$164+ Cheap flights from San Francisco to Portsmouth, NH (SFO - PSM)
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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — PSM
Nov 24 — Dec 11
Round-trip
1 adult, Economy
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Find cheap flights from San Francisco to Portsmouth 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.Cheap flight deals from San Francisco to Portsmouth
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Best
Last-minute
One-way
Cheapest flights from San Francisco to PortsmouthExplore the most affordable flight options available from San Francisco to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.
Explore the most affordable flight options available from San Francisco to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.
This KAYAK deal was found by Cheapflights users on 10/24. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1111:54 am -
2 stops51h 13m
Sun 1/106:47 pm -
3 stops25h 03m
Deal found 10/24![Breeze Airways logo]()
$988
This KAYAK deal was found by Cheapflights users on 10/24. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1111:54 am -
2 stops51h 13m
Thu 1/146:47 pm -
3 stops25h 03m
Deal found 10/24![Breeze Airways logo]()
$1,018
This KAYAK deal was found by Cheapflights users on 10/24. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1012:46 pm -
3 stops41h 56m
Sun 1/106:47 pm -
3 stops25h 03m
Deal found 10/24![Breeze Airways logo]()
$1,023
This KAYAK deal was found by Cheapflights users on 10/24. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1012:46 pm -
3 stops41h 56m
Thu 1/146:47 pm -
3 stops25h 03m
Deal found 10/24![Breeze Airways logo]()
$1,053
This KAYAK deal was found by Cheapflights users on 10/24. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1111:54 am -
2 stops51h 13m
Sun 1/36:47 pm -
3 stops25h 03m
Deal found 10/24![Breeze Airways logo]()
$1,303
This KAYAK deal was found by Cheapflights users on 10/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1712:46 pm -
3 stops52h 11m
Tue 12/229:42 am -
3 stops53h 19m
Deal found 10/25![Breeze Airways logo]()
$1,318
This KAYAK deal was found by Cheapflights users on 10/24. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1012:46 pm -
3 stops41h 56m
Sun 1/36:47 pm -
3 stops25h 03m
Deal found 10/24![Breeze Airways logo]()
$1,338
This KAYAK deal was found by Cheapflights users on 10/24. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/305:30 pm -
3 stops23h 27m
Sun 11/16:47 pm -
3 stops25h 03m
Deal found 10/24![Breeze Airways logo]()
$1,418
This KAYAK deal was found by Cheapflights users on 10/24. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2912:46 pm -
3 stops52h 11m
Sun 11/16:47 pm -
3 stops25h 03m
Deal found 10/24![Breeze Airways logo]()
$1,448
Best flights from San Francisco to PortsmouthDiscover carefully curated flight deals from San Francisco to Portsmouth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
Discover carefully curated flight deals from San Francisco to Portsmouth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
This KAYAK deal was found by Cheapflights users on 10/24. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1111:54 am -
2 stops51h 13m
Sun 1/106:47 pm -
3 stops25h 03m
Deal found 10/24![Breeze Airways logo]()
$988
This KAYAK deal was found by Cheapflights users on 10/24. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1111:54 am -
2 stops51h 13m
Thu 1/146:47 pm -
3 stops25h 03m
Deal found 10/24![Breeze Airways logo]()
$1,018
This KAYAK deal was found by Cheapflights users on 10/24. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1012:46 pm -
3 stops41h 56m
Sun 1/106:47 pm -
3 stops25h 03m
Deal found 10/24![Breeze Airways logo]()
$1,023
This KAYAK deal was found by Cheapflights users on 10/24. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1111:54 am -
2 stops51h 13m
Sun 1/36:47 pm -
3 stops25h 03m
Deal found 10/24![Breeze Airways logo]()
$1,303
This KAYAK deal was found by Cheapflights users on 10/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1712:46 pm -
3 stops52h 11m
Tue 12/229:42 am -
3 stops53h 19m
Deal found 10/25![Breeze Airways logo]()
$1,318
This KAYAK deal was found by Cheapflights users on 10/23. 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 12/255:30 pm -
3 stops23h 27m
Sat 1/28:37 pm -
3 stops41h 32m
Deal found 10/23![Breeze Airways logo]()
$1,908
This KAYAK deal was found by Cheapflights users on 10/23. 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 12/2511:54 am -
2 stops18h 48m
Sun 1/36:47 pm -
3 stops25h 03m
Deal found 10/23![Breeze Airways logo]()
$1,933
This KAYAK deal was found by Cheapflights users on 10/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/185:30 pm -
3 stops23h 27m
Thu 12/246:47 pm -
3 stops25h 03m
Deal found 10/25![Breeze Airways logo]()
$1,958
This KAYAK deal was found by Cheapflights users on 10/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/185:30 pm -
3 stops23h 27m
Tue 12/229:42 am -
3 stops53h 19m
Deal found 10/25![Breeze Airways logo]()
$1,973
Last-minute flights from San Francisco to PortsmouthDiscover last-minute flight deals from San Francisco to Portsmouth. Data last updated October 25, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Portsmouth. Data last updated October 25, 2026 and is based on user searches.
This KAYAK deal was found by Cheapflights users on 10/20. 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.
Thu 10/2212:46 pm -
3 stops52h 11m
Sun 10/256:47 pm -
3 stops25h 03m
Deal found 10/20![Breeze Airways logo]()
$2,203
This KAYAK deal was found by Cheapflights users on 10/20. 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 10/235:30 pm -
3 stops23h 27m
Sun 10/256:47 pm -
3 stops25h 03m
Deal found 10/20![Breeze Airways logo]()
$1,923
This KAYAK deal was found by Cheapflights users on 10/24. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2912:46 pm -
3 stops52h 11m
Sun 11/16:47 pm -
3 stops25h 03m
Deal found 10/24![Breeze Airways logo]()
$1,448
This KAYAK deal was found by Cheapflights users on 10/24. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/305:30 pm -
3 stops23h 27m
Sun 11/16:47 pm -
3 stops25h 03m
Deal found 10/24![Breeze Airways logo]()
$1,418
This KAYAK deal was found by Cheapflights users on 10/21. 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.
Thu 11/2612:46 pm -
3 stops52h 11m
Sun 11/296:47 pm -
3 stops25h 03m
Deal found 10/21![Breeze Airways logo]()
$2,753
One-way flights from San Francisco to PortsmouthSearch for one-way flight options from San Francisco to Portsmouth. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
Search for one-way flight options from San Francisco to Portsmouth. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/25. 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.
Tue 1/126:30 pm -
3 stops45h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$164
This Kiwi.com deal was found by Cheapflights users on 10/25. 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.
Wed 1/64:21 pm -
2 stops22h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 10/25. 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.
Fri 1/89:10 pm -
3 stops41h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$212
This Kiwi.com deal was found by Cheapflights users on 10/25. 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.
Sat 1/99:10 pm -
3 stops17h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 10/25. 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.
Thu 1/77:00 pm -
3 stops45h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 10/25. 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 1/116:00 am -
3 stops48h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$252
This Kiwi.com deal was found by Cheapflights users on 10/25. 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.
Sun 1/1011:25 am -
3 stops27h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$380
Find flight deals from San Francisco to Portsmouth
Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Portsmouth (PSM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 25, 2026.
Most accurate provider | Expedia 1 star |
|---|---|
Most trusted provider | Expedia 3 stars |
Round-trip from | $988 (KAYAK) |
One-way from | $164 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $485 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Francisco to Portsmouth 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 October 25, 2026.
Use the filters below to find and compare flights from San Francisco to Portsmouth that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San FranciscoPortsmouth
SFO San Francisco - PSM Portsmouth Pease Intl
SFOPSM
San Francisco
Tue 1/12
6:30 pm-6:31 pm
3 stops45h 01m
Portsmouth Pease Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$164
Quickest round-trip
San FranciscoPortsmouth
SFO San Francisco - PSM Portsmouth Pease Intl
SFOPSM
San Francisco
Wed 1/6
4:21 pm-6:01 pm
2 stops22h 40m
Portsmouth Pease Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$182
San FranciscoPortsmouth
SFO San Francisco - PSM Portsmouth Pease Intl
SFOPSM
San Francisco
Fri 1/8
9:10 pm-6:07 pm
3 stops41h 57m
Portsmouth Pease Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$212
San FranciscoPortsmouth
SFO San Francisco - PSM Portsmouth Pease Intl
SFOPSM
San Francisco
Mon 1/11
6:00 am-9:42 am
3 stops48h 42m
Portsmouth Pease Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$252
San FranciscoPortsmouth
SFO San Francisco - PSM Portsmouth Pease Intl
SFOPSM
San Francisco
Fri 12/11
11:54 am-6:07 pm
2 stops51h 13m
Portsmouth Pease Intl
Sun 1/10
6:47 pm-4:50 pm
3 stops25h 03m
$988
San FranciscoPortsmouth
SFO San Francisco - PSM Portsmouth Pease Intl
SFOPSM
San Francisco
Fri 12/11
11:54 am-6:07 pm
2 stops51h 13m
Portsmouth Pease Intl
Thu 1/14
6:47 pm-4:50 pm
3 stops25h 03m
$1,018
San FranciscoPortsmouth
SFO San Francisco - PSM Portsmouth Pease Intl
SFOPSM
San Francisco
Thu 12/10
12:46 pm-9:42 am
3 stops41h 56m
Portsmouth Pease Intl
Sun 1/10
6:47 pm-4:50 pm
3 stops25h 03m
$1,023
San FranciscoPortsmouth
SFO San Francisco - PSM Portsmouth Pease Intl
SFOPSM
San Francisco
Fri 12/11
11:54 am-6:07 pm
2 stops51h 13m
Portsmouth Pease Intl
Sun 1/3
6:47 pm-4:50 pm
3 stops25h 03m
$1,303
San FranciscoPortsmouth
SFO San Francisco - PSM Portsmouth Pease Intl
SFOPSM
San Francisco
Thu 12/17
12:46 pm-7:57 pm
3 stops52h 11m
Portsmouth Pease Intl
Tue 12/22
9:42 am-12:01 pm
3 stops53h 19m
$1,318
San FranciscoPortsmouth
SFO San Francisco - PSM Portsmouth Pease Intl
SFOPSM
San Francisco
Fri 12/25
5:30 pm-7:57 pm
3 stops23h 27m
Portsmouth Pease Intl
Sat 1/2
8:37 pm-11:09 am
3 stops41h 32m
$1,908
Showing 1-10 of 13 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on San Francisco-Portsmouth, New Hampshire flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on San Francisco-Portsmouth, New Hampshire flight deals on Cheapflights vs. Expedia <90% of the time. Price accuracy is based on data collected from San Francisco-Portsmouth, New Hampshire flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Francisco-Portsmouth, New Hampshire flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-Portsmouth, New Hampshire flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from San Francisco to Portsmouth
Have a flexible travel schedule? Discover the best time to fly to Portsmouth from San Francisco with our price prediction graph.
SFO-PSM
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.
Related info for your journey
Find useful and relevant information for your journey from San Francisco to Portsmouth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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