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Cheap flights from Portland to San Francisco from £37

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to San Francisco departing on 3/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap return flights

Alaska Airlines Logo
14:30 - 16:24PDX-SFO
1h 54mdirect
Alaska Airlines Logo
08:00 - 09:47SFO-PDX
1h 47mdirect
£73Alaska Airlines
Find Deal
Wed, 27 Aug - Wed, 3 Sep
Hawaiian Airlines Logo
14:30 - 16:24PDX-SFO
1h 54mdirect
Hawaiian Airlines Logo
08:00 - 09:47SFO-PDX
1h 47mdirect
£96Hawaiian Airlines
Find Deal
Sat, 30 Aug - Sun, 31 Aug
United Airlines Logo
13:45 - 15:35PDX-SFO
1h 50mdirect
United Airlines Logo
20:50 - 22:37SFO-PDX
1h 47mdirect
£100United Airlines
Find Deal
Wed, 20 Aug - Thu, 11 Sep
Delta Logo
15:18 - 19:47PDX-SFO
4h 29m1 stop
Delta Logo
05:55 - 12:55SFO-PDX
7h 00m1 stop
£104Delta
Find Deal
Sat, 30 Aug - Sat, 6 Sep
Hawaiian Airlines Logo
10:30 - 12:30PDX-SFO
2h 00mdirect
Hawaiian Airlines Logo
18:20 - 00:15SFO-PDX
5h 55m1 stop
£107Hawaiian Airlines
Find Deal
Tue, 9 Sep - Tue, 9 Sep
United Airlines Logo
13:45 - 15:35PDX-SFO
1h 50mdirect
United Airlines Logo
18:50 - 20:37SFO-PDX
1h 47mdirect
£108United Airlines
Find Deal
Tue, 26 Aug - Sat, 30 Aug
Alaska Airlines Logo
14:30 - 16:24PDX-SFO
1h 54mdirect
Alaska Airlines Logo
16:52 - 22:47SFO-PDX
5h 55m1 stop
£111Alaska Airlines
Find Deal
Sat, 6 Sep - Tue, 9 Sep
Southwest Logo
05:20 - 10:10PDX-SFO
4h 50m1 stop
Southwest Logo
05:30 - 11:25SFO-PDX
5h 55m1 stop
£116Southwest
Find Deal
Wed, 26 Nov - Wed, 3 Dec
Southwest Logo
05:20 - 10:10PDX-SFO
4h 50m1 stop
Southwest Logo
07:30 - 15:20SFO-PDX
7h 50m2 stops
£120Southwest
Find Deal
Wed, 26 Nov - Wed, 3 Dec
Delta Logo
10:15 - 17:17PDX-SFO
7h 02m1 stop
Delta Logo
05:55 - 10:25SFO-PDX
4h 30m1 stop
£122Delta
Find Deal
Sat, 6 Sep - Mon, 8 Sep

Hawaiian Airlines flights from Portland to San Francisco

Our best Hawaiian Airlines deals on Portland to San Francisco flight tickets
Hawaiian Airlines
30 Aug
PDX14:30Portland
1h 54m
SFO16:24San Francisco
31 Aug
SFO08:00San Francisco
1h 47m
PDX09:47Portland
£96
Find similar
Hawaiian Airlines
9 Sept
PDX10:30Portland
2h 00m
SFO12:30San Francisco
9 Sept
SFO18:20San Francisco
5h 55m
1 stop
PDX00:15Portland
£107
Find similar
Hawaiian Airlines
14 Oct
PDX14:30Portland
1h 51m
SFO16:21San Francisco
16 Oct
SFO11:37San Francisco
1h 51m
PDX13:28Portland
£126
Find similar

Alaska Airlines flights from Portland to San Francisco

Our best Alaska Airlines deals on Portland to San Francisco flight tickets
Alaska Airlines
27 Aug
PDX14:30Portland
1h 54m
SFO16:24San Francisco
3 Sept
SFO08:00San Francisco
1h 47m
PDX09:47Portland
£73
Find similar
Alaska Airlines
6 Sept
PDX14:30Portland
1h 54m
SFO16:24San Francisco
9 Sept
SFO16:52San Francisco
5h 55m
1 stop
PDX22:47Portland
£111
Find similar
Alaska Airlines
20 Aug
PDX14:30Portland
1h 54m
SFO16:24San Francisco
23 Aug
SFO18:45San Francisco
1h 50m
PDX20:35Portland
£115
Find similar

momondo Fare Finder

 
Customise 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, momondo users made 279,928 searches. Data last updated 1 August 2025.
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

Price

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Wed 27/8

14:30-16:24

Nonstop1h 54m

San Francisco

Wed 3/9

08:00-09:47

Nonstop1h 47m

£73

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Sat 30/8

14:30-16:24

Nonstop1h 54m

San Francisco

Sun 31/8

08:00-09:47

Nonstop1h 47m

£96

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Wed 20/8

13:45-15:35

Nonstop1h 50m

San Francisco

Thu 11/9

20:50-22:37

Nonstop1h 47m

£100

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Sat 30/8

15:18-19:47

1 stop4h 29m

San Francisco

Sat 6/9

05:55-12:55

1 stop7h 00m

£104

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Tue 9/9

10:30-12:30

Nonstop2h 00m

San Francisco

Tue 9/9

18:20-00:15

1 stop5h 55m

£107

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Tue 26/8

13:45-15:35

Nonstop1h 50m

San Francisco

Sat 30/8

18:50-20:37

Nonstop1h 47m

£108

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Sat 6/9

14:30-16:24

Nonstop1h 54m

San Francisco

Tue 9/9

16:52-22:47

1 stop5h 55m

£111

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Wed 26/11

05:20-10:10

1 stop4h 50m

San Francisco

Wed 3/12

05:30-11:25

1 stop5h 55m

£116

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Wed 26/11

05:20-10:10

1 stop4h 50m

San Francisco

Wed 3/12

07:30-15:20

2 stops7h 50m

£120

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Sat 6/9

10:15-17:17

1 stop7h 02m

San Francisco

Mon 8/9

05:55-10:25

1 stop4h 30m

£122

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Francisco from

How to get the cheapest flight ticket from Portland to San Francisco

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Francisco?

The month of January is, on average, the cheapest month to fly to San Francisco from Portland, with most prices found around £71. If you are unable to visit San Francisco during the month of January, then departing from Portland during the month August is also very affordable. Most momondo users find prices during this month for around £118.

What is the cheapest day to depart on your flight to San Francisco?

The cheapest day to depart on your flight to San Francisco is on a Thursday when prices can be found for as low as £32. This is often the case because there is less demand to fly during this day of the week. Flights from Portland to San Francisco on a Wednesday will generally be more expensive and average around £975. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to San Francisco?

Our most recent data shows that the best time of day to fly to San Francisco is at midday. Flights from Portland to San Francisco during this time can be as low as £95. Try not to purchase tickets in the afternoon because they tend to be around £277. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Portland to San Francisco flight route?

Fly from Portland to San Francisco for the best Portland - San Francisco flight prices

How far in advance should I book a flight to San Francisco?

You are more likely to see cheaper flights to San Francisco from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around £147 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Portland for as low as £112 on momondo.

What cabin class options are available on Portland to San Francisco flights?

There are 3 cabin classes available to choose from on Portland to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Portland to San Francisco flight prices changed over time?

As of August 2025, prices for Portland to San Francisco flights are approximately 73% cheaper when compared to flights at the same time last year.

When to book flights from Portland to San Francisco

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to San Francisco according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Portland to San Francisco (PDX to SFO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to San Francisco

Best price found

£37

Fastest flight time

1h 50m

Direct flights

Every day

Airports in San Francisco

1 airport
The best one-way flight to San Francisco from Portland in the past 72 hours is £37. The best return flight deal from Portland to San Francisco found on momondo in the last 72 hours is £73.
The fastest flight from Portland to San Francisco takes 1h 50m
Direct flights go from Portland to San Francisco every day.
There is 1 airport near San Francisco: San Francisco (SFO)
Search flight deals

  • How far is Portland to San Francisco by plane?

    The straight-line distance from Portland to San Francisco is 534.1 mi. By plane, this route typically takes 1h 50m.

  • When did momondo last update prices for flights from Portland Airport to San Francisco Airport?

    Prices for flights from Portland Airport to San Francisco Airport were last updated today.

  • How many operators does momondo search for flights from Portland Airport to San Francisco Airport?

  • How old do you have to be to fly from Portland Airport to San Francisco Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to San Francisco Airport.

  • What documentation or ID do you need to fly to San Francisco Airport?

    The necessary travel and health documents for your San Francisco Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Portland to San Francisco?

  • What is the most popular airline from Portland to San Francisco?

Best airlines flying from Portland to San Francisco

Compare and see reviews for airlines that fly from Portland to San Francisco with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom £29Free CancellationRating
5.9
3,239 reviews
Search Frontier flights

  • Frontier Flights From Portland to San Francisco

    Frontier flies from Portland to San Francisco around 2 times per week, with 3,239 momondo users rating the airline 5.9/10. The cheapest Frontier deal from Portland to San Francisco in the last 72 hours was £38 (round-trip), much lower than the average airfare cost of £126 for Frontier flights on this route.

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Carmel-by-the-Sea
Santa Clara
Seaside
Vacaville
Salinas
Vallejo
Calistoga
Rohnert Park
Campbell
Bodega Bay
Milpitas
San Ramon
South San Francisco
Brentwood
Capitola
Sonoma
San Bruno
Millbrae
Sausalito
Woodland

Why use momondo?

Why should I use momondo to find a flight deal from Portland to San Francisco?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Francisco from Portland.

Can I find flights from Portland to San Francisco with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San Francisco from Portland with this policy.

How can momondo help me find flights from Portland to San Francisco?

Once all potential Portland to San Francisco flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Portland to San Francisco right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to San Francisco from Portland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your San Francisco trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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