Cheap flights from Portland to San Francisco from £82

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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SFO
26 Jul — 2 Aug1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Portland to San Francisco are usually found in January or October, booked 85 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Portland to San Francisco

Enter your travel dates to find the best prices.

Cheapest flights from Portland to San Francisco
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 26 June 2026.

Sat 18/705:25
PDX
-
SFO
1 stop9h 20m
Southwest
Tue 21/710:30
SFO
-
PDX
2 stops11h 40m
Southwest
Deal found 25/6£127
Thu 13/817:54
PDX
-
SFO
1 stop5h 56m
Delta
Tue 18/810:40
SFO
-
PDX
1 stop6h 34m
Delta
Deal found 25/6£128
Wed 29/717:36
PDX
-
SFO
Nonstop1h 54m
Alaska Airlines
Wed 29/722:08
SFO
-
PDX
Nonstop1h 44m
Alaska Airlines
Deal found 24/6£130
Thu 3/910:37
PDX
-
SFO
Nonstop2h 02m
Alaska Airlines
Sun 6/921:02
SFO
-
PDX
Nonstop1h 49m
Alaska Airlines
Deal found 22/6£133
Sat 8/806:00
PDX
-
SFO
1 stop6h 05m
Southwest
Mon 10/806:45
SFO
-
PDX
1 stop5h 20m
Southwest
Deal found 25/6£133
Sat 1/807:15
PDX
-
SFO
Nonstop1h 57m
Alaska Airlines
Tue 4/815:02
SFO
-
PDX
Nonstop1h 45m
Alaska Airlines
Deal found 23/6£134
Wed 19/817:56
PDX
-
SFO
1 stop6h 22m
Multiple Airlines
Sat 22/815:03
SFO
-
PDX
Nonstop1h 47m
Multiple Airlines
Deal found 25/6£135
Mon 31/807:03
PDX
-
SFO
Nonstop2h 04m
Alaska Airlines
Sun 6/914:45
SFO
-
PDX
Nonstop1h 47m
Alaska Airlines
Deal found 21/6£136
Thu 10/910:37
PDX
-
SFO
Nonstop2h 02m
Alaska Airlines
Mon 14/907:23
SFO
-
PDX
Nonstop1h 44m
Alaska Airlines
Deal found 23/6£137
Wed 9/910:37
PDX
-
SFO
Nonstop2h 02m
Alaska Airlines
Tue 15/907:08
SFO
-
PDX
1 stop6h 42m
Alaska Airlines
Deal found 23/6£140
Sat 5/913:10
PDX
-
SFO
2 stops6h 25m
Southwest
Sun 6/911:40
SFO
-
PDX
1 stop10h 35m
Southwest
Deal found 22/6£140
Tue 11/805:50
PDX
-
SFO
2 stops8h 50m
Southwest
Thu 13/811:30
SFO
-
PDX
2 stops6h 55m
Southwest
Deal found 21/6£141

Find flight deals from Portland to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) 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 26 June 2026.

Round-trip from

£127

One-way from

£82

Popular in

March

Cheapest in

January

Average price

£218

Good round-trip deal

£1,473 or less
Southwest
  • Southwest
  • 18/7-21/7
  • 3 total stops
  • 21h 00m total
  • Portland to San Francisco
United Airlines
  • United Airlines
  • 8/9
  • Nonstop
  • 1h 56m total
  • Portland to San Francisco
Highest demand for flights based on searches. 6% potential increase in price (£8 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£4 potential savings vs. average return price).
Average for round-trip flights in June 2026
Price to beat on a round-trip flight from Portland to San Francisco.

Cheapflights 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, Cheapflights users made 858,174 searches. Data last updated 26 June 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

Cheapest return flight

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Thu 8/10

18:15-00:25

1 stop6h 10m

San Francisco

Tue 13/10

10:40-18:55

2 stops8h 15m

£137

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Thu 20/8

07:03-09:07

Nonstop2h 04m

San Francisco

Mon 24/8

07:23-09:07

Nonstop1h 44m

£137

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Thu 3/9

12:40-23:05

1 stop10h 25m

San Francisco

Sun 6/9

06:05-12:40

1 stop6h 35m

£155

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Thu 27/8

13:03-14:56

Nonstop1h 53m

San Francisco

Sun 30/8

20:50-22:45

Nonstop1h 55m

£158

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Tue 20/10

06:35-13:50

2 stops7h 15m

San Francisco

Mon 2/11

06:50-15:00

2 stops8h 10m

£171

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Fri 28/8

16:20-22:50

1 stop6h 30m

San Francisco

Mon 31/8

10:40-19:00

2 stops8h 20m

£177

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Thu 27/8

15:25-23:05

1 stop7h 40m

San Francisco

Sun 30/8

06:00-13:20

2 stops7h 20m

£177
Fastest return journey

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Fri 28/8

05:30-07:21

Nonstop1h 51m

San Francisco

Fri 28/8

20:50-22:45

Nonstop1h 55m

£180

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Fri 7/8

05:30-09:36

1 stop4h 06m

San Francisco

Mon 10/8

06:20-10:42

1 stop4h 22m

£185

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Tue 18/8

07:32-15:14

1 stop7h 42m

San Francisco

Sun 23/8

07:10-08:54

Nonstop1h 44m

£185

Flights are sorted by cheapest return flights first.

Deals found on 23/6

Showing 1-10 of 23 resultsSorted by cheapest first
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2
3

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.
Estimated return 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 to San Francisco?

The best time to book flights from Portland to San Francisco is 84 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 to San Francisco?

Currently, January is the cheapest month in which you can book a flight from Portland to San Francisco (average of £134). Flying from Portland to San Francisco in March is currently the most expensive (average of £229). 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 PDX 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 26 June 2026.

A simple way to save on the total cost of your ticket is to fly from Portland to San Francisco at midday. If you’re flexible enough to do this you can expect to save up to 96% on your trip compared to booking a flight in the evening.

How much does it cost for a return flight from Portland to San Francisco?

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 26 June 2026.
Read through reviews of airlines operating flights from Portland to San Francisco, such as Alaska Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.0

Comfort

7.8

Overall

7.9

Crew

8.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

PDX - SJC

They had no snacks and had to pay for the Wifi.

Entertainment

7.0

Comfort

7.8

Overall

7.9

Crew

8.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

PDX - SJC

They had no snacks and had to pay for the Wifi.

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.
  • What airports do I use to fly from Portland to San Francisco?

    You will need to book a flight from Portland to San Francisco if you want to fly from Portland to San Francisco. At least 1 airline has flights from Portland (PDX) to San Francisco (SFO) on a regular basis. There are 40 flights to San Francisco from the Portland airport per day. If you manage to book one that is nonstop, then you can expect the flight time from PDX to SFO to be around 1h 51m.

  • How popular is this Portland to San Francisco flight route?

  • How long is the flight from Portland to San Francisco?

    There are many flights that can get you from Portland to San Francisco in 1h 51m. Fly via Alaska Airlines, Delta, or Southwest to get the fastest option. Portland and San Francisco are separated by a distance of 550 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What is the cheapest airline to fly from Portland to San Francisco round-trip?

    According to our current data, Alaska Airlines (£123), offers the cheapest pricing from Portland to San Francisco. Users have found that Alaska Airlines is 33% cheaper than the other options available to this destination.

  • What are the most reliable airlines from Portland to San Francisco?

    No one likes to see their flight delayed. When booking a flight from Portland to San Francisco consider choosing SkyWest Airlines (78%), Iberia (68%) or Air China (65%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Portland to San Francisco?

    Looking at all options, your cheapest flight can be booked for £1,473. While the most popular route (Portland - San Francisco) can be booked for £104 on average, our data indicates £1,579 when flying from Portland to San Francisco.

  • Can I find deals for flights from Portland to San Francisco that include hotel bookings?

    Yes. In addition to deals on Portland to San Francisco flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Portland to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to San Francisco.

  • Can I find deals for business class flights from Portland to San Francisco?

    Yes. Cheapflights offers flight deals from Portland to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland to San Francisco?

    Currently, January is the cheapest month in which you can book a flight from Portland to San Francisco (average of £134). Flying from Portland to San Francisco in March is currently the most expensive (average of £229). 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.

See more FAQs

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
San Bruno
Newark
Bodega Bay
South San Francisco
Sunnyvale

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Alternative routes for Portland to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Portland to San Francisco

Discover the top airline 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 858,174 searches. Data last updated 26 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest£123Average£165FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Portland to San Francisco?

Deals for Portland to San Francisco flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Portland to San Francisco?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Portland to San Francisco.

Can Cheapflights find flights from Portland to San Francisco with no change fees?

Yes, we can. To see specific flights from Portland to San Francisco with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Portland to San Francisco become cheaper?

Yes! Start tracking prices for Portland to San Francisco flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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