STL - BGR

$363 Find Cheap Flights from St. Louis to Bangor

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Bangor departing on 5/25. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Bangor

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Bangor, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Bangor, as well as popular online travel agencies
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41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$363
Typical prices: $398-$596
Delta
Mon 5/25Sun 5/31
STL - BGR • 1 stop
Cheapest one-way
Multiple Airlines
Thu 12/11
STL - BGR • multi-stop
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 31% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 42% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
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

Mon, May 25 - Sun, May 31
Delta Logo
6:00 am - 1:35 pm
STL
-
BGR
6h 35m1 stop
Delta Logo
2:40 pm - 8:49 pm
BGR
-
STL
7h 09m1 stop
$363Delta
Thu, Jan 8 - Mon, Jan 12
United Airlines Logo
11:20 am - 8:12 pm
STL
-
BGR
31h 52m2 stops
United Airlines Logo
8:14 am - 2:30 pm
BGR
-
STL
31h 16m2 stops
$530United Airlines
Thu, Jan 8 - Mon, Jan 12
United Airlines Logo
11:20 am - 8:12 pm
STL
-
BGR
31h 52m2 stops
United Airlines Logo
8:14 am - 2:30 pm
BGR
-
STL
31h 16m2 stops
$585United Airlines
Thu, Jan 8 - Mon, Jan 12
United Airlines Logo
11:22 am - 8:12 pm
STL
-
BGR
7h 50m1 stop
United Airlines Logo
8:14 am - 2:30 pm
BGR
-
STL
31h 16m2 stops
$593United Airlines
Mon, May 25 - Sun, May 31
Delta Logo
6:00 am - 1:35 pm
STL
-
BGR
6h 35m1 stop
Delta Logo
12:59 pm - 11:38 pm
BGR
-
STL
11h 39m2 stops
$604Delta
Fri, Jan 9 - Sun, Jan 11
United Airlines Logo
11:22 am - 8:12 pm
STL
-
BGR
7h 50m1 stop
United Airlines Logo
8:14 am - 7:27 pm
BGR
-
STL
12h 13m2 stops
$618United Airlines
Fri, Jan 9 - Sun, Jan 11
United Airlines Logo
9:57 am - 8:12 pm
STL
-
BGR
9h 15m2 stops
United Airlines Logo
8:14 am - 7:27 pm
BGR
-
STL
12h 13m2 stops
$623United Airlines
Thu, Jan 8 - Mon, Jan 12
United Airlines Logo
11:22 am - 8:12 pm
STL
-
BGR
7h 50m1 stop
United Airlines Logo
8:14 am - 2:30 pm
BGR
-
STL
31h 16m2 stops
$625United Airlines
Fri, Dec 26 - Tue, Dec 30
American Airlines Logo
6:02 am - 12:06 pm
STL
-
BGR
5h 04m1 stop
American Airlines Logo
1:36 pm - 8:51 pm
BGR
-
STL
8h 15m1 stop
$744American Airlines
Mon, May 25 - Sun, May 31
Delta Logo
2:18 pm - 11:28 pm
STL
-
BGR
8h 10m2 stops
Delta Logo
6:00 am - 1:17 pm
BGR
-
STL
8h 17m2 stops
$789Delta
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 May.

What’s the cheapest day of the week to fly from St. Louis to Bangor?

The average price of all round-trip flights from St. Louis to Bangor clicked on KAYAK for each day over the last 12 months.

For St. Louis to Bangor, Tuesday is the cheapest day to fly on average and Monday is the most expensive. Flying from Bangor back to St. Louis, the best deals are generally found on Wednesday, with Saturday being the most expensive.

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 February, where tickets cost $264 (return) on average. On the other hand, the most expensive months are December and January, where the average cost of round-trip tickets is $1,123 and $619 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 4 weeks before departure, which saves you about 31% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$363
Best time to beat the crowds with an average 42% drop in price.
Most popular time to fly with an average 1% 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 3 days, the lowest price for a flight from St. Louis to Bangor was $363 for a round-trip ticket.

  • 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?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between St. Louis and Bangor, with Star Alliance 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 $318 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $388 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.
7.9
DeltaOverall score based on 8007 reviews
7.9Entertainment
7.9Comfort
8.1Boarding
8.5Crew
7.3Food
Airline reviews

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

10.0 ExcellentVenkata Krishna, Dec 2025
ATL - SDF
Read more Delta reviews

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

We had a lot of really rough weather but that was not Delta's fault. Pilot was amazing.

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

United have really come back. Airport and boarding process is clear and good, app and information also very good

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very bad! They kept delaying my flight and wouldn’t do anything about it

They brought an empty plane to the gate. Then a flight delay was announced for maintenance and waiting on a part. I was then put on a flight to San Francisco instead with a connecting flight to my final destination. Arrived at my final destination 2 hours late.

The only downside was my cell phone charger wouldn’t work in the charging port but everyone else’s would work in them all. My cell phone cable works fine in my hotel room in Frankfurt.

Flight team stood out for perzonal attention, kindness at bright cheery attitudes at 8am. Very helpful.

Ot was overall fine. Left on time and had basic snacks. Weather was finicky but that’s not the airlines fault.

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

it was fine, decent flight... dont get food besides cookies or pretzels so not sure why you ask about food. same for entertainment..

I got sick nothing contagious but distressing and the care I received by Kayla? Keighly the flight attendant will be memorable for ever. Thank You

I got sick nothing contagious but distressing enough and the care I received on the flight was astounding.

Waaay too small plane. They also need to up the size of the overhead bins. I would love to keep me 3k with of camera equipment in my hard case baggahe instead of it being thrown into the belly of the plane

Attendants were pleasant and the flight was smooth and relaxed.

A little late at the start but all worked out well.

It was fine. No drinks nor snacks offered though. I thought that was unusual.

I liked the humor of the captain and crew on the flight from Flagstaff to Dallas. They were humorous.

AA delayed the flight for 3 hours and 50 minutes, but delayed the last 2 hours, 30 minutes at a time, so if we knew before, could have stayed at home and worked instead of being at the airport wasting time... The plane's crew was excellent, not their fault.

After arriving in Dallas, the aircraft taxied for an unusually long time and was unable to park at the gate, which caused a significant delay and made me miss my connecting flight. I then had to wait in a very long line to be rebooked, and I was told that no hotel or meal accommodations would be provided. What is even more unacceptable is that my luggage was mishandled and has still not been located. My suitcase contains important medications that I urgently need, and I have been unable to access them due to the airline’s mishandling. This situation has caused me considerable stress and inconvenience, and I need this issue to be resolved immediately.

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

Information on your arrival and departure airports