$139+ Cheap flights from San Francisco to Portland, ME (SFO - PWM)
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 8/24. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — PWM
May 28 — Jun 41
Round-trip
1 adult, Economy
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Find cheap flights from San Francisco to Portland with Cheapflights
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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
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Cheapest flights from San Francisco to PortlandExplore the most affordable flight options available from San Francisco to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 28, 2026.
Explore the most affordable flight options available from San Francisco to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 28, 2026.
This American Airlines deal was found by Cheapflights users on 4/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/128:00 am
SFO
- PWM
1 stop11h 00m
American Airlines
Wed 8/197:22 am
PWM
- SFO
1 stop10h 16m
American Airlines
Deal found 4/27![American Airlines logo]()
$277
This United Airlines deal was found by Cheapflights users on 4/27. 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.
Mon 8/1710:35 pm
SFO
- PWM
1 stop8h 37m
United Airlines
Tue 8/255:15 am
PWM
- SFO
1 stop9h 05m
United Airlines
Deal found 4/27![United Airlines logo]()
$323
This American Airlines deal was found by Cheapflights users on 4/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/175:30 am
SFO
- PWM
1 stop10h 23m
American Airlines
Tue 8/258:00 am
PWM
- SFO
2 stops11h 02m
American Airlines
Deal found 4/27![American Airlines logo]()
$328
This American Airlines deal was found by Cheapflights users on 4/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/106:01 am
SFO
- PWM
1 stop9h 24m
American Airlines
Wed 6/176:54 pm
PWM
- SFO
1 stop9h 19m
American Airlines
Deal found 4/26![American Airlines logo]()
$348
This Southwest deal was found by Cheapflights users on 4/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/111:25 pm
SFO
- PWM
2 stops9h 55m
Southwest
Wed 6/33:55 pm
PWM
- SFO
1 stop8h 30m
Southwest
Deal found 4/23![Southwest logo]()
$349
This American Airlines deal was found by Cheapflights users on 4/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/187:53 pm
SFO
- PWM
2 stops11h 25m
American Airlines
Wed 5/275:36 pm
PWM
- SFO
1 stop10h 12m
American Airlines
Deal found 4/27![American Airlines logo]()
$352
This United Airlines deal was found by Cheapflights users on 4/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2310:35 pm
SFO
- PWM
1 stop8h 27m
United Airlines
Sat 8/295:15 am
PWM
- SFO
1 stop9h 05m
United Airlines
Deal found 4/25![United Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 4/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/55:50 am
SFO
- PWM
1 stop7h 17m
Delta
Fri 6/126:57 pm
PWM
- SFO
1 stop8h 48m
Delta
Deal found 4/23![Delta logo]()
$370
This Southwest deal was found by Cheapflights users on 4/27. 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 8/2811:40 pm
SFO
- PWM
2 stops12h 20m
Southwest
Wed 9/27:45 am
PWM
- SFO
1 stop8h 10m
Southwest
Deal found 4/27![Southwest logo]()
$374
Best flights from San Francisco to PortlandDiscover carefully curated flight deals from San Francisco to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 28, 2026.
Discover carefully curated flight deals from San Francisco to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 28, 2026.
This Delta deal was found by Cheapflights users on 4/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1012:40 am
SFO
- PWM
1 stop7h 09m
Delta
Sat 9/126:00 am
PWM
- SFO
2 stops15h 48m
Delta
Deal found 4/27![Delta logo]()
$370
This Southwest deal was found by Cheapflights users on 4/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/29:40 pm
SFO
- PWM
1 stop9h 15m
Southwest
Mon 10/512:45 pm
PWM
- SFO
2 stops14h 45m
Southwest
Deal found 4/24![Southwest logo]()
$428
This United Airlines deal was found by Cheapflights users on 4/27. 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.
Tue 5/266:05 am
SFO
- PWM
1 stop8h 39m
United Airlines
Tue 6/24:51 pm
PWM
- SFO
1 stop10h 39m
United Airlines
Deal found 4/27![United Airlines logo]()
$528
This Delta deal was found by Cheapflights users on 4/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/96:00 am
SFO
- PWM
1 stop8h 52m
Delta
Sat 9/126:00 am
PWM
- SFO
1 stop8h 45m
Delta
Deal found 4/27![Delta logo]()
$438
This Southwest deal was found by Cheapflights users on 4/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/35:40 pm
SFO
- PWM
2 stops13h 15m
Southwest
Fri 8/72:10 pm
PWM
- SFO
1 stop10h 45m
Southwest
Deal found 4/23![Southwest logo]()
$467
This Southwest deal was found by Cheapflights users on 4/26. 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 6/108:55 am
SFO
- PWM
2 stops11h 00m
Southwest
Wed 6/177:30 am
PWM
- SFO
1 stop8h 05m
Southwest
Deal found 4/26![Southwest logo]()
$479
This Delta deal was found by Cheapflights users on 4/24. 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.
Fri 6/55:50 am
SFO
- PWM
1 stop7h 17m
Delta
Fri 6/1211:48 am
PWM
- SFO
1 stop8h 27m
Delta
Deal found 4/24![Delta logo]()
$488
This Southwest deal was found by Cheapflights users on 4/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/75:30 am
SFO
- PWM
2 stops13h 00m
Southwest
Tue 7/143:45 pm
PWM
- SFO
2 stops10h 30m
Southwest
Deal found 4/23![Southwest logo]()
$487
This Southwest deal was found by Cheapflights users on 4/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:40 pm
SFO
- PWM
1 stop9h 15m
Southwest
Sun 10/45:50 am
PWM
- SFO
1 stop11h 30m
Southwest
Deal found 4/23![Southwest logo]()
$497
This Delta deal was found by Cheapflights users on 4/25. 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.
Sun 7/2612:35 am
SFO
- PWM
1 stop7h 07m
Delta
Sun 8/26:00 am
PWM
- SFO
1 stop8h 33m
Delta
Deal found 4/25![Delta logo]()
$564
This Southwest deal was found by Cheapflights users on 4/26. 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.
Thu 6/119:25 am
SFO
- PWM
2 stops11h 40m
Southwest
Mon 6/155:35 am
PWM
- SFO
1 stop14h 55m
Southwest
Deal found 4/26![Southwest logo]()
$555
This Southwest deal was found by Cheapflights users on 4/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/610:30 pm
SFO
- PWM
1 stop8h 20m
Southwest
Mon 8/105:55 am
PWM
- SFO
2 stops11h 45m
Southwest
Deal found 4/25![Southwest logo]()
$563
Last-minute flights from San Francisco to PortlandDiscover last-minute flight deals from San Francisco to Portland. Data last updated April 28, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Portland. Data last updated April 28, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 4/24. 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.
Sat 5/1611:59 pm
SFO
- PWM
1 stop10h 11m
Delta
Sat 8/226:00 am
PWM
- SFO
1 stop10h 21m
Delta
Deal found 4/24![Delta logo]()
$438
This American Airlines deal was found by Cheapflights users on 4/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/187:53 pm
SFO
- PWM
2 stops11h 25m
American Airlines
Wed 5/275:36 pm
PWM
- SFO
1 stop10h 12m
American Airlines
Deal found 4/27![American Airlines logo]()
$352
This American Airlines deal was found by Cheapflights users on 4/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/189:30 am
SFO
- PWM
1 stop10h 56m
American Airlines
Thu 5/283:03 pm
PWM
- SFO
1 stop11h 00m
American Airlines
Deal found 4/27![American Airlines logo]()
$393
This American Airlines deal was found by Cheapflights users on 4/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/237:44 am
SFO
- PWM
1 stop11h 02m
American Airlines
Sat 5/305:25 am
PWM
- SFO
1 stop9h 52m
American Airlines
Deal found 4/26![American Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 4/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2311:14 pm
SFO
- PWM
2 stops10h 03m
American Airlines
Wed 5/275:36 pm
PWM
- SFO
1 stop10h 12m
American Airlines
Deal found 4/26![American Airlines logo]()
$388
This United Airlines deal was found by Cheapflights users on 4/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/246:05 am
SFO
- PWM
1 stop8h 39m
United Airlines
Tue 6/27:16 pm
PWM
- SFO
1 stop8h 59m
United Airlines
Deal found 4/25![United Airlines logo]()
$323
This American Airlines deal was found by Cheapflights users on 4/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/315:00 am
SFO
- PWM
1 stop9h 07m
American Airlines
Fri 6/52:24 pm
PWM
- SFO
1 stop11h 25m
American Airlines
Deal found 4/26![American Airlines logo]()
$417
One-way flights from San Francisco to PortlandSearch for one-way flight options from San Francisco to Portland. Find affordable one-way fares based on user searches. Data last updated April 28, 2026.
Search for one-way flight options from San Francisco to Portland. Find affordable one-way fares based on user searches. Data last updated April 28, 2026.
This Delta deal was found by Cheapflights users on 4/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2412:40 am
SFO
- PWM
1 stop7h 09m
Delta
Deal found 4/27![Delta logo]()
$139
This Delta deal was found by Cheapflights users on 4/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1311:41 am
SFO
- PWM
1 stop8h 31m
Delta
Deal found 4/23![Delta logo]()
$145
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2510:50 pm
SFO
- PWM
2 stops10h 50m
American Airlines
Deal found 4/28![American Airlines logo]()
$164
This Southwest deal was found by Cheapflights users on 4/27. 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.
Tue 9/157:55 pm
SFO
- PWM
2 stops11h 00m
Southwest
Deal found 4/27![Southwest logo]()
$175
This Southwest deal was found by Cheapflights users on 4/27. 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.
Tue 8/410:30 pm
SFO
- PWM
1 stop8h 25m
Southwest
Deal found 4/27![Southwest logo]()
$185
This Southwest deal was found by Cheapflights users on 4/26. 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 7/285:10 am
SFO
- PWM
1 stop13h 20m
Southwest
Deal found 4/26![Southwest logo]()
$190
This United Airlines deal was found by Cheapflights users on 4/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/199:15 pm
SFO
- PWM
1 stop8h 34m
United Airlines
Deal found 4/25![United Airlines logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 4/26. 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.
Sat 5/2312:52 pm
SFO
- PWM
3 stops27h 24m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$196
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/26:00 am
SFO
- PWM
2 stops31h 16m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$197
This American Airlines deal was found by Cheapflights users on 4/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/194:15 pm
SFO
- PWM
2 stops15h 03m
American Airlines
Deal found 4/25![American Airlines logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 4/25. 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 5/189:56 pm
SFO
- PWM
2 stops39h 20m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$205
This American Airlines deal was found by Cheapflights users on 4/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/307:44 am
SFO
- PWM
1 stop11h 02m
American Airlines
Deal found 4/27![American Airlines logo]()
$209
Find flight deals from San Francisco to Portland
Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Portland (PWM). 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 April 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $277 (American Airlines) |
One-way from | $139 (Delta) |
Popular in | December |
Cheapest in | January |
Average price | $579 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Francisco to Portland 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 April 28, 2026.
Use the filters below to find and compare flights from San Francisco to Portland that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San FranciscoPortland
SFO - PWM
SFOPWM
San Francisco
Mon 8/10
12:40 am-10:49 am
1 stop7h 09m
Portland
Sat 9/12
6:00 am-6:48 pm
2 stops15h 48m
$370
San FranciscoPortland
SFO - PWM
SFOPWM
San Francisco
Fri 10/2
9:40 pm-9:55 am
1 stop9h 15m
Portland
Mon 10/5
12:45 pm-12:30 am
2 stops14h 45m
$428
San FranciscoPortland
SFO - PWM
SFOPWM
San Francisco
Sun 8/9
6:00 am-5:52 pm
1 stop8h 52m
Portland
Sat 9/12
6:00 am-11:45 am
1 stop8h 45m
$438
San FranciscoPortland
SFO - PWM
SFOPWM
San Francisco
Mon 8/3
5:40 pm-9:55 am
2 stops13h 15m
Portland
Fri 8/7
2:10 pm-9:55 pm
1 stop10h 45m
$467
San FranciscoPortland
SFO - PWM
SFOPWM
San Francisco
Wed 6/10
8:55 am-10:55 pm
2 stops11h 00m
Portland
Wed 6/17
7:30 am-12:35 pm
1 stop8h 05m
$479
San FranciscoPortland
SFO - PWM
SFOPWM
San Francisco
Tue 7/7
5:30 am-9:30 pm
2 stops13h 00m
Portland
Tue 7/14
3:45 pm-11:15 pm
2 stops10h 30m
$487
San FranciscoPortland
SFO - PWM
SFOPWM
San Francisco
Fri 6/5
5:50 am-4:07 pm
1 stop7h 17m
Portland
Fri 6/12
11:48 am-5:15 pm
1 stop8h 27m
$488
San FranciscoPortland
SFO - PWM
SFOPWM
San Francisco
Thu 10/1
9:40 pm-9:55 am
1 stop9h 15m
Portland
Sun 10/4
5:50 am-2:20 pm
1 stop11h 30m
$497
San FranciscoPortland
SFO - PWM
SFOPWM
San Francisco
Tue 5/26
6:05 am-5:44 pm
1 stop8h 39m
Portland
Tue 6/2
4:51 pm-12:30 am
1 stop10h 39m
$528
San FranciscoPortland
SFO - PWM
SFOPWM
San Francisco
Thu 6/11
9:25 am-12:05 am
2 stops11h 40m
Portland
Mon 6/15
5:35 am-5:30 pm
1 stop14h 55m
$555
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from San Francisco to Portland
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to Portland in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San Francisco-Portland, Maine flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-Portland, Maine flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-Portland, Maine flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Francisco-Portland, Maine flights, Cheapflights users trust FlightHub the most. FlightHub 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-Portland, Maine 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 Portland
Have a flexible travel schedule? Discover the best time to fly to Portland from San Francisco with our price prediction graph.
SFO-PWM
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 Portland
How far ahead should I book a flight from San Francisco to Portland, Maine?
The price you pay for your flight from San Francisco to Portland, Maine may vary depending on when you book. For the best chance of a lower fare, look to book 84 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from San Francisco to Portland, Maine?
Currently, January is the cheapest month in which you can book a flight from San Francisco to Portland, Maine (average of $334). Flying from San Francisco to Portland, Maine in December is currently the most expensive (average of $786). 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.
How much does it cost to fly round-trip from San Francisco to Portland, Maine?
Reviews of airlines servicing Portland
Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated April 28, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from San Francisco to Portland have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Related info for your journey
Find useful and relevant information for your journey from San Francisco to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Portland?
Book flights to Portland if you plan to visit one of these locationsNorth Conway
Brunswick
Lewiston
Conway
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for San Francisco to Portland
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Find flights from San Francisco to Portland, based on your preferred cabin class, be it economy, premium economy, business, or first class.
San Francisco and Portland flights
Browse other San Francisco and Portland flight options. Last updated on April 28, 2026.
Other flights from San Francisco
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Other flights to Portland
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Top 5 airlines flying from San Francisco to Portland
Discover the top 5 airlines that operate flights from San Francisco to Portland. 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 April 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$155 | Average$354 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$190 | Average$436 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$250 | Average$456 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$291 | Average$346 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$310 | Average$541 | FlexibilityNo cancel fee | On-time69% |