights

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

Rated entertainment as Mediocre as there were major problems with the Infotainment system that took probably a half hour for them to fix.

Absolutely nothing flight was cancelled and delayed for 2 days. Barely a heads up I want a full refund

There was a loud squeaky sound the whole time we were flying.

I didn’t not like that I could not select my seat and ended up with the worse seat.

The landing was bad and the hostess came two times and i was sleeping but when she served the person that nexts to me I woke up and she didn’t even asked me if I need any drink or snacks two times!!!!

Plane was late because of a mechanical malfunction and the food listed as available was not. Flight attendants seem over worked and under paid. They just done seem happy. And that can be seen in their faces.

Terrible. Delta delays caused us to miss our flight and they did nothing to fix it.

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 really liked the way snacks and drinks were available throughout the flight!!! The flight attendants were also all fantastic!

Horrible, the flights kept delaying, so it is obvious that we won't be able to make it to the next connection. No easier/real agent on site to help you figure this out. UA agent on other counters refuse to assist you and direct us to use the QR code/call customer service. So inefficient and poor. While technology seems convenient, but it's not the best interest/experience for customers need help while there is active issue need assistance.

Flight was delayed due to the late arrival of the catering truck, which is quite unacceptable. There was a beverage service, but no pretzel, or cookie, or nuts were served in coach.

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

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

Awful. I got stuck next to a person carrying a dog and behind someone with a dog. People need to board these dogs downstairs. The cabin is crowded enough with your pets

Packed in like sardines, very uncomfortable. Sitting the aisle my shoulder was rammed into numerous times by rushing flight attendants. Also flight was very cold.

Airline did not explain reasons why flight was delayed two hours. Explanations were badly needed and rarely provided. Problem seemed to clearly be the airline’s fault and not the fault of the weather or airport.

Very uncomfortable seats and seat backs, and I am only 5’9”. Delayed due to crew issues, spent a long time with no ventilation. Teeny overhead bins. Wifi worked well. Arrived safely.

I was delighted that we were able to get on the 4:40 pm flight rather than our original booking at 6:55 pm!! Other than that, the flight was comfortable and landed early😊

The flight was delayed several times without explanation. The seats were terribly uncomfortable and wifi isn’t included. All these make for a less than ideal flight.

Internet service was erratic. Crew service was poor and slow. My luggage on this non-stop flight was lost and not recovered

Flight was 1/2 hour delayed leaving Phoenix. Otherwise it was an average flight. Flight crew on this trip was very nice.

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

The experience was great and much better than the flight going out. of course I was in first class but the service was excellent

Comfort of seats, ease of boarding. Food selection could be better

Food options were limited which is absolutely embarrassing for a Flight of this size The staff did not come around as much and I am not accustomed to such poor service from American Airlines Drinks I believe were limited to soda and water

Crew were attentive and friendly. Flight was smooth and early! I enjoyed the less crowded plane. Thank you!

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

We are gluten free, there were not any available complimentary gluten free options.

Book cheap flights from San Francisco to Falmouth

Recent round-trip flight deals

8/14Wed
nonstopAlaska Airlines
5h 36mSFO-BOS
8/21Wed
nonstopAlaska Airlines
6h 35mBOS-SFO
$199
8/14Wed
nonstopJetBlue
5h 41mSFO-BOS
8/19Mon
nonstopJetBlue
6h 30mBOS-SFO
$203
8/14Wed
1 stopAmerican Airlines
8h 20mSFO-BOS
8/21Wed
1 stopAmerican Airlines
8h 38mBOS-SFO
$206
8/27Tue
1 stopAmerican Airlines
10h 51mSFO-BOS
9/5Thu
1 stopAmerican Airlines
8h 27mBOS-SFO
$221
8/27Tue
1 stopUnited Airlines
9h 39mSFO-BOS
9/1Sun
nonstopUnited Airlines
6h 32mBOS-SFO
$223
8/6Tue
nonstopUnited Airlines
5h 43mSFO-BOS
8/27Tue
1 stopUnited Airlines
8h 21mBOS-SFO
$228
9/6Fri
nonstopDelta
6h 00mSFO-BOS
9/13Fri
nonstopDelta
6h 40mBOS-SFO
$237
9/18Wed
nonstopDelta
5h 48mSFO-BOS
9/20Fri
nonstopDelta
6h 40mBOS-SFO
$238
11/8Fri
1 stopSun Country Air
13h 54mSFO-BOS
11/11Mon
1 stopSun Country Air
8h 35mBOS-SFO
$329
7/11Thu
1 stopSun Country Air
20h 31mSFO-BOS
7/18Thu
1 stopSun Country Air
27h 11mBOS-SFO
$335

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Recent one-way flight deals

8/14Wed
nonstopJetBlue
5h 41mSFO-BOS
$100
8/13Tue
1 stopAmerican Airlines
8h 46mSFO-BOS
$103
7/22Mon
nonstopAlaska Airlines
5h 36mSFO-BOS
$104
7/23Tue
1 stopAlaska Airlines
17h 40mSFO-BOS
$115
9/10Tue
2 stopsUnited Airlines
10h 26mSFO-BOS
$129
7/15Mon
nonstopDelta
5h 46mSFO-BOS
$134
7/17Wed
nonstopDelta
5h 55mSFO-BOS
$159
8/13Tue
1 stopUnited Airlines
8h 03mSFO-BOS
$162
7/10Wed
1 stopSun Country Air
20h 57mSFO-BOS
$173
11/21Thu
1 stopSun Country Air
13h 14mSFO-BOS
$177

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Last minute flights from San Francisco to Falmouth

Last minute flight, train and bus deals

6/9Sun
nonstopJetBlue
5h 44mSFO-BOS
7/5Fri
nonstopJetBlue
6h 29mBOS-SFO
$345
6/10Mon
nonstopAlaska Airlines
5h 42mSFO-BOS
9/14Sat
nonstopAlaska Airlines
6h 35mBOS-SFO
$360
6/10Mon
multi-stopUnited Airlines
8h 04mSFO-BOS
9/20Fri
nonstopUnited Airlines
6h 32mBOS-SFO
$370
6/12Wed
multi-stopUnited Airlines
7h 40mSFO-BOS
7/4Thu
multi-stopUnited Airlines
8h 57mBOS-SFO
$379
6/13Thu
nonstopDelta
5h 53mSFO-BOS
9/14Sat
nonstopDelta
6h 37mBOS-SFO
$397
6/9Sun
multi-stopAmerican Airlines
8h 11mSFO-BOS
9/16Mon
multi-stopAmerican Airlines
8h 48mBOS-SFO
$399
6/13Thu
multi-stopDelta
7h 40mSFO-BOS
9/14Sat
nonstopDelta
6h 37mBOS-SFO
$407
6/11Tue
multi-stopAmerican Airlines
8h 11mSFO-BOS
7/24Wed
multi-stopAmerican Airlines
10h 12mBOS-SFO
$449
6/10Mon
multi-stopSun Country Air
7h 23mSFO-BOS
7/24Wed
multi-stopSun Country Air
9h 02mBOS-SFO
$485
6/10Mon
multi-stopSun Country Air
7h 23mSFO-BOS
7/2Tue
multi-stopSun Country Air
8h 49mBOS-SFO
$510

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Flights to Falmouth