Cheap flights from Portland to San Francisco (PWM - SFO) from $98

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 9/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
PWM — SFO
mai 5 — mai 121

The best prices from Portland to San Francisco are usually found in January or October, booked 66 days in advance, depart on a Thursday or Wednesday and return on a Tuesday

Cheap flight deals from Portland to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to San Francisco (SFO). 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 avril 30, 2024.

Popular in

June

Cheapest in

January

Round-trip from

$268

One-way from

$170
High demand for flights, 23% potential price rise
Best time to find cheap flights, 37% potential price drop
From Portland to San Francisco
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 Sunday 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 35 days before your planned departure. Booking around this time can save you about 127% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $400 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $715.

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

January can be a great time to fly to San Francisco from Portland, Maine with a flight ticket averaging about $515. Cheapflights users have found deals in the month of January for as cheap as $194. The most expensive prices can be found in the month of June.

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

Unlike in the evening, when flights are generally more expensive, you can save up to 34% on flights from Portland, Maine to San Francisco by exploring options for tickets in the afternoon.

Cheap Sun Country Air flights from Portland to San Francisco

Explore cheap flight options specifically provided by Sun Country Air for the route between Portland and San Francisco. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,948,547 searches. Data last updated avril 30, 2024.
Check out some of the cheapest Sun Country Air flights we've come across from Portland to San Francisco. Come back soon if you're not finding the exact deal you're looking for.
dim. 6/301:09 pmPWM - SFO
1 stop23h 29mSun Country Air
mer. 7/35:30 pmSFO - PWM
1 stop15h 25mSun Country Air
Deal found 4/29$465
dim. 7/141:27 pmPWM - SFO
1 stop21h 44mSun Country Air
mer. 7/316:20 pmSFO - PWM
1 stop15h 35mSun Country Air
Deal found 4/29$505
ven. 8/21:40 pmPWM - SFO
1 stop12h 16mSun Country Air
sam. 8/1011:59 pmSFO - PWM
1 stop9h 22mSun Country Air
Deal found 4/29$515

Cheap Delta flights from Portland to San Francisco

Explore cheap flight options specifically provided by Delta for the route between Portland and San Francisco. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,948,547 searches. Data last updated avril 30, 2024.
Take a gander at the lowest prices we've found on Delta flights from Portland to San Francisco. Check back soon if you're not seeing flights that suit your needs.
mer. 9/114:55 pmPWM - SFO
1 stop8h 43mDelta
lun. 9/1612:20 amSFO - PWM
1 stop7h 23mDelta
Deal found 4/29$256
mer. 9/116:05 amPWM - SFO
1 stop11h 13mDelta
mar. 9/178:30 amSFO - PWM
2 stops12h 08mDelta
Deal found 4/29$261
jeu. 9/55:03 pmPWM - SFO
1 stop8h 46mDelta
sam. 9/711:40 amSFO - PWM
1 stop8h 59mDelta
Deal found 4/29$266
mer. 9/116:05 amPWM - SFO
1 stop11h 13mDelta
ven. 9/1312:20 amSFO - PWM
1 stop7h 23mDelta
Deal found 4/29$346
jeu. 9/122:35 pmPWM - SFO
2 stops11h 51mDelta
lun. 9/1612:20 amSFO - PWM
1 stop7h 23mDelta
Deal found 4/29$351
jeu. 9/122:35 pmPWM - SFO
2 stops11h 51mDelta
mar. 9/178:30 amSFO - PWM
2 stops12h 08mDelta
Deal found 4/29$356
mar. 9/106:05 amPWM - SFO
2 stops13h 42mDelta
sam. 9/2812:20 amSFO - PWM
1 stop7h 23mDelta
Deal found 4/29$371
jeu. 9/55:03 pmPWM - SFO
2 stops9h 30mDelta
sam. 9/711:40 amSFO - PWM
1 stop8h 59mDelta
Deal found 4/28$411
mer. 9/116:05 amPWM - SFO
2 stops13h 42mDelta
dim. 9/1512:20 amSFO - PWM
2 stops11h 39mDelta
Deal found 4/29$416

Cheap Portland to San Francisco flights in April & May 2024

Find cheap flight options from Portland to San Francisco specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,948,547 searches. Prices were last updated on avril 30, 2024.
These are some of the best deals we've found on flights to San Francisco in 2024 at this time. For more flight deals, be sure to check back very soon.
mer. 5/292:51 pmPWM - SFO
2 stops11h 53mDelta
mer. 6/56:00 amSFO - PWM
2 stops14h 44mDelta
Deal found 4/29$446
mer. 5/156:30 pmPWM - SFO
1 stop9h 34mUnited Airlines
mar. 5/219:04 pmSFO - PWM
2 stops10h 58mUnited Airlines
Deal found 4/29$492
mer. 5/296:03 amPWM - SFO
2 stops10h 47mAmerican Airlines
mer. 6/56:00 amSFO - PWM
1 stop13h 43mAmerican Airlines
Deal found 4/29$495
mer. 5/151:37 pmPWM - SFO
2 stops13h 40mUnited Airlines
mar. 5/219:04 pmSFO - PWM
2 stops10h 58mUnited Airlines
Deal found 4/29$528
mer. 5/156:30 pmPWM - SFO
1 stop9h 34mUnited Airlines
mar. 5/219:04 pmSFO - PWM
1 stop10h 40mUnited Airlines
Deal found 4/29$547
ven. 5/176:30 pmPWM - SFO
1 stop9h 34mUnited Airlines
lun. 5/209:04 pmSFO - PWM
2 stops10h 58mUnited Airlines
Deal found 4/29$552
jeu. 5/233:41 pmPWM - SFO
2 stops12h 09mAmerican Airlines
lun. 5/279:51 pmSFO - PWM
1 stop10h 56mAmerican Airlines
Deal found 4/29$575
jeu. 5/233:41 pmPWM - SFO
2 stops12h 09mAmerican Airlines
lun. 9/211:00 amSFO - PWM
2 stops10h 40mAmerican Airlines
Deal found 4/29$580
mer. 5/2912:21 pmPWM - SFO
1 stop10h 28mAmerican Airlines
mer. 6/56:00 amSFO - PWM
1 stop13h 43mAmerican Airlines
Deal found 4/29$584

Portland to San Francisco 2024 flight deals

Discover exclusive flight deals for travel between Portland and San Francisco in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,948,547 searches. Data last updated avril 30, 2024.
These are some of the best deals we've found on flights to San Francisco in 2024 at this time. For more flight deals, be sure to check back very soon.
mer. 9/117:25 pmPWM - SFO
1 stop8h 27mUnited Airlines
lun. 9/1611:05 pmSFO - PWM
1 stop8h 26mUnited Airlines
Deal found 4/29$236
mer. 9/114:55 pmPWM - SFO
1 stop8h 43mDelta
mar. 9/1711:35 amSFO - PWM
1 stop8h 31mDelta
Deal found 4/29$256
mer. 9/116:05 amPWM - SFO
2 stops13h 42mDelta
mar. 9/1711:35 amSFO - PWM
1 stop8h 31mDelta
Deal found 4/29$261
mer. 9/115:13 pmPWM - SFO
1 stop8h 35mAmerican Airlines
lun. 9/1610:32 pmSFO - PWM
1 stop9h 52mAmerican Airlines
Deal found 4/29$264
jeu. 9/55:03 pmPWM - SFO
1 stop8h 46mDelta
sam. 9/711:40 amSFO - PWM
1 stop8h 59mDelta
Deal found 4/29$266
mer. 9/115:13 pmPWM - SFO
2 stops9h 51mAmerican Airlines
lun. 9/1610:32 pmSFO - PWM
1 stop9h 52mAmerican Airlines
Deal found 4/29$269
jeu. 9/124:50 pmPWM - SFO
1 stop9h 54mUnited Airlines
mar. 9/1710:35 pmSFO - PWM
1 stop9h 56mUnited Airlines
Deal found 4/29$272
mer. 9/117:40 amPWM - SFO
1 stop9h 35mJetBlue
mar. 9/177:00 amSFO - PWM
1 stop11h 28mJetBlue
Deal found 4/29$275
jeu. 9/126:48 amPWM - SFO
1 stop11h 36mAmerican Airlines
sam. 9/211:47 pmSFO - PWM
1 stop7h 55mAmerican Airlines
Deal found 4/29$283

One-way flights to San Francisco from Portland

Search for one-way flight options from Portland to San Francisco. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,948,547 searches. Data last updated avril 30, 2024.
Some of the best available deals we've found on one-way flights from Portland to San Francisco. Users in need of a round-trip flight from Portland to San Francisco instead should update the search form at the top of page.
mer. 9/115:13 pmPWM - SFO
1 stop8h 35mAmerican Airlines
Deal found 4/29$98
mer. 9/115:13 pmPWM - SFO
2 stops9h 51mAmerican Airlines
Deal found 4/29$103
mer. 8/214:08 pmPWM - SFO
2 stops11h 17mAmerican Airlines
Deal found 4/29$104
mer. 8/215:30 amPWM - SFO
1 stop8h 29mUnited Airlines
Deal found 4/29$118
ven. 8/306:05 amPWM - SFO
2 stops13h 36mDelta
Deal found 4/29$133
ven. 8/3012:59 pmPWM - SFO
1 stop10h 54mAmerican Airlines
Deal found 4/29$167
mer. 6/52:24 pmPWM - SFO
1 stop12h 34mJetBlue
Deal found 4/29$170
dim. 7/211:27 pmPWM - SFO
1 stop21h 44mSun Country Air
Deal found 4/28$198
mer. 6/55:00 amPWM - SFO
2 stops10h 32mDelta
Deal found 4/29$228

Find flights from Portland to San Francisco within your budget

Customize your flight search to find flights from Portland to San Francisco 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 2,948,547 searches. Data last updated avril 30, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$236 - $465

Route

Depart

Return

Price

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

mer. 9/11

1 stop8h 27m

San Francisco

lun. 9/16

1 stop8h 26m

$236

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

mer. 9/11

1 stop8h 43m

San Francisco

lun. 9/16

1 stop7h 23m

$256

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

mer. 9/11

1 stop11h 13m

San Francisco

mar. 9/17

2 stops12h 08m

$261

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

mer. 9/11

1 stop8h 35m

San Francisco

lun. 9/16

1 stop9h 52m

$264

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

jeu. 9/5

1 stop8h 46m

San Francisco

sam. 9/7

1 stop8h 59m

$266

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

mer. 9/11

2 stops9h 51m

San Francisco

lun. 9/16

1 stop9h 52m

$269

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

jeu. 9/12

1 stop9h 54m

San Francisco

mar. 9/17

1 stop9h 56m

$272

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

mer. 9/11

1 stop9h 35m

San Francisco

mar. 9/17

1 stop11h 28m

$275

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

dim. 6/30

1 stop23h 29m

San Francisco

mer. 7/3

1 stop15h 25m

$465

Flights are sorted by cheapest first

Deals found on 4/29

When is the best time to book a flight from Portland, Maine to San Francisco?

Use this chart to determine the optimal time to book a round-trip flight from Portland to San Francisco. Price data was last updated on January 28, 2024.
The best time to book flights from Portland, Maine to San Francisco is 66 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.
Search Deals

When is the cheapest time to fly from Portland, Maine to San Francisco?

Use this chart to determine the cheapest time to fly round-trip from Portland to San Francisco. Price data was last updated on April 28, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Portland, Maine to San Francisco flight should consider departing on Thursday afternoons when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to San Francisco by month

Plan your trip from Portland to San Francisco by taking into account the cheapest months to travel. The average price of a one-way flight from Portland to San Francisco is currently $147 while a round-trip flight costs $285. Price data was last updated on April 21, 2024.

Currently, September is the cheapest month in which you can book a flight from Portland, Maine to San Francisco (average of $268). Flying from Portland, Maine to San Francisco in June is currently the most expensive (average of $384). 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.

January

$274

February

$281

March

$330

April

$306

May

$310

June

$384

July

$368

August

$298

September

$268

October

$268

November

$287

December

$268

Temperature and rainfall in San Francisco by month

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

SFO

Temperature

51.8 - 62.6 °F

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. 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 San Francisco. Reviews last updated avril 30, 2024.
Read reviews from past customers who have flown Sun Country Air, Delta and United Airlines from Portland to San Francisco. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
9,116 reviews

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

7.3

Overall

8.1

Food

7.3

Reviews

1 / 10

We paid $161 for two exit row seats thinking there’d be extra leg room and not be cramped! The price we paid was a rip-off for these seats and the plane was extremely narrow and cramped. The male crew were okay but not super-friendly. When we picked up our luggage at baggage claim, someone ripped my luggage with a knife or blunt object and destroyed it!! I will be filling a claim for this and took pictures. I heard great reviews about this airline but am disappointed.

8.1
Very good
9,116 reviews
8.1
Very good
9,116 reviews

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

7.3

Overall

8.1

Food

7.3

Reviews

1 / 10

We paid $161 for two exit row seats thinking there’d be extra leg room and not be cramped! The price we paid was a rip-off for these seats and the plane was extremely narrow and cramped. The male crew were okay but not super-friendly. When we picked up our luggage at baggage claim, someone ripped my luggage with a knife or blunt object and destroyed it!! I will be filling a claim for this and took pictures. I heard great reviews about this airline but am disappointed.

8.1
Very good
10,913 reviews
8.1
Very good
9,116 reviews

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

7.3

Overall

8.1

Food

7.3

Reviews

1 / 10

We paid $161 for two exit row seats thinking there’d be extra leg room and not be cramped! The price we paid was a rip-off for these seats and the plane was extremely narrow and cramped. The male crew were okay but not super-friendly. When we picked up our luggage at baggage claim, someone ripped my luggage with a knife or blunt object and destroyed it!! I will be filling a claim for this and took pictures. I heard great reviews about this airline but am disappointed.

7.6
Good
4,575 reviews
8.1
Very good
9,116 reviews

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

7.3

Overall

8.1

Food

7.3

Reviews

1 / 10

We paid $161 for two exit row seats thinking there’d be extra leg room and not be cramped! The price we paid was a rip-off for these seats and the plane was extremely narrow and cramped. The male crew were okay but not super-friendly. When we picked up our luggage at baggage claim, someone ripped my luggage with a knife or blunt object and destroyed it!! I will be filling a claim for this and took pictures. I heard great reviews about this airline but am disappointed.

7.6
Good
2,972 reviews
8.1
Very good
9,116 reviews

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

7.3

Overall

8.1

Food

7.3

Reviews

1 / 10

We paid $161 for two exit row seats thinking there’d be extra leg room and not be cramped! The price we paid was a rip-off for these seats and the plane was extremely narrow and cramped. The male crew were okay but not super-friendly. When we picked up our luggage at baggage claim, someone ripped my luggage with a knife or blunt object and destroyed it!! I will be filling a claim for this and took pictures. I heard great reviews about this airline but am disappointed.

7.4
Good
11,202 reviews
8.1
Very good
9,116 reviews

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

7.3

Overall

8.1

Food

7.3

Reviews

1 / 10

We paid $161 for two exit row seats thinking there’d be extra leg room and not be cramped! The price we paid was a rip-off for these seats and the plane was extremely narrow and cramped. The male crew were okay but not super-friendly. When we picked up our luggage at baggage claim, someone ripped my luggage with a knife or blunt object and destroyed it!! I will be filling a claim for this and took pictures. I heard great reviews about this airline but am disappointed.

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.
  • 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 United Airlines for just $236, but on average you can expect to pay $307.

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

    United Airlines, at $236, was found to be the cheapest airline from Portland, Maine to San Francisco.Alternate airlines to your destination round-trip include Delta and American Airlines. Users have found that United Airlines is 54% 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 American Airlines ($98), United Airlines ($118), and Delta ($133).

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

  • What does PWM to SFO mean?

    Great question - PWM to SFO just means Portland Airport to San Francisco Airport. Now you’ll know what these unique codes when you look for flights!

  • Can I find deals for flights from Portland to San Francisco that include extra baggage allowance?

    The amount of baggage you can bring on your Portland to San Francisco flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Portland to San Francisco with specific airlines?

    Yes, Cheapflights allows you to browse and filter Portland to San Francisco flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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 vacation 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.

  • Can I find deals for flights from Portland to San Francisco that allow pets onboard?

    Many airlines flying from Portland to San Francisco offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Portland to San Francisco?

    Yes, you can often find last-minute deals on Portland to San Francisco flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Portland, Maine to San Francisco flight deals updated?

    The Portland, Maine to San Francisco flight deals you see on this page were last updated on 4/29.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Portland to San Francisco

Discover the top 4 airlines that operate flights from Portland to San Francisco. 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 2,948,547 searches. Data last updated avril 30, 2024.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$208Average$373FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
American AirlinesCheapest$233Average$488FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$256Average$525FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$258Average$609FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers 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?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to San Francisco from Portland today with Cheapflights!

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?

Need flexible booking options for your flight to San Francisco from Portland? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights offers price alerts on Portland to San Francisco flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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