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$156+ Cheap flights from Bangor, ME to San Francisco (BGR - SFO)

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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
BGR — SFO
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Bangor to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Bangor (BGR) 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 September 11, 2025.

Round-trip from

$309
(American Airlines)

One-way from

$156
(American Airlines)

Popular in

May

Cheapest in

January

Average price

$496
From Bangor to San Francisco
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One-way flight from Bangor to San Francisco
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Highest demand for flights based on searches. 10% potential increase in price ($64 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Bangor to San Francisco

Cheapest flights from Bangor to San Francisco
Explore the most affordable flight options available from Bangor to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This American Airlines deal was found by Cheapflights users on 9/11. 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.
Wed 10/223:55 pmBGR - SFO
1 stop10h 40mAmerican Airlines
Tue 10/286:10 amSFO - BGR
1 stop7h 35mAmerican Airlines
Deal found 9/11$309
This Delta deal was found by Cheapflights users on 9/10. 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.
Sat 10/252:00 pmBGR - SFO
1 stop11h 30mDelta
Tue 10/286:10 amSFO - BGR
2 stops14h 18mDelta
Deal found 9/10$314
This Delta deal was found by Cheapflights users on 9/11. 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 10/225:19 amBGR - SFO
2 stops16h 37mDelta
Mon 10/2712:35 amSFO - BGR
2 stops12h 48mDelta
Deal found 9/11$329
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Wed 10/15:54 pmBGR - SFO
1 stop8h 15mAmerican Airlines
Sun 10/56:45 amSFO - BGR
2 stops12h 20mAmerican Airlines
Deal found 9/11$344
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Wed 11/512:34 pmBGR - SFO
2 stops11h 00mAmerican Airlines
Mon 11/107:00 amSFO - BGR
2 stops13h 13mAmerican Airlines
Deal found 9/11$351
This United Airlines deal was found by Cheapflights users on 9/10. 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 9/254:15 pmBGR - SFO
1 stop9h 16mUnited Airlines
Mon 9/2911:25 pmSFO - BGR
1 stop9h 13mUnited Airlines
Deal found 9/10$369
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 9/2512:46 pmBGR - SFO
2 stops11h 32mAmerican Airlines
Mon 9/296:00 amSFO - BGR
1 stop8h 14mAmerican Airlines
Deal found 9/10$374
This Delta deal was found by Cheapflights users on 9/11. 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.
Fri 9/265:23 amBGR - SFO
2 stops16h 25mDelta
Mon 9/2912:45 amSFO - BGR
2 stops10h 46mDelta
Deal found 9/11$379
This Delta deal was found by Cheapflights users on 9/10. 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 10/15:23 amBGR - SFO
2 stops16h 25mDelta
Sat 10/412:45 amSFO - BGR
2 stops12h 37mDelta
Deal found 9/10$394

Cheapflights Fare Finder

 
Customize your flight search to find flights from Bangor 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 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Bangor to San Francisco that are best for you.

Fly from

Bangor

Fly to

San Francisco

Route

Depart

Return

Price

BangorSan Francisco

BGR - SFO

BGRSFO

Bangor

Wed 10/22

3:55 pm-11:35 pm

1 stop10h 40m

San Francisco

Tue 10/28

6:10 am-4:45 pm

1 stop7h 35m

$309

BangorSan Francisco

BGR - SFO

BGRSFO

Bangor

Sat 10/25

2:00 pm-10:30 pm

1 stop11h 30m

San Francisco

Mon 10/27

12:35 am-2:24 pm

2 stops10h 49m

$314

BangorSan Francisco

BGR - SFO

BGRSFO

Bangor

Wed 11/5

3:52 pm-10:05 pm

1 stop9h 13m

San Francisco

Mon 11/10

7:00 am-11:13 pm

2 stops13h 13m

$314

BangorSan Francisco

BGR - SFO

BGRSFO

Bangor

Wed 10/22

3:48 pm-9:56 pm

1 stop9h 08m

$156

BangorSan Francisco

BGR - SFO

BGRSFO

Bangor

Wed 11/26

3:05 pm-10:41 pm

1 stop10h 36m

$290

BangorSan Francisco

BGR - SFO

BGRSFO

Bangor

Sun 10/19

7:43 pm-10:55 am

2 stops42h 12m

$293

BangorSan Francisco

BGR - SFO

BGRSFO

Bangor

Sat 11/22

12:30 pm-12:12 am

2 stops14h 42m

$296

BangorSan Francisco

BGR - SFO

BGRSFO

Bangor

Wed 11/26

12:41 pm-10:33 pm

2 stops12h 52m

$345

BangorSan Francisco

BGR - SFO

BGRSFO

Bangor

Fri 11/21

12:47 pm-11:33 pm

2 stops13h 46m

$345

BangorSan Francisco

BGR - SFO

BGRSFO

Bangor

Tue 10/14

6:00 am-3:18 pm

2 stops12h 18m

$401

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 11 results
1
2

Best time to book a flight from Bangor to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Bangor 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 Bangor to San Francisco

What is the cheapest month to book a flight from Bangor, Maine to San Francisco?

Currently, January is the cheapest month in which you can book a flight from Bangor, Maine to San Francisco (average of $276). Flying from Bangor, Maine to San Francisco in June is currently the most expensive (average of $357). 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.

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 September 11, 2025.
Read through reviews of airlines operating flights from Bangor to San Francisco, such as United Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Related info for your journey

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

  • How long is the flight from Bangor, Maine to San Francisco?

    Departing from Bangor, Maine to San Francisco will take you 10h 40m. The distance from Bangor, Maine to San Francisco is about 2774 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Flying on American Airlines is currently your cheapest option to San Francisco, with prices starting at $308. Another option worth looking into is United Airlines, starting at $404 round trip. American Airlines is priced at 46% lower than the current average price of a flight leaving 3 months from now.

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

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

  • How can I find direct flights from Bangor to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Bangor to San Francisco.

  • Can I find deals for business class flights from Bangor to San Francisco?

    Yes. Cheapflights offers flight deals from Bangor 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.

  • What is the cheapest month to book a flight from Bangor, Maine to San Francisco?

    Currently, January is the cheapest month in which you can book a flight from Bangor, Maine to San Francisco (average of $276). Flying from Bangor, Maine to San Francisco in June is currently the most expensive (average of $357). 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

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Roseville
Santa Cruz
Livermore
South San Francisco
Turlock
Antioch
Watsonville
Manteca
Santa Clara
Sunnyvale
Hollister
Vacaville
Foster City
Vallejo
Burlingame
Redwood City
Union City
San Leandro
San Mateo
Lathrop

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Top 2 airlines flying from Bangor to San Francisco

Discover the top 2 airlines that operate flights from Bangor 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 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$308Average$519FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$404Average$747FlexibilityNo cancel feeOn-time69%

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