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Cheap flights from Portland to San Francisco from £46

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 3/12. 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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Find the cheapest flights from Portland to San Francisco

Cheap return flights

Southwest Logo
05:10 - 10:55PDX-SFO
5h 45m1 stop
Southwest Logo
15:50 - 23:45SFO-PDX
7h 55m1 stop
£77Southwest
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Tue, 28 Oct - Wed, 29 Oct
Southwest Logo
05:10 - 10:55PDX-SFO
5h 45m1 stop
Southwest Logo
14:05 - 23:45SFO-PDX
9h 40m2 stops
£80Southwest
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Tue, 28 Oct - Wed, 29 Oct
Hawaiian Airlines Logo
14:30 - 16:21PDX-SFO
1h 51mdirect
Hawaiian Airlines Logo
21:47 - 23:32SFO-PDX
1h 45mdirect
£86Hawaiian Airlines
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Sat, 4 Oct - Mon, 13 Oct
Hawaiian Airlines Logo
15:29 - 17:22PDX-SFO
1h 53mdirect
Hawaiian Airlines Logo
18:59 - 20:50SFO-PDX
1h 51mdirect
£94Hawaiian Airlines
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Fri, 7 Nov - Mon, 10 Nov
Alaska Airlines Logo
11:14 - 17:38PDX-SFO
6h 24m1 stop
Alaska Airlines Logo
18:59 - 20:50SFO-PDX
1h 51mdirect
£97Alaska Airlines
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Wed, 19 Nov - Wed, 19 Nov
Alaska Airlines Logo
11:14 - 17:38PDX-SFO
6h 24m1 stop
Alaska Airlines Logo
18:59 - 20:50SFO-PDX
1h 51mdirect
£101Alaska Airlines
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Sat, 8 Nov - Mon, 8 Dec
United Airlines Logo
15:52 - 17:48PDX-SFO
1h 56mdirect
United Airlines Logo
20:55 - 22:46SFO-PDX
1h 51mdirect
£105United Airlines
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Wed, 24 Dec - Sat, 27 Dec
United Airlines Logo
05:30 - 07:23PDX-SFO
1h 53mdirect
United Airlines Logo
22:40 - 00:28SFO-PDX
1h 48mdirect
£108United Airlines
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Sat, 4 Oct - Sun, 5 Oct
Delta Logo
12:46 - 17:48PDX-SFO
5h 02m1 stop
Delta Logo
05:55 - 11:46SFO-PDX
5h 51m1 stop
£127Delta
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Wed, 19 Nov - Thu, 20 Nov
Delta Logo
17:26 - 22:25PDX-SFO
4h 59m1 stop
Delta Logo
05:55 - 11:46SFO-PDX
5h 51m1 stop
£142Delta
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Sun, 16 Nov - Thu, 20 Nov

Delta flights from Portland to San Francisco

Our best Delta deals on Portland to San Francisco flight tickets
Delta
19 Nov
PDX12:46Portland
5h 02m
1 stop
SFO17:48San Francisco
20 Nov
SFO05:55San Francisco
5h 51m
1 stop
PDX11:46Portland
£127
Find similar
Delta
16 Nov
PDX17:26Portland
4h 59m
1 stop
SFO22:25San Francisco
20 Nov
SFO05:55San Francisco
5h 51m
1 stop
PDX11:46Portland
£142
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Delta
9 Oct
PDX06:29Portland
5h 11m
1 stop
SFO11:40San Francisco
11 Oct
SFO06:00San Francisco
6h 49m
1 stop
PDX12:49Portland
£145
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Alaska Airlines flights from Portland to San Francisco

Our best Alaska Airlines deals on Portland to San Francisco flight tickets
Alaska Airlines
19 Nov
PDX11:14Portland
6h 24m
1 stop
SFO17:38San Francisco
19 Nov
SFO18:59San Francisco
1h 51m
PDX20:50Portland
£97
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Alaska Airlines
8 Nov
PDX11:14Portland
6h 24m
1 stop
SFO17:38San Francisco
8 Dec
SFO18:59San Francisco
1h 51m
PDX20:50Portland
£101
Find similar
Alaska Airlines
3 Oct
PDX07:00Portland
2h 03m
SFO09:03San Francisco
6 Oct
SFO21:48San Francisco
1h 45m
PDX23:33Portland
£109
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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 15 September 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

Tue 28/10

05:10-10:55

1 stop5h 45m

San Francisco

Wed 29/10

15:50-23:45

1 stop7h 55m

£77

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Tue 28/10

05:10-10:55

1 stop5h 45m

San Francisco

Wed 29/10

14:05-23:45

2 stops9h 40m

£80

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Sat 4/10

14:30-16:21

Nonstop1h 51m

San Francisco

Mon 13/10

21:47-23:32

Nonstop1h 45m

£86

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Fri 7/11

15:29-17:22

Nonstop1h 53m

San Francisco

Mon 10/11

18:59-20:50

Nonstop1h 51m

£94

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Wed 19/11

11:14-17:38

1 stop6h 24m

San Francisco

Wed 19/11

18:59-20:50

Nonstop1h 51m

£97

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Sat 8/11

11:14-17:38

1 stop6h 24m

San Francisco

Mon 8/12

18:59-20:50

Nonstop1h 51m

£101

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Wed 24/12

15:52-17:48

Nonstop1h 56m

San Francisco

Sat 27/12

20:55-22:46

Nonstop1h 51m

£105

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Sat 4/10

05:30-07:23

Nonstop1h 53m

San Francisco

Sun 5/10

22:40-00:28

Nonstop1h 48m

£108

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Wed 19/11

12:46-17:48

1 stop5h 02m

San Francisco

Thu 20/11

05:55-11:46

1 stop5h 51m

£127

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Sun 16/11

17:26-22:25

1 stop4h 59m

San Francisco

Thu 20/11

05:55-11:46

1 stop5h 51m

£142

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 £67. If you are unable to visit San Francisco during the month of January, then departing from Portland during the month December is also very affordable. Most momondo users find prices during this month for around £115.

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 Wednesday will generally be more expensive and average around £951. 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 afternoon because they tend to be around £212. 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 £148 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 £117 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.

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

You could potentially save up to 48% on your flight if you consider stops on a Portland to San Francisco flight.

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

As of September 2025, prices for Portland to San Francisco flights are approximately 20% 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

1h 48m

Direct flights

Every day

Airports in San Francisco

1 airport
The fastest flight from Portland to San Francisco takes 1h 48m
Direct flights go from Portland to San Francisco every day.
There is 1 airport near San Francisco: San Francisco (SFO)
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  • 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 £28Free CancellationRating
5.8
3,172 reviews
Search Frontier flights

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
Rohnert Park
Campbell
Sunnyvale
San Ramon
South San Francisco
Capitola
Palo Alto
Millbrae
San Bruno
Sausalito
Santa Cruz
Woodland
Redwood City
Burlingame
Modesto

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.

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