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Bangor

$259+ Cheap flights from St. Louis to Bangor, ME (STL - BGR)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BGR
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Lambert-St Louis to Bangor are usually found in February or November, booked 70 days in advance, depart on a Tuesday or Friday and return on a Wednesday

Cheap flight deals from St. Louis to Bangor

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Bangor (BGR). 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 August 14, 2025.

Round-trip from

$259
(American Airlines)

Popular in

January

Cheapest in

February

Average price

$290
From Lambert-St Louis to Bangor
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($40 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
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Find flight deals from St. Louis to Bangor

Cheapest flights from St. Louis to Bangor
Explore the most affordable flight options available from St. Louis to Bangor. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This American Airlines deal was found by Cheapflights users on 8/14. 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 9/116:00 pmSTL - BGR
1 stop4h 48mAmerican Airlines
Tue 9/165:39 amBGR - STL
1 stop8h 12mAmerican Airlines
Deal found 8/14$259
This American Airlines deal was found by Cheapflights users on 8/14. 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 9/36:00 pmSTL - BGR
1 stop4h 48mAmerican Airlines
Sat 9/64:34 pmBGR - STL
1 stop7h 33mAmerican Airlines
Deal found 8/14$274
This American Airlines deal was found by Cheapflights users on 8/14. 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 9/266:00 pmSTL - BGR
1 stop4h 48mAmerican Airlines
Fri 10/31:58 pmBGR - STL
1 stop5h 43mAmerican Airlines
Deal found 8/14$291
This Delta deal was found by Cheapflights users on 8/14. 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 9/33:10 pmSTL - BGR
1 stop7h 24mDelta
Sat 9/66:00 amBGR - STL
2 stops11h 06mDelta
Deal found 8/14$294
This American Airlines deal was found by Cheapflights users on 8/14. 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 9/31:03 pmSTL - BGR
1 stop6h 28mAmerican Airlines
Sun 9/75:39 amBGR - STL
1 stop7h 37mAmerican Airlines
Deal found 8/14$306
This American Airlines deal was found by Cheapflights users on 8/14. 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 11/66:07 amSTL - BGR
1 stop5h 10mAmerican Airlines
Sat 11/83:52 pmBGR - STL
1 stop6h 03mAmerican Airlines
Deal found 8/14$314
This Delta deal was found by Cheapflights users on 8/13. 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 9/33:10 pmSTL - BGR
1 stop7h 24mDelta
Sun 9/75:11 amBGR - STL
1 stop6h 59mDelta
Deal found 8/13$323
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Tue 8/268:10 amSTL - BGR
1 stop6h 20mUnited Airlines
Sun 8/316:41 pmBGR - STL
1 stop6h 03mUnited Airlines
Deal found 8/14$329

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Bangor 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 August 14, 2025.
Use the filters below to find and compare flights from St. Louis to Bangor that are best for you.

Fly from

St. Louis

Fly to

Bangor

Route

Depart

Return

Price

St. LouisBangor

STL - BGR

STLBGR

Lambert-St Louis

Thu 9/11

6:00 pm-11:48 pm

1 stop4h 48m

Bangor

Tue 9/16

5:04 pm-11:07 pm

1 stop7h 03m

$259

St. LouisBangor

STL - BGR

STLBGR

Lambert-St Louis

Fri 9/26

6:00 pm-11:48 pm

1 stop4h 48m

Bangor

Fri 10/3

5:54 pm-9:53 pm

1 stop4h 59m

$259

St. LouisBangor

STL - BGR

STLBGR

Lambert-St Louis

Wed 9/3

8:17 am-4:14 pm

1 stop6h 57m

Bangor

Sat 9/6

4:34 pm-11:07 pm

1 stop7h 33m

$259

St. LouisBangor

STL - BGR

STLBGR

Lambert-St Louis

Thu 11/6

6:07 am-12:17 pm

1 stop5h 10m

Bangor

Sat 11/8

3:52 pm-8:55 pm

1 stop6h 03m

$291

St. LouisBangor

STL - BGR

STLBGR

Lambert-St Louis

Wed 9/3

3:10 pm-11:34 pm

1 stop7h 24m

Bangor

Sat 9/6

6:00 am-4:06 pm

2 stops11h 06m

$294

St. LouisBangor

STL - BGR

STLBGR

Lambert-St Louis

Wed 9/3

1:03 pm-8:31 pm

1 stop6h 28m

Bangor

Sun 9/7

5:39 am-12:16 pm

1 stop7h 37m

$306

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Best time to book a flight from St. Louis to Bangor

Have a flexible travel schedule? Discover the best time to fly to Bangor from St. Louis 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 St. Louis to Bangor

How far ahead should I book a flight from St. Louis to Bangor, Maine?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Bangor. Price data was last updated on August 8, 2025.

To ensure you get the cheapest price possible for a flight from St. Louis to Bangor, Maine, you should look to book at least 61 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from St. Louis to Bangor, Maine?

Currently, October is the cheapest month in which you can book a flight from St. Louis to Bangor, Maine (average of $358). Flying from St. Louis to Bangor, Maine in December is currently the most expensive (average of $490). 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 Bangor

Get insights into the airlines that provide service to Bangor. 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 Bangor. Reviews last updated August 14, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from St. Louis to Bangor have to say. 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
7,980 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,916 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Bangor. 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 St. Louis to Bangor, Maine round-trip?

    Cheapflights users have booked flights from St. Louis to Bangor, Maine round-trip from $201. Other airlines that can offer you cheap pricing are Delta, from $229, and American Airlines, from $258. Users have found that United Airlines is 48% cheaper than the other options available to this destination.

  • Can I find deals for flights from St. Louis to Bangor that include hotel bookings?

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

  • How can I find direct flights from St. Louis to Bangor?

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

  • Can I find deals for business class flights from St. Louis to Bangor?

    Yes. Cheapflights offers flight deals from St. Louis to Bangor 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 St. Louis to Bangor, Maine?

    Currently, October is the cheapest month in which you can book a flight from St. Louis to Bangor, Maine (average of $358). Flying from St. Louis to Bangor, Maine in December is currently the most expensive (average of $490). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 3 airlines flying from St. Louis to Bangor

Discover the top 3 airlines that operate flights from St. Louis to Bangor. 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$201Average$258FlexibilityNo cancel feeOn-time69%
DeltaCheapest$229Average$330FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$258Average$398FlexibilityNo cancel feeOn-time71%

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