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Cheap flights from Portland to San Francisco from £55

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 11/3. 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

Enter your travel dates to find the best prices.
Alaska Airlines Logo
10:33 - 12:23
PDX
-
SFO
1h 50mdirect
Alaska Airlines Logo
14:30 - 20:47
SFO
-
PDX
6h 17m1 stop
£113Alaska Airlines
Sat, 24 Jan - Sat, 24 Jan
Alaska Airlines Logo
07:20 - 09:11
PDX
-
SFO
1h 51mdirect
Alaska Airlines Logo
06:00 - 12:38
SFO
-
PDX
6h 38m1 stop
£114Alaska Airlines
Wed, 7 Jan - Sun, 11 Jan
Southwest Logo
06:00 - 11:50
PDX
-
SFO
5h 50m1 stop
Southwest Logo
11:30 - 20:30
SFO
-
PDX
9h 00m2 stops
£117Southwest
Tue, 13 Jan - Tue, 20 Jan
Alaska Airlines Logo
17:50 - 19:47
PDX
-
SFO
1h 57mdirect
Alaska Airlines Logo
09:00 - 10:56
SFO
-
PDX
1h 56mdirect
£117Alaska Airlines
Sat, 21 Feb - Fri, 27 Feb
Southwest Logo
12:30 - 20:05
PDX
-
SFO
7h 35m1 stop
Southwest Logo
11:10 - 19:15
SFO
-
PDX
8h 05m1 stop
£119Southwest
Sat, 24 Jan - Tue, 27 Jan
Delta Logo
13:30 - 17:49
PDX
-
SFO
4h 19m1 stop
Delta Logo
10:25 - 22:48
SFO
-
PDX
12h 23m1 stop
£120Delta
Tue, 10 Feb - Sat, 21 Feb
Delta Logo
17:15 - 23:28
PDX
-
SFO
6h 13m1 stop
Delta Logo
06:00 - 10:07
SFO
-
PDX
4h 07m1 stop
£121Delta
Tue, 6 Jan - Fri, 9 Jan
United Airlines Logo
19:45 - 21:43
PDX
-
SFO
1h 58mdirect
United Airlines Logo
12:58 - 14:55
SFO
-
PDX
1h 57mdirect
£122United Airlines
Thu, 1 Jan - Tue, 6 Jan
Southwest Logo
07:25 - 15:30
PDX
-
SFO
8h 05m2 stops
Southwest Logo
07:55 - 14:35
SFO
-
PDX
6h 40m1 stop
£122Southwest
Wed, 7 Jan - Sat, 10 Jan
Alaska Airlines Logo
17:35 - 23:03
PDX
-
SFO
5h 28m1 stop
Alaska Airlines Logo
16:46 - 20:47
SFO
-
PDX
4h 01m1 stop
£124Alaska Airlines
Wed, 7 Jan - Wed, 14 Jan

Alaska Airlines flights from Portland to San Francisco

Our best Alaska Airlines deals on Portland to San Francisco flight tickets
Alaska Airlines
24 Jan
PDX10:33Portland
1h 50m
SFO12:23San Francisco
24 Jan
SFO14:30San Francisco
6h 17m
1 stop
PDX20:47Portland
£113
Find similar
Alaska Airlines
7 Jan
PDX07:20Portland
1h 51m
SFO09:11San Francisco
11 Jan
SFO06:00San Francisco
6h 38m
1 stop
PDX12:38Portland
£114
Find similar
Alaska Airlines
21 Feb
PDX17:50Portland
1h 57m
SFO19:47San Francisco
27 Feb
SFO09:00San Francisco
1h 56m
PDX10:56Portland
£117
Find similar

Southwest flights from Portland to San Francisco

Our best Southwest deals on Portland to San Francisco flight tickets
Southwest
13 Jan
PDX06:00Portland
5h 50m
1 stop
SFO11:50San Francisco
20 Jan
SFO11:30San Francisco
9h 00m
2 stops
PDX20:30Portland
£117
Find similar
Southwest
24 Jan
PDX12:30Portland
7h 35m
1 stop
SFO20:05San Francisco
27 Jan
SFO11:10San Francisco
8h 05m
1 stop
PDX19:15Portland
£119
Find similar
Southwest
7 Jan
PDX07:25Portland
8h 05m
2 stops
SFO15:30San Francisco
10 Jan
SFO07:55San Francisco
6h 40m
1 stop
PDX14:35Portland
£122
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 12 December 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

Sat 24/1

10:33-12:23

Nonstop1h 50m

San Francisco

Sat 24/1

14:30-20:47

1 stop6h 17m

£113

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Wed 7/1

07:20-09:11

Nonstop1h 51m

San Francisco

Sun 11/1

06:00-12:38

1 stop6h 38m

£114

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Tue 13/1

06:00-11:50

1 stop5h 50m

San Francisco

Tue 20/1

11:30-20:30

2 stops9h 00m

£117

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Sat 21/2

17:50-19:47

Nonstop1h 57m

San Francisco

Fri 27/2

09:00-10:56

Nonstop1h 56m

£117

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Sat 24/1

12:30-20:05

1 stop7h 35m

San Francisco

Tue 27/1

11:10-19:15

1 stop8h 05m

£119

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Tue 10/2

13:30-17:49

1 stop4h 19m

San Francisco

Sat 21/2

10:25-22:48

1 stop12h 23m

£120

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Tue 6/1

17:15-23:28

1 stop6h 13m

San Francisco

Fri 9/1

06:00-10:07

1 stop4h 07m

£121

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Thu 1/1

19:45-21:43

Nonstop1h 58m

San Francisco

Tue 6/1

12:58-14:55

Nonstop1h 57m

£122

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Wed 7/1

07:25-15:30

2 stops8h 05m

San Francisco

Sat 10/1

07:55-14:35

1 stop6h 40m

£122

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Wed 7/1

17:35-23:03

1 stop5h 28m

San Francisco

Wed 14/1

16:46-20:47

1 stop4h 01m

£124

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 £65. 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 £136.

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 £31. 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 Monday will generally be more expensive and average around £1,643. 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 £94. Try not to purchase tickets in the evening because they tend to be around £1,643. 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 £159 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 £127 on momondo.

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

There are 2 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.

Can stopping save me money on Portland to San Francisco flights?

No. A direct flight is the cheapest option for a flight between Portland to San Francisco.

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

As of December 2025, prices for Portland to San Francisco flights are approximately 45% 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

£154

Fastest flight time

2h 01m

Direct flights

Every day

Airports in San Francisco

1 airport
The best flight deal from Portland to San Francisco found on momondo in the last 72 hours is £154
The fastest flight from Portland to San Francisco takes 2h 01m
Direct flights go from Portland to San Francisco every day.
There is 1 airport in San Francisco. From Portland there are direct flights to 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 2h 01m.

  • 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 £28Free CancellationRating
5.8
3,084 reviews
Search Frontier flights
Alaska AirlinesPriceFrom £58Free CancellationRating
8.0
11,432 reviews
Search Alaska Airlines flights

  • Alaska Airlines Flights From Portland to San Francisco

    Alaska Airlines flies from Portland to San Francisco around 16 times per week, with 11,432 momondo users rating the airline 8.0/10. The cheapest Alaska Airlines deal from Portland to San Francisco in the last 72 hours was £58 (round-trip), much lower than the average airfare cost of £167 for Alaska Airlines 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
Santa Clara
Carmel-by-the-Sea
Seaside
Big Sur
Rohnert Park
Campbell
Palo Alto
Santa Cruz
South San Francisco
Capitola
Novato
Sausalito
San Bruno
Woodland
Redwood City
Aptos
Pacific Grove
Burlingame
Modesto
Sunnyvale

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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