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Cheap flights from San Francisco to Portland from £66

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 28/5. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — PDX
29 May — 5 Jun1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from San Francisco to Portland are usually found in September or January, booked 72 days in advance, depart on a Friday or Tuesday and return on a Friday

Cheap flight deals from San Francisco to Portland

Enter your travel dates to find the best prices.

Cheapest flights from San Francisco to Portland
Explore the most affordable flight options available from San Francisco to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 April 2026.

Tue 26/513:45
SFO
-
PDX
2 stops9h 15m
Southwest
Tue 2/617:00
PDX
-
SFO
1 stop6h 15m
Southwest
Deal found 27/4£120
Wed 20/522:35
SFO
-
PDX
Nonstop1h 58m
United Airlines
Mon 25/507:00
PDX
-
SFO
Nonstop1h 55m
United Airlines
Deal found 26/4£121
Tue 9/612:10
SFO
-
PDX
2 stops7h 00m
Southwest
Wed 10/607:50
PDX
-
SFO
2 stops6h 25m
Southwest
Deal found 24/4£124
Sat 23/518:58
SFO
-
PDX
Nonstop1h 52m
Alaska Airlines
Wed 27/507:00
PDX
-
SFO
Nonstop2h 01m
Alaska Airlines
Deal found 29/4£127
Wed 17/610:30
SFO
-
PDX
2 stops11h 40m
Southwest
Wed 1/707:50
PDX
-
SFO
2 stops6h 25m
Southwest
Deal found 25/4£128
Wed 27/522:52
SFO
-
PDX
Nonstop1h 58m
United Airlines
Wed 3/605:15
PDX
-
SFO
Nonstop1h 46m
United Airlines
Deal found 27/4£129
Wed 17/622:52
SFO
-
PDX
Nonstop1h 58m
United Airlines
Wed 1/718:03
PDX
-
SFO
Nonstop1h 50m
United Airlines
Deal found 27/4£130
Wed 3/605:55
SFO
-
PDX
1 stop4h 43m
Delta
Mon 8/617:50
PDX
-
SFO
1 stop6h 16m
Delta
Deal found 28/4£131
Wed 20/522:35
SFO
-
PDX
Nonstop1h 58m
United Airlines
Tue 26/508:35
PDX
-
SFO
Nonstop1h 50m
United Airlines
Deal found 29/4£133
Tue 26/513:45
SFO
-
PDX
2 stops9h 15m
Southwest
Thu 28/514:50
PDX
-
SFO
1 stop8h 15m
Southwest
Deal found 27/4£135
Sat 6/620:50
SFO
-
PDX
Nonstop1h 58m
United Airlines
Tue 9/618:03
PDX
-
SFO
Nonstop1h 50m
United Airlines
Deal found 29/4£136

Find flight deals from San Francisco to Portland

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Portland (PDX). 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 29 April 2026.

Round-trip from

£120

One-way from

£66

Popular in

March

Cheapest in

September

Average price

£201
Southwest
  • Southwest
  • 10/6-17/6
  • 3 total stops
  • 12h 20m total
  • San Francisco to Portland
Search Deals
United Airlines
  • United Airlines
  • 23/5
  • Nonstop
  • 1h 58m total
  • San Francisco to Portland
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£13 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from San Francisco to Portland 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 29 April 2026.
Use the filters below to find and compare flights from San Francisco to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San FranciscoPortland

SFO - PDX

SFOPDX

San Francisco

Wed 27/5

13:45-23:00

2 stops9h 15m

Portland

Wed 3/6

11:45-18:30

1 stop6h 45m

£120

San FranciscoPortland

SFO - PDX

SFOPDX

San Francisco

Sat 16/5

05:00-12:00

1 stop7h 00m

Portland

Wed 20/5

12:45-19:55

2 stops7h 10m

£135

San FranciscoPortland

SFO - PDX

SFOPDX

San Francisco

Mon 1/6

17:40-00:55

1 stop7h 15m

Portland

Sat 6/6

16:25-23:30

1 stop7h 05m

£146

San FranciscoPortland

SFO - PDX

SFOPDX

San Francisco

Tue 26/5

07:40-09:29

Nonstop1h 49m

Portland

Wed 27/5

10:40-12:41

Nonstop2h 01m

£153

San FranciscoPortland

SFO - PDX

SFOPDX

San Francisco

Tue 2/6

11:45-16:58

1 stop5h 13m

Portland

Tue 2/6

17:59-19:56

Nonstop1h 57m

£154

San FranciscoPortland

SFO - PDX

SFOPDX

San Francisco

Thu 6/8

11:30-18:25

2 stops6h 55m

Portland

Tue 11/8

07:50-14:40

2 stops6h 50m

£168

San FranciscoPortland

SFO - PDX

SFOPDX

San Francisco

Thu 28/5

15:00-00:25

2 stops9h 25m

Portland

Sat 30/5

11:15-18:35

1 stop7h 20m

£179

San FranciscoPortland

SFO - PDX

SFOPDX

San Francisco

Thu 21/5

07:40-09:29

Nonstop1h 49m

Portland

Sun 24/5

10:40-12:41

Nonstop2h 01m

£183

San FranciscoPortland

SFO - PDX

SFOPDX

San Francisco

Thu 28/5

15:00-00:25

2 stops9h 25m

Portland

Thu 4/6

05:00-15:10

2 stops10h 10m

£187

San FranciscoPortland

SFO - PDX

SFOPDX

San Francisco

Wed 20/5

07:40-13:50

1 stop6h 10m

Portland

Thu 21/5

06:00-14:35

2 stops8h 35m

£190

Flights are sorted by cheapest return flights first.

Deals found on 27/4

Showing 1-10 of 24 resultsSorted by cheapest first
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Best time to book a flight from San Francisco to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from San Francisco 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 San Francisco to Portland

How far ahead should I book a flight from San Francisco to Portland?

The best time to book flights from San Francisco to Portland is 71 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 San Francisco to Portland?

Currently, September is the cheapest month in which you can book a flight from San Francisco to Portland (average of £173). Flying from San Francisco to Portland in March is currently the most expensive (average of £249). 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 SFO to PDX?

Find hourly flight availability from San Francisco to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 April 2026.

When flying from San Francisco to Portland, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 77% versus a flight at midday.

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

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated 29 April 2026.
Get a feel of what it's like to fly with Frontier from San Francisco to Portland by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Frontier
5.7
Fair
2,970 reviews
Check prices

Boarding

5.9

Food

4.5

Crew

6.6

Overall

5.7

Entertainment

4.3

Comfort

5.4

Reviews

1 / 20
2.0
Mediocre

Prodipto,Mar 2026

PHL - BNA

Delay at the beginning in Philly and then huge delay just sitting on the tarmac after landing, for one hour in Nashville
Frontier
5.7
Fair
2,970 reviews
Frontier
5.7
Fair
2,970 reviews
Check prices

Boarding

5.9

Food

4.5

Crew

6.6

Overall

5.7

Entertainment

4.3

Comfort

5.4

Reviews

1 / 20
2.0
Mediocre

Prodipto,Mar 2026

PHL - BNA

Delay at the beginning in Philly and then huge delay just sitting on the tarmac after landing, for one hour in Nashville

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Portland. 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 San Francisco to Portland?

    Portland is the airport most travelers will use when flying to Portland from San Francisco. Booking flights from San Francisco (SFO) to Portland (PDX) should be relatively easy as there are 15 daily flights to Portland from 1 airline. 6h 53m is how long a flight from San Francisco to Portland will take if you book a nonstop flight.

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

    Within the past month, 6 users have taken a look at flights from San Francisco to Portland.

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

    Southwest, Delta, and Alaska Airlines can get you from San Francisco to Portland in just under 1h 50m. Your travel time can differ by up to 5h 25m. San Francisco and Portland 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 San Francisco to Portland round-trip?

    Cheapflights users have booked flights from San Francisco to Portland round-trip from £105. You may be able to fly from San Francisco to Portland for 47% less than the average price by searching for this airline.

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

    Before booking your flight to Portland from San Francisco, check out the most reliable airlines to get you to your destination on time: Cathay Pacific (90%), Qatar Airways (89%), Japan Airlines( 89%).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Francisco to Portland 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 San Francisco to Portland?

    Currently, September is the cheapest month in which you can book a flight from San Francisco to Portland (average of £173). Flying from San Francisco to Portland in March is currently the most expensive (average of £249). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San Francisco to Portland

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Portland flights
Los Angeles to Eugene flights
San Diego to Portland flights

Top airline flying from San Francisco to Portland

Discover the top airline that operate flights from San Francisco to Portland. 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 29 April 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest£105Average£116FlexibilityNo 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 San Francisco to Portland?

Deals for San Francisco to Portland 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 San Francisco to Portland?

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 San Francisco to Portland.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from San Francisco to Portland, users can toggle the no change fees filter when performing a flight search.

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

Yes! Start tracking prices for San Francisco to Portland 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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