STL - BTM

$414 Find Cheap Flights from St. Louis to Butte - Compare and Save

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 Butte departing on 8/29. 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
$414
United Airlines
Sat 8/29Wed 9/2
STL - BTM • 1 stop
Top airlines
Cheapest • from $414 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
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+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Butte. You'll need at least 1 connection.
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Flight Deals

Cheap Flights from St. Louis to Butte (STL-BTM)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Butte 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 Butte

Sat, Aug 29 - Wed, Sep 2
United Airlines Logo
4:40 pm - 10:26 pm
STL
-
BTM
6h 46m
1 stop
United Airlines Logo
8:37 am - 4:34 pm
BTM
-
STL
6h 57m
1 stop
$414United Airlines
Sat, Aug 29 - Wed, Sep 2
United Airlines Logo
12:59 pm - 10:26 pm
STL
-
BTM
10h 27m
2 stops
United Airlines Logo
8:37 am - 4:34 pm
BTM
-
STL
6h 57m
1 stop
$424United Airlines
Sat, Aug 29 - Wed, Sep 2
United Airlines Logo
12:59 pm - 10:26 pm
STL
-
BTM
10h 27m
2 stops
United Airlines Logo
8:37 am - 10:00 pm
BTM
-
STL
12h 23m
2 stops
$537United Airlines
Sat, Aug 22 - Wed, Aug 26
United Airlines Logo
1:05 pm - 10:26 pm
STL
-
BTM
10h 21m
2 stops
United Airlines Logo
8:37 am - 10:00 pm
BTM
-
STL
12h 23m
2 stops
$580United Airlines
Thu, Jul 16 - Sun, Jul 19
Delta Logo
6:00 am - 4:55 pm
STL
-
BTM
11h 55m
2 stops
Delta Logo
6:10 pm - 12:41 am
BTM
-
STL
5h 31m
1 stop
$1,094Delta
Thu, Jul 16 - Sun, Jul 19
United Airlines Logo
6:00 am - 10:30 pm
STL
-
BTM
17h 30m
3 stops
United Airlines Logo
10:15 am - 11:57 pm
BTM
-
STL
12h 42m
1 stop
$1,345United Airlines
Thu, Jul 16 - Sun, Jul 19
United Airlines Logo
6:00 am - 10:30 pm
STL
-
BTM
17h 30m
3 stops
United Airlines Logo
10:15 am - 3:46 pm
BTM
-
STL
28h 31m
2 stops
$1,476United Airlines
Thu, Jul 16 - Sun, Jul 19
United Airlines Logo
4:48 pm - 10:30 pm
STL
-
BTM
6h 42m
1 stop
United Airlines Logo
10:15 am - 12:42 pm
BTM
-
STL
25h 27m
1 stop
$1,934United Airlines
Booking Insights

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

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

Which airlines provide the cheapest flights from St. Louis to Butte?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from St. Louis to Butte were found on United Airlines ($414) and Delta ($1,094).

Good to know

Cheapest flight$414
Flight from St. Louis to Butte

When to book flights from St. Louis to Butte

Are your dates flexible? Find out the best times to travel from St. Louis to Butte 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 Butte

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

    In the last 5 days, the lowest price for a flight from St. Louis to Butte was $414 for a round-trip ticket.

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

    A passport is not required to fly from St. Louis to Butte.

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

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

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

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

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

    Star Alliance is the only airline alliance operating flights between St. Louis and Butte.

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

    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 Butte.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Butte 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 Butte?

    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 Butte with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and BTM 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 Butte?

    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 Butte 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 airline flying from St. Louis to Butte

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Butte. 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 Butte? 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.
7.4
United AirlinesOverall score based on 9927 reviews
7.3Comfort
6.7Food
7.7Boarding
8.1Crew
7.1Entertainment
Airline reviews

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

8.0 Excellentrob, Feb 2026
MCI - IAD
Read more United Airlines reviews

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.

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

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.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

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.

Please please take consideration when setting cabin temperature. The vents were not functional and it was over 70 degrees in the cabin during the winter months when most people are used to much cooler indoor temperatures. I was down to my white t-shirt and the sweat pants I wore from Auckland to San Francisco and was sweating profusely and there was NO VENT!

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.

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

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

Information on your arrival and departure airports