San Francisco

Cheap flights from Portland to San Francisco (PWM - SFO)

The best prices from Portland to San Francisco are usually found in June or July, booked 26 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

How to find the cheapest flight from Portland to San Francisco

All the information you need to plan the best PWM to SFO flight in 2022: compare Portland to San Francisco flight prices with the expected peak season, weather and rainfall in San Francisco.

PWM - SFO

Price

$204 - $476

SFO

Temperature

51.8 - 62.6 °F

SFO

Precipitation

0 - 4.4 inches

Popular in

December

High demand for flights, 27% potential price rise

Cheapest in

June

Best time to find cheap flights, 41% potential price drop

Round-trip from

$204

From Portland to San Francisco

One-way from

$197

One-way flight from Portland to San Francisco

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

Users have found that flying from Portland, Maine to San Francisco on a Saturday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

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

To save on the cost of your flight from Portland, Maine to San Francisco, book at least 32 days before your planned departure. Booking around this time can save you about 105% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $412 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $615.

When is the cheapest time to fly from Portland, Maine to San Francisco (PWM - SFO)?

Unlike in the afternoon, when flights are generally more expensive, you can save up to 32% on flights from Portland, Maine to San Francisco by exploring options for tickets in the evening.

Cheap flights from Portland to San Francisco in January, February 2022

The best prices found for PWM to SFO flights for January, February
Jan 29 - Feb 1
PWM

Portland

SFO

San Francisco

2 stops

21h 18m
SFO

San Francisco

PWM

Portland

2 stops

19h 59m
$216

Multiple Airlines

View Deal

Deal found 1/18/22

Feb 5 - Feb 8
PWM

Portland

SFO

San Francisco

1 stop

10h 15m
SFO

San Francisco

PWM

Portland

2 stops

13h 26m
$220

Delta

View Deal

Deal found 1/21/22

Feb 5 - Feb 8
PWM

Portland

SFO

San Francisco

2 stops

15h 03m
SFO

San Francisco

PWM

Portland

2 stops

10h 27m
$225

Delta

View Deal

Deal found 1/21/22

Portland to San Francisco 2022 flight deals

Cheap flights to San Francisco from Portland found for this year
Jan 29 - Feb 1
PWM

Portland

SFO

San Francisco

2 stops

21h 18m
SFO

San Francisco

PWM

Portland

2 stops

19h 59m
$216

Multiple Airlines

View Deal

Deal found 1/18/22

Feb 5 - Feb 8
PWM

Portland

SFO

San Francisco

1 stop

10h 15m
SFO

San Francisco

PWM

Portland

2 stops

13h 26m
$220

Delta

View Deal

Deal found 1/21/22

Feb 5 - Feb 8
PWM

Portland

SFO

San Francisco

2 stops

15h 03m
SFO

San Francisco

PWM

Portland

2 stops

10h 27m
$225

Delta

View Deal

Deal found 1/21/22

Last minute flights from Portland to San Francisco

Late deals on return flights to San Francisco from Portland, departing today and this week
Jan 29 - Feb 1
PWM

Portland

SFO

San Francisco

2 stops

21h 18m
SFO

San Francisco

PWM

Portland

2 stops

19h 59m
$216

Multiple Airlines

View Deal

Deal found 1/18/22

Jan 29 - Feb 3
PWM

Portland

SFO

San Francisco

2 stops

21h 18m
SFO

San Francisco

PWM

Portland

2 stops

16h 09m
$267

Multiple Airlines

View Deal

Deal found 1/18/22

Jan 29 - Feb 2
PWM

Portland

SFO

San Francisco

2 stops

21h 18m
SFO

San Francisco

PWM

Portland

3 stops

17h 44m
$301

Multiple Airlines

View Deal

Deal found 1/18/22

One-way flights to San Francisco from Portland

The cheapest one-way flights from Portland to San Francisco
Feb 1
PWM

Portland

SFO

San Francisco

2 stops

33h 22m
$119

Frontier

View Deal

Deal found 1/19/22

Feb 10
PWM

Portland

SFO

San Francisco

1 stop

9h 36m
$122

American Airlines

View Deal

Deal found 1/21/22

Feb 10
PWM

Portland

SFO

San Francisco

2 stops

17h 00m
$126

American Airlines

View Deal

Deal found 1/21/22

Related info for your journey

Useful info, stats and facts about Portland to San Francisco flights.

Which airlines flying from Portland to San Francisco have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like United Airlines, American Airlines, and Delta flying from Portland to San Francisco have implemented new flexible cancellation policies.

Can I find flights from Portland, Maine to San Francisco for under $300 on Cheapflights?

Yes, there are multiple flights from Portland, Maine to San Francisco for under $300. The cheapest flight booked recently is on American Airlines for just $236, but on average you can expect to pay $250.

Are there last-minute flights available from Portland, Maine to San Francisco for under $300?

There are currently 20+ open flights from Portland, Maine to San Francisco within the next 7 days for less than $300.

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

American Airlines, at $236, was found to be the cheapest airline from Portland, Maine to San Francisco.Alternate airlines to your destination round-trip include United Airlines and Delta. Users have found that American Airlines is 32% cheaper than the other options available to this destination.

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

The cheapest airlines for a one-way flight from Portland, Maine to San Francisco are Frontier ($119), American Airlines ($122), and United Airlines ($153).

What are the most popular airlines that fly from Portland, Maine to San Francisco?

When booking a flight from Portland, Maine to San Francisco, you may want to consider flying on Major Airline, American Airlines or JetBlue as they are the most popular for this route.

What are the cheapest flights from Portland, Maine to San Francisco?

Looking at all options, your cheapest flight can be booked for $131. While the most popular route (Portland - San Francisco) can be booked for $230 on average our data indicates $338 when flying from Portland, Maine to San Francisco.

Can I fly to San Francisco from Portland right now?

Information is based on travel restrictions for travel to San Francisco within the United States

Most visitors from Portland need to provide a negative COVID-19 test result and/or quarantine to enter San Francisco.

COVID-19 testing requirements
Visitors from Portland must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 24 hours before departing to San Francisco.

Quarantine requirements
Visitors from Portland are not required to quarantine after entering San Francisco.

Can I fly back to Portland from San Francisco?

Returning to Portland from San Francisco

COVID-19 testing requirements
Visitors from San Francisco must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 24 hours before departing to Portland.

Quarantine requirements
Visitors from San Francisco are not required to quarantine after entering Portland.

Alternative routes for Portland to San Francisco

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

Top 5 airlines flying from Portland to San Francisco

The chart below displays the airlines Cheapflights users traveling from Portland to San Francisco choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
Frontier
Cheapest$99
Average$233
FlexibilityNo cancel fee
On-time62%
COVID-19 safety
Delta
Cheapest$147
Average$403
FlexibilityNo cancel fee
On-timeN/A
COVID-19 safety
American Airlines
Cheapest$154
Average$398
FlexibilityNo cancel fee
On-time71%
COVID-19 safety
United Airlines
Cheapest$162
Average$446
FlexibilityNo cancel fee
On-time69%
COVID-19 safety
JetBlue
Cheapest$163
Average$387
FlexibilityNo cancel fee
On-time62%
COVID-19 safety