HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Billings

$227+ 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 7/2. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BIL
Apr 10 — Apr 171
Fri 4/10
Fri 4/17
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

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 March 11, 2026.

This Delta deal was found by Cheapflights users on 3/7. 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 4/213:25 pm
STL
-
BIL
1 stop5h 41m
Delta
Tue 4/286:24 am
BIL
-
STL
1 stop4h 08m
Delta
Deal found 3/7$299
This Delta deal was found by Cheapflights users on 3/9. 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 5/281:56 pm
STL
-
BIL
2 stops9h 56m
Delta
Tue 6/25:35 am
BIL
-
STL
1 stop6h 57m
Delta
Deal found 3/9$304
This United Airlines deal was found by Cheapflights users on 3/8. 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 5/225:10 am
STL
-
BIL
1 stop5h 25m
United Airlines
Tue 5/266:00 pm
BIL
-
STL
1 stop4h 57m
United Airlines
Deal found 3/8$310
This United Airlines deal was found by Cheapflights users on 3/10. 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 5/295:41 pm
STL
-
BIL
1 stop5h 34m
United Airlines
Tue 6/26:00 pm
BIL
-
STL
1 stop4h 57m
United Airlines
Deal found 3/10$319
This United Airlines deal was found by Cheapflights users on 3/6. 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 6/45:10 am
STL
-
BIL
1 stop5h 25m
United Airlines
Sun 6/74:10 pm
BIL
-
STL
1 stop6h 47m
United Airlines
Deal found 3/6$327
This United Airlines deal was found by Cheapflights users on 3/6. 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 5/289:23 am
STL
-
BIL
2 stops8h 56m
United Airlines
Mon 6/16:00 pm
BIL
-
STL
1 stop4h 57m
United Airlines
Deal found 3/6$332
This United Airlines deal was found by Cheapflights users on 3/10. 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.
Tue 4/79:10 am
STL
-
BIL
2 stops12h 47m
United Airlines
Tue 4/142:35 pm
BIL
-
STL
1 stop5h 19m
United Airlines
Deal found 3/10$334
This United Airlines deal was found by Cheapflights users on 3/10. 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 5/299:23 am
STL
-
BIL
2 stops8h 56m
United Airlines
Wed 6/37:00 am
BIL
-
STL
1 stop4h 42m
United Airlines
Deal found 3/10$364
This United Airlines deal was found by Cheapflights users on 3/7. 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 5/12:35 pm
STL
-
BIL
1 stop7h 22m
United Airlines
Mon 5/112:30 pm
BIL
-
STL
1 stop5h 13m
United Airlines
Deal found 3/7$373
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Tue 3/245:15 am
STL
-
BIL
1 stop5h 38m
United Airlines
Sat 3/285:50 pm
BIL
-
STL
1 stop4h 44m
United Airlines
Deal found 3/9$374

Find 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 March 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$299
(Delta)

One-way from

$227
(Alaska Airlines)

Popular in

May

Cheapest in

November

Average price

$386
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. 13% potential increase in price ($70 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 March 11, 2026.
Use the filters below to find and compare flights from St. Louis to Billings that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Fri 8/28

5:10 am-9:41 am

1 stop5h 31m

Billings Logan Intl

Mon 8/31

2:25 pm-8:39 pm

1 stop5h 14m

$299
Quickest round-trip

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Thu 5/28

5:10 am-9:35 am

1 stop5h 25m

Billings Logan Intl

Mon 6/1

6:00 pm-11:57 pm

1 stop4h 57m

$299

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Thu 5/28

1:56 pm-10:52 pm

2 stops9h 56m

Billings Logan Intl

Tue 6/2

5:35 am-1:32 pm

1 stop6h 57m

$304

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Fri 5/22

5:10 am-9:35 am

1 stop5h 25m

Billings Logan Intl

Tue 5/26

6:00 pm-11:57 pm

1 stop4h 57m

$310

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Fri 5/29

5:41 pm-10:15 pm

1 stop5h 34m

Billings Logan Intl

Tue 6/2

6:00 pm-11:57 pm

1 stop4h 57m

$319

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Thu 5/28

4:48 pm-10:51 pm

1 stop7h 03m

Billings Logan Intl

Tue 6/2

6:00 pm-11:57 pm

1 stop4h 57m

$319

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Fri 5/29

1:56 pm-10:52 pm

2 stops9h 56m

Billings Logan Intl

Tue 6/2

5:35 am-1:32 pm

1 stop6h 57m

$324

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Thu 6/4

5:10 am-9:35 am

1 stop5h 25m

Billings Logan Intl

Sun 6/7

4:10 pm-11:57 pm

1 stop6h 47m

$327

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Fri 5/29

9:23 am-5:19 pm

2 stops8h 56m

Billings Logan Intl

Wed 6/3

7:00 am-12:42 pm

1 stop4h 42m

$364

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Fri 5/29

5:10 am-9:35 am

1 stop5h 25m

Billings Logan Intl

Sun 5/31

6:00 pm-11:57 pm

1 stop4h 57m

$379

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/8

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

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 March.
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-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.

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 March 11, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andAmerican Airlines from St. Louis to Billings by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,278 reviews

Overall

7.9

Food

7.2

Crew

8.5

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,278 reviews
Delta
7.9
Good
8,278 reviews

Overall

7.9

Food

7.2

Crew

8.5

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,414 reviews
Delta
7.9
Good
8,278 reviews

Overall

7.9

Food

7.2

Crew

8.5

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.1
Good
11,419 reviews
Delta
7.9
Good
8,278 reviews

Overall

7.9

Food

7.2

Crew

8.5

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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.

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

    United Airlines and Delta can get you from St. Louis to Billings in just under 5h 31m. Your travel time can differ by up to 4h 25m. The distance from St. Louis to Billings is about 1045 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Delta, at $322, was found to be the cheapest airline from St. Louis to Billings.Alternate airlines to your destination round-trip include United Airlines and American Airlines. Delta 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.

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.

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 March 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$322Average$386FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$332Average$466FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$385Average$431FlexibilityNo cancel feeOn-time71%

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.