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 6h 20m. Your travel time can differ by up to 1h 06m. 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 $278, 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 43% below the average price you’ll pay for this route.

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.

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).

What are the most popular airlines that fly from St. Louis to Billings?

Before booking your flight from St. Louis to Billings check out the most popular airlines for this route: United Airlines, American Airlines or Delta.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from St. Louis to Billings as you normally would.

Most accurate provider : When it comes to deals on St. Louis-Billings flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-Billings flight deals on Cheapflights vs. eDreams >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.

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.

$167+ Cheap Flights from St. Louis to Billings

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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 October 28, 2025.

Sat 12/139:00 amSTL - BIL

1 stop7h 26mUnited Airlines

Thu 12/256:35 amBIL - STL

1 stop5h 45mUnited Airlines

Deal found 10/27

$333

Mon 12/19:54 pmSTL - BIL

2 stops44h 30mMultiple Airlines

Thu 12/251:18 pmBIL - STL

1 stop29h 29mMultiple Airlines

Deal found 10/27

$340

Tue 11/259:00 amSTL - BIL

1 stop5h 23mUnited Airlines

Tue 12/22:40 pmBIL - STL

1 stop5h 17mUnited Airlines

Deal found 10/27

$352

Mon 11/245:34 pmSTL - BIL

1 stop6h 50mDelta

Mon 12/16:24 pmBIL - STL

1 stop5h 22mDelta

Deal found 10/27

$390

Mon 12/19:54 pmSTL - BIL

2 stops44h 30mMultiple Airlines

Sat 12/205:28 pmBIL - STL

1 stop26h 57mMultiple Airlines

Deal found 10/27

$411

Thu 12/259:00 amSTL - BIL

1 stop5h 24mUnited Airlines

Thu 12/252:40 pmBIL - STL

1 stop6h 42mUnited Airlines

Deal found 10/27

$432

Fri 12/1910:10 pmSTL - BIL

1 stop19h 28mMultiple Airlines

Mon 12/2210:02 amBIL - STL

1 stop10h 23mMultiple Airlines

Deal found 10/26

$469

Sat 12/137:43 pmSTL - BIL

2 stops40h 45mMultiple Airlines

Sat 12/205:28 pmBIL - STL

1 stop26h 57mMultiple Airlines

Deal found 10/27

$478

Best flights from St. Louis to Billings
Discover carefully curated flight deals from St. Louis to Billings that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 28, 2025.

Sat 12/139:00 amSTL - BIL

1 stop7h 26mUnited Airlines

Thu 12/256:35 amBIL - STL

1 stop5h 45mUnited Airlines

Deal found 10/27

$333

Mon 12/19:54 pmSTL - BIL

2 stops44h 30mMultiple Airlines

Thu 12/251:18 pmBIL - STL

1 stop29h 29mMultiple Airlines

Deal found 10/27

$340

Fri 3/275:30 pmSTL - BIL

1 stop6h 20mDelta

Tue 3/316:15 amBIL - STL

1 stop7h 16mDelta

Deal found 10/26

$366

Tue 11/259:00 amSTL - BIL

1 stop5h 23mUnited Airlines

Tue 12/22:40 pmBIL - STL

1 stop5h 17mUnited Airlines

Deal found 10/27

$352

Mon 11/245:34 pmSTL - BIL

1 stop6h 50mDelta

Mon 12/16:24 pmBIL - STL

1 stop5h 22mDelta

Deal found 10/27

$390

Mon 12/19:54 pmSTL - BIL

2 stops44h 30mMultiple Airlines

Sat 12/205:28 pmBIL - STL

1 stop26h 57mMultiple Airlines

Deal found 10/27

$411

Thu 12/259:00 amSTL - BIL

1 stop5h 24mUnited Airlines

Thu 12/252:40 pmBIL - STL

1 stop6h 42mUnited Airlines

Deal found 10/27

$432

Fri 12/1910:10 pmSTL - BIL

1 stop19h 28mMultiple Airlines

Mon 12/2210:02 amBIL - STL

1 stop10h 23mMultiple Airlines

Deal found 10/26

$469

Last-minute flights from St. Louis to Billings
Discover last-minute flight deals from St. Louis to Billings. Data last updated October 28, 2025 and is based on user searches.

Thu 11/67:00 amSTL - BIL

1 stop7h 30mAmerican Airlines

Sat 11/86:00 amBIL - STL

1 stop5h 37mAmerican Airlines

Deal found 10/27

$607

Thu 11/611:36 amSTL - BIL

2 stops11h 49mDelta

Sat 11/85:25 amBIL - STL

1 stop7h 14mDelta

Deal found 10/27

$612

Fri 11/74:43 pmSTL - BIL

1 stop5h 35mUnited Airlines

Tue 11/115:00 amBIL - STL

1 stop6h 39mUnited Airlines

Deal found 10/28

$539

Mon 11/245:34 pmSTL - BIL

1 stop6h 50mDelta

Mon 12/16:24 pmBIL - STL

1 stop5h 22mDelta

Deal found 10/27

$390

Mon 11/248:25 amSTL - BIL

2 stops13h 53mUnited Airlines

Mon 12/15:57 pmBIL - STL

2 stops17h 18mUnited Airlines

Deal found 10/27

$737

Tue 11/259:00 amSTL - BIL

1 stop5h 23mUnited Airlines

Tue 12/22:40 pmBIL - STL

1 stop5h 17mUnited Airlines

Deal found 10/27

$352

One-way flights from St. Louis to Billings
Search for one-way flight options from St. Louis to Billings. Find affordable one-way fares based on user searches. Data last updated October 28, 2025.

Fri 12/126:30 amSTL - BIL

1 stop5h 37mDelta

Deal found 10/28

$167

Fri 12/197:43 pmSTL - BIL

2 stops21h 55mMultiple Airlines

Deal found 10/28

$207

Sat 12/136:00 amSTL - BIL

2 stops12h 42mDelta

Deal found 10/27

$265

Sat 12/137:43 pmSTL - BIL

3 stops40h 45mMultiple Airlines

Deal found 10/27

$339

Fri 11/73:59 pmSTL - BIL

1 stop6h 19mAmerican Airlines

Deal found 10/28

$341

Fri 11/73:59 pmSTL - BIL

2 stops8h 19mDelta

Deal found 10/28

$346

Fri 11/72:12 pmSTL - BIL

3 stops34h 55mMultiple Airlines

Deal found 10/28

$691

Fri 12/126:15 amSTL - BIL

3 stops11h 58mUnited Airlines

Deal found 10/28

$1,330

Cheap flight deals from St. Louis to Billings

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$333 (United Airlines)
One-way from	$167 (Delta)
Popular in	December
Cheapest in	January
Average price	$402

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

High demand for flights, 8% potential price rise

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Sat 12/13

9:00 am-3:26 pm

1 stop7h 26m

Billings Logan Intl

Thu 12/25

6:35 am-1:20 pm

1 stop5h 45m

$333

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Mon 12/1

9:54 pm-5:24 pm

2 stops44h 30m

Billings Logan Intl

Thu 12/25

1:18 pm-7:47 pm

1 stop29h 29m

$340

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Tue 11/25

9:00 am-1:23 pm

1 stop5h 23m

Billings Logan Intl

Tue 12/2

2:40 pm-8:57 pm

1 stop5h 17m

$352

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Fri 3/27

5:30 pm-10:50 pm

1 stop6h 20m

Billings Logan Intl

Tue 3/31

6:15 am-2:31 pm

1 stop7h 16m

$366

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Mon 11/24

5:34 pm-11:24 pm

1 stop6h 50m

Billings Logan Intl

Mon 12/1

6:24 pm-12:46 am

1 stop5h 22m

$390

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Mon 12/1

9:54 pm-5:24 pm

2 stops44h 30m

Billings Logan Intl

Sat 12/20

5:28 pm-9:25 pm

1 stop26h 57m

$411

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Thu 12/25

9:00 am-1:24 pm

1 stop5h 24m

Billings Logan Intl

Thu 12/25

2:40 pm-10:22 pm

1 stop6h 42m

$432

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Fri 12/19

10:10 pm-4:38 pm

1 stop19h 28m

Billings Logan Intl

Mon 12/22

10:02 am-9:25 pm

1 stop10h 23m

$469

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Sat 12/13

5:00 pm-11:26 pm

1 stop7h 26m

$167

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Fri 12/12

6:30 am-11:07 am

1 stop5h 37m

$167

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 14 results

Compare providers for flights from St. Louis to Billings

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 October.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-Billings flight deals on Cheapflights vs. eDreams >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, January is the cheapest month in which you can book a flight from St. Louis to Billings (average of $264). Flying from St. Louis to Billings in March is currently the most expensive (average of $489). 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 Billings

Get a feel of what it's like to fly with Delta, United Airlines, and American 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

7,994 reviews

Reviews

1 / 20

8.0

Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Delta

7.9

Good

7,994 reviews

Delta

7.9

Good

7,994 reviews

Reviews

1 / 20

8.0

Excellent

Matthew,Oct 2025

GSP - ATL

United Airlines

7.4

Good

9,001 reviews

Delta

7.9

Good

7,994 reviews

Reviews

1 / 20

8.0

Excellent

Matthew,Oct 2025

GSP - ATL

American Airlines

7.2

Good

11,032 reviews

Delta

7.9

Good

7,994 reviews

Reviews

1 / 20

8.0

Excellent

Matthew,Oct 2025

GSP - ATL

Related info for your journey

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 6h 20m. Your travel time can differ by up to 1h 06m. 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 $278, 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 43% 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, January is the cheapest month in which you can book a flight from St. Louis to Billings (average of $264). Flying from St. Louis to Billings in March is currently the most expensive (average of $489). 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

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Other flights to Billings

Top 3 airlines flying from St. Louis to Billings

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$278	Average$375	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$312	Average$514	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$371	Average$431	FlexibilityNo cancel fee	On-time71%

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$167+ 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 12/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Billings with Cheapflights

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Find flight deals from St. Louis to Billings

Cheapest flights from St. Louis to BillingsExplore 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 October 28, 2025.

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 October 28, 2025.

Cheap flight deals from St. Louis to Billings

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

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 October.

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.

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?

Reviews of airlines servicing Billings

Get a feel of what it's like to fly with Delta, United Airlines, and American 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.

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?

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

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

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

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

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

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.

Top 3 airlines flying from St. Louis to Billings

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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 October 28, 2025.