What is the most punctual flight time for Portland to San Francisco flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Saturday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Portland to San Francisco flights?

Over the past year, United Airlines have had the lowest number of delays on this route, with just 25% of flights being delayed.

How often are flights from Portland to San Francisco delayed?

About 26% of weekly flights between Portland and San Francisco have experienced delays in the past year, with the average delay time being 113 minutes.

How popular is this Portland to San Francisco flight route?

Within the past month, 8 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 53m. Fly via United Airlines, Southwest, or Alaska Airlines 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 (£122), offers the cheapest pricing from Portland to San Francisco. Users have found that Alaska Airlines is 36% cheaper than the other options available to this destination.

Weekly flight availability from Portland to San Francisco

The most flights from PDX to SFO are scheduled on a Sunday (69 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (29 on average).

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.

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).

What are the cheapest flights from Portland to San Francisco?

Looking at all options, your cheapest flight can be booked for £1,469. While the most popular route (Portland - San Francisco) can be booked for £160 on average, our data indicates £1,576 when flying from Portland to San Francisco.

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 (84%), Horizon Air (76%) or Alaska Airlines (66%) as they are the most reliable in getting you off to your destination on time.

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 43 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 2h 02m.

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.

£45+ Cheap Flights from Portland to San Francisco

Cheapflights Tip: The best prices from Portland to San Francisco are usually found in January or October, booked 81 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Portland to San Francisco

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

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 6 October 2026.

Thu 29/1013:25 -

Nonstop1h 50m

Thu 5/1112:45 -

Nonstop1h 52m

Deal found 1/10£89

Wed 18/1111:54 -

Nonstop1h 52m

Wed 18/1114:47 -

Nonstop1h 47m

Deal found 5/10£94

Sat 14/1114:50 -

Nonstop1h 54m

Tue 17/1111:41 -

Nonstop1h 49m

Deal found 5/10£98

Tue 3/1105:35 -

Nonstop1h 53m

Tue 10/1116:28 -

Nonstop1h 52m

Deal found 5/10£104

Thu 22/1017:49 -

1 stop6h 07m

Mon 26/1014:15 -

1 stop5h 45m

Deal found 1/10£104

Mon 2/1117:30 -

Nonstop1h 50m

Sat 14/1114:47 -

Nonstop1h 47m

Deal found 5/10£107

Fri 23/1017:48 -

Nonstop1h 59m

Mon 26/1009:03 -

Nonstop1h 49m

Deal found 1/10£109

Mon 2/1117:53 -

Nonstop1h 56m

Thu 12/1107:42 -

Nonstop1h 46m

Deal found 5/10£110

Thu 29/1012:50 -

1 stop7h 15m

Thu 5/1112:30 -

1 stop7h 05m

Deal found 1/10£114

Tue 17/1109:00 -

Nonstop1h 55m

Sun 22/1120:54 -

Nonstop1h 52m

Deal found 5/10£116

Wed 21/1014:53 -

Nonstop1h 54m

Wed 28/1009:03 -

Nonstop1h 49m

Deal found 5/10£117

Find flight deals from Portland to San Francisco

Round-trip from	£89
One-way from	£45
Popular in	March
Cheapest in	January
Average price	£147
Good round-trip deal	£1,469 or less

Alaska Airlines
29/10-2/11
Nonstop
3h 45m total
Portland to San Francisco

Search Deals

United Airlines
14/11-31/12
Nonstop
1h 58m total
Portland to San Francisco

Search Deals

Highest demand for flights based on searches. 3% potential increase in price (£4 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 October 2026

Search Deals

Price to beat on a round-trip flight from Portland to San Francisco.

Search Deals

Cheapflights Fare Finder

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 Portland - SFO San Francisco

PDXSFO

Portland

Thu 31/12

08:31-10:25

Nonstop1h 54m

San Francisco

Wed 31/12

00:00-00:00

Nonstop0h 00m

£45

Fastest return journey

PortlandSan Francisco

PDX Portland - SFO San Francisco

PDXSFO

Portland

Wed 18/11

05:30-07:23

Nonstop1h 53m

San Francisco

Wed 31/12

00:00-00:00

Nonstop0h 00m

£52

PortlandSan Francisco

PDX Portland - SFO San Francisco

PDXSFO

Portland

Mon 2/11

17:53-19:49

Nonstop1h 56m

San Francisco

Wed 31/12

00:00-00:00

Nonstop0h 00m

£55

PortlandSan Francisco

PDX Portland - SFO San Francisco

PDXSFO

Portland

Wed 4/11

10:15-16:15

1 stop6h 00m

San Francisco

Wed 31/12

00:00-00:00

Nonstop0h 00m

£60

PortlandSan Francisco

PDX Portland - SFO San Francisco

PDXSFO

Portland

Tue 3/11

13:15-21:25

2 stops8h 10m

San Francisco

Wed 31/12

00:00-00:00

Nonstop0h 00m

£61

PortlandSan Francisco

PDX Portland - SFO San Francisco

PDXSFO

Portland

Tue 3/11

11:25-17:05

1 stop5h 40m

San Francisco

Wed 31/12

00:00-00:00

Nonstop0h 00m

£67

PortlandSan Francisco

PDX Portland - SFO San Francisco

PDXSFO

Portland

Tue 8/12

06:30-14:55

2 stops8h 25m

San Francisco

Wed 31/12

00:00-00:00

Nonstop0h 00m

£70

PortlandSan Francisco

PDX Portland - SFO San Francisco

PDXSFO

Portland

Thu 17/12

17:59-23:43

1 stop5h 44m

San Francisco

Wed 31/12

00:00-00:00

Nonstop0h 00m

£74

PortlandSan Francisco

PDX Portland - SFO San Francisco

PDXSFO

Portland

Sat 17/10

07:10-13:08

1 stop5h 58m

San Francisco

Wed 31/12

00:00-00:00

Nonstop0h 00m

£74

PortlandSan Francisco

PDX Portland - SFO San Francisco

PDXSFO

Portland

Mon 2/11

17:49-23:56

1 stop6h 07m

San Francisco

Wed 31/12

00:00-00:00

Nonstop0h 00m

£74

Flights are sorted by cheapest return flights first.

Deals found on 1/10

Showing 1-10 of 24 resultsSorted by cheapest first

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.

PDX-SFO

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

Prices

Airlines

Delays

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 80 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 £133). Flying from Portland to San Francisco in March is currently the most expensive (average of £232). 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?

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?

Airfare is below average for this route at the moment.

Portland to San Francisco flights typically cost between £104 and £249 in October.
The cheapest return price found within the last 5 days was £89 on Alaska Airlines (29 Oct–2 Nov).

Reviews of airlines servicing San Francisco

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.

Alaska Airlines

7.9

Good

13,021 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.

Alaska Airlines

7.9

Good

13,021 reviews

Alaska Airlines

7.9

Good

13,021 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Chris,Aug 2026

GEG - SFO

Related info for your journey

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 43 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 2h 02m.
How popular is this Portland to San Francisco flight route?
Within the past month, 8 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 53m. Fly via United Airlines, Southwest, or Alaska Airlines 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 (£122), offers the cheapest pricing from Portland to San Francisco. Users have found that Alaska Airlines is 36% 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 (84%), Horizon Air (76%) or Alaska Airlines (66%) 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 £1,469. While the most popular route (Portland - San Francisco) can be booked for £160 on average, our data indicates £1,576 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 £133). Flying from Portland to San Francisco in March is currently the most expensive (average of £232). 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

San Bruno

Santa Cruz

Roseville

Newark

Bodega Bay

Sunnyvale

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to California

Flights by cabin class

Other flight options

Popular flights

San Francisco flight routes

Alternative routes for Portland to San Francisco

Portland to Los Angeles flights

Portland to Las Vegas flights

Top airline flying from Portland to San Francisco

Airline	Cheapest	Average	Flexibility	On-time
Alaska Airlines	Cheapest£122	Average£185	FlexibilityNo cancel fee	On-time75%	Search Alaska Airlines flights

Fly with Cheapflights

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Portland to San Francisco from £45

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap 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 6 October 2026.

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 6 October 2026.

Best flights from Portland to San FranciscoDiscover carefully curated flight deals from Portland to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 6 October 2026.

Discover carefully curated flight deals from Portland to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 6 October 2026.

Direct flights from Portland to San FranciscoExplore direct flight options from Portland to San Francisco based on user searches, and compare prices and availability for your desired travel dates. Data last updated 6 October 2026.

Explore direct flight options from Portland to San Francisco based on user searches, and compare prices and availability for your desired travel dates. Data last updated 6 October 2026.

Last-minute flights from Portland to San FranciscoDiscover last-minute flight deals from Portland to San Francisco. Data last updated 6 October 2026 and is based on user searches.

Discover last-minute flight deals from Portland to San Francisco. Data last updated 6 October 2026 and is based on user searches.

One-way flights from Portland to San FranciscoSearch for one-way flight options from Portland to San Francisco. Find affordable one-way fares based on user searches. Data last updated 6 October 2026.

Search for one-way flight options from Portland to San Francisco. Find affordable one-way fares based on user searches. Data last updated 6 October 2026.

Find flight deals from Portland to San Francisco

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

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

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 80 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?

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

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?

Airfare is below average for this route at the moment.

Portland to San Francisco flights typically cost between £104 and £249 in October.The cheapest return price found within the last 5 days was £89 on Alaska Airlines (29 Oct–2 Nov).

Weekly flight availability from Portland to San Francisco

The most flights from PDX to SFO are scheduled on a Sunday (69 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (29 on average).

How often are flights from Portland to San Francisco delayed?

About 26% of weekly flights between Portland and San Francisco have experienced delays in the past year, with the average delay time being 113 minutes.

What is the most punctual flight time for Portland to San Francisco flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Saturday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Portland to San Francisco flights?

Over the past year, United Airlines have had the lowest number of delays on this route, with just 25% of flights being delayed.

Reviews of airlines servicing San Francisco

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.

Related info for your journey

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

How popular is this Portland to San Francisco flight route?

How long is the flight from Portland to San Francisco?

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

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 San Francisco?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portland to San Francisco

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

Complete your trip

Complete your trip to San Francisco by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to California

Book a non-stop flight to one of these other cities located in California.

Search flights from Portland to San Francisco by cabin class

Find flights from Portland to San Francisco, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Portland and San Francisco flights

Browse other Portland and San Francisco flight options. Last updated on 6 October 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Other flights to San Francisco

Explore flights to San Francisco departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 6 October 2026.

Top airline flying from Portland to San Francisco

Fly with Cheapflights

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?

100% Free

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 6 October 2026.

Best flights from Portland to San Francisco
Discover carefully curated flight deals from Portland to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 6 October 2026.

Direct flights from Portland to San Francisco
Explore direct flight options from Portland to San Francisco based on user searches, and compare prices and availability for your desired travel dates. Data last updated 6 October 2026.

Last-minute flights from Portland to San Francisco
Discover last-minute flight deals from Portland to San Francisco. Data last updated 6 October 2026 and is based on user searches.

One-way flights from Portland to San Francisco
Search for one-way flight options from Portland to San Francisco. Find affordable one-way fares based on user searches. Data last updated 6 October 2026.

Portland to San Francisco flights typically cost between £104 and £249 in October.
The cheapest return price found within the last 5 days was £89 on Alaska Airlines (29 Oct–2 Nov).