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$139+ 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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SFO
Feb 4 — Feb 111
Tue 2/4
Tue 2/11
1 adult, Economy
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Cheap flight deals from Portland to San Francisco Bay Area

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to San Francisco Bay Area (zzXIH). 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 January 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$277
(Delta)

One-way from

$139
(American Airlines)

Popular in

April

Cheapest in

September

Average price

$380
Provider with most accurate pricing for Portland-San Francisco flight deals.
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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. 22% potential increase in price ($147 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in January 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 January 30, 2025.

This Delta deal was found by Cheapflights users on 1/29. 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.
Thu 8/1411:59 amPWM - SFO
1 stop9h 08mDelta
Sun 8/249:30 pmSFO - PWM
1 stop11h 09mDelta
Deal found 1/29$277
This American Airlines deal was found by Cheapflights users on 1/29. 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.
Fri 8/155:18 pmPWM - SFO
1 stop8h 22mAmerican Airlines
Mon 8/2511:19 pmSFO - PWM
1 stop9h 41mAmerican Airlines
Deal found 1/29$308
This Southwest deal was found by Cheapflights users on 1/29. 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 3/31:25 pmPWM - SFO
2 stops13h 20mSouthwest
Thu 3/611:00 amSFO - PWM
2 stops10h 05mSouthwest
Deal found 1/29$338
This Delta deal was found by Cheapflights users on 1/29. 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.
Thu 2/205:34 amPWM - SJC
1 stop9h 34mDelta
Thu 2/279:05 amSJC - PWM
2 stops11h 50mDelta
Deal found 1/29$388
This Sun Country Air deal was found by Cheapflights users on 1/29. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1712:32 pmPWM - SFO
1 stop13h 18mSun Country Air
Sun 8/2411:59 pmSFO - PWM
1 stop8h 41mSun Country Air
Deal found 1/29$395
This Trip.com deal was found by Cheapflights users on 1/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/129:43 pmPWM - SFO
2 stops27h 37mFrontier
Fri 5/1612:11 amSFO - PWM
2 stops17h 18mFrontier
Deal found 1/29$397
This JetBlue deal was found by Cheapflights users on 1/29. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/123:20 pmPWM - SFO
1 stop11h 39mJetBlue
Sat 5/178:00 amSFO - PWM
1 stop10h 57mJetBlue
Deal found 1/29$416
This Southwest deal was found by Cheapflights users on 1/29. 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.
Thu 2/275:35 amPWM - SJC
2 stops12h 50mSouthwest
Sat 3/16:30 amSJC - PWM
2 stops13h 45mSouthwest
Deal found 1/29$429
This United Airlines deal was found by Cheapflights users on 1/29. 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.
Fri 2/213:55 pmPWM - SFO
2 stops20h 35mUnited Airlines
Mon 2/249:12 pmSFO - PWM
1 stop10h 30mUnited Airlines
Deal found 1/29$482
This United Airlines deal was found by Cheapflights users on 1/29. 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.
Thu 2/276:01 amPWM - SJC
3 stops33h 02mUnited Airlines
Sat 3/16:20 amSJC - PWM
2 stops13h 55mUnited Airlines
Deal found 1/29$606
This Mytrip deal was found by Cheapflights users on 1/28. 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.
Fri 2/76:18 pmPWM - SJC
3 stops23h 22mMultiple Airlines
Sat 2/88:02 pmSJC - PWM
3 stops17h 41mMultiple Airlines
Deal found 1/28$612
This American Airlines deal was found by Cheapflights users on 1/28. 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.
Fri 2/77:10 amPWM - SJC
2 stops14h 41mAmerican Airlines
Sat 2/86:00 amSJC - PWM
3 stops11h 11mAmerican Airlines
Deal found 1/28$1,014

Find flights from Portland to San Francisco Bay Area within your budget

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 January 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

Thu 2/20

4:46 pm-11:19 pm

1 stop9h 33m

San Francisco

Thu 2/27

5:55 am-4:03 pm

1 stop7h 08m

$277

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

Fri 2/21

4:13 pm-10:52 pm

1 stop9h 39m

San Francisco

Mon 2/24

10:40 pm-12:24 pm

1 stop10h 44m

$327

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

Mon 3/3

1:25 pm-11:45 pm

2 stops13h 20m

San Francisco

Thu 3/6

11:00 am-12:05 am

2 stops10h 05m

$338

PortlandSan Jose

PWM - SJC

PWMSJC

Portland

Thu 2/20

5:34 am-12:08 pm

1 stop9h 34m

San Jose

Thu 2/27

9:05 am-11:55 pm

2 stops11h 50m

$388

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

Mon 5/12

9:43 pm-10:20 pm

2 stops27h 37m

San Francisco

Fri 5/16

12:11 am-8:29 pm

2 stops17h 18m

$397

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

Mon 5/12

3:20 pm-11:59 pm

1 stop11h 39m

San Francisco

Sat 5/17

8:00 am-9:57 pm

1 stop10h 57m

$416

PortlandSan Jose

PWM - SJC

PWMSJC

Portland

Thu 2/27

5:35 am-3:25 pm

2 stops12h 50m

San Jose

Sat 3/1

6:30 am-11:15 pm

2 stops13h 45m

$429

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

Fri 2/21

6:01 am-12:13 pm

1 stop9h 12m

San Francisco

Mon 2/24

10:55 pm-10:42 am

1 stop8h 47m

$447

PortlandSan Jose

PWM - SJC

PWMSJC

Portland

Thu 2/27

6:01 am-12:03 pm

3 stops33h 02m

San Jose

Sat 3/1

6:20 am-11:15 pm

2 stops13h 55m

$606

PortlandSan Jose

PWM - SJC

PWMSJC

Portland

Thu 5/8

3:58 pm-8:45 am

3 stops19h 47m

San Jose

Mon 5/19

2:55 pm-10:48 pm

3 stops28h 53m

$1,241

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

Showing 1-10 of 25 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.

Travel insights for flights from Portland to San Francisco Bay Area

Get recent, data-driven insights about flights from Portland to San Francisco Bay Area including ideal travel times, pricing trends, and more.

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 $405). 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 January 30, 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 January 30, 2025.
Get a feel of what it's like to fly with Southwest, Alaska Airlines 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.
Southwest
8.1
Very good
4,585 reviews

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
4,585 reviews
Southwest
8.1
Very good
4,585 reviews

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,686 reviews
Southwest
8.1
Very good
4,585 reviews

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,450 reviews
Southwest
8.1
Very good
4,585 reviews

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

JetBlue
7.4
Good
3,153 reviews
Southwest
8.1
Very good
4,585 reviews

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
8,906 reviews
Southwest
8.1
Very good
4,585 reviews

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

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 $139. However, be on the lookout for offers from Sun Country Air and United Airlines, 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 $405). 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 3 airlines flying from Portland to San Francisco Bay Area

Discover the top 3 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 January 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$217Average$501FlexibilityNo cancel feeOn-time71%
DeltaCheapest$255Average$455FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$276Average$644FlexibilityNo cancel feeOn-time69%
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