$136+ 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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — PWM
Apr 9 — Apr 161
Round-trip
1 adult, Economy
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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 March 10, 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 March 10, 2026.
This Delta deal was found by Cheapflights users on 3/8. 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 5/55:50 am
SFO
- PWM
1 stop7h 07m
Delta
Wed 5/64:43 pm
PWM
- SFO
1 stop8h 43m
Delta
Deal found 3/8![Delta logo]()
$271
This Delta deal was found by Cheapflights users on 3/8. 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 5/55:50 am
SFO
- PWM
1 stop7h 07m
Delta
Tue 5/1212:55 pm
PWM
- SFO
2 stops12h 54m
Delta
Deal found 3/8![Delta logo]()
$276
This American Airlines deal was found by Cheapflights users on 3/10. 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 4/145:45 am
SFO
- PWM
1 stop9h 53m
American Airlines
Tue 4/216:01 pm
PWM
- SFO
1 stop8h 58m
American Airlines
Deal found 3/10![American Airlines logo]()
$291
This Delta deal was found by Cheapflights users on 3/8. 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 5/55:50 am
SFO
- PWM
1 stop7h 07m
Delta
Fri 5/86:00 am
PWM
- SFO
1 stop8h 48m
Delta
Deal found 3/8![Delta logo]()
$300
This Delta deal was found by Cheapflights users on 3/8. 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 5/55:50 am
SFO
- PWM
1 stop7h 07m
Delta
Thu 5/712:55 pm
PWM
- SFO
2 stops11h 15m
Delta
Deal found 3/8![Delta logo]()
$305
This Delta deal was found by Cheapflights users on 3/8. 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 5/411:42 pm
SFO
- PWM
2 stops13h 15m
Delta
Sat 5/912:55 pm
PWM
- SFO
2 stops11h 15m
Delta
Deal found 3/8![Delta logo]()
$310
This American Airlines deal was found by Cheapflights users on 3/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/611:52 am
SFO
- PWM
1 stop8h 35m
American Airlines
Sat 5/96:01 pm
PWM
- SFO
1 stop8h 58m
American Airlines
Deal found 3/5![American Airlines logo]()
$311
This Delta deal was found by Cheapflights users on 3/10. 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 4/146:20 pm
SFO
- PWM
2 stops14h 45m
Delta
Wed 4/224:43 pm
PWM
- SFO
1 stop8h 43m
Delta
Deal found 3/10![Delta logo]()
$315
This Delta deal was found by Cheapflights users on 3/10. 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 4/1410:55 pm
SFO
- PWM
1 stop10h 10m
Delta
Fri 4/244:43 pm
PWM
- SFO
1 stop8h 43m
Delta
Deal found 3/10![Delta logo]()
$320
This Southwest deal was found by Cheapflights users on 3/8. 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 5/67:40 am
SFO
- PWM
2 stops11h 55m
Southwest
Sat 5/95:40 am
PWM
- SFO
2 stops13h 30m
Southwest
Deal found 3/8![Southwest logo]()
$324
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 March 10, 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 March 10, 2026.
This Delta deal was found by Cheapflights users on 3/5. 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.
Sat 4/185:50 am
SFO
- PWM
1 stop7h 07m
Delta
Tue 4/2112:46 pm
PWM
- SFO
2 stops13h 24m
Delta
Deal found 3/5![Delta logo]()
$305
This Southwest deal was found by Cheapflights users on 3/5. 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.
Wed 5/67:40 am
SFO
- PWM
2 stops11h 55m
Southwest
Sat 5/95:40 am
PWM
- SFO
2 stops13h 30m
Southwest
Deal found 3/5![Southwest logo]()
$310
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Fri 8/2811:30 pm
SFO
- PWM
1 stop7h 42m
United Airlines
Sat 9/512:00 pm
PWM
- SFO
1 stop9h 24m
United Airlines
Deal found 3/9![United Airlines logo]()
$449
This Delta deal was found by Cheapflights users on 3/5. 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.
Mon 8/1012:40 am
SFO
- PWM
1 stop7h 09m
Delta
Tue 8/181:35 pm
PWM
- SFO
2 stops12h 37m
Delta
Deal found 3/5![Delta logo]()
$334
This Southwest deal was found by Cheapflights users on 3/5. 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.
Wed 5/137:40 am
SFO
- PWM
2 stops11h 55m
Southwest
Fri 5/152:50 pm
PWM
- SFO
1 stop11h 30m
Southwest
Deal found 3/5![Southwest logo]()
$348
This Delta deal was found by Cheapflights users on 3/5. 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.
Fri 5/811:41 am
SFO
- PWM
1 stop8h 28m
Delta
Mon 5/1112:55 pm
PWM
- SFO
2 stops11h 15m
Delta
Deal found 3/5![Delta logo]()
$369
This Southwest deal was found by Cheapflights users on 3/7. 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 8/19:30 pm
SFO
- PWM
1 stop13h 20m
Southwest
Tue 8/115:45 am
PWM
- SFO
1 stop8h 50m
Southwest
Deal found 3/7![Southwest logo]()
$372
This Southwest deal was found by Cheapflights users on 3/9. 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 5/110:10 am
SFO
- PWM
2 stops10h 15m
Southwest
Fri 5/82:50 pm
PWM
- SFO
2 stops12h 20m
Southwest
Deal found 3/9![Southwest logo]()
$393
This Southwest deal was found by Cheapflights users on 3/9. 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 5/39:15 pm
SFO
- PWM
1 stop13h 55m
Southwest
Sat 5/95:40 am
PWM
- SFO
1 stop11h 45m
Southwest
Deal found 3/9![Southwest logo]()
$405
This Southwest deal was found by Cheapflights users on 3/9. 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 5/1510:10 am
SFO
- PWM
2 stops10h 15m
Southwest
Mon 5/182:50 pm
PWM
- SFO
1 stop11h 30m
Southwest
Deal found 3/9![Southwest logo]()
$487
Last-minute flights from San Francisco to PortlandDiscover last-minute flight deals from San Francisco to Portland. Data last updated March 10, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Portland. Data last updated March 10, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Wed 4/16:33 am
SFO
- PWM
1 stop7h 59m
United Airlines
Wed 4/84:28 pm
PWM
- SFO
1 stop11h 11m
United Airlines
Deal found 3/6![United Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 3/8. 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 4/76:00 am
SFO
- PWM
2 stops14h 12m
Delta
Tue 4/1412:46 pm
PWM
- SFO
2 stops13h 24m
Delta
Deal found 3/8![Delta logo]()
$310
This American Airlines deal was found by Cheapflights users on 3/10. 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 4/145:45 am
SFO
- PWM
1 stop9h 53m
American Airlines
Tue 4/216:01 pm
PWM
- SFO
1 stop8h 58m
American Airlines
Deal found 3/10![American Airlines logo]()
$291
This Delta deal was found by Cheapflights users on 3/10. 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 4/146:20 pm
SFO
- PWM
2 stops14h 45m
Delta
Wed 4/224:43 pm
PWM
- SFO
1 stop8h 43m
Delta
Deal found 3/10![Delta logo]()
$315
This Delta deal was found by Cheapflights users on 3/10. 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 4/1410:55 pm
SFO
- PWM
1 stop10h 10m
Delta
Fri 4/244:43 pm
PWM
- SFO
1 stop8h 43m
Delta
Deal found 3/10![Delta logo]()
$320
This Delta deal was found by Cheapflights users on 3/10. 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 4/146:00 am
SFO
- PWM
2 stops14h 24m
Delta
Thu 4/2312:46 pm
PWM
- SFO
2 stops13h 24m
Delta
Deal found 3/10![Delta logo]()
$330
This Delta deal was found by Cheapflights users on 3/5. 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.
Sat 4/185:50 am
SFO
- PWM
1 stop7h 07m
Delta
Tue 4/2112:46 pm
PWM
- SFO
1 stop9h 17m
Delta
Deal found 3/5![Delta logo]()
$300
This Delta deal was found by Cheapflights users on 3/8. 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 4/279:35 pm
SFO
- PWM
2 stops10h 27m
Delta
Fri 5/14:43 pm
PWM
- SFO
1 stop8h 43m
Delta
Deal found 3/8![Delta logo]()
$334
This Delta deal was found by Cheapflights users on 3/8. 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 4/279:35 pm
SFO
- PWM
2 stops10h 27m
Delta
Wed 5/611:35 am
PWM
- SFO
2 stops13h 51m
Delta
Deal found 3/8![Delta logo]()
$339
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 March 10, 2026.
Search for one-way flight options from San Francisco to Portland. Find affordable one-way fares based on user searches. Data last updated March 10, 2026.
This Delta deal was found by Cheapflights users on 3/5. 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.
Tue 5/55:50 am
SFO
- PWM
1 stop7h 07m
Delta
Deal found 3/5![Delta logo]()
$136
This Southwest deal was found by Cheapflights users on 3/5. 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.
Tue 4/711:25 pm
SFO
- PWM
2 stops9h 55m
Southwest
Deal found 3/5![Southwest logo]()
$141
This American Airlines deal was found by Cheapflights users on 3/7. 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 5/1210:42 am
SFO
- PWM
1 stop10h 35m
American Airlines
Deal found 3/7![American Airlines logo]()
$156
This JetBlue deal was found by Cheapflights users on 3/10. 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 6/2911:20 pm
SFO
- PWM
1 stop11h 09m
JetBlue
Deal found 3/10![JetBlue logo]()
$163
This United Airlines deal was found by Cheapflights users on 3/10. 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 6/21:00 pm
SFO
- PWM
1 stop7h 51m
United Airlines
Deal found 3/10![United Airlines logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/56:00 am
SFO
- PWM
2 stops31h 16m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$168
This Southwest deal was found by Cheapflights users on 3/9. 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 6/27:20 am
SFO
- PWM
2 stops12h 15m
Southwest
Deal found 3/9![Southwest logo]()
$170
This Delta deal was found by Cheapflights users on 3/10. 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 8/1712:40 am
SFO
- PWM
1 stop7h 09m
Delta
Deal found 3/10![Delta logo]()
$175
This United Airlines deal was found by Cheapflights users on 3/9. 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 5/2611:59 pm
SFO
- PWM
1 stop10h 26m
United Airlines
Deal found 3/9![United Airlines logo]()
$179
This Southwest deal was found by Cheapflights users on 3/10. 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 6/1610:50 pm
SFO
- PWM
1 stop13h 15m
Southwest
Deal found 3/10![Southwest logo]()
$180
This Southwest deal was found by Cheapflights users on 3/5. 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.
Tue 3/3111:25 pm
SFO
- PWM
2 stops9h 30m
Southwest
Deal found 3/5![Southwest logo]()
$184
This American Airlines deal was found by Cheapflights users on 3/8. 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 5/255:00 am
SFO
- PWM
1 stop9h 07m
American Airlines
Deal found 3/8![American Airlines logo]()
$185
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 March 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $271 (Delta) |
One-way from | $136 (Delta) |
Popular in | December |
Cheapest in | January |
Average price | $519 |
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 March 10, 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
Sat 4/18
5:50 am-3:57 pm
1 stop7h 07m
Portland
Tue 4/21
12:46 pm-11:10 pm
2 stops13h 24m
$305
San FranciscoPortland
SFO - PWM
SFOPWM
San Francisco
Wed 5/6
7:40 am-10:35 pm
2 stops11h 55m
Portland
Sat 5/9
5:40 am-4:10 pm
2 stops13h 30m
$310
San FranciscoPortland
SFO - PWM
SFOPWM
San Francisco
Mon 8/10
12:40 am-10:49 am
1 stop7h 09m
Portland
Tue 8/18
1:35 pm-11:12 pm
2 stops12h 37m
$334
San FranciscoPortland
SFO - PWM
SFOPWM
San Francisco
Wed 5/13
7:40 am-10:35 pm
2 stops11h 55m
Portland
Fri 5/15
2:50 pm-11:20 pm
1 stop11h 30m
$348
San FranciscoPortland
SFO - PWM
SFOPWM
San Francisco
Fri 5/8
11:41 am-11:09 pm
1 stop8h 28m
Portland
Mon 5/11
12:55 pm-9:10 pm
2 stops11h 15m
$369
San FranciscoPortland
SFO - PWM
SFOPWM
San Francisco
Sat 8/1
9:30 pm-1:50 pm
1 stop13h 20m
Portland
Tue 8/11
5:45 am-11:35 am
1 stop8h 50m
$372
San FranciscoPortland
SFO - PWM
SFOPWM
San Francisco
Fri 5/1
10:10 am-11:25 pm
2 stops10h 15m
Portland
Fri 5/8
2:50 pm-12:10 am
2 stops12h 20m
$393
San FranciscoPortland
SFO - PWM
SFOPWM
San Francisco
Sun 5/3
9:15 pm-2:10 pm
1 stop13h 55m
Portland
Sat 5/9
5:40 am-2:25 pm
1 stop11h 45m
$405
Quickest round-trip
San FranciscoPortland
SFO - PWM
SFOPWM
San Francisco
Fri 8/28
11:30 pm-10:12 am
1 stop7h 42m
Portland
Sat 9/5
12:00 pm-6:24 pm
1 stop9h 24m
$449
San FranciscoPortland
SFO - PWM
SFOPWM
San Francisco
Fri 5/15
10:10 am-11:25 pm
2 stops10h 15m
Portland
Mon 5/18
2:50 pm-11:20 pm
1 stop11h 30m
$487
Showing 1-10 of 21 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 March.
| 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 Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- 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?
Use this chart to determine the optimal time to book a round-trip flight from San Francisco to Portland. Price data was last updated on March 6, 2026.
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 89 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, December is the cheapest month in which you can book a flight from San Francisco to Portland, Maine (average of $118). Flying from San Francisco to Portland, Maine 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.
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 March 10, 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
Food
7.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Food
7.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Food
7.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Food
7.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Food
7.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Food
7.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Overall
8.0
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
Auburn
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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Complete your trip
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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 March 10, 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 10, 2026.
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Check out other popular destinations found by fellow travelers in 2026
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Explore flights to Portland departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on March 10, 2026.
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 March 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$155 | Average$369 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$190 | Average$362 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$190 | Average$434 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$246 | Average$406 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$293 | Average$542 | FlexibilityNo cancel fee | On-time69% |