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Cheap flights from Portland to San Francisco from £52

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 22/12. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SFO
27 Nov — 4 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Portland to San Francisco are usually found in January or December, booked 62 days in advance, depart on a Thursday or Friday and return on a Tuesday

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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 28 October 2025.

Fri 5/1206:00PDX - SFO
Nonstop1h 50mUnited Airlines
Mon 8/1209:10SFO - PDX
Nonstop1h 53mUnited Airlines
Deal found 27/10£95
Tue 18/1110:40PDX - SFO
Nonstop1h 55mAlaska Airlines
Tue 18/1115:01SFO - PDX
Nonstop1h 49mAlaska Airlines
Deal found 27/10£98
Thu 18/1207:15PDX - SFO
Nonstop2h 02mAlaska Airlines
Wed 31/1207:45SFO - PDX
Nonstop1h 50mAlaska Airlines
Deal found 26/10£103
Thu 18/1207:15PDX - SFO
Nonstop2h 02mAlaska Airlines
Sun 18/114:58SFO - PDX
Nonstop1h 52mAlaska Airlines
Deal found 27/10£110
Mon 17/1117:41PDX - SFO
Nonstop2h 06mAlaska Airlines
Mon 17/1121:49SFO - PDX
Nonstop1h 48mAlaska Airlines
Deal found 27/10£113
Sat 6/1213:34PDX - SFO
1 stop4h 29mAlaska Airlines
Tue 9/1212:22SFO - PDX
1 stop5h 33mAlaska Airlines
Deal found 27/10£117
Thu 4/1214:23PDX - SFO
1 stop4h 33mDelta
Mon 8/1212:25SFO - PDX
1 stop6h 34mDelta
Deal found 27/10£119
Thu 4/1207:15PDX - SFO
2 stops7h 10mSouthwest
Mon 8/1212:15SFO - PDX
1 stop6h 35mSouthwest
Deal found 27/10£122
Wed 24/1215:52PDX - SFO
Nonstop1h 56mUnited Airlines
Sun 28/1220:55SFO - PDX
Nonstop1h 51mUnited Airlines
Deal found 27/10£122
Mon 17/1117:30PDX - SFO
1 stop6h 20mAlaska Airlines
Wed 19/1108:00SFO - PDX
1 stop4h 38mAlaska Airlines
Deal found 27/10£125

Cheap 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 28 October 2025.

Round-trip from

£95

One-way from

£52

Popular in

March

Cheapest in

January

Average price

£149

Good round-trip deal

£204 or less
Alaska Airlines
  • Alaska Airlines
  • 9/12-16/12
  • Nonstop
  • 3h 40m total
  • Portland to San Francisco
Search Deals
United Airlines
  • United Airlines
  • 3/12
  • Nonstop
  • 1h 50m total
  • Portland to San Francisco
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£17 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Portland to San Francisco.
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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 28 October 2025.
Use the filters below to find and compare flights from Portland to San Francisco that are best for you.

Fly from

Portland

Fly to

San Francisco

Route

Depart

Return

Price

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Tue 18/11

10:40-12:35

Nonstop1h 55m

San Francisco

Tue 18/11

15:01-16:50

Nonstop1h 49m

£98

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Mon 9/2

10:33-12:23

Nonstop1h 50m

San Francisco

Wed 11/2

11:36-13:33

Nonstop1h 57m

£103

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Sat 7/2

05:35-07:32

Nonstop1h 57m

San Francisco

Tue 10/2

10:48-12:41

Nonstop1h 53m

£103

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Thu 4/12

16:32-18:27

Nonstop1h 55m

San Francisco

Mon 8/12

11:36-13:30

Nonstop1h 54m

£103

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Sat 7/2

17:51-19:50

Nonstop1h 59m

San Francisco

Tue 10/2

11:36-13:33

Nonstop1h 57m

£103

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Thu 18/12

09:58-12:00

Nonstop2h 02m

San Francisco

Thu 8/1

14:58-16:50

Nonstop1h 52m

£103

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Tue 6/1

13:51-20:17

1 stop6h 26m

San Francisco

Mon 12/1

14:58-16:50

Nonstop1h 52m

£110

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Sat 6/12

10:36-12:29

Nonstop1h 53m

San Francisco

Sun 7/12

08:00-09:50

Nonstop1h 50m

£110

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Wed 10/12

14:37-20:15

1 stop5h 38m

San Francisco

Sat 13/12

18:59-20:50

Nonstop1h 51m

£110

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Sat 7/2

10:33-12:23

Nonstop1h 50m

San Francisco

Sun 8/2

07:57-09:49

Nonstop1h 52m

£110

Flights are sorted by cheapest return flights first.

Deals found on 26/10

Showing 1-10 of 21 results
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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?

Use this chart to determine the optimal time to book a return flight from Portland to San Francisco. Price data was last updated on 24 October 2025.

The best time to book flights from Portland to San Francisco is 62 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 £27). Flying from Portland to San Francisco in March is currently the most expensive (average of £99). 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 28 October 2025.

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 94% on your trip compared to booking a flight in the evening.

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 28 October 2025.
Read through reviews of airlines operating flights from Portland to San Francisco, such as Frontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Frontier
5.8
Fair
3,122 reviews
Check prices

Comfort

5.5

Overall

5.8

Entertainment

4.4

Boarding

6.1

Crew

6.7

Food

4.6

Reviews

1 / 20
2.0
Mediocre

Shawn,Sept 2025

SAN - SFO

The flight was over booked and was unadble to get help with issue. I could not get a refund or rebooked in order to make my trip
Frontier
5.8
Fair
3,122 reviews
Frontier
5.8
Fair
3,122 reviews
Check prices

Comfort

5.5

Overall

5.8

Entertainment

4.4

Boarding

6.1

Crew

6.7

Food

4.6

Reviews

1 / 20
2.0
Mediocre

Shawn,Sept 2025

SAN - SFO

The flight was over booked and was unadble to get help with issue. I could not get a refund or rebooked in order to make my trip

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 37 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 50m.

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

    Within the past month, 17 users have taken a look at flights from Portland to San Francisco.

  • 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 50m. Fly via Alaska Airlines or Hawaiian Airlines to get the fastest option. Portland and San Francisco are separated by a distance of 550 mi. Most flights are nonstop.

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

    According to our current data, Frontier (£29), offers the cheapest pricing from Portland to San Francisco. Users have found that Frontier is 81% 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 Frontier (100%), Iberia (93%) or Air China (89%) 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 £204. While the most popular route (Portland - San Francisco) can be booked for £133 on average, our data indicates £1,650 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 £27). Flying from Portland to San Francisco in March is currently the most expensive (average of £99). 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
Newark
South San Francisco
Bodega Bay
Pacific Grove

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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.
Portland to Las Vegas flights
Portland to Los Angeles flights

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 28 October 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest£29Average£94FlexibilityNo cancel feeOn-time62%
Search Frontier 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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