$129+ Cheap flights from Portland, ME to San Francisco (PWM - SFO)
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 11/16. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SFO
Sep 9 — Sep 161
Round-trip
1 adult, Economy
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Find cheap flights from Portland to San Francisco with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Portland to San Francisco are usually found in January or September, booked 40 days in advance, depart on a Tuesday or Monday and return on a Monday
Cheap flight deals from Portland to San Francisco
Cheapest
Best
Last-minute
One-way
Cheapest flights from Portland to San FranciscoExplore the most affordable flight options available from Portland to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 10, 2026.
Explore the most affordable flight options available from Portland to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 10, 2026.
This Southwest deal was found by Cheapflights users on 8/9. 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.
Sat 9/125:40 am -
1 stop8h 15m
Sat 9/1910:30 pm -
1 stop9h 05m
Deal found 8/9![Southwest logo]()
$313
This Southwest deal was found by Cheapflights users on 8/9. 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 10/205:40 am -
2 stops12h 30m
Sat 10/316:00 am -
1 stop9h 45m
Deal found 8/9![Southwest logo]()
$319
This Southwest deal was found by Cheapflights users on 8/5. 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.
Sat 8/295:40 am -
1 stop8h 15m
Tue 9/110:30 pm -
1 stop8h 25m
Deal found 8/5![Southwest logo]()
$334
This United Airlines deal was found by Cheapflights users on 8/9. 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.
Sun 9/137:30 am -
Nonstop6h 35m
Sat 9/198:44 am -
Nonstop5h 47m
Deal found 8/9![United Airlines logo]()
$359
This American Airlines deal was found by Cheapflights users on 8/7. 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.
Wed 9/28:00 am -
1 stop9h 54m
Wed 9/1610:31 am -
1 stop10h 16m
Deal found 8/7![American Airlines logo]()
$379
This American Airlines deal was found by Cheapflights users on 8/7. 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.
Wed 9/232:03 pm -
1 stop10h 49m
Sun 9/276:00 am -
1 stop7h 54m
Deal found 8/7![American Airlines logo]()
$380
This Delta deal was found by Cheapflights users on 8/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/24:47 pm -
1 stop8h 00m
Wed 9/166:00 am -
2 stops14h 28m
Deal found 8/7![Delta logo]()
$384
This Southwest deal was found by Cheapflights users on 8/5. 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 8/2810:30 am -
2 stops11h 00m
Sun 8/307:50 pm -
2 stops11h 00m
Deal found 8/5![Southwest logo]()
$394
This United Airlines deal was found by Cheapflights users on 8/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:30 am -
Nonstop6h 35m
Sat 9/268:30 am -
Nonstop5h 47m
Deal found 8/5![United Airlines logo]()
$399
Best flights from Portland to San FranciscoDiscover carefully curated flight deals from Portland to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 10, 2026.
Discover carefully curated flight deals from Portland to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 10, 2026.
This Southwest deal was found by Cheapflights users on 8/9. 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 10/205:40 am -
2 stops12h 30m
Sat 10/316:00 am -
1 stop9h 45m
Deal found 8/9![Southwest logo]()
$319
This United Airlines deal was found by Cheapflights users on 8/9. 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.
Sun 9/137:30 am -
Nonstop6h 35m
Sat 9/198:44 am -
Nonstop5h 47m
Deal found 8/9![United Airlines logo]()
$359
This Delta deal was found by Cheapflights users on 8/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/24:47 pm -
1 stop8h 00m
Wed 9/166:00 am -
2 stops14h 28m
Deal found 8/7![Delta logo]()
$384
This United Airlines deal was found by Cheapflights users on 8/6. 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.
Sun 9/67:30 am -
Nonstop6h 35m
Sun 9/1310:35 pm -
1 stop8h 29m
Deal found 8/6![United Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 8/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/164:15 pm -
1 stop11h 19m
Mon 10/198:59 pm -
2 stops10h 51m
Deal found 8/7![Delta logo]()
$384
This Delta deal was found by Cheapflights users on 8/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1611:50 am -
2 stops12h 59m
Wed 9/2311:35 am -
1 stop9h 21m
Deal found 8/7![Delta logo]()
$384
This Southwest deal was found by Cheapflights users on 8/8. 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 10/165:20 am -
2 stops11h 05m
Wed 10/219:35 pm -
1 stop9h 15m
Deal found 8/8![Southwest logo]()
$432
This Delta deal was found by Cheapflights users on 8/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/42:14 pm -
2 stops10h 05m
Fri 9/117:20 am -
2 stops13h 36m
Deal found 8/7![Delta logo]()
$389
Last-minute flights from Portland to San FranciscoDiscover last-minute flight deals from Portland to San Francisco. Data last updated August 10, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to San Francisco. Data last updated August 10, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 8/5. 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 8/2810:30 am -
2 stops11h 00m
Sun 8/307:50 pm -
2 stops11h 00m
Deal found 8/5![Southwest logo]()
$394
This Southwest deal was found by Cheapflights users on 8/5. 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.
Sat 8/295:40 am -
1 stop8h 15m
Tue 9/110:30 pm -
1 stop8h 25m
Deal found 8/5![Southwest logo]()
$334
This American Airlines deal was found by Cheapflights users on 8/7. 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.
Wed 9/28:00 am -
1 stop9h 54m
Wed 9/1610:31 am -
1 stop10h 16m
Deal found 8/7![American Airlines logo]()
$379
This Delta deal was found by Cheapflights users on 8/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/24:47 pm -
1 stop8h 00m
Wed 9/166:00 am -
2 stops14h 28m
Deal found 8/7![Delta logo]()
$384
This Southwest deal was found by Cheapflights users on 8/9. 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.
Sat 9/125:40 am -
1 stop8h 15m
Sat 9/1910:30 pm -
1 stop9h 05m
Deal found 8/9![Southwest logo]()
$313
This United Airlines deal was found by Cheapflights users on 8/9. 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.
Sun 9/137:30 am -
Nonstop6h 35m
Sat 9/198:44 am -
Nonstop5h 47m
Deal found 8/9![United Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 8/9. 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.
Mon 9/147:35 pm -
1 stop8h 24m
Mon 9/2110:15 pm -
1 stop7h 53m
Deal found 8/9![United Airlines logo]()
$400
This United Airlines deal was found by Cheapflights users on 8/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:30 am -
Nonstop6h 35m
Sat 9/268:30 am -
Nonstop5h 47m
Deal found 8/5![United Airlines logo]()
$399
This American Airlines deal was found by Cheapflights users on 8/7. 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.
Wed 9/232:03 pm -
1 stop10h 49m
Sun 9/276:00 am -
1 stop7h 54m
Deal found 8/7![American Airlines logo]()
$380
One-way flights from Portland to San FranciscoSearch for one-way flight options from Portland to San Francisco. Find affordable one-way fares based on user searches. Data last updated August 10, 2026.
Search for one-way flight options from Portland to San Francisco. Find affordable one-way fares based on user searches. Data last updated August 10, 2026.
This Southwest deal was found by Cheapflights users on 8/9. 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.
Mon 11/1612:45 pm -
2 stops12h 25m
Deal found 8/9![Southwest logo]()
$129
This Southwest deal was found by Cheapflights users on 8/5. 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 9/15:45 am -
1 stop8h 50m
Deal found 8/5![Southwest logo]()
$145
This Southwest deal was found by Cheapflights users on 8/4. 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.
Thu 9/105:55 am -
1 stop10h 05m
Deal found 8/4![Southwest logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/125:09 pm -
3 stops46h 16m
Deal found 8/4![Multiple Airlines logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:00 am -
2 stops30h 25m
Deal found 8/9![Multiple Airlines logo]()
$196
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:00 am -
1 stop32h 02m
Deal found 8/9![Breeze Airways logo]()
$201
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 9/295:09 pm -
3 stops46h 16m
Deal found 8/5![Multiple Airlines logo]()
$202
Find flight deals from Portland to San Francisco
Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to San Francisco (SFO). 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 August 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $313 (Southwest) |
One-way from | $129 (Southwest) |
Popular in | July |
Cheapest in | January |
Average price | $478 |
Good round-trip deal | $509 or less |
Good one-way deal | $363 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Portland to San Francisco 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 August 10, 2026.
Use the filters below to find and compare flights from Portland to San Francisco that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandSan Francisco
PWM Portland - SFO San Francisco
PWMSFO
Portland
Tue 10/20
5:40 am-3:10 pm
2 stops12h 30m
San Francisco
Sat 10/31
6:00 am-6:45 pm
1 stop9h 45m
$319
Quickest round-trip
PortlandSan Francisco
PWM Portland - SFO San Francisco
PWMSFO
Portland
Sun 9/13
7:30 am-11:05 am
Nonstop6h 35m
San Francisco
Sat 9/19
8:44 am-5:31 pm
Nonstop5h 47m
$359
PortlandSan Francisco
PWM Portland - SFO San Francisco
PWMSFO
Portland
Sun 9/6
7:30 am-11:05 am
Nonstop6h 35m
San Francisco
Sun 9/13
10:35 pm-10:04 am
1 stop8h 29m
$369
PortlandSan Francisco
PWM Portland - SFO San Francisco
PWMSFO
Portland
Wed 9/2
4:47 pm-9:47 pm
1 stop8h 00m
San Francisco
Wed 9/16
6:00 am-11:28 pm
2 stops14h 28m
$384
PortlandSan Francisco
PWM Portland - SFO San Francisco
PWMSFO
Portland
Fri 10/16
4:15 pm-12:34 am
1 stop11h 19m
San Francisco
Mon 10/19
8:59 pm-10:50 am
2 stops10h 51m
$384
PortlandSan Francisco
PWM Portland - SFO San Francisco
PWMSFO
Portland
Wed 9/16
11:50 am-9:49 pm
2 stops12h 59m
San Francisco
Wed 9/23
11:35 am-11:56 pm
1 stop9h 21m
$384
PortlandSan Francisco
PWM Portland - SFO San Francisco
PWMSFO
Portland
Fri 9/4
2:14 pm-9:19 pm
2 stops10h 05m
San Francisco
Fri 9/11
7:20 am-11:56 pm
2 stops13h 36m
$389
PortlandSan Francisco
PWM Portland - SFO San Francisco
PWMSFO
Portland
Fri 10/16
5:20 am-1:25 pm
2 stops11h 05m
San Francisco
Wed 10/21
9:35 pm-9:50 am
1 stop9h 15m
$432
Cheapest one-way
PortlandSan Francisco
PWM Portland - SFO San Francisco
PWMSFO
Portland
Tue 9/22
5:45 am-11:35 am
1 stop8h 50m
$190
PortlandSan Francisco
PWM Portland - SFO San Francisco
PWMSFO
Portland
Tue 9/1
5:45 am-11:35 am
1 stop8h 50m
$190
Showing 1-10 of 15 resultsSorted by cheapest first
Compare providers for flights from Portland to San Francisco
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 Portland to San Francisco in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Portland, Maine-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland, Maine-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland, Maine-San Francisco flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Portland, Maine-San Francisco 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 Portland, Maine-San Francisco 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 Portland to San Francisco
Have a flexible travel schedule? Discover the best time to fly to San Francisco from Portland with our price prediction graph.
PWM-SFO
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 Portland to San Francisco
How far ahead should I book a flight from Portland, Maine to San Francisco?
The best time to book flights from Portland, Maine to San Francisco is 39 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Portland, Maine to San Francisco?
Currently, January is the cheapest month in which you can book a flight from Portland, Maine to San Francisco (average of $415). Flying from Portland, Maine to San Francisco in July is currently the most expensive (average of $652). 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 PWM to SFO?
Find hourly flight availability from Portland to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 10, 2026.
When flying from Portland, Maine to San Francisco, 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 San Francisco
Get insights into the airlines that provide service to San Francisco. 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 San Francisco. Reviews last updated August 10, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from Portland to San Francisco have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Related info for your journey
Find useful and relevant information for your journey from Portland to San Francisco. 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 San Francisco?
Book flights to San Francisco if you plan to visit one of these locationsSouth San Francisco
Santa Clara
Santa Cruz
Walnut Creek
San Bruno
Fairfield
Emeryville
Roseville
Burlingame
Rancho Cordova
Vallejo
Cupertino
Newark
Hayward
San Ramon
Redwood City
San Carlos
Manteca
Turlock
San Lorenzo
Browse thousands of different options on Cheapflights for your next trip
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Find flights from Portland to San Francisco, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Portland and San Francisco flights
Browse other Portland and San Francisco flight options. Last updated on August 10, 2026.
Other flights from Portland
Browse through other flights departing from Portland. Flights are based on user searches made on Cheapflights and were last updated on August 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to San Francisco
Explore flights to San Francisco departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 10, 2026.
Top 5 airlines flying from Portland to San Francisco
Discover the top 5 airlines that operate flights from Portland to San Francisco. 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 August 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$236 | Average$345 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$256 | Average$450 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$268 | Average$539 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$276 | Average$501 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$416 | Average$558 | FlexibilityNo cancel fee | On-time63% |