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Cheap flights from Portland to San Francisco from £56

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 27/4. 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
13:38 - 20:12
PDX
-
SFO
6h 34m1 stop
Alaska Airlines Logo
11:41 - 13:37
SFO
-
PDX
1h 56mdirect
£109Alaska Airlines
Sun, 8 Feb - Fri, 20 Feb
Southwest Logo
14:25 - 22:20
PDX
-
SFO
7h 55m1 stop
Southwest Logo
12:50 - 20:40
SFO
-
PDX
7h 50m1 stop
£112Southwest
Thu, 29 Jan - Sat, 31 Jan
Alaska Airlines Logo
14:38 - 21:55
PDX
-
SFO
7h 17m2 stops
Alaska Airlines Logo
18:56 - 20:48
SFO
-
PDX
1h 52mdirect
£115Alaska Airlines
Wed, 4 Feb - Fri, 6 Feb
Southwest Logo
07:25 - 15:30
PDX
-
SFO
8h 05m2 stops
Southwest Logo
05:00 - 12:15
SFO
-
PDX
7h 15m1 stop
£115Southwest
Wed, 28 Jan - Sun, 1 Feb
Southwest Logo
09:00 - 16:55
PDX
-
SFO
7h 55m2 stops
Southwest Logo
14:25 - 19:55
SFO
-
PDX
5h 30m1 stop
£116Southwest
Thu, 29 Jan - Sat, 31 Jan
Southwest Logo
05:15 - 14:20
PDX
-
SFO
9h 05m1 stop
Southwest Logo
05:00 - 14:55
SFO
-
PDX
9h 55m1 stop
£117Southwest
Thu, 12 Feb - Mon, 16 Feb
Alaska Airlines Logo
21:35 - 08:46
PDX
-
SFO
11h 11m1 stop
Alaska Airlines Logo
07:50 - 09:42
SFO
-
PDX
1h 52mdirect
£118Alaska Airlines
Mon, 23 Feb - Thu, 26 Feb
Delta Logo
19:35 - 09:30
PDX
-
SFO
13h 55m1 stop
Delta Logo
14:39 - 20:55
SFO
-
PDX
6h 16m1 stop
£119Delta
Tue, 17 Feb - Wed, 25 Feb
Southwest Logo
06:20 - 14:20
PDX
-
SFO
8h 00m2 stops
Southwest Logo
11:30 - 19:55
SFO
-
PDX
8h 25m2 stops
£120Southwest
Tue, 27 Jan - Thu, 29 Jan
Southwest Logo
09:00 - 16:55
PDX
-
SFO
7h 55m2 stops
Southwest Logo
13:50 - 22:05
SFO
-
PDX
8h 15m2 stops
£121Southwest
Mon, 2 Feb - Thu, 5 Feb

Alaska Airlines flights from Portland to San Francisco

Our best Alaska Airlines deals on Portland to San Francisco flight tickets
Alaska Airlines
8 Feb
PDX13:38Portland
6h 34m
1 stop
SFO20:12San Francisco
20 Feb
SFO11:41San Francisco
1h 56m
PDX13:37Portland
£109
Alaska Airlines
4 Feb
PDX14:38Portland
7h 17m
2 stops
SFO21:55San Francisco
6 Feb
SFO18:56San Francisco
1h 52m
PDX20:48Portland
£115
Alaska Airlines
23 Feb
PDX21:35Portland
11h 11m
1 stop
SFO08:46San Francisco
26 Feb
SFO07:50San Francisco
1h 52m
PDX09:42Portland
£118

Delta flights from Portland to San Francisco

Our best Delta deals on Portland to San Francisco flight tickets
Delta
17 Feb
PDX19:35Portland
13h 55m
1 stop
SFO09:30San Francisco
25 Feb
SFO14:39San Francisco
6h 16m
1 stop
PDX20:55Portland
£119
Delta
21 Feb
PDX15:59Portland
6h 42m
1 stop
SFO22:41San Francisco
22 Feb
SFO05:55San Francisco
12h 53m
1 stop
PDX18:48Portland
£126
Delta
12 Mar
PDX07:05Portland
6h 59m
1 stop
SFO14:04San Francisco
15 Mar
SFO06:05San Francisco
3h 57m
1 stop
PDX10:02Portland
£128

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 9 January 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

Price

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Sun 8/2

13:38-20:12

1 stop6h 34m

San Francisco

Fri 20/2

11:41-13:37

Nonstop1h 56m

£109

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Thu 29/1

14:25-22:20

1 stop7h 55m

San Francisco

Sat 31/1

12:50-20:40

1 stop7h 50m

£112

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Wed 4/2

14:38-21:55

2 stops7h 17m

San Francisco

Fri 6/2

18:56-20:48

Nonstop1h 52m

£115

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Wed 28/1

07:25-15:30

2 stops8h 05m

San Francisco

Sun 1/2

05:00-12:15

1 stop7h 15m

£115

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Thu 29/1

09:00-16:55

2 stops7h 55m

San Francisco

Sat 31/1

14:25-19:55

1 stop5h 30m

£116

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Thu 12/2

05:15-14:20

1 stop9h 05m

San Francisco

Mon 16/2

05:00-14:55

1 stop9h 55m

£117

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Mon 23/2

21:35-08:46

1 stop11h 11m

San Francisco

Thu 26/2

07:50-09:42

Nonstop1h 52m

£118

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Tue 17/2

19:35-09:30

1 stop13h 55m

San Francisco

Wed 25/2

14:39-20:55

1 stop6h 16m

£119

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Tue 27/1

06:20-14:20

2 stops8h 00m

San Francisco

Thu 29/1

11:30-19:55

2 stops8h 25m

£120

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Mon 2/2

09:00-16:55

2 stops7h 55m

San Francisco

Thu 5/2

13:50-22:05

2 stops8h 15m

£120

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 £95. 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 £135.

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 £1,636. 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 £93. Try not to purchase tickets in the evening because they tend to be around £1,636. 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 £164 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 £129 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 January 2026, prices for Portland to San Francisco flights are approximately 30% 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

Fastest flight time

2h 03m

Direct flights

Every day

Airports in San Francisco

1 airport
The fastest flight from Portland to San Francisco takes 2h 03m
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 03m.

  • 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
5.7
3,060 reviews
Search Frontier flights
Alaska AirlinesPriceFrom £58Free CancellationRating
8.0
11,672 reviews
Search Alaska Airlines flights

  • Alaska Airlines Flights From Portland to San Francisco

    Alaska Airlines flies from Portland to San Francisco around 18 times per week, with 11,672 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 £166 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
Sunnyvale
Santa Clara
Seaside
Big Sur
Rohnert Park
Carmel-by-the-Sea
Campbell
Palo Alto
Santa Cruz
Novato
South San Francisco
Capitola
Aptos
Sausalito
San Bruno
Woodland
Redwood City
Pacific Grove
Burlingame
Mill Valley

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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