STL - BGR

$205 Find Cheap Flights from St. Louis to Bangor - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Bangor departing on 9/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$249
Typical prices: $286-$398
United Airlines
Wed 9/9Sat 9/12
STL - BGR • 1 stop
Cheapest one-way
$205
Multiple Airlines
Mon 9/7
STL - BGR • 3 stops
Top airlines
Cheapest • from $249 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Bangor. You'll need at least 1 connection.
Insights
Insights
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Insights
Top layover airports
Cheapest • Avg $303 (round-trip)
Shortest trip • 4h 58m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 27% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Bangor!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from St. Louis to Bangor (STL-BGR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Bangor that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Bangor

Wed, Sep 9 - Sat, Sep 12
United Airlines Logo
12:59 pm - 9:47 pm
STL
-
BGR
7h 48m
1 stop
United Airlines Logo
6:14 am - 11:17 am
BGR
-
STL
6h 03m
1 stop
$249United Airlines
Wed, Aug 26 - Sat, Aug 29
Delta Logo
5:25 pm - 11:40 pm
STL
-
BGR
5h 15m
1 stop
Delta Logo
6:00 am - 4:17 pm
BGR
-
STL
11h 17m
2 stops
$262Delta
Wed, Sep 9 - Sat, Sep 12
Delta Logo
5:30 pm - 11:20 pm
STL
-
BGR
4h 50m
1 stop
Delta Logo
6:15 am - 2:49 pm
BGR
-
STL
9h 34m
2 stops
$262Delta
Thu, Oct 15 - Wed, Oct 21
Multiple Airlines Logo
8:34 pm - 6:41 pm
STL
-
BGR
21h 07m
1 stop
Multiple Airlines Logo
5:12 pm - 9:40 am
BGR
-
STL
17h 28m
2 stops
$267Multiple Airlines
Wed, Aug 26 - Sat, Aug 29
Delta Logo
12:52 pm - 11:40 pm
STL
-
BGR
9h 48m
2 stops
Delta Logo
6:00 am - 2:33 pm
BGR
-
STL
9h 33m
2 stops
$267Delta
Wed, Sep 9 - Sat, Sep 12
United Airlines Logo
12:59 pm - 9:47 pm
STL
-
BGR
7h 48m
1 stop
United Airlines Logo
6:14 am - 11:17 am
BGR
-
STL
6h 03m
1 stop
$269United Airlines
Wed, Aug 26 - Sat, Aug 29
United Airlines Logo
12:59 pm - 9:51 pm
STL
-
BGR
7h 52m
1 stop
United Airlines Logo
6:00 am - 12:03 pm
BGR
-
STL
7h 03m
1 stop
$277United Airlines
Mon, Sep 14 - Wed, Sep 23
American Airlines Logo
9:58 am - 5:35 pm
STL
-
BGR
6h 37m
1 stop
American Airlines Logo
5:50 am - 10:29 am
BGR
-
STL
5h 39m
1 stop
$289American Airlines
Fri, Aug 28 - Tue, Nov 17
American Airlines Logo
5:57 pm - 11:59 pm
STL
-
BGR
5h 02m
1 stop
American Airlines Logo
4:24 pm - 9:34 pm
BGR
-
STL
6h 10m
1 stop
$289American Airlines
Fri, Oct 16 - Wed, Oct 21
Multiple Airlines Logo
10:35 am - 9:27 am
STL
-
BGR
21h 52m
2 stops
Multiple Airlines Logo
5:12 pm - 7:39 pm
BGR
-
STL
27h 27m
1 stop
$296Multiple Airlines
Booking Insights

KAYAK's insights & trends for St. Louis to Bangor flights

Get data-powered insights and trends into flights from St. Louis to Bangor to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from St. Louis to Bangor, Maine?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Bangor, Maine departing in September.

Flight prices are below average for this route right now.

Flights to Bangor, Maine from St. Louis usually cost between $346 and $556 in September.
The lowest price found in the past 5 days was $249 on United Airlines (Sep 9-Sep 12).

What is the cheapest month to fly from St. Louis to Bangor?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Bangor, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Bangor is January, where tickets cost $0 (return) on average. On the other hand, the most expensive months are June and March, where the average cost of round-trip tickets is $514 and $500 respectively.

How far in advance should I book a flight from St. Louis to Bangor?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from St. Louis to Bangor, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from St. Louis to Bangor, you should book around 5 weeks before departure, which saves you about 27% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low season

February

Cheapest flight

$205
Best time to beat the crowds with an average 34% drop in price.
Most popular time to fly with an average 15% increase in price.
Flight from St. Louis to Bangor

When to book flights from St. Louis to Bangor

Are your dates flexible? Find out the best times to travel from St. Louis to Bangor based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Bangor

  • What is the cheapest flight from St. Louis to Bangor?

    In the last 5 days, the lowest price for a flight from St. Louis to Bangor was $205 for a one-way ticket and $249 for a round-trip.

  • Do I need a passport to fly between St. Louis and Bangor?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from St. Louis to Bangor?

    When flying out of St. Louis you will be using Lambert-St Louis. You will be landing at Bangor, also known as Bangor.

  • Which aircraft models fly most regularly from St. Louis to Bangor?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Bangor?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between St. Louis and Bangor, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from St. Louis to Bangor, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Bangor are Delta and United Airlines. With an average price for the route of $453 and an overall rating of 7.8, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $439 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from St. Louis to Bangor?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Bangor.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Bangor?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bangor from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Bangor?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Bangor with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and BGR can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Bangor?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Bangor from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from St. Louis to Bangor

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Bangor. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Bangor? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
DeltaOverall score based on 8487 reviews
8.5Crew
7.8Entertainment
7.8Comfort
8.1Boarding
7.2Food
Airline reviews

Flight was delayed multiple time and for more than 1 hr. My onward flight from BOS to MCI was also delayed. These delays have caused me so much inconvenience and Delta does nothing to ensure flights take off on time. No one knew why the inbound flight was delayed and what was the issue.

2.0 MediocrePreeti, Jul 2026
MCI - BOS
Read more Delta reviews

Flight was delayed multiple time and for more than 1 hr. My onward flight from BOS to MCI was also delayed. These delays have caused me so much inconvenience and Delta does nothing to ensure flights take off on time. No one knew why the inbound flight was delayed and what was the issue.

Our flight was delayed by over 4 hours due to a maintenance issue. They announced a new plane was on the way. We were given a $12 food voucher ( airport food is quite expensive You can’t even by a water and a small snack for 12:00. 4 hours later we boarded and landed in Atlanta at 10:20 ish pm. Of course we missed our connection and we were given a hotel voucher and another food voucher ! We didn’t make it home until 11:00 the next day ! Unacceptable

From checking to boarding, it was a seamless experience. The service agents were so helpful. The flight crew was so pleasant.

Delta has too many delays now days. It is 1:06 am now. I was supposed to land in Norfolk at 10:30 pm. I got re-booked through Detroit and I’m still in Detroit. I hope to be landed in Norfolk by 3am. I’ve been in airports for 12 hours as of right now. There is a weather delay now but most delays lately have been maintenance.

This is the first time I've been disappointed with Delta. I was called by Delta to see if I would volunteer to change flights since my original flight home was overbooked. I accepted. The modified booking only provided me a 35 minute layover - when you subtract the fact that boarding closes for a flight 15 minutes early, that gave me 20 minutes to run for one end of the airport to the other. I barely made it. On the 2.5 hour flight to Tampa, the crew repeatedly let us know over the intercom that they cannot serve drinks or snacks due to safety/turbulence. I would have accepted this reason if they did not CONTINUALLY SERVE DRINKS AND COOKED FOOD to First class. If safety is the excuse then the entire plane should be strapped in for safety. On top of this the air conditioning vents were not working correctly and the plane was uncomfortably warm. I love Delta and am a loyal Delta traveler, and I have never had an experience like this. I don't know if there's a disconnect between availability among third-party sites like KAYAK and the airlines or what, but when overbooking causes issues like this for travelers it should be reviewed and changes to the booking process should be made. I blame BOTH KAYAK and Delta for this terrible experience.

Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!

My flight was canceled after being rescheduled for four days canceling my trip. Kayak and everyone affiliated with it I.e the airlines, and just fly have been excruciating to deal with. My trip to visit family had to be canceled as there was no way to make it. I am furious at all of you.

They delayed our flight because of bad weather in NY which was completely understandable. Then they cancelled our flight and a later flight that evening. The earliest we could fly was the next morning. We ended up buying last minute tickets on another airline and made it home slightly delayed but safely that evening. Delta kept saying it was weather related but if that was the case how did we make it back on another airline? The weather in NY was cloudy but not bad.

The plane smelled like a sewer. Multiple passengers complained. It’s a safety and quality issue to clean these planes.

We were delayed 2 hours leaving STL. I had 20 mins from when we landed in SLC terminal A to make it to SLC terminal B. I had to actually run! thankfully I made my flight but 3/4 legs were delayed to some capacity.

I almost missed my connection in Chicago due to having to wait on a gate to be open I am assuming. Having to run from E terminal to C terminal and I barely made it there before they closed the door. This may not be the actual airline's fault it's crazy how there is so little time between flight especially when they are placed so far apart in the airport.

Our flight was great with an unexpected upgrade. However, four days into our travel we are still without a piece of luggage. The bag tracker has not been accurate, the airline is not communicating with me or the luggage delivery service and no one is willing to take responsibility or guarantee any kind of support or reimbursement. Unfortunately, we do not have the option to easily shop to replace items as we are currently on a cruise. I have been very disappointed by United Airlines response.

Fine not above and beyond as I had a connection that was delayed due to maintenance

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

Flight was delayed. De-icing took a while. When we landed had to wait for another plane to vacate our gate. Just an overall bad experience.

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

Overall a very poor experience - booked premium economy tickets but due to last minute flight delays , all my itinery went for a toss and had to fly economy class with no access to lounge or any compensation by united airlines to make up for the flight delays . i had expected better experience than that from united.

Onboarding - it would be great to see on the screen what group they were boarding. It was very confusing on who was boarding (even though they called it out) they were not clear and the space to board was strange.

My wallet fell out of my pocket ( my fault). Staff claimed they looked while cleaning. Said they didn't find it, but was actually found in Washington DC on the plane. Which mean either they didn't look or don't do a good job of cleaning. Now I have to pay 27 dollars to get it shipped back and have no wallet for my entire vacation

Older plane. Food was really bad, almost not worth the effort. Huge difference with European based airlines.

My luggage was not sent with us. Not sure if this is Envoy Air responsibility but that was a very BAD experience

American delayed the flight for a crew rest period. The delay occurred late in the evening - the earliest i can find is 10:20 pm. With a 6 am flight anyone on the flight would have already have been asleep (unless you are insane, a vampire or on drugs) and at least for me i was already on the way to the airport at 445 am the next morning when i discovered they delayed the flight until 9 am. Given the incoming flight was in the air at 6 pm the evening before this should have been figured out a lot more timely that was there only crew to use. Just frustrating given there is no consideration for customer experience anymore in flying.

Good crew and flight was on time. It’s a small plane with limited overhead luggage space. They said the overhead space was full and I had to check my bag. There was still space when I got on. Waiting for my checked luggage added 30 minutes to my trip. Not the end of the world but also not great.

Trip delayed for 2 hours because of rain. We boarded and have to get down the flight and reboard again.

No enough space plus only allowing one laggage instead of two like other airlines.

Qatar airways ,boarding arrangements at Hamid international airport could been better

Two flight changes before the scheduled flight. On the day of the flight, the flight was delayed, which caused the connecting flight to be missed. Then, I was directed to another airport (CUN) and traveled to Tulum. American gave a $12 voucher for lunch. The least expensive item on the menu at a Mexican restaurant was $9.99. Driving to Tulum was a bad auto crash, and traffic was delayed two-plus hours. The bottom line is that we should have been at the hotel at noon, but it ended up at 11:30 PM.

Miami lounges were overcrowded and we were unable to get in. We only had a short time. But the banks are too tight in all American hubs

Overall boarding and debarking is a joke. I dont even bring luggage anymore on trips because you can never allow them to be place then in the overhead bin or you have to pay or you check them which is even worse having to wait for your luggage on the tarmac.

First time flying internationally with AA and probably my last. Not military friendly at all. Didn't allow free checked bag for military family members (dependents) on orders like other airlines. We were charged $100 for baggage weight overage (5 lbs!)even though we had military orders allowing us extra.. Didn’t allow military members to board early. Inefficient and long wait time to board. Seats are smaller and more uncomfortable than other airlines.. no drink service for over 7 hrs of flight! After initial meal was served, the crew never offered a snack or drinks until the breakfast's was served 1 1/2 hrs before landing. Overall expensive and poor experience for the entire flight.

Everything you need to know for your flight from St. Louis to Bangor

Information on your arrival and departure airports