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$241+ 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 7/15. Fares are subject to change and may not be available on all flights or dates of travel.
BGR — SFO
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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Cheap 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 January 26, 2026.

This United Airlines deal was found by Cheapflights users on 1/25. 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 3/46:35 am
BGR
-
SFO
1 stop11h 55m
United Airlines
Mon 3/910:55 pm
SFO
-
BGR
1 stop8h 27m
United Airlines
Deal found 1/25$329
This American Airlines deal was found by Cheapflights users on 1/25. 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 3/412:44 pm
BGR
-
SFO
2 stops12h 56m
American Airlines
Mon 3/911:49 pm
SFO
-
BGR
1 stop9h 27m
American Airlines
Deal found 1/25$334
This Delta deal was found by Cheapflights users on 1/25. 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 3/41:06 pm
BGR
-
SFO
2 stops13h 41m
Delta
Mon 3/910:35 pm
SFO
-
BGR
2 stops14h 03m
Delta
Deal found 1/25$340
This American Airlines deal was found by Cheapflights users on 1/24. 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 4/236:25 am
BGR
-
SFO
1 stop10h 42m
American Airlines
Wed 4/2912:30 am
SFO
-
BGR
1 stop11h 03m
American Airlines
Deal found 1/24$354
This American Airlines deal was found by Cheapflights users on 1/25. 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 3/2512:43 pm
BGR
-
SFO
2 stops11h 55m
American Airlines
Tue 4/710:50 am
SFO
-
BGR
1 stop8h 38m
American Airlines
Deal found 1/25$359
This Delta deal was found by Cheapflights users on 1/25. 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.
Mon 2/231:08 pm
BGR
-
SFO
2 stops13h 41m
Delta
Mon 3/29:30 pm
SFO
-
BGR
2 stops11h 53m
Delta
Deal found 1/25$405
This American Airlines deal was found by Cheapflights users on 1/25. 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 4/26:17 am
BGR
-
SFO
2 stops13h 26m
American Airlines
Mon 4/1311:59 pm
SFO
-
BGR
2 stops11h 34m
American Airlines
Deal found 1/25$429
This Delta deal was found by Cheapflights users on 1/26. 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.
Tue 2/105:04 am
BGR
-
SFO
2 stops15h 39m
Delta
Sat 2/1410:45 pm
SFO
-
BGR
2 stops10h 38m
Delta
Deal found 1/26$435
This Delta deal was found by Cheapflights users on 1/25. 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 3/264:18 pm
BGR
-
SFO
1 stop9h 57m
Delta
Wed 4/810:40 pm
SFO
-
BGR
2 stops10h 08m
Delta
Deal found 1/25$439

Find 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 January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$329
(United Airlines)

One-way from

$241
(American Airlines)

Popular in

May

Cheapest in

July

Average price

$410
Provider with most accurate pricing for Bangor-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bangor-San Francisco flights.
Search Deals
From Bangor to San Francisco
Search Deals
One-way flight from Bangor to San Francisco
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($89 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 26, 2026.
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 3/4

6:35 am-3:30 pm

1 stop11h 55m

San Francisco

Mon 3/9

10:55 pm-10:22 am

1 stop8h 27m

$329

BangorSan Francisco

BGR - SFO

BGRSFO

Bangor

Wed 4/22

5:46 pm-11:54 pm

1 stop9h 08m

San Francisco

Tue 4/28

12:30 am-2:33 pm

1 stop11h 03m

$329

BangorSan Francisco

BGR - SFO

BGRSFO

Bangor

Thu 4/2

5:21 am-11:41 am

1 stop9h 20m

San Francisco

Mon 4/13

11:59 pm-2:33 pm

2 stops11h 34m

$334

BangorSan Francisco

BGR - SFO

BGRSFO

Bangor

Wed 3/4

12:44 pm-10:40 pm

2 stops12h 56m

San Francisco

Mon 3/9

11:49 pm-12:16 pm

1 stop9h 27m

$334

BangorSan Francisco

BGR - SFO

BGRSFO

Bangor

Wed 3/4

1:06 pm-11:47 pm

2 stops13h 41m

San Francisco

Mon 3/9

10:35 pm-3:38 pm

2 stops14h 03m

$340

BangorSan Francisco

BGR - SFO

BGRSFO

Bangor

Thu 4/23

3:15 pm-11:15 pm

1 stop11h 00m

San Francisco

Wed 4/29

12:30 am-2:33 pm

1 stop11h 03m

$354

BangorSan Francisco

BGR - SFO

BGRSFO

Bangor

Wed 3/25

12:43 pm-11:14 pm

2 stops13h 31m

San Francisco

Tue 4/7

10:35 pm-12:48 pm

1 stop11h 13m

$359

BangorSan Francisco

BGR - SFO

BGRSFO

Bangor

Mon 2/23

1:08 pm-11:49 pm

2 stops13h 41m

San Francisco

Mon 3/2

9:30 pm-12:23 pm

2 stops11h 53m

$405

BangorSan Francisco

BGR - SFO

BGRSFO

Bangor

Sat 5/23

2:40 pm-11:12 pm

2 stops11h 32m

San Francisco

Sat 5/30

6:15 am-11:28 pm

2 stops14h 13m

$405

BangorSan Francisco

BGR - SFO

BGRSFO

Bangor

Wed 7/15

2:21 pm-10:53 pm

1 stop11h 32m

$241

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 16 results
1
2

Compare providers for flights from Bangor to San Francisco

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Bangor to San Francisco in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Bangor, Maine-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Bangor, Maine-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Bangor, Maine-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Bangor, Maine-San Francisco flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Bangor, Maine-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, September is the cheapest month in which you can book a flight from Bangor, Maine to San Francisco (average of $304). Flying from Bangor, Maine to San Francisco in June is currently the most expensive (average of $530). 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 January 26, 2026.
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
9,199 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Entertainment

7.1

Overall

7.4

Comfort

7.3

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
9,199 reviews
United Airlines
7.4
Good
9,199 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Entertainment

7.1

Overall

7.4

Comfort

7.3

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
11,189 reviews
United Airlines
7.4
Good
9,199 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Entertainment

7.1

Overall

7.4

Comfort

7.3

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 9h 08m. 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 $347 round trip. American Airlines is priced at 41% lower than the current average price of a flight leaving 3 months from now.

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

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $138. Users have also found prices from $143 and $155 on American Airlines and United Airlines, respectively.

  • 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, September is the cheapest month in which you can book a flight from Bangor, Maine to San Francisco (average of $304). Flying from Bangor, Maine to San Francisco in June is currently the most expensive (average of $530). 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
South San Francisco
Santa Cruz
Roseville
Santa Clara
Livermore
Watsonville
San Bruno
Daly City
Sunnyvale
Turlock
Vacaville
San Carlos
San Ramon
Manteca
Vallejo
San Lorenzo
Davis
Hollister
Redwood City
Union City

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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 January 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$308Average$507FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$347Average$624FlexibilityNo cancel feeOn-time69%

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