$179+ Cheap flights from San Francisco to Portland, ME (SFO - PWM)
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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — PWM
Oct 11 — Oct 181
Round-trip
1 adult, Economy
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Find cheap flights from San Francisco to Portland 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
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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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Best
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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 September 11, 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 September 11, 2026.
This Delta deal was found by Cheapflights users on 9/8. 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.
Sat 10/176:00 am -
1 stop7h 02m
Sat 10/244:47 pm -
1 stop8h 51m
Deal found 9/8![Delta logo]()
$357
This United Airlines deal was found by Cheapflights users on 9/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/178:30 am -
Nonstop5h 47m
Sat 10/246:00 am -
1 stop8h 25m
Deal found 9/8![United Airlines logo]()
$364
This Southwest deal was found by Cheapflights users on 9/7. 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 10/176:25 pm -
2 stops12h 15m
Sat 10/245:35 am -
2 stops12h 00m
Deal found 9/7![Southwest logo]()
$367
This Southwest deal was found by Cheapflights users on 9/8. 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.
Sat 10/176:25 pm -
2 stops12h 15m
Thu 10/225:20 am -
1 stop12h 15m
Deal found 9/8![Southwest logo]()
$368
This Southwest deal was found by Cheapflights users on 9/8. 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.
Fri 10/239:35 pm -
1 stop9h 10m
Tue 10/276:00 pm -
1 stop8h 40m
Deal found 9/8![Southwest logo]()
$373
This United Airlines deal was found by Cheapflights users on 9/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/178:30 am -
Nonstop5h 47m
Sun 10/257:50 am -
Nonstop7h 01m
Deal found 9/8![United Airlines logo]()
$379
This Delta deal was found by Cheapflights users on 9/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/168:58 pm -
2 stops10h 52m
Thu 10/226:04 am -
1 stop12h 00m
Deal found 9/9![Delta logo]()
$383
This Delta deal was found by Cheapflights users on 9/8. 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.
Fri 10/3010:25 pm -
2 stops14h 37m
Mon 11/211:55 am -
1 stop8h 20m
Deal found 9/8![Delta logo]()
$393
This Southwest deal was found by Cheapflights users on 9/5. 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.
Fri 10/309:35 pm -
1 stop9h 35m
Mon 11/25:20 am -
1 stop11h 25m
Deal found 9/5![Southwest logo]()
$399
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 September 11, 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 September 11, 2026.
This Southwest deal was found by Cheapflights users on 9/7. 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 10/176:25 pm -
2 stops12h 15m
Sat 10/245:35 am -
2 stops12h 00m
Deal found 9/7![Southwest logo]()
$367
This United Airlines deal was found by Cheapflights users on 9/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/178:30 am -
Nonstop5h 47m
Sat 10/2411:35 am -
1 stop8h 45m
Deal found 9/7![United Airlines logo]()
$378
This Delta deal was found by Cheapflights users on 9/8. 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.
Fri 10/309:46 am -
2 stops10h 49m
Mon 11/212:42 pm -
2 stops14h 14m
Deal found 9/8![Delta logo]()
$399
This Southwest deal was found by Cheapflights users on 9/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1911:40 pm -
1 stop8h 15m
Fri 10/233:25 pm -
2 stops10h 50m
Deal found 9/6![Southwest logo]()
$404
This Delta deal was found by Cheapflights users on 9/5. 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.
Wed 10/2112:10 am -
1 stop7h 40m
Sun 10/254:15 pm -
1 stop12h 00m
Deal found 9/5![Delta logo]()
$419
This Delta deal was found by Cheapflights users on 9/8. 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.
Sat 10/176:00 am -
1 stop7h 02m
Wed 10/282:09 pm -
1 stop11h 31m
Deal found 9/8![Delta logo]()
$419
This United Airlines deal was found by Cheapflights users on 9/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/109:30 pm -
1 stop8h 30m
Wed 11/115:08 pm -
1 stop10h 45m
Deal found 9/7![United Airlines logo]()
$467
This Southwest deal was found by Cheapflights users on 9/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/189:35 pm -
1 stop9h 15m
Fri 10/233:25 pm -
2 stops10h 50m
Deal found 9/6![Southwest logo]()
$444
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 10/111:10 pm -
1 stop7h 52m
Sun 10/47:50 am -
Nonstop6h 35m
Deal found 9/10![United Airlines logo]()
$512
This Southwest deal was found by Cheapflights users on 9/5. 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.
Thu 11/510:40 am -
2 stops10h 10m
Sun 11/85:20 am -
2 stops12h 05m
Deal found 9/5![Southwest logo]()
$468
This Delta deal was found by Cheapflights users on 9/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:45 pm -
2 stops14h 05m
Sun 11/86:01 am -
1 stop11h 41m
Deal found 9/6![Delta logo]()
$534
Last-minute flights from San Francisco to PortlandDiscover last-minute flight deals from San Francisco to Portland. Data last updated September 11, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Portland. Data last updated September 11, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/168:58 pm -
2 stops10h 52m
Thu 10/226:04 am -
1 stop12h 00m
Deal found 9/9![Delta logo]()
$383
This Delta deal was found by Cheapflights users on 9/8. 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.
Sat 10/176:00 am -
1 stop7h 02m
Sat 10/244:47 pm -
1 stop8h 51m
Deal found 9/8![Delta logo]()
$357
This United Airlines deal was found by Cheapflights users on 9/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/178:30 am -
Nonstop5h 47m
Sat 10/246:00 am -
1 stop8h 25m
Deal found 9/8![United Airlines logo]()
$364
This Southwest deal was found by Cheapflights users on 9/7. 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 10/176:25 pm -
2 stops12h 15m
Sat 10/245:35 am -
2 stops12h 00m
Deal found 9/7![Southwest logo]()
$367
This Southwest deal was found by Cheapflights users on 9/8. 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.
Sat 10/176:25 pm -
2 stops12h 15m
Thu 10/225:20 am -
1 stop12h 15m
Deal found 9/8![Southwest logo]()
$368
This United Airlines deal was found by Cheapflights users on 9/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/178:30 am -
Nonstop5h 47m
Sun 10/257:50 am -
Nonstop7h 01m
Deal found 9/8![United Airlines logo]()
$379
This Southwest deal was found by Cheapflights users on 9/8. 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.
Fri 10/239:35 pm -
1 stop9h 10m
Tue 10/276:00 pm -
1 stop8h 40m
Deal found 9/8![Southwest logo]()
$373
This Delta deal was found by Cheapflights users on 9/8. 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.
Fri 10/3010:25 pm -
2 stops14h 37m
Mon 11/211:55 am -
1 stop8h 20m
Deal found 9/8![Delta logo]()
$393
This Southwest deal was found by Cheapflights users on 9/5. 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.
Fri 10/309:35 pm -
1 stop9h 35m
Mon 11/25:20 am -
1 stop11h 25m
Deal found 9/5![Southwest logo]()
$399
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 September 11, 2026.
Search for one-way flight options from San Francisco to Portland. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Mon 10/59:15 pm -
1 stop8h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![United Airlines logo]()
$179
This Delta deal was found by Cheapflights users on 9/10. 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 10/510:59 pm -
2 stops11h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Delta logo]()
$184
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 10/1611:30 pm -
1 stop8h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![United Airlines logo]()
$195
This Southwest deal was found by Cheapflights users on 9/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/511:40 pm -
1 stop8h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Southwest logo]()
$200
This Southwest deal was found by Cheapflights users on 9/7. 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 10/36:25 pm -
2 stops12h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Southwest logo]()
$205
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1810:19 pm -
3 stops55h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2511:22 am -
3 stops50h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$214
This KAYAK deal was found by Cheapflights users on 9/9. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3012:05 am -
2 stops12h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Delta logo]()
$216
This Delta deal was found by Cheapflights users on 9/10. 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.
Fri 10/1611:45 am -
1 stop9h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Delta logo]()
$220
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/110:23 pm -
3 stops55h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$223
This American Airlines deal was found by Cheapflights users on 9/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/115:30 am -
1 stop10h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![American Airlines logo]()
$224
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 September 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $357 (Delta) |
One-way from | $179 (United Airlines) |
Popular in | December |
Cheapest in | January |
Average price | $512 |
Good round-trip deal | $389 or less |
Good one-way deal | $363 or less |
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 7,457,451 searches. Data last updated September 11, 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 San Francisco - PWM Portland
SFOPWM
San Francisco
Wed 10/28
9:46 am-11:01 pm
2 stops10h 15m
Portland
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$184
San FranciscoPortland
SFO San Francisco - PWM Portland
SFOPWM
San Francisco
Fri 10/16
11:30 pm-10:40 am
1 stop8h 10m
Portland
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$195
San FranciscoPortland
SFO San Francisco - PWM Portland
SFOPWM
San Francisco
Sat 10/24
11:10 am-10:15 pm
1 stop8h 05m
Portland
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$200
San FranciscoPortland
SFO San Francisco - PWM Portland
SFOPWM
San Francisco
Mon 10/5
11:40 pm-10:55 am
1 stop8h 15m
Portland
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$200
San FranciscoPortland
SFO San Francisco - PWM Portland
SFOPWM
San Francisco
Tue 10/20
11:40 pm-10:55 am
1 stop8h 15m
Portland
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$200
San FranciscoPortland
SFO San Francisco - PWM Portland
SFOPWM
San Francisco
Fri 10/16
8:58 pm-10:50 am
2 stops10h 52m
Portland
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$205
San FranciscoPortland
SFO San Francisco - PWM Portland
SFOPWM
San Francisco
Wed 9/30
12:45 pm-11:59 pm
1 stop8h 14m
Portland
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$234
Quickest round-trip
San FranciscoPortland
SFO San Francisco - PWM Portland
SFOPWM
San Francisco
Sun 10/11
12:10 am-10:50 am
1 stop7h 40m
Portland
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$234
San FranciscoPortland
SFO San Francisco - PWM Portland
SFOPWM
San Francisco
Tue 9/29
11:30 pm-10:40 am
1 stop8h 10m
Portland
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$234
San FranciscoPortland
SFO San Francisco - PWM Portland
SFOPWM
San Francisco
Wed 10/7
11:45 am-12:10 am
1 stop9h 25m
Portland
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$234
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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy1 star | 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 34 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 $343). Flying from San Francisco to Portland, Maine in December is currently the most expensive (average of $792). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SFO to PWM?
Find hourly flight availability from San Francisco to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2026.
When flying from San Francisco to Portland, Maine, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
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 September 11, 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
Entertainment
7.5
Food
7.0
Crew
8.6
Overall
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Overall
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Overall
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Overall
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Overall
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Overall
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
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.
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Book flights to Portland if you plan to visit one of these locationsNorth 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 7,457,451 searches. Data last updated September 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$256 | Average$512 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$272 | Average$598 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$292 | Average$362 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$331 | Average$591 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$392 | Average$509 | FlexibilityNo cancel fee | On-time63% |