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Billings

$313+ Cheap flights from St. Louis to Billings (STL - BIL)

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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BIL
Apr 29 — May 61
Tue 4/29
Tue 5/6
1 adult, Economy
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Cheap flight deals from St. Louis to Billings

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Billings (BIL). 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 April 24, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$313
(United Airlines)

Popular in

December

Cheapest in

January

Average price

$479
Provider with most accurate pricing for Lambert-St Louis-Billings Logan Intl flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Billings Logan Intl flights.
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From Lambert-St Louis to Billings Logan Intl
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($10 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from St. Louis to Billings

Cheapest flights from St. Louis to Billings
Explore the most affordable flight options available from St. Louis to Billings. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2025.

This United Airlines deal was found by Cheapflights users on 4/22. 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.
Thu 8/211:39 pmSTL - BIL
1 stop7h 55mUnited Airlines
Sun 8/247:00 amBIL - STL
1 stop4h 43mUnited Airlines
Deal found 4/22$313
This Delta deal was found by Cheapflights users on 4/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/102:18 pmSTL - BIL
2 stops9h 20mDelta
Sat 7/196:25 amBIL - STL
1 stop4h 07mDelta
Deal found 4/22$318
This American Airlines deal was found by Cheapflights users on 4/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/114:23 pmSTL - BIL
1 stop7h 43mAmerican Airlines
Mon 6/2312:36 pmBIL - STL
1 stop6h 54mAmerican Airlines
Deal found 4/22$389
This Alaska Airlines deal was found by Cheapflights users on 4/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/196:22 pmSTL - BIL
2 stops43h 55mAlaska Airlines
Thu 5/221:57 pmBIL - STL
1 stop9h 07mAlaska Airlines
Deal found 4/22$692

Cheapflights Fare Finder

Customize your flight search to find flights from St. Louis to Billings 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 April 24, 2025.
Use the filters below to find and compare flights from St. Louis to Billings that are best for you.

Fly from

St. Louis

Fly to

Billings

Route

Depart

Return

Price

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Thu 8/21

1:39 pm-8:34 pm

1 stop7h 55m

Billings Logan Intl

Sun 8/24

7:00 am-12:43 pm

1 stop4h 43m

$313

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Thu 7/10

2:18 pm-10:38 pm

2 stops9h 20m

Billings Logan Intl

Sat 7/19

6:25 am-11:32 am

1 stop4h 07m

$318

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Wed 6/11

4:23 pm-11:06 pm

1 stop7h 43m

Billings Logan Intl

Mon 6/23

12:36 pm-8:30 pm

1 stop6h 54m

$389

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Mon 5/19

6:22 pm-1:17 pm

2 stops43h 55m

Billings Logan Intl

Thu 5/22

1:57 pm-12:04 am

1 stop9h 07m

$692

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Compare providers for flights from St. Louis to Billings

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 Billings in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice 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-Billings flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Billings flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Billings flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Billings flights, Cheapflights users trust eDreams the most. eDreams 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-Billings 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 Billings

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

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

Currently, February is the cheapest month in which you can book a flight from St. Louis to Billings (average of $396). Flying from St. Louis to Billings in June is currently the most expensive (average of $581). 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.

What is the cheapest time of day to fly from STL to BIL?

Find hourly flight availability from St. Louis to Billings. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 24, 2025.

One of the essential ways to save on airfare from St. Louis to Billings is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 34% on airfare.

Rainfall in Billings by month

Plan your trip to Billings by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Billings ranges from 0.5 - 2.2 inches per month. May is typically the wettest month, when rainfall can reach 2.2 in. January is typically the driest time to visit Billings when rainfall is around 0.5 in.

Temperature in Billings by month

Plan your trip to Billings by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Billings, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.6 F).

Reviews of airlines servicing Billings

Get insights into the airlines that provide service to Billings. 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 Billings. Reviews last updated April 24, 2025.
Alaska Airlines
8.0
Very good
9,918 reviews

Entertainment

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,918 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Entertainment

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,920 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Entertainment

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,685 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Entertainment

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Entertainment

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

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

  • What are the cheapest airlines flying from St. Louis to Billings round-trip?

    United Airlines, at $313, was found to be the cheapest airline from St. Louis to Billings.Alternate airlines to your destination round-trip include Delta and American Airlines. United Airlines is currently priced 28% below the average price you’ll pay for this route.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from St. Louis to Billings (average of $396). Flying from St. Louis to Billings in June is currently the most expensive (average of $581). 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.

See more FAQs

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Top 3 airlines flying from St. Louis to Billings

Discover the top 3 airlines that operate flights from St. Louis to Billings. 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 April 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$236Average$325FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$268Average$433FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$278Average$487FlexibilityNo cancel feeOn-time69%

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