Question 1

How popular is this Portland to San Francisco flight route?

Accepted Answer

Within the past month, 5 users have taken a look at flights from Portland to San Francisco.

Question 2

What are the cheapest airlines flying from Portland to San Francisco round-trip?

Accepted Answer

According to our current data, Alaska Airlines (£101), Hawaiian Airlines (£109), and Delta (£124) offers the cheapest pricing from Portland to San Francisco. Users have found that Alaska Airlines is 28% cheaper than the other options available to this destination.

Question 3

What are the cheapest airlines to fly from Portland to San Francisco one-way?

Accepted Answer

To fly one-way, consider booking your trip with Alaska Airlines, which is currently one of the cheapest options available, starting at £51. Southwest flights start at £62 while deals on United Airlines start at £70 one-way.

Question 4

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

Accepted Answer

The best time to book flights from Portland to San Francisco is 33 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.

Question 5

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

Accepted Answer

Currently, February is the cheapest month in which you can book a flight from Portland to San Francisco (average of £538). Flying from Portland to San Francisco in July is currently the most expensive (average of £803). 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.

Question 6

What is the cheapest day to fly from Portland to San Francisco?

Accepted Answer

Travellers seeking maximum savings on their Portland to San Francisco flight should consider departing on Thursday mornings when fares are most often at their lowest. Wednesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 7

Weekly flight availability from Portland to San Francisco

Accepted Answer

The most flights from PDX to SFO are scheduled on a Thursday (67 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (33 on average).

Question 8

E

Accepted Answer

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.

Question 9

E

Accepted Answer

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

Question 10

What are the cheapest flights from Portland to San Francisco?

Accepted Answer

Looking at all options, your cheapest flight can be booked for £58. While the most popular route (Portland - San Francisco) can be booked for £130 on average our data indicates £165 when flying from Portland to San Francisco.

Question 11

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

Accepted Answer

No one likes to see their flight delayed. When booking a flight from Portland to San Francisco consider choosing SkyWest Airlines (93%), Iberia (91%) or Lufthansa (91%) as they are the most reliable in getting you off to your destination on time.

Question 12

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

Accepted Answer

Leaving on a Wednesday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 2,984% on the overall cost on flights from Portland to San Francisco.

Question 13

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

Accepted Answer

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 34 days in advance, which can save you up to 103% on flights from Portland to San Francisco compared to booking the week you need them. Waiting 34 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at £116. For sooner than that we have options available in the next 3 days from £227.

Question 14

What is the cheapest month to fly from Portland to San Francisco?

Accepted Answer

The best pricing can be found in the month of January. Prices to San Francisco from Portland average £141. You can even find prices in January for less than £141, as users have found deals to San Francisco from as low as £27. The month of March appears to be one of the more expensive times to travel to San Francisco from Portland. Flying in the targeted month can save you up to 60%.

Question 15

What is the cheapest time of day to fly from PDX to SFO?

Accepted Answer

A simple way to save on the total cost of your ticket is to fly from Portland to San Francisco in the morning. If you’re flexible enough to do this you can expect to save up to 78% on your trip compared to booking a flight at midday.

Question 16

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

Accepted Answer

You will need to book a flight from Portland to San Francisco if you want to fly from Portland to San Francisco. At least 2 different airlines have flights from Portland (PDX) to San Francisco (SFO) on a regular basis. There are 42 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 47m.

Question 17

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

Accepted Answer

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

Question 18

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

Accepted Answer

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.

Question 19

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

Accepted Answer

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.

Question 20

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

Accepted Answer

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.

Question 21

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

Accepted Answer

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.

Question 22

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

Accepted Answer

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.

Question 23

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

Accepted Answer

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.

Round-trip from	£101
One-way from	£51
Popular in	March
Cheapest in	January
Average price	£164
Good round-trip deal	£165 or less

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest£28	Average£161	FlexibilityNo cancel fee	On-time62%	Search Frontier flights
Alaska Airlines	Cheapest£58	Average£165	FlexibilityNo cancel fee	On-time75%	Search Alaska Airlines flights

Cheap flights from Portland to San Francisco from £51

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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Portland to San Francisco are usually found in January or August, booked 33 days in advance, depart on a Wednesday or Thursday and return on a Friday

Cheap flight deals from Portland to San Francisco

Round-trip from

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Find flight deals from Portland to San Francisco

Cheapest flights from Portland to San FranciscoExplore 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 12 June 2025.

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 12 June 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portland to San Francisco that are best for you.

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.

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 9 June 2025.

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

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 12 June 2025.

Weekly flight availability from Portland to San Francisco

Explore weekly flight availability from Portland to San Francisco. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 12 June 2025.

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

Reviews of airlines servicing San Francisco

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?

How popular is this Portland to San Francisco flight route?

What are the cheapest airlines flying from Portland to San Francisco round-trip?

What are the cheapest airlines to fly from Portland to San Francisco one-way?

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

What are the cheapest flights from Portland to San Francisco?

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

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

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

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

Travelling to a place near Portland?

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Alternative routes for Portland to San Francisco

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Top 2 airlines flying from Portland to San Francisco

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?

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

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

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

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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 12 June 2025.