$163+ Cheap flights from San Francisco (SFO) to Falmouth, MA, MA
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BOS
Oct 6 — Oct 131
Round-trip
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 71 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday
Cheap flight deals from San Francisco to Falmouth
Cheapest
Best
Last-minute
One-way
Cheapest flights from San Francisco to FalmouthExplore 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 6, 2026.
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 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/259:00 am -
2 stops23h 59m
Wed 9/3012:54 pm -
1 stop10h 14m
Deal found 9/1![Frontier logo]()
$314
This Kiwi.com deal was found by Cheapflights users on 9/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2112:07 pm -
2 stops21h 00m
Wed 9/3012:54 pm -
1 stop10h 14m
Deal found 9/1![Frontier logo]()
$317
This Cheapflightsfares deal was found by Cheapflights users on 9/3. 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.
Wed 10/2111:44 am -
Nonstop6h 00m
Tue 10/275:05 pm -
Nonstop6h 50m
Deal found 9/3![JetBlue logo]()
$318
This Priceline deal was found by Cheapflights users on 9/1. 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.
Mon 10/1910:14 pm -
1 stop10h 38m
Wed 10/217:03 am -
1 stop12h 05m
Deal found 9/1![Multiple Airlines logo]()
$319
This Kissandfly.com deal was found by Cheapflights users on 9/3. 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.
Mon 10/2610:14 pm -
1 stop9h 03m
Sun 11/17:45 am -
Nonstop6h 40m
Deal found 9/3![Frontier logo]()
$320
This KAYAK deal was found by Cheapflights users on 9/3. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2411:44 am -
Nonstop6h 00m
Thu 12/33:45 pm -
Nonstop6h 45m
Deal found 9/3![JetBlue logo]()
$321
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Tue 10/2011:20 pm -
Nonstop5h 56m
Tue 10/278:05 am -
Nonstop6h 49m
Deal found 9/4![United Airlines logo]()
$322
This Kiwi.com deal was found by Cheapflights users on 9/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2810:05 pm -
1 stop11h 02m
Thu 10/111:17 am -
2 stops15h 57m
Deal found 9/2![Frontier logo]()
$323
This Priceline deal was found by Cheapflights users on 9/3. 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 11/610:17 pm -
1 stop9h 15m
Tue 11/103:50 pm -
Nonstop6h 45m
Deal found 9/3![Multiple Airlines logo]()
$324
This Orbitz deal was found by Cheapflights users on 9/1. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/277:08 am -
1 stop19h 39m
Tue 9/2912:52 pm -
1 stop10h 16m
Deal found 9/1![Multiple Airlines logo]()
$325
This KAYAK deal was found by Cheapflights users on 9/4. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/310:10 pm -
Nonstop5h 50m
Tue 10/69:30 pm -
Nonstop6h 29m
Deal found 9/4![JetBlue logo]()
$326
This JetBlue deal was found by Cheapflights users on 9/3. 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 9/292:39 pm -
Nonstop6h 20m
Sat 10/39:30 pm -
Nonstop6h 26m
Deal found 9/3![JetBlue logo]()
$327
Best flights from San Francisco to FalmouthDiscover carefully curated flight deals from San Francisco to Falmouth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 6, 2026.
Discover carefully curated flight deals from San Francisco to Falmouth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 6, 2026.
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Tue 12/811:20 pm -
Nonstop5h 37m
Tue 12/151:35 pm -
1 stop8h 53m
Deal found 9/4![United Airlines logo]()
$327
This Alaska Airlines deal was found by Cheapflights users on 9/4. 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.
Sat 10/316:07 am -
1 stop14h 52m
Wed 11/47:13 am -
1 stop9h 57m
Deal found 9/4![Alaska Airlines logo]()
$337
This Southwest deal was found by Cheapflights users on 9/5. 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.
Thu 11/129:25 pm -
1 stop7h 40m
Tue 11/171:20 pm -
2 stops11h 50m
Deal found 9/5![Southwest logo]()
$342
This Delta deal was found by Cheapflights users on 9/5. 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.
Sun 12/1312:59 pm -
Nonstop5h 35m
Thu 12/178:25 pm -
Nonstop6h 57m
Deal found 9/5![Delta logo]()
$363
This Alaska Airlines deal was found by Cheapflights users on 9/2. 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.
Sat 9/267:23 am -
1 stop19h 46m
Sat 10/37:51 am -
1 stop11h 25m
Deal found 9/2![Alaska Airlines logo]()
$357
This Southwest deal was found by Cheapflights users on 9/3. 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.
Thu 11/1210:40 am -
2 stops10h 10m
Sun 11/155:00 am -
1 stop8h 30m
Deal found 9/3![Southwest logo]()
$392
This Delta deal was found by Cheapflights users on 9/4. 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 9/183:00 pm -
Nonstop5h 46m
Sat 9/195:15 pm -
Nonstop6h 30m
Deal found 9/4![Delta logo]()
$397
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Tue 10/2010:45 pm -
1 stop7h 59m
Tue 10/279:00 am -
Nonstop6h 49m
Deal found 9/3![United Airlines logo]()
$399
This Alaska Airlines deal was found by Cheapflights users on 9/5. 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.
Sat 10/1011:42 am -
1 stop15h 30m
Fri 10/166:40 pm -
1 stop17h 09m
Deal found 9/5![Alaska Airlines logo]()
$387
This Delta deal was found by Cheapflights users on 9/4. 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 9/189:43 pm -
Nonstop5h 47m
Sun 9/207:35 am -
Nonstop6h 29m
Deal found 9/4![Delta logo]()
$407
This Alaska Airlines deal was found by Cheapflights users on 9/2. 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.
Sat 9/266:58 pm -
1 stop8h 11m
Tue 10/207:51 am -
1 stop10h 00m
Deal found 9/2![Alaska Airlines logo]()
$408
This Delta deal was found by Cheapflights users on 9/5. 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.
Thu 10/16:23 am -
1 stop10h 22m
Thu 10/158:51 pm -
Nonstop6h 33m
Deal found 9/5![Delta logo]()
$440
Last-minute flights from San Francisco to FalmouthDiscover last-minute flight deals from San Francisco to Falmouth. Data last updated September 6, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Falmouth. Data last updated September 6, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 9/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2112:07 pm -
2 stops21h 00m
Wed 9/3012:54 pm -
1 stop10h 14m
Deal found 9/1![Frontier logo]()
$317
This Kiwi.com deal was found by Cheapflights users on 9/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/259:00 am -
2 stops23h 59m
Wed 9/3012:54 pm -
1 stop10h 14m
Deal found 9/1![Frontier logo]()
$314
This Expedia deal was found by Cheapflights users on 9/1. 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 9/263:03 pm -
1 stop12h 06m
Wed 9/3012:54 pm -
1 stop10h 14m
Deal found 9/1![Multiple Airlines logo]()
$324
This JetBlue deal was found by Cheapflights users on 9/4. 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.
Sat 9/2610:10 pm -
Nonstop5h 50m
Wed 9/309:30 pm -
Nonstop6h 26m
Deal found 9/4![JetBlue logo]()
$327
This Orbitz deal was found by Cheapflights users on 9/1. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/277:08 am -
1 stop19h 39m
Tue 9/2912:52 pm -
1 stop10h 16m
Deal found 9/1![Multiple Airlines logo]()
$325
This KAYAK deal was found by Cheapflights users on 9/4. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/310:10 pm -
Nonstop5h 50m
Tue 10/69:30 pm -
Nonstop6h 29m
Deal found 9/4![JetBlue logo]()
$326
This Priceline deal was found by Cheapflights users on 9/1. 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.
Mon 10/1910:14 pm -
1 stop10h 38m
Wed 10/217:03 am -
1 stop12h 05m
Deal found 9/1![Multiple Airlines logo]()
$319
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Tue 10/2011:20 pm -
Nonstop5h 56m
Tue 10/278:05 am -
Nonstop6h 49m
Deal found 9/4![United Airlines logo]()
$322
This Cheapflightsfares deal was found by Cheapflights users on 9/3. 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.
Wed 10/2111:44 am -
Nonstop6h 00m
Tue 10/275:05 pm -
Nonstop6h 50m
Deal found 9/3![JetBlue logo]()
$318
This Cheapflightsfares deal was found by Cheapflights users on 9/4. 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.
Thu 10/222:37 pm -
Nonstop6h 21m
Tue 10/275:05 pm -
Nonstop6h 50m
Deal found 9/4![JetBlue logo]()
$323
This KAYAK deal was found by Cheapflights users on 9/3. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2411:44 am -
Nonstop6h 00m
Thu 12/33:45 pm -
Nonstop6h 45m
Deal found 9/3![JetBlue logo]()
$321
This Kissandfly.com deal was found by Cheapflights users on 9/3. 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.
Mon 10/2610:14 pm -
1 stop9h 03m
Sun 11/17:45 am -
Nonstop6h 40m
Deal found 9/3![Frontier logo]()
$320
One-way flights from San Francisco to FalmouthSearch for one-way flight options from San Francisco to Falmouth. Find affordable one-way fares based on user searches. Data last updated September 6, 2026.
Search for one-way flight options from San Francisco to Falmouth. Find affordable one-way fares based on user searches. Data last updated September 6, 2026.
This Southwest deal was found by Cheapflights users on 9/3. 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.
Tue 9/2911:15 am -
1 stop10h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Southwest logo]()
$163
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Sat 10/32:05 pm -
Nonstop5h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![United Airlines logo]()
$164
This Priceline deal was found by Cheapflights users on 9/2. 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.
Sun 11/110:17 pm -
1 stop10h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$165
This Super.com deal was found by Cheapflights users on 9/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3011:25 am -
Nonstop5h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![JetBlue logo]()
$166
This Cheapflightsfares deal was found by Cheapflights users on 9/2. 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.
Sat 10/31:40 pm -
Nonstop6h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![JetBlue logo]()
$167
This Southwest deal was found by Cheapflights users on 9/3. 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.
Fri 10/1610:50 pm -
1 stop14h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Southwest logo]()
$168
This Delta deal was found by Cheapflights users on 9/3. 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 10/267:00 am -
Nonstop5h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Delta logo]()
$169
This Alaska Airlines deal was found by Cheapflights users on 9/4. 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.
Sat 10/33:31 pm -
1 stop10h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Alaska Airlines logo]()
$170
This Super.com deal was found by Cheapflights users on 9/5. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/189:37 pm -
Nonstop5h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![JetBlue logo]()
$171
This KAYAK deal was found by Cheapflights users on 9/4. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/232:37 pm -
Nonstop6h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![JetBlue logo]()
$172
This KAYAK deal was found by Cheapflights users on 9/4. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/52:39 pm -
Nonstop6h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![JetBlue logo]()
$173
This Delta deal was found by Cheapflights users on 9/4. 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.
Tue 10/133:00 pm -
Nonstop5h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Delta logo]()
$174
Find 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 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $314 (Kiwi.com) |
One-way from | $163 (Southwest) |
Popular in | June |
Cheapest in | January |
Average price | $418 |
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 7,457,451 searches. Data last updated September 6, 2026.
Use the filters below to find and compare flights from San Francisco to Falmouth that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San FranciscoBoston
SFO San Francisco - BOS Boston Logan Intl
SFOBOS
San Francisco
Tue 10/6
7:00 am-3:45 pm
Nonstop5h 45m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$164
San FranciscoBoston
SFO San Francisco - BOS Boston Logan Intl
SFOBOS
San Francisco
Sun 10/11
11:20 pm-8:16 am
Nonstop5h 56m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$174
San FranciscoBoston
SFO San Francisco - BOS Boston Logan Intl
SFOBOS
San Francisco
Mon 10/12
9:54 pm-6:40 am
Nonstop5h 46m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$174
San FranciscoBoston
SFO San Francisco - BOS Boston Logan Intl
SFOBOS
San Francisco
Tue 9/22
6:00 am-5:21 pm
1 stop8h 21m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$184
San FranciscoBoston
SFO San Francisco - BOS Boston Logan Intl
SFOBOS
San Francisco
Sun 9/27
10:35 pm-9:33 am
1 stop7h 58m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$184
San FranciscoBoston
SFO San Francisco - BOS Boston Logan Intl
SFOBOS
San Francisco
Mon 10/19
12:40 pm-9:20 pm
Nonstop5h 40m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$184
San FranciscoBoston
SFO San Francisco - BOS Boston Logan Intl
SFOBOS
San Francisco
Tue 10/6
6:50 pm-8:50 am
2 stops11h 00m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$199
Quickest round-trip
San FranciscoBoston
SFO San Francisco - BOS Boston Logan Intl
SFOBOS
San Francisco
Fri 11/13
9:58 pm-6:35 am
Nonstop5h 37m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$199
San FranciscoBoston
SFO San Francisco - BOS Boston Logan Intl
SFOBOS
San Francisco
Mon 9/28
3:00 pm-11:46 pm
Nonstop5h 46m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$199
San FranciscoBoston
SFO San Francisco - BOS Boston Logan Intl
SFOBOS
San Francisco
Mon 9/28
12:30 pm-12:30 am
1 stop9h 00m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$200
Showing 1-10 of 23 resultsSorted by cheapest first
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.
SFO-BOS
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
SFO-FM5
SFO-BOS
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 6, 2026.
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 in the afternoon, which can drop the price by up to 16% versus a flight in the morning.
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 6, 2026.
The most flights from SFO to FM5 are scheduled on a Friday (49 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (15 on average).
How much does it cost to fly round-trip from San Francisco to Falmouth?
Airfare is below average for this route at the moment.
San Francisco to Falmouth flights typically cost between $345 and $535 in September.The cheapest round-trip price found within the last 5 days was $314 on Frontier (Sep 25-Sep 30).
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 August 29, 2026.
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 mornings 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 September 6, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Delta, andUnited 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.
Boarding
8.1
Entertainment
7.0
Food
7.0
Overall
7.9
Crew
8.5
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Entertainment
7.0
Food
7.0
Overall
7.9
Crew
8.5
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Entertainment
7.0
Food
7.0
Overall
7.9
Crew
8.5
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Entertainment
7.0
Food
7.0
Overall
7.9
Crew
8.5
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Entertainment
7.0
Food
7.0
Overall
7.9
Crew
8.5
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Entertainment
7.0
Food
7.0
Overall
7.9
Crew
8.5
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
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.
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
Complete your trip
Flights by cabin class
Other flight options
Other flights from San Francisco
Popular flights
Top destinations
Alternative routes for San Francisco to Falmouth
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Falmouth by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from San Francisco to Falmouth by cabin class
Find flights from San Francisco to Falmouth, based on your preferred cabin class, be it economy, premium economy, business, or first class.
San Francisco and Falmouth flights
Browse other San Francisco and Falmouth flight options. Last updated on September 6, 2026.
Other flights from San Francisco
Browse through other flights departing from San Francisco. Flights are based on user searches made on Cheapflights and were last updated on September 6, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
San Francisco to Falmouth flights
Consider these flights traveling from San Francisco to Falmouth.
Top 8 airlines flying from San Francisco to Falmouth
Discover the top 8 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 7,457,451 searches. Data last updated September 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$106 | Average$250 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$153 | Average$343 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$171 | Average$484 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$189 | Average$634 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$191 | Average$373 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$209 | Average$603 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$256 | Average$413 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$286 | Average$472 | FlexibilityNo cancel fee | On-time63% |