$126+ 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 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — PWM
Apr 5 — Apr 121
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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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 Portland
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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 6, 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 6, 2026.
This Delta deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/185:50 am
SFO
- PWM
1 stop7h 07m
Delta
Wed 4/224:43 pm
PWM
- SFO
1 stop8h 43m
Delta
Deal found 3/4![Delta logo]()
$271
This Delta deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/185:50 am
SFO
- PWM
1 stop7h 07m
Delta
Sat 4/256:30 am
PWM
- SFO
2 stops16h 54m
Delta
Deal found 3/4![Delta logo]()
$276
This Southwest deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/67:40 am
SFO
- PWM
2 stops11h 55m
Southwest
Sat 5/95:40 am
PWM
- SFO
1 stop11h 45m
Southwest
Deal found 3/3![Southwest logo]()
$295
This Delta deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/185:50 am
SFO
- PWM
1 stop7h 07m
Delta
Fri 4/244:43 pm
PWM
- SFO
1 stop8h 43m
Delta
Deal found 3/4![Delta logo]()
$300
This JetBlue deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/188:00 am
SFO
- PWM
1 stop12h 59m
JetBlue
Sat 4/257:30 am
PWM
- SFO
1 stop9h 51m
JetBlue
Deal found 3/1![JetBlue logo]()
$304
This United Airlines deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2711:05 pm
SFO
- PWM
1 stop8h 02m
United Airlines
Tue 6/25:15 am
PWM
- SFO
1 stop9h 05m
United Airlines
Deal found 3/2![United Airlines logo]()
$309
This Delta deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/209:35 pm
SFO
- PWM
2 stops13h 36m
Delta
Sat 4/256:30 am
PWM
- SFO
2 stops16h 54m
Delta
Deal found 3/4![Delta logo]()
$310
This American Airlines deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 3/3![American Airlines logo]()
$311
This Delta deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:50 am
SFO
- PWM
1 stop7h 07m
Delta
Tue 5/122:05 pm
PWM
- SFO
1 stop11h 43m
Delta
Deal found 3/4![Delta logo]()
$314
This Delta deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/217:25 am
SFO
- PWM
1 stop14h 21m
Delta
Sat 4/251:12 pm
PWM
- SFO
1 stop10h 12m
Delta
Deal found 3/4![Delta logo]()
$318
This Southwest deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/49:15 pm
SFO
- PWM
1 stop12h 05m
Southwest
Sat 5/95:40 am
PWM
- SFO
1 stop11h 45m
Southwest
Deal found 3/4![Southwest logo]()
$319
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 6, 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 6, 2026.
This Delta deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/185:50 am
SFO
- PWM
1 stop7h 07m
Delta
Fri 4/244:43 pm
PWM
- SFO
1 stop8h 43m
Delta
Deal found 3/4![Delta logo]()
$300
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.
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 Delta deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/209:35 pm
SFO
- PWM
2 stops13h 36m
Delta
Wed 4/224:43 pm
PWM
- SFO
1 stop8h 43m
Delta
Deal found 3/4![Delta logo]()
$305
This Southwest deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/307:25 am
SFO
- PWM
2 stops13h 00m
Southwest
Fri 5/82:50 pm
PWM
- SFO
1 stop11h 30m
Southwest
Deal found 3/3![Southwest logo]()
$349
This Delta deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/185:50 am
SFO
- PWM
1 stop7h 07m
Delta
Sun 4/264:43 pm
PWM
- SFO
1 stop8h 43m
Delta
Deal found 3/4![Delta logo]()
$314
This Southwest deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1911:25 pm
SFO
- PWM
2 stops11h 45m
Southwest
Wed 4/223:55 pm
PWM
- SFO
1 stop8h 30m
Southwest
Deal found 3/2![Southwest logo]()
$399
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 5/126:00 am
SFO
- PWM
2 stops14h 18m
Delta
Fri 5/154:48 pm
PWM
- SFO
2 stops10h 09m
Delta
Deal found 3/5![Delta logo]()
$345
This Delta deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/169:35 pm
SFO
- PWM
2 stops10h 29m
Delta
Tue 3/2412:51 pm
PWM
- SFO
1 stop9h 16m
Delta
Deal found 3/2![Delta logo]()
$359
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 Delta deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/65:50 am
SFO
- PWM
1 stop7h 07m
Delta
Sun 5/106:00 am
PWM
- SFO
1 stop8h 48m
Delta
Deal found 3/1![Delta logo]()
$399
Last-minute flights from San Francisco to PortlandDiscover last-minute flight deals from San Francisco to Portland. Data last updated March 6, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Portland. Data last updated March 6, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/185:50 am
SFO
- PWM
1 stop7h 07m
Delta
Wed 4/224:43 pm
PWM
- SFO
1 stop8h 43m
Delta
Deal found 3/4![Delta logo]()
$271
This Delta deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/185:50 am
SFO
- PWM
1 stop7h 07m
Delta
Sat 4/256:30 am
PWM
- SFO
2 stops16h 54m
Delta
Deal found 3/4![Delta logo]()
$276
This Delta deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/185:50 am
SFO
- PWM
1 stop7h 07m
Delta
Fri 4/244:43 pm
PWM
- SFO
1 stop8h 43m
Delta
Deal found 3/4![Delta logo]()
$300
This JetBlue deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/188:00 am
SFO
- PWM
1 stop12h 59m
JetBlue
Sat 4/257:30 am
PWM
- SFO
1 stop9h 51m
JetBlue
Deal found 3/1![JetBlue logo]()
$304
This Delta deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/185:50 am
SFO
- PWM
1 stop7h 07m
Delta
Sun 4/264:43 pm
PWM
- SFO
1 stop8h 43m
Delta
Deal found 3/4![Delta logo]()
$314
This Delta deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/185:50 am
SFO
- PWM
1 stop7h 07m
Delta
Tue 4/216:30 am
PWM
- SFO
2 stops15h 39m
Delta
Deal found 3/4![Delta logo]()
$319
This Delta deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/209:35 pm
SFO
- PWM
2 stops13h 36m
Delta
Sat 4/256:30 am
PWM
- SFO
2 stops16h 54m
Delta
Deal found 3/4![Delta logo]()
$310
This Delta deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/205:50 am
SFO
- PWM
1 stop7h 07m
Delta
Fri 4/2412:46 pm
PWM
- SFO
1 stop9h 17m
Delta
Deal found 3/4![Delta logo]()
$329
This Delta deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/217:25 am
SFO
- PWM
1 stop14h 21m
Delta
Sat 4/251:12 pm
PWM
- SFO
1 stop10h 12m
Delta
Deal found 3/4![Delta logo]()
$318
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 6, 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 6, 2026.
This American Airlines deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2411:49 pm
SFO
- PWM
1 stop9h 25m
American Airlines
Deal found 3/1![American Airlines logo]()
$126
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 Delta deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1311:34 am
SFO
- PWM
2 stops10h 09m
Delta
Deal found 3/4![Delta logo]()
$144
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.
Tue 4/2111:52 am
SFO
- PWM
1 stop9h 21m
American Airlines
Deal found 3/5![American Airlines logo]()
$156
This Southwest deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/169:15 pm
SFO
- PWM
1 stop13h 55m
Southwest
Deal found 3/3![Southwest logo]()
$160
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 3/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/611:25 pm
SFO
- PWM
2 stops9h 55m
Southwest
Deal found 3/4![Southwest logo]()
$170
This JetBlue deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/178:00 am
SFO
- PWM
1 stop12h 59m
JetBlue
Deal found 3/3![JetBlue logo]()
$171
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 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $271 (Delta) |
One-way from | $126 (American Airlines) |
Popular in | December |
Cheapest in | January |
Average price | $644 |
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 6, 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
Quickest round-trip
San FranciscoPortland
SFO - PWM
SFOPWM
San Francisco
Sat 4/18
5:50 am-3:57 pm
1 stop7h 07m
Portland
Fri 4/24
4:43 pm-10:26 pm
1 stop8h 43m
$300
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
Mon 4/20
9:35 pm-2:11 pm
2 stops13h 36m
Portland
Wed 4/22
4:43 pm-10:26 pm
1 stop8h 43m
$305
San FranciscoPortland
SFO - PWM
SFOPWM
San Francisco
Sat 4/18
5:50 am-3:57 pm
1 stop7h 07m
Portland
Sun 4/26
4:43 pm-10:26 pm
1 stop8h 43m
$314
San FranciscoPortland
SFO - PWM
SFOPWM
San Francisco
Tue 5/12
6:00 am-11:18 pm
2 stops14h 18m
Portland
Fri 5/15
4:48 pm-11:57 pm
2 stops10h 09m
$345
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
Thu 4/30
7:25 am-11:25 pm
2 stops13h 00m
Portland
Fri 5/8
2:50 pm-11:20 pm
1 stop11h 30m
$349
San FranciscoPortland
SFO - PWM
SFOPWM
San Francisco
Mon 3/16
9:35 pm-11:04 am
2 stops10h 29m
Portland
Tue 3/24
12:51 pm-7:07 pm
1 stop9h 16m
$359
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
Sun 4/19
11:25 pm-2:10 pm
2 stops11h 45m
Portland
Wed 4/22
3:55 pm-9:25 pm
1 stop8h 30m
$399
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 February 27, 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.
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 March 6, 2026.
See what other customers who have flown with Southwest, Delta, and United 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.
Overall
8.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Food
7.0
Crew
8.6
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
Conway
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San Francisco and Portland flights
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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 March 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$155 | Average$360 | 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$408 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$293 | Average$540 | FlexibilityNo cancel fee | On-time69% |