Cheap Flights from Portland to San Francisco from US$55

Frequently Asked Questions

• What are the cheapest flights from Portland to San Francisco (PDX-SFO)?

  Based on Trip.com data, Alaska Airlines offers one-way fares as low as US$55 on Cheapest nonstop routes (e.g. PDX to SFO on Sat, Sep 5), while Alaska Airlines offers Cheapest nonstop round-trips from US$98 departing on Tue, Aug 4 and returning on Wed, Aug 12.

• Which airlines offer direct flights from Portland to San Francisco?

  At the moment, you can catch a nonstop flight from Portland to San Francisco with the following airlines, including: Alaska Airlines United Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

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

  It takes about 1 hour 53 minutes to fly from Portland to San Francisco.

• When is the best time to book flights from Portland to San Francisco?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Portland to San Francisco is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How many flights are there per week from Portland to San Francisco?

  Based on Trip.com data in the past 4 weeks, there is 67 flight per week flying from Portland to San Francisco. You can check the weekly schedule for popular airlines on this route below: Alaska Airlines: S/M/T/W/T/F/S -- AS526 (08:21)

• How can I find the best deals on flights from Portland to San Francisco?

  To find best deals on flights from Portland to San Francisco, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sat, Sep 5, with one-way flights priced at just US$55.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Alaska Airlines.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for San Francisco travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Portland (PDX) to San Francisco (SFO) the cheapest?

  The cheapest months to fly from Portland to San Francisco is August, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Portland to San Francisco on?

  After crunching the numbers on our July flight calendar, it's currently cheapest to fly from Portland to San Francisco on July 22, 2026 with Alaska Airlines, with prices starting at US$97.

• Which airports can I fly to for San Francisco from Portland?

  You can land at any one of the following hubs in San Francisco, with Portland International Airport to San Francisco International Airport (PDX-SFO) is by far the most common option on this route: San Francisco International Airport (SFO).

• Is there any time difference between Portland and San Francisco?

  The time difference between San Francisco and Portland is 0h.

• How do I change or cancel my ticket from Portland to San Francisco?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.