$145+ 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 4/17. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BOS
Apr 28 — May 51
Round-trip
1 adult, Economy
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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 September, booked 69 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 March 29, 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 March 29, 2026.
This Frontier deal was found by Cheapflights users on 3/25. 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.
Mon 4/610:03 pm
SFO
- BOS
1 stop10h 42m
Frontier
Thu 4/95:30 am
BOS
- SFO
1 stop16h 49m
Frontier
Deal found 3/25![Frontier logo]()
$260
This Orbitz deal was found by Cheapflights users on 3/24. 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.
Fri 5/293:10 pm
SFO
- BOS
Nonstop5h 48m
Multiple Airlines
Mon 6/112:01 pm
BOS
- SFO
1 stop10h 33m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$262
This CheapOair deal was found by Cheapflights users on 3/25. 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.
Tue 4/283:10 pm
SFO
- BOS
Nonstop5h 48m
Multiple Airlines
Sat 5/96:00 am
BOS
- SFO
1 stop16h 34m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$264
This Expedia deal was found by Cheapflights users on 3/28. 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.
Sun 4/1212:00 pm
SFO
- BOS
1 stop14h 53m
Multiple Airlines
Wed 4/156:00 am
BOS
- SFO
1 stop14h 34m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$265
This CheapOair deal was found by Cheapflights users on 3/27. 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 4/1810:38 pm
SFO
- BOS
1 stop9h 22m
Multiple Airlines
Mon 4/204:50 pm
BOS
- SFO
Nonstop6h 46m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$266
This CheapOair deal was found by Cheapflights users on 3/28. 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.
Sun 4/1910:38 pm
SFO
- BOS
1 stop9h 47m
Multiple Airlines
Tue 4/285:20 am
BOS
- SFO
1 stop9h 14m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$267
This Vliegwinkel deal was found by Cheapflights users on 3/26. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1610:38 pm
SFO
- BOS
1 stop10h 09m
Multiple Airlines
Thu 4/238:19 pm
BOS
- SFO
Nonstop6h 40m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$268
This Expedia deal was found by Cheapflights users on 3/27. 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.
Fri 4/108:15 pm
SFO
- BOS
Nonstop5h 42m
Multiple Airlines
Wed 4/156:00 am
BOS
- SFO
1 stop14h 34m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$269
This Expedia deal was found by Cheapflights users on 3/27. 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.
Wed 4/2210:38 pm
SFO
- BOS
1 stop9h 47m
Frontier
Mon 4/276:00 am
BOS
- SFO
1 stop14h 34m
Frontier
Deal found 3/27![Frontier logo]()
$270
This CheapTickets deal was found by Cheapflights users on 3/29. 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 CheapTickets is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/135:41 pm
SFO
- BOS
1 stop9h 03m
Multiple Airlines
Wed 5/2010:07 am
BOS
- SFO
1 stop27h 34m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$271
This Southwest deal was found by Cheapflights users on 3/26. 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 4/289:15 pm
SFO
- BOS
1 stop9h 30m
Southwest
Mon 5/42:30 pm
BOS
- SFO
1 stop11h 50m
Southwest
Deal found 3/26![Southwest logo]()
$275
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 March 29, 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 March 29, 2026.
This JetBlue deal was found by Cheapflights users on 3/24. 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.
Mon 5/48:45 pm
SFO
- BOS
Nonstop5h 42m
JetBlue
Thu 5/78:21 pm
BOS
- SFO
Nonstop6h 38m
JetBlue
Deal found 3/24![JetBlue logo]()
$297
This Southwest deal was found by Cheapflights users on 3/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1911:25 pm
SFO
- BOS
1 stop8h 30m
Southwest
Sat 4/251:50 pm
BOS
- SFO
2 stops11h 05m
Southwest
Deal found 3/29![Southwest logo]()
$322
This United Airlines deal was found by Cheapflights users on 3/27. 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 6/139:25 pm
SFO
- BOS
Nonstop5h 56m
United Airlines
Thu 6/188:20 pm
BOS
- SFO
Nonstop6h 37m
United Airlines
Deal found 3/27![United Airlines logo]()
$397
This Delta deal was found by Cheapflights users on 3/25. 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 5/211:00 pm
SFO
- BOS
Nonstop5h 50m
Delta
Sun 5/247:35 am
BOS
- SFO
Nonstop6h 42m
Delta
Deal found 3/25![Delta logo]()
$412
This JetBlue deal was found by Cheapflights users on 3/29. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/197:00 am
SFO
- BOS
Nonstop5h 37m
JetBlue
Sat 4/253:11 pm
BOS
- SFO
1 stop12h 10m
JetBlue
Deal found 3/29![JetBlue logo]()
$329
This Southwest deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/610:40 pm
SFO
- BOS
2 stops10h 30m
Southwest
Wed 5/202:25 pm
BOS
- SFO
2 stops11h 50m
Southwest
Deal found 3/26![Southwest logo]()
$343
This JetBlue deal was found by Cheapflights users on 3/27. 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 4/2810:50 pm
SFO
- BOS
1 stop8h 39m
JetBlue
Sat 5/26:20 am
BOS
- SFO
Nonstop6h 45m
JetBlue
Deal found 3/27![JetBlue logo]()
$330
This Southwest deal was found by Cheapflights users on 3/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/139:15 pm
SFO
- BOS
1 stop9h 30m
Southwest
Wed 4/2211:40 am
BOS
- SFO
2 stops11h 15m
Southwest
Deal found 3/29![Southwest logo]()
$372
This Delta deal was found by Cheapflights users on 3/26. 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 6/2312:20 pm
SFO
- BOS
Nonstop5h 42m
Delta
Tue 7/146:30 am
BOS
- SFO
1 stop13h 32m
Delta
Deal found 3/26![Delta logo]()
$414
This Delta deal was found by Cheapflights users on 3/24. 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 4/237:05 am
SFO
- BOS
Nonstop5h 34m
Delta
Fri 5/18:45 pm
BOS
- SFO
Nonstop6h 42m
Delta
Deal found 3/24![Delta logo]()
$432
This Southwest deal was found by Cheapflights users on 3/27. 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 6/1211:00 am
SFO
- BOS
1 stop9h 00m
Southwest
Tue 6/163:45 pm
BOS
- SFO
1 stop11h 25m
Southwest
Deal found 3/27![Southwest logo]()
$402
This Delta deal was found by Cheapflights users on 3/26. 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.
Wed 6/2410:35 am
SFO
- BOS
1 stop10h 43m
Delta
Tue 7/148:55 pm
BOS
- SFO
Nonstop6h 38m
Delta
Deal found 3/26![Delta logo]()
$442
Last-minute flights from San Francisco to FalmouthDiscover last-minute flight deals from San Francisco to Falmouth. Data last updated March 29, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Falmouth. Data last updated March 29, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 3/25. 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.
Mon 4/610:03 pm
SFO
- BOS
1 stop10h 42m
Frontier
Thu 4/95:30 am
BOS
- SFO
1 stop16h 49m
Frontier
Deal found 3/25![Frontier logo]()
$260
This Expedia deal was found by Cheapflights users on 3/28. 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.
Sun 4/1212:00 pm
SFO
- BOS
1 stop14h 53m
Multiple Airlines
Wed 4/156:00 am
BOS
- SFO
1 stop14h 34m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$265
This Vliegwinkel deal was found by Cheapflights users on 3/26. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1610:38 pm
SFO
- BOS
1 stop10h 09m
Multiple Airlines
Thu 4/238:19 pm
BOS
- SFO
Nonstop6h 40m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$268
This Frontier deal was found by Cheapflights users on 3/27. 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 4/1710:38 pm
SFO
- BOS
1 stop10h 09m
Frontier
Tue 4/216:00 am
BOS
- SFO
1 stop14h 34m
Frontier
Deal found 3/27![Frontier logo]()
$270
This Frontier deal was found by Cheapflights users on 3/24. 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 4/1710:38 pm
SFO
- BOS
1 stop10h 09m
Frontier
Thu 4/236:00 am
BOS
- SFO
1 stop14h 34m
Frontier
Deal found 3/24![Frontier logo]()
$271
This CheapOair deal was found by Cheapflights users on 3/27. 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 4/1810:38 pm
SFO
- BOS
1 stop9h 22m
Multiple Airlines
Mon 4/204:50 pm
BOS
- SFO
Nonstop6h 46m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$266
This Priceline deal was found by Cheapflights users on 3/25. 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 4/1810:38 pm
SFO
- BOS
1 stop9h 22m
Multiple Airlines
Sat 4/258:19 pm
BOS
- SFO
Nonstop6h 40m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$274
This Priceline deal was found by Cheapflights users on 3/24. 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 4/1910:38 pm
SFO
- BOS
1 stop9h 47m
Multiple Airlines
Sat 4/253:11 pm
BOS
- SFO
1 stop9h 46m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$262
This CheapOair deal was found by Cheapflights users on 3/28. 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.
Sun 4/1910:38 pm
SFO
- BOS
1 stop9h 47m
Multiple Airlines
Tue 4/285:20 am
BOS
- SFO
1 stop9h 14m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$267
This CheapOair deal was found by Cheapflights users on 3/24. 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.
Sun 4/1910:38 pm
SFO
- BOS
1 stop9h 47m
Multiple Airlines
Wed 4/299:00 am
BOS
- SFO
Nonstop6h 37m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$269
This CheapOair deal was found by Cheapflights users on 3/25. 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.
Tue 4/283:10 pm
SFO
- BOS
Nonstop5h 48m
Multiple Airlines
Sat 5/96:00 am
BOS
- SFO
1 stop16h 34m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$264
This Southwest deal was found by Cheapflights users on 3/26. 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 4/289:15 pm
SFO
- BOS
1 stop9h 30m
Southwest
Mon 5/42:30 pm
BOS
- SFO
1 stop11h 50m
Southwest
Deal found 3/26![Southwest logo]()
$275
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 March 29, 2026.
Search for one-way flight options from San Francisco to Falmouth. Find affordable one-way fares based on user searches. Data last updated March 29, 2026.
This Frontier deal was found by Cheapflights users on 3/25. 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 4/1710:38 pm
SFO
- BOS
1 stop10h 09m
Frontier
Deal found 3/25![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 3/26. 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.
Tue 4/146:29 pm
SFO
- BOS
2 stops14h 17m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$146
This Super.com deal was found by Cheapflights users on 3/29. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/83:20 pm
SFO
- BOS
Nonstop5h 48m
JetBlue
Deal found 3/29![JetBlue logo]()
$147
This Cheapflightsfares deal was found by Cheapflights users on 3/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/283:10 pm
SFO
- BOS
Nonstop5h 48m
JetBlue
Deal found 3/29![JetBlue logo]()
$148
This Delta deal was found by Cheapflights users on 3/26. 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 4/2810:30 pm
SFO
- BOS
Nonstop5h 55m
Delta
Deal found 3/26![Delta logo]()
$149
This Southwest deal was found by Cheapflights users on 3/27. 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.
Mon 5/119:15 pm
SFO
- BOS
1 stop8h 00m
Southwest
Deal found 3/27![Southwest logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 3/25. 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 5/1112:52 pm
SFO
- BOS
2 stops43h 14m
Frontier
Deal found 3/25![Frontier logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 3/27. 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 5/185:25 pm
SFO
- BOS
2 stops36h 47m
Frontier
Deal found 3/27![Frontier logo]()
$152
This Super.com deal was found by Cheapflights users on 3/26. 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 4/1210:23 pm
SFO
- BOS
1 stop10h 22m
Frontier
Deal found 3/26![Frontier logo]()
$153
This Alaska Airlines deal was found by Cheapflights users on 3/26. 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 6/16:58 pm
SFO
- BOS
1 stop8h 22m
Alaska Airlines
Deal found 3/26![Alaska Airlines logo]()
$154
This Southwest deal was found by Cheapflights users on 3/26. 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.
Sat 6/66:00 am
SFO
- BOS
1 stop14h 00m
Southwest
Deal found 3/26![Southwest logo]()
$156
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 March 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $260 (Frontier) |
One-way from | $145 (Frontier) |
Popular in | December |
Cheapest in | January |
Average price | $412 |
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 March 29, 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 - BOS
SFOBOS
San Francisco
Mon 5/4
8:45 pm-5:27 am
Nonstop5h 42m
Boston Logan Intl
Thu 5/7
8:21 pm-11:59 pm
Nonstop6h 38m
$297
San FranciscoBoston
SFO - BOS
SFOBOS
San Francisco
Sun 4/19
11:25 pm-10:55 am
1 stop8h 30m
Boston Logan Intl
Sat 4/25
1:50 pm-9:55 pm
2 stops11h 05m
$322
San FranciscoBoston
SFO - BOS
SFOBOS
San Francisco
Sun 4/19
7:00 am-3:37 pm
Nonstop5h 37m
Boston Logan Intl
Sat 4/25
3:11 pm-12:21 am
1 stop12h 10m
$329
San FranciscoBoston
SFO - BOS
SFOBOS
San Francisco
Tue 4/28
10:50 pm-10:29 am
1 stop8h 39m
Boston Logan Intl
Sat 5/2
6:20 am-10:05 am
Nonstop6h 45m
$330
San FranciscoBoston
SFO - BOS
SFOBOS
San Francisco
Wed 5/6
10:40 pm-12:10 pm
2 stops10h 30m
Boston Logan Intl
Wed 5/20
2:25 pm-11:15 pm
2 stops11h 50m
$343
San FranciscoBoston
SFO - BOS
SFOBOS
San Francisco
Mon 4/13
9:15 pm-9:45 am
1 stop9h 30m
Boston Logan Intl
Wed 4/22
11:40 am-7:55 pm
2 stops11h 15m
$372
San FranciscoBoston
SFO - BOS
SFOBOS
San Francisco
Sat 6/13
9:25 pm-6:21 am
Nonstop5h 56m
Boston Logan Intl
Thu 6/18
8:20 pm-11:57 pm
Nonstop6h 37m
$397
San FranciscoBoston
SFO - BOS
SFOBOS
San Francisco
Fri 6/12
11:00 am-11:00 pm
1 stop9h 00m
Boston Logan Intl
Tue 6/16
3:45 pm-12:10 am
1 stop11h 25m
$402
San FranciscoBoston
SFO - BOS
SFOBOS
San Francisco
Thu 5/21
1:00 pm-9:50 pm
Nonstop5h 50m
Boston Logan Intl
Sun 5/24
7:35 am-11:17 am
Nonstop6h 42m
$412
San FranciscoBoston
SFO - BOS
SFOBOS
San Francisco
Tue 6/23
12:20 pm-9:02 pm
Nonstop5h 42m
Boston Logan Intl
Tue 7/14
6:30 am-5:02 pm
1 stop13h 32m
$414
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
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 March 13, 2026.
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, December is the cheapest month in which you can book a flight from San Francisco to Falmouth (average of $118). Flying from San Francisco to Falmouth in January is currently the most expensive (average of $189). 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 March 29, 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 14% 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 March 28, 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. Monday 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 March 29, 2026.
The most flights from SFO to FM5 are scheduled on a Sunday (44 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (16 on average).
How much does it cost to fly round-trip from San Francisco to Falmouth?
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 March 29, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Delta, andHawaiian 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
Overall
7.9
Crew
8.5
Entertainment
7.0
Food
7.0
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Overall
7.9
Crew
8.5
Entertainment
7.0
Food
7.0
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Overall
7.9
Crew
8.5
Entertainment
7.0
Food
7.0
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Overall
7.9
Crew
8.5
Entertainment
7.0
Food
7.0
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Overall
7.9
Crew
8.5
Entertainment
7.0
Food
7.0
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Overall
7.9
Crew
8.5
Entertainment
7.0
Food
7.0
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.
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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 March 29, 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 March 29, 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 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 March 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$100 | Average$208 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$129 | Average$339 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$152 | Average$409 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$174 | Average$423 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$179 | Average$366 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$189 | Average$511 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$205 | Average$434 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$235 | Average$388 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$250 | Average$401 | FlexibilityNo cancel fee | On-time71% |