HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Billings

$157+ Cheap flights from St. Louis to Billings (STL - BIL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BIL
Apr 9 — Apr 161
Wed 4/9
Wed 4/16
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to Billings with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 4, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$313
(Delta)

One-way from

$157
(Delta)

Popular in

December

Cheapest in

January

Average price

$492
Provider with most accurate pricing for Lambert-St Louis-Billings Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Billings Logan Intl flights.
Search Deals
From Lambert-St Louis to Billings Logan Intl
Search Deals
One-way flight from Lambert-St Louis to Billings Logan Intl
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($7 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

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 4, 2025.

This Delta deal was found by Cheapflights users on 4/2. 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.
Tue 9/165:30 pmSTL - BIL
1 stop6h 14mDelta
Tue 9/306:25 amBIL - STL
1 stop6h 51mDelta
Deal found 4/2$313
This American Airlines deal was found by Cheapflights users on 4/3. 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 36mAmerican Airlines
Mon 6/2312:36 pmBIL - STL
1 stop6h 54mAmerican Airlines
Deal found 4/3$347
This United Airlines deal was found by Cheapflights users on 4/2. 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.
Fri 9/194:30 pmSTL - BIL
1 stop7h 09mUnited Airlines
Tue 9/302:40 pmBIL - STL
1 stop7h 38mUnited Airlines
Deal found 4/2$393
This Alaska Airlines deal was found by Cheapflights users on 4/2. 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.
Sun 9/143:17 pmSTL - BIL
1 stop9h 54mAlaska Airlines
Fri 9/266:00 amBIL - STL
1 stop16h 59mAlaska Airlines
Deal found 4/2$496

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 4, 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

Tue 9/16

5:30 pm-10:44 pm

1 stop6h 14m

Billings Logan Intl

Tue 9/30

6:25 am-2:16 pm

1 stop6h 51m

$313

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Wed 6/11

4:23 pm-10:59 pm

1 stop7h 36m

Billings Logan Intl

Mon 6/23

12:36 pm-8:30 pm

1 stop6h 54m

$347

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Fri 9/19

4:30 pm-10:39 pm

1 stop7h 09m

Billings Logan Intl

Wed 9/24

2:40 pm-8:59 pm

1 stop5h 19m

$393

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Sun 9/14

3:17 pm-12:11 am

1 stop9h 54m

Billings Logan Intl

Fri 9/26

6:00 am-11:59 pm

1 stop16h 59m

$496

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Thu 5/8

6:05 pm-10:58 pm

1 stop5h 53m

$157

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Thu 5/8

10:10 am-2:00 pm

3 stops28h 50m

$261

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/3

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*3 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 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-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 4, 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 4, 2025.
Alaska Airlines
8.0
Very good
9,836 reviews

Entertainment

7.1

Comfort

7.9

Food

7.1

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,836 reviews
Alaska Airlines
8.0
Very good
9,836 reviews

Entertainment

7.1

Comfort

7.9

Food

7.1

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,897 reviews
Alaska Airlines
8.0
Very good
9,836 reviews

Entertainment

7.1

Comfort

7.9

Food

7.1

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,618 reviews
Alaska Airlines
8.0
Very good
9,836 reviews

Entertainment

7.1

Comfort

7.9

Food

7.1

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,836 reviews

Entertainment

7.1

Comfort

7.9

Food

7.1

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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?

    Delta, at $313, was found to be the cheapest airline from St. Louis to Billings.Alternate airlines to your destination round-trip include American Airlines and United Airlines. Delta is currently priced 29% 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to Billings

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to Kalispell flights
Kansas City to Bozeman flights
St. Louis to Bozeman flights
Kansas City to Missoula flights
St. Louis to Missoula flights
St. Louis to Kalispell flights
Springfield to Bozeman flights
Kansas City to Billings flights
St. Louis to Great Falls flights
Springfield to Kalispell flights
St. Louis to Helena flights
Kansas City to Great Falls flights
Springfield to Billings flights
Springfield to Missoula flights
Springfield to Great Falls flights
St. Louis to Cody flights
St. Louis to West Yellowstone flights
Kansas City to West Yellowstone flights
St. Louis to Butte flights
Kansas City to Helena flights
Springfield to Helena flights
Springfield to Butte flights
Springfield to West Yellowstone flights
Kansas City to Cody flights
Joplin to Missoula flights
Joplin to Bozeman flights
Columbia to West Yellowstone flights
Columbia to Missoula flights
Columbia to Bozeman flights

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 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$236Average$338FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$268Average$433FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$278Average$492FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.