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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
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$309
(American Airlines)

One-way from

$156
(Delta)

Popular in

May

Cheapest in

July

Average price

$678
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. 12% potential increase in price ($83 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 June 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 June 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/12. 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 10/225:34 amBGR - SFO
1 stop8h 47mAmerican Airlines
Tue 10/2810:49 amSFO - BGR
1 stop8h 48mAmerican Airlines
Deal found 6/12$309
This Delta deal was found by Cheapflights users on 6/12. 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 10/223:36 pmBGR - SFO
1 stop10h 44mDelta
Mon 10/2712:40 amSFO - BGR
2 stops11h 15mDelta
Deal found 6/12$314
This United Airlines deal was found by Cheapflights users on 6/10. 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 9/49:40 amBGR - SFO
1 stop8h 50mUnited Airlines
Sun 9/1411:25 pmSFO - BGR
1 stop9h 15mUnited Airlines
Deal found 6/10$409
This Trip.com deal was found by Cheapflights users on 6/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/811:02 amBGR - SFO
1 stop14h 57mMultiple Airlines
Tue 7/157:00 amSFO - BGR
1 stop23h 52mMultiple Airlines
Deal found 6/10$619

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 June 12, 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

5:34 am-11:21 am

1 stop8h 47m

San Francisco

Tue 10/28

10:49 am-10:37 pm

1 stop8h 48m

$309

BangorSan Francisco

BGR - SFO

BGRSFO

Bangor

Wed 10/22

3:36 pm-11:20 pm

1 stop10h 44m

San Francisco

Mon 10/27

12:40 am-2:55 pm

2 stops11h 15m

$314

BangorSan Francisco

BGR - SFO

BGRSFO

Bangor

Thu 9/4

9:40 am-3:30 pm

1 stop8h 50m

San Francisco

Sun 9/14

11:25 pm-11:40 am

1 stop9h 15m

$409

BangorSan Francisco

BGR - SFO

BGRSFO

Bangor

Tue 7/8

11:02 am-10:59 pm

1 stop14h 57m

San Francisco

Tue 7/15

7:00 am-9:52 am

1 stop23h 52m

$619

BangorSan Francisco

BGR - SFO

BGRSFO

Bangor

Wed 10/22

3:36 pm-11:20 pm

1 stop10h 44m

$156

BangorSan Francisco

BGR - SFO

BGRSFO

Bangor

Wed 10/22

2:50 pm-11:26 pm

2 stops11h 36m

$161

BangorSan Francisco

BGR - SFO

BGRSFO

Bangor

Tue 7/29

6:15 pm-11:29 am

2 stops20h 14m

$304

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

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 $364). 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 BGR to SFO?

Find hourly flight availability from Bangor to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

One of the essential ways to save on airfare from Bangor, Maine to San Francisco is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 15% on airfare.

Rainfall in San Francisco by month

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

In terms of precipitation, rainfall in San Francisco 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 when rainfall is around 0.0 in.

Temperature in San Francisco by month

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

If weather is an important factor for your trip to San Francisco, 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

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 June 12, 2025.
Read reviews from past customers who have flown Delta, United Airlines and American Airlines from Bangor to San Francisco. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • 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 $309. Additional round-trip tickets that might be worth considering are offered by Delta and United Airlines, with the lowest prices starting at $314 and $409, respectively. American Airlines is priced at 45% 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 $156. Users have also found prices from $161 and $304 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, 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 $364). 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 Bangor?

Book flights to Bangor if you plan to visit one of these locations
Roseville
Mountain View
South San Francisco
Livermore
Turlock
Santa Cruz
Manteca
Fairfield
Watsonville
Antioch
Hollister
Milpitas
Newark
Hayward
Alameda
Sunnyvale
Daly City
Union City
Campbell
Capitola

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$302Average$517FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$404Average$811FlexibilityNo cancel feeOn-time69%

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