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

United Airlines, Delta, and American Airlines can get you from St. Louis to Billings in just under 6h 14m. Your travel time can differ by up to 4h 55m. 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 $280, was found to be the cheapest airline from St. Louis to Billings. An alternate airline flying to your destination would be United Airlines. Delta is currently priced 46% 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 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 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.

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.

$162+ Cheap Flights from St. Louis to Billings

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Cheap flight deals from St. Louis to Billings

Cheapest

Best

Last-minute

One-way

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 25, 2026.

Thu 12/105:00 am -

1 stop8h 56m

Sat 12/121:28 pm -

1 stop7h 52m

Deal found 10/23

$349

Sat 12/510:50 am -

2 stops11h 09m

Fri 12/112:33 pm -

1 stop5h 24m

Deal found 10/22

$354

Sat 12/55:00 pm -

1 stop6h 28m

Fri 12/116:21 pm -

1 stop5h 25m

Deal found 10/22

$369

Fri 12/257:05 am -

1 stop6h 14m

Tue 1/55:45 am -

2 stops10h 09m

Deal found 10/22

$374

Fri 11/62:54 pm -

1 stop6h 46m

Tue 11/101:54 pm -

1 stop7h 05m

Deal found 10/22

$399

Fri 11/64:39 pm -

1 stop6h 51m

Tue 11/107:00 am -

2 stops7h 43m

Deal found 10/22

$404

Thu 12/106:30 am -

2 stops7h 54m

Sat 12/127:00 am -

2 stops10h 16m

Deal found 10/23

$494

Fri 12/259:35 am -

2 stops8h 40m

Tue 1/57:00 am -

2 stops9h 50m

Deal found 10/22

$582

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 25, 2026.

Sat 12/510:50 am -

2 stops11h 09m

Fri 12/112:33 pm -

1 stop5h 24m

Deal found 10/22

$354

Fri 12/257:05 am -

1 stop6h 14m

Tue 1/55:45 am -

2 stops10h 09m

Deal found 10/22

$374

Fri 11/62:54 pm -

1 stop6h 46m

Tue 11/101:54 pm -

1 stop7h 05m

Deal found 10/22

$399

Sat 1/98:52 am -

1 stop7h 40m

Tue 1/122:38 pm -

1 stop5h 00m

Deal found 10/21

$459

Find flight deals from St. Louis to Billings

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$349 (American Airlines)
One-way from	$162 (Kiwi.com)
Popular in	July
Cheapest in	March
Average price	$706

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. 19% potential increase in price ($129 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($27 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisBillings

STL Lambert-St Louis - BIL Billings Logan Intl

STLBIL

Lambert-St Louis

Tue 11/24

9:09 am-9:21 pm

2 stops37h 12m

Billings Logan Intl

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$162

St. LouisBillings

STL Lambert-St Louis - BIL Billings Logan Intl

STLBIL

Lambert-St Louis

Sat 12/5

10:50 am-8:59 pm

2 stops11h 09m

Billings Logan Intl

Fri 12/11

2:33 pm-8:57 pm

1 stop5h 24m

$354

St. LouisBillings

STL Lambert-St Louis - BIL Billings Logan Intl

STLBIL

Lambert-St Louis

Fri 12/25

7:05 am-12:19 pm

1 stop6h 14m

Billings Logan Intl

Tue 1/5

5:45 am-4:54 pm

2 stops10h 09m

$374

St. LouisBillings

STL Lambert-St Louis - BIL Billings Logan Intl

STLBIL

Lambert-St Louis

Fri 11/6

2:54 pm-8:40 pm

1 stop6h 46m

Billings Logan Intl

Tue 11/10

1:54 pm-9:59 pm

1 stop7h 05m

$399

Quickest round-trip

St. LouisBillings

STL Lambert-St Louis - BIL Billings Logan Intl

STLBIL

Lambert-St Louis

Sat 1/9

8:52 am-3:32 pm

1 stop7h 40m

Billings Logan Intl

Tue 1/12

2:38 pm-8:38 pm

1 stop5h 00m

$459

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/23

Sorted by cheapest first

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 Accuracy1 star	Trust Score*3 stars
FlightHub	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 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.

STL-BIL

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 a feel of what it's like to fly with Delta and United 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

7.8

Good

8,678 reviews

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

Delta

7.8

Good

8,678 reviews

Delta

7.8

Good

8,678 reviews

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

United Airlines

7.3

Good

10,432 reviews

Delta

7.8

Good

8,678 reviews

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

Related info for your journey

How long is the flight from St. Louis to Billings?
United Airlines, Delta, and American Airlines can get you from St. Louis to Billings in just under 6h 14m. Your travel time can differ by up to 4h 55m. 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 $280, was found to be the cheapest airline from St. Louis to Billings. An alternate airline flying to your destination would be United Airlines. Delta is currently priced 46% 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

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Top 2 airlines flying from St. Louis to Billings

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$280	Average$413	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$338	Average$539	FlexibilityNo cancel fee	On-time69%

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$162+ 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 11/24. 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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2. Select your favorite providers

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Cheap 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 25, 2026.

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 25, 2026.

Best flights from St. Louis to BillingsDiscover 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 25, 2026.

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 25, 2026.

Last-minute flights from St. Louis to BillingsDiscover last-minute flight deals from St. Louis to Billings. Data last updated October 25, 2026 and is based on user searches.

Discover last-minute flight deals from St. Louis to Billings. Data last updated October 25, 2026 and is based on user searches.

One-way flights from St. Louis to BillingsSearch for one-way flight options from St. Louis to Billings. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.

Search for one-way flight options from St. Louis to Billings. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.

Find flight deals from St. Louis to Billings

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Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

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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.

Reviews of airlines servicing Billings

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

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?

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.

Other flights to Billings

Explore flights to Billings departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 25, 2026.

Complete your trip

Complete your trip to Billings by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from St. Louis to Billings by cabin class

Find flights from St. Louis to Billings, based on your preferred cabin class, be it economy, premium economy, business, or first class.

St. Louis and Billings flights

Browse other St. Louis and Billings flight options. Last updated on October 25, 2026.

Other flights from St. Louis

Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on October 25, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Top 2 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 25, 2026.

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 25, 2026.

Last-minute flights from St. Louis to Billings
Discover last-minute flight deals from St. Louis to Billings. Data last updated October 25, 2026 and is based on user searches.

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 25, 2026.