STL - BTM

$329 Find Cheap Flights from St. Louis to Butte

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 4/21. 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 Butte

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Butte, 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 Butte, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$329
Delta
Tue 4/21Tue 4/28
STL - BTM • 2 stops
Cheapest one-way
Multiple Airlines
Thu 10/23
STL - BTM • multi-stop
Top airlines
Delta
Cheapest • from $329 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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We hope you love your trip to Butte!
Flight Deals
Booking Insights
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

Tue, Apr 21 - Tue, Apr 28
Delta Logo
6:45 am - 5:05 pmSTL-BTM
11h 20m2 stops
Delta Logo
6:10 pm - 12:36 amBTM-STL
5h 26m1 stop
$329Delta
Find Deal
Sat, Dec 13 - Mon, Dec 15
Delta Logo
6:00 am - 5:10 pmSTL-BTM
12h 10m2 stops
Delta Logo
6:10 pm - 12:48 amBTM-STL
5h 38m1 stop
$344Delta
Find Deal
Thu, Dec 4 - Wed, Dec 10
Delta Logo
6:39 am - 5:10 pmSTL-BTM
11h 31m2 stops
Delta Logo
6:10 pm - 1:01 amBTM-STL
5h 51m1 stop
$364Delta
Find Deal
Sat, Dec 13 - Mon, Dec 15
United Airlines Logo
4:37 pm - 10:29 pmSTL-BTM
6h 52m1 stop
United Airlines Logo
10:00 am - 12:39 pmBTM-STL
25h 39m1 stop
$396United Airlines
Find Deal
Thu, Dec 4 - Wed, Dec 10
United Airlines Logo
1:35 pm - 10:29 pmSTL-BTM
9h 54m1 stop
United Airlines Logo
10:00 am - 4:28 pmBTM-STL
5h 28m1 stop
$414United Airlines
Find Deal
Thu, Nov 6 - Mon, Nov 10
United Airlines Logo
8:25 am - 10:14 pmSTL-BTM
14h 49m2 stops
United Airlines Logo
9:47 am - 4:28 pmBTM-STL
5h 41m1 stop
$493United Airlines
Find Deal
Thu, Nov 6 - Mon, Nov 10
United Airlines Logo
9:00 am - 10:14 pmSTL-BTM
14h 14m1 stop
United Airlines Logo
9:47 am - 4:28 pmBTM-STL
5h 41m1 stop
$497United Airlines
Find Deal
Thu, Nov 6 - Mon, Nov 10
United Airlines Logo
8:25 am - 10:14 pmSTL-BTM
14h 49m2 stops
United Airlines Logo
9:47 am - 10:45 pmBTM-STL
11h 58m2 stops
$498United Airlines
Find Deal
Tue, Nov 25 - Mon, Dec 1
Delta Logo
7:05 am - 5:14 pmSTL-BTM
11h 09m2 stops
Delta Logo
6:10 pm - 12:46 amBTM-STL
5h 36m1 stop
$499Delta
Find Deal
Sat, Dec 13 - Mon, Dec 15
United Airlines Logo
4:37 pm - 10:29 pmSTL-BTM
6h 52m1 stop
United Airlines Logo
10:00 am - 2:25 pmBTM-STL
51h 25m3 stops
$543United Airlines
Find Deal
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 72 hours.

In the past 3 days, the cheapest round-trip tickets from St. Louis to Butte were found on Delta ($329) and United Airlines ($396).

Which airlines fly non-stop between St. Louis and Butte?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from St. Louis to Butte.

There is just one airline that flies from St. Louis to Butte direct and that is United Airlines. The best round-trip deal found from United Airlines for the route is $275.

Good to know

Cheapest flight$329
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 3 days, the lowest price for a flight from St. Louis to Butte was $329 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 8995 reviews
7.3Comfort
7.1Entertainment
7.7Boarding
8.1Crew
6.6Food
Airline reviews

After boarding the plane in Chicago, the passengers were told that there was a technical problem with the plane. Passengers remained on the plane as they tried to fix the problem. After what was probably an hour passengers were told that there was a need to change planes as the problem was not solved. Passengers disembarked and boarded another plane. After taxing to the runway and waiting for takeoff, passengers were told that owing to the thunderstorm the flight was unable to take off but would try and reroute. After some time passengers were told there wasn't enough fuel for the new route and the plane had to return to the gate for additional fuel. after another log delay the flight got underway. On the plane there was food, drinks, ice or entertainment. We were a glass of water, which appeared rationed. Flight arrived about 5 hours late. The pilot was fantastic and communicated with the passengers throughout the ordeal.

2.0 MediocreAnonymous, Oct 2025PHX - ORD
Read more United Airlines reviews

After boarding the plane in Chicago, the passengers were told that there was a technical problem with the plane. Passengers remained on the plane as they tried to fix the problem. After what was probably an hour passengers were told that there was a need to change planes as the problem was not solved. Passengers disembarked and boarded another plane. After taxing to the runway and waiting for takeoff, passengers were told that owing to the thunderstorm the flight was unable to take off but would try and reroute. After some time passengers were told there wasn't enough fuel for the new route and the plane had to return to the gate for additional fuel. after another log delay the flight got underway. On the plane there was food, drinks, ice or entertainment. We were a glass of water, which appeared rationed. Flight arrived about 5 hours late. The pilot was fantastic and communicated with the passengers throughout the ordeal.

The flight attendants were great, I joked with one I can’t remember her name, a blond, really sweet. I thought it was run well very professional. This was great i survived Spirit, I know for which I speak.

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Flight was timely, relatively comfortable, with decent entertainment and food served. Only problem encountered was with the free messaging which I highly appreciate, but it did not work from iphone to non-iphones.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

The entertainment available didn’t work for anyone on the flight. Long 6 hr flight with no entertainment option and the staff didn’t know until an hour into the flight when we made sure they knew about it. They had no way to fix it.

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

The worst landing I have ever had on a domestic flight. Thought we would lose the landing gear on landing in Newark. Then we spent 40 minutes trying to position the plane in the right place to be able to get the jet way to the plane. The plane arrived stopped. The announcer was that we were there. Everybody got up, then we were told to sit back down because they had to have us towed to a different position. We got towed and then everyone stood up and they told us we were in the wrong position to sit back down again, and then we got towed to a different position This did not happen immediately. It was 30 minutes while we wandered around a small section of the tarmac in Newark close to the gate, but apparently not close enough. Horrifying experience The CAB should be investigating that flight

Boarding was organized. Plane seats comfortable and service was attentive. Food options were good.

This was a very average flight. The seat was out of alignment so more uncomfortable than usual. The cabin felt not well maintained. But I safely got where I needed to go.

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

Information on your arrival and departure airports

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