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San Francisco Bay Area

$109+ Cheap flights from Portland, ME (PWM) to San Francisco Bay Area

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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SFO
Apr 8 — Apr 151
Tue 4/8
Tue 4/15
1 adult, Economy
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Cheap flight deals from Portland to San Francisco Bay Area

Keep the following information in mind while searching for Portland to San Francisco Bay Area flight deals. Data was last updated April 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$217
(American Airlines)

One-way from

$109
(American Airlines)

Popular in

June

Cheapest in

February

Average price

$628
Provider with most accurate pricing for Portland-San Francisco flight deals.
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Provider most trusted by Cheapflights users for Portland-San Francisco flights.
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From Portland to San Francisco Bay Area
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One-way flight from Portland to San Francisco Bay Area
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Highest demand for flights based on searches. 17% potential increase in price ($106 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Portland to San Francisco Bay Area

Cheapest flights from Portland to San Francisco Bay Area
Explore the most affordable flight options available from Portland to San Francisco Bay Area. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 3, 2025.

This American Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/14:01 pmPWM - SFO
1 stop9h 42mAmerican Airlines
Tue 7/85:23 amSFO - PWM
1 stop8h 47mAmerican Airlines
Deal found 4/1$217
This Mytrip deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/19:29 pmPWM - SFO
1 stop18h 29mFrontier
Wed 5/79:59 pmSFO - PWM
1 stop19h 30mFrontier
Deal found 4/1$246
This United Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/286:45 pmPWM - SFO
1 stop9h 37mUnited Airlines
Mon 5/510:55 pmSFO - PWM
1 stop8h 01mUnited Airlines
Deal found 4/1$277
This Delta deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/510:00 amPWM - SFO
2 stops11h 50mDelta
Tue 11/119:00 pmSFO - PWM
1 stop9h 32mDelta
Deal found 4/2$282
This Southwest deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/82:00 pmPWM - SFO
2 stops11h 40mSouthwest
Sat 9/139:05 pmSFO - PWM
1 stop9h 35mSouthwest
Deal found 4/2$302
This Delta deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/305:20 amPWM - SJC
1 stop9h 19mDelta
Wed 5/712:26 pmSJC - PWM
1 stop8h 33mDelta
Deal found 4/2$313
This United Airlines deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/304:15 pmPWM - SJC
1 stop9h 36mUnited Airlines
Wed 5/76:45 pmSJC - PWM
2 stops12h 11mUnited Airlines
Deal found 4/2$318
This Booking.com deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/159:29 pmPWM - SFO
1 stop18h 46mMultiple Airlines
Wed 5/216:09 pmSFO - PWM
1 stop14h 32mMultiple Airlines
Deal found 4/1$329
This Alaska Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/241:37 pmPWM - SFO
1 stop11h 04mAlaska Airlines
Fri 11/289:30 amSFO - PWM
2 stops11h 18mAlaska Airlines
Deal found 4/1$704
This JetBlue Airways deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/25:35 pmPWM - SFO
1 stop10h 24mJetBlue
Mon 4/711:44 amSFO - PWM
1 stop8h 44mJetBlue
Deal found 4/2$801
This Mytrip deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/3010:23 amPWM - SJC
3 stops30h 32mMultiple Airlines
Wed 5/74:28 pmSJC - PWM
3 stops23h 59mMultiple Airlines
Deal found 4/2$822

Cheapflights Fare Finder

Customize your flight search to find flights from Portland to San Francisco Bay Area 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 2,558,603 searches. Data last updated April 3, 2025.
Use the filters below to find and compare flights from Portland to San Francisco Bay Area that are best for you.

Fly from

Portland

Fly to

San Francisco Bay Area

Route

Depart

Return

Price

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

Tue 7/1

4:01 pm-10:43 pm

1 stop9h 42m

San Francisco

Tue 7/8

5:23 am-5:10 pm

1 stop8h 47m

$217

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

Thu 5/1

9:29 pm-12:58 pm

1 stop18h 29m

San Francisco

Wed 5/7

9:59 pm-8:29 pm

1 stop19h 30m

$246

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

Mon 4/28

6:45 pm-1:22 am

1 stop9h 37m

San Francisco

Mon 5/5

10:55 pm-9:56 am

1 stop8h 01m

$277

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

Thu 4/24

1:00 pm-10:38 pm

2 stops12h 38m

San Francisco

Wed 4/30

6:10 am-12:42 am

2 stops15h 32m

$287

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

Mon 9/8

2:00 pm-10:40 pm

2 stops11h 40m

San Francisco

Sat 9/13

9:05 pm-9:40 am

1 stop9h 35m

$302

PortlandSan Jose

PWM - SJC

PWMSJC

Portland

Wed 4/30

5:20 am-11:39 am

1 stop9h 19m

San Jose

Wed 5/7

12:26 pm-11:59 pm

1 stop8h 33m

$313

PortlandSan Jose

PWM - SJC

PWMSJC

Portland

Wed 4/30

4:15 pm-10:51 pm

1 stop9h 36m

San Jose

Wed 5/7

6:45 pm-9:56 am

2 stops12h 11m

$318

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

Thu 5/15

9:29 pm-1:15 pm

1 stop18h 46m

San Francisco

Wed 5/21

6:09 pm-11:41 am

1 stop14h 32m

$329

PortlandSan Jose

PWM - SJC

PWMSJC

Portland

Wed 4/30

10:23 am-1:55 pm

3 stops30h 32m

San Jose

Wed 5/7

4:28 pm-7:27 pm

3 stops23h 59m

$822

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

Fri 7/11

6:16 pm-11:39 am

2 stops20h 23m

San Francisco

Mon 7/14

5:50 pm-11:53 am

3 stops39h 03m

$992

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/2

Showing 1-10 of 26 results
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Best time to book a flight from Portland to San Francisco Bay Area

Have a flexible travel schedule? Discover the best time to fly to San Francisco Bay Area from Portland with our price prediction graph.
Estimated round-trip 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 Bay Area

What is the cheapest month to book a flight from Portland, Maine to San Francisco Bay Area?

Currently, January is the cheapest month in which you can book a flight from Portland, Maine to San Francisco Bay Area (average of $276). Flying from Portland, Maine to San Francisco Bay Area in June is currently the most expensive (average of $393). 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 PWM to XIH?

Find hourly flight availability from Portland to San Francisco Bay Area. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 3, 2025.

When flying from Portland, Maine to San Francisco Bay Area, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in San Francisco Bay Area by month

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

In terms of precipitation, rainfall in San Francisco Bay Area ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco Bay Area when rainfall is around 0.0 in.

Temperature in San Francisco Bay Area by month

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

If weather is an important factor for your trip to San Francisco Bay Area, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing San Francisco Bay Area

Get insights into the airlines that provide service to San Francisco Bay Area. 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 Bay Area. Reviews last updated April 3, 2025.
Get a feel of what it's like to fly with Breeze Airways, Southwest and Delta from Portland to San Francisco Bay Area by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Breeze Airways
8.1
Very good
157 reviews

Crew

8.8

Food

6.7

Boarding

8.3

Comfort

8.2

Overall

8.1

Entertainment

6.6

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Breeze Airways
8.1
Very good
157 reviews
Breeze Airways
8.1
Very good
157 reviews

Crew

8.8

Food

6.7

Boarding

8.3

Comfort

8.2

Overall

8.1

Entertainment

6.6

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Southwest
8.0
Very good
4,274 reviews
Breeze Airways
8.1
Very good
157 reviews

Crew

8.8

Food

6.7

Boarding

8.3

Comfort

8.2

Overall

8.1

Entertainment

6.6

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Delta
8.0
Very good
7,897 reviews
Breeze Airways
8.1
Very good
157 reviews

Crew

8.8

Food

6.7

Boarding

8.3

Comfort

8.2

Overall

8.1

Entertainment

6.6

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
United Airlines
7.4
Good
8,619 reviews
Breeze Airways
8.1
Very good
157 reviews

Crew

8.8

Food

6.7

Boarding

8.3

Comfort

8.2

Overall

8.1

Entertainment

6.6

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
JetBlue
7.3
Good
2,920 reviews
Breeze Airways
8.1
Very good
157 reviews

Crew

8.8

Food

6.7

Boarding

8.3

Comfort

8.2

Overall

8.1

Entertainment

6.6

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!

Related info for your journey

Find useful and relevant information for your journey from Portland to San Francisco Bay Area. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Portland to San Francisco Bay Area?

    Most people fly from Portland (PWM) if they book a flight from Portland to San Francisco Bay Area. Portland is conveniently located just 2.9 mi from Portland’s city center.

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

    The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $109. However, be on the lookout for offers from Delta and JetBlue, as they are both options that can get you from Portland, Maine to San Francisco Bay Area for a low price.

  • What are the most popular routes from Portland, Maine to San Francisco Bay Area?

    The most popular route from Portland, Maine to San Francisco Bay Area is Portland - San Francisco. You may also consider Portland - San Jose or Portland - Oakland.

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

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

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

    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 Bay Area.

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

    Yes. Cheapflights offers flight deals from Portland to San Francisco Bay Area 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, Maine to San Francisco Bay Area?

    Currently, January is the cheapest month in which you can book a flight from Portland, Maine to San Francisco Bay Area (average of $276). Flying from Portland, Maine to San Francisco Bay Area in June is currently the most expensive (average of $393). 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

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Alternative routes for Portland to San Francisco Bay Area

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Top 5 airlines flying from Portland to San Francisco Bay Area

Discover the top 5 airlines that operate flights from Portland to San Francisco Bay Area. 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 2,558,603 searches. Data last updated April 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$216Average$463FlexibilityNo cancel feeOn-time71%
DeltaCheapest$256Average$444FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$276Average$509FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$327Average$535FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$366Average$438FlexibilityNo cancel feeOn-time63%

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