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$365+ Cheap flights from St. Louis to Butte (STL - BTM)

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 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BTM
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap flight deals from St. Louis to Butte

Cheapest flights from St. Louis to Butte
Explore the most affordable flight options available from St. Louis to Butte. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.

This United Airlines deal was found by Cheapflights users on 1/26. 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.
Sat 2/214:30 pm
STL
-
BTM
1 stop6h 56m
United Airlines
Wed 2/2510:00 am
BTM
-
STL
1 stop5h 58m
United Airlines
Deal found 1/26$365

Find flight deals from St. Louis to Butte

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Butte (BTM). 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 January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$365
(United Airlines)
Provider with most accurate pricing for Lambert-St Louis-Butte Silver Bow Co flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Butte Silver Bow Co flights.
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From Lambert-St Louis to Butte Silver Bow Co
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Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Butte 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 January 27, 2026.
Use the filters below to find and compare flights from St. Louis to Butte that are best for you.

Fly from

St. Louis

Fly to

Butte

Route

Depart

Return

Price

St. LouisButte

STL - BTM

STLBTM

Lambert-St Louis

Sat 2/21

4:30 pm-10:26 pm

1 stop6h 56m

Butte Silver Bow Co

Wed 2/25

10:00 am-4:58 pm

1 stop5h 58m

$365

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Compare providers for flights from St. Louis to Butte

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Butte in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Butte flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Butte flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Butte flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Butte flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Butte flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Have a flexible travel schedule? Discover the best time to fly to Butte 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 Butte

What is the cheapest month to book a flight from St. Louis to Butte?

Currently, January is the cheapest month in which you can book a flight from St. Louis to Butte (average of $192). Flying from St. Louis to Butte in April is currently the most expensive (average of $336). 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 Butte

Get insights into the airlines that provide service to Butte. 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 Butte. Reviews last updated January 27, 2026.
Read through reviews of airlines operating flights from St. Louis to Butte, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,205 reviews

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,205 reviews
United Airlines
7.4
Good
9,205 reviews

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Butte. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from St. Louis to Butte?

    United Airlines can get you from St. Louis to Butte in just under 6h 56m. Your travel time can differ by up to . Airlines will cover a distance of 1228 mi.

  • What is the cheapest airline to fly from St. Louis to Butte round-trip?

    Flying on United Airlines is currently your cheapest option to Butte, with prices starting at $275.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Butte 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 Butte?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Butte (average of $192). Flying from St. Louis to Butte in April is currently the most expensive (average of $336). 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.

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Top airline flying from St. Louis to Butte

Discover the top airline that operate flights from St. Louis to Butte. 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 January 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$275Average$453FlexibilityNo cancel feeOn-time69%

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