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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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SFO
ago. 5 — ago. 121
mar. 8/5
mar. 8/12
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 julio 31, 2025.

Round-trip from

$251
(American Airlines)

One-way from

$109
(American Airlines)

Popular in

November

Cheapest in

September

Average price

$509
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. 2% potential increase in price ($11 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in July 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 julio 31, 2025.

This American Airlines deal was found by Cheapflights users on 7/30. 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.
mié. 11/53:53 pmPWM - SFO
1 stop9h 19mAmerican Airlines
mar. 11/116:00 amSFO - PWM
1 stop8h 07mAmerican Airlines
Deal found 7/30$251
This Delta deal was found by Cheapflights users on 7/31. 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.
vie. 9/191:35 pmPWM - SFO
1 stop9h 53mDelta
dom. 9/2112:45 amSFO - PWM
1 stop6h 55mDelta
Deal found 7/31$277
This United Airlines deal was found by Cheapflights users on 7/30. 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.
mar. 9/308:00 amPWM - SFO
1 stop8h 50mUnited Airlines
jue. 10/21:02 pmSFO - PWM
1 stop7h 57mUnited Airlines
Deal found 7/30$305
This JetBlue deal was found by Cheapflights users on 7/31. 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.
lun. 9/292:17 pmPWM - SFO
1 stop12h 25mJetBlue
lun. 10/610:30 pmSFO - PWM
1 stop11h 52mJetBlue
Deal found 7/31$330
This United Airlines deal was found by Cheapflights users on 7/29. 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.
mié. 9/34:56 pmPWM - SJC
1 stop8h 44mUnited Airlines
sáb. 9/66:30 amSJC - PWM
1 stop8h 12mUnited Airlines
Deal found 7/29$333
This Delta deal was found by Cheapflights users on 7/29. 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.
mar. 8/2612:53 pmPWM - SJC
1 stop10h 49mDelta
lun. 9/18:25 pmSJC - PWM
2 stops11h 17mDelta
Deal found 7/29$351
This American Airlines deal was found by Cheapflights users on 7/29. 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.
mar. 8/267:09 amPWM - SJC
2 stops12h 27mAmerican Airlines
lun. 9/17:11 pmSJC - PWM
2 stops12h 30mAmerican Airlines
Deal found 7/29$356
This Sun Country Air deal was found by Cheapflights users on 7/31. 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.
vie. 8/1512:46 pmPWM - SFO
1 stop13h 07mSun Country Air
dom. 8/1711:59 pmSFO - PWM
1 stop8h 46mSun Country Air
Deal found 7/31$365
This Mytrip deal was found by Cheapflights users on 7/30. 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.
sáb. 8/26:58 pmPWM - SFO
1 stop18h 27mMultiple Airlines
jue. 8/711:59 pmSFO - PWM
1 stop8h 52mMultiple Airlines
Deal found 7/30$382
This Southwest deal was found by Cheapflights users on 7/29. 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.
mar. 8/269:05 amPWM - SJC
1 stop11h 30mSouthwest
lun. 9/18:55 pmSJC - PWM
1 stop9h 55mSouthwest
Deal found 7/29$394
This Mytrip deal was found by Cheapflights users on 7/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/256:05 pmPWM - SJC
3 stops24h 41mMultiple Airlines
dom. 8/316:00 amSJC - PWM
3 stops26h 40mMultiple Airlines
Deal found 7/29$566
This Southwest deal was found by Cheapflights users on 7/29. 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.
dom. 9/145:35 amPWM - OAK
2 stops12h 00mSouthwest
dom. 9/147:15 pmOAK - PWM
2 stops11h 35mSouthwest
Deal found 7/29$624

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 julio 31, 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

mié. 11/5

3:53 pm-10:12 pm

1 stop9h 19m

San Francisco

mar. 11/11

6:00 am-5:07 pm

1 stop8h 07m

$251

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

vie. 9/19

1:35 pm-8:28 pm

1 stop9h 53m

San Francisco

dom. 9/21

12:45 am-10:40 am

1 stop6h 55m

$277

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

mar. 9/30

8:00 am-1:50 pm

1 stop8h 50m

San Francisco

jue. 10/2

1:02 pm-11:59 pm

1 stop7h 57m

$305

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

lun. 9/29

2:17 pm-11:42 pm

1 stop12h 25m

San Francisco

lun. 10/6

10:30 pm-1:22 pm

1 stop11h 52m

$330

PortlandSan Jose

PWM - SJC

PWMSJC

Portland

mié. 9/3

4:56 pm-10:40 pm

1 stop8h 44m

San Jose

sáb. 9/6

6:30 am-5:42 pm

1 stop8h 12m

$333

PortlandSan Jose

PWM - SJC

PWMSJC

Portland

mar. 8/26

12:53 pm-8:42 pm

1 stop10h 49m

San Jose

lun. 9/1

8:25 pm-10:42 am

2 stops11h 17m

$351

PortlandSan Jose

PWM - SJC

PWMSJC

Portland

mar. 8/26

7:09 am-4:36 pm

2 stops12h 27m

San Jose

lun. 9/1

7:11 pm-10:41 am

2 stops12h 30m

$356

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

vie. 8/15

12:46 pm-10:53 pm

1 stop13h 07m

San Francisco

dom. 8/17

11:59 pm-11:45 am

1 stop8h 46m

$365

PortlandSan Jose

PWM - SJC

PWMSJC

Portland

mar. 8/26

9:05 am-5:35 pm

1 stop11h 30m

San Jose

lun. 9/1

8:55 pm-9:50 am

1 stop9h 55m

$394

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

dom. 9/7

5:35 am-3:40 pm

1 stop13h 05m

San Francisco

lun. 9/15

6:20 am-11:20 pm

2 stops14h 00m

$411

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 28 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 $358). 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 julio 31, 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.

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 julio 31, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta from Portland to San Francisco Bay Area to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Breeze Airways
8.0
Very good
191 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 - Oakland or Portland - San Jose.

  • 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 $358). 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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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 julio 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$218Average$407FlexibilityNo cancel feeOn-time71%
DeltaCheapest$253Average$448FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$272Average$444FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$276Average$485FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$320Average$495FlexibilityNo cancel feeOn-time62%

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