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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 7/6. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BIL
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$313
(Delta)

One-way from

$157
(United Airlines)

Popular in

May

Cheapest in

January

Average price

$486
From Lambert-St Louis to Billings Logan Intl
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One-way flight from Lambert-St Louis to Billings Logan Intl
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Highest demand for flights based on searches. 15% potential increase in price ($82 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/245:37 pmSTL - BIL
1 stop6h 33mDelta
Sun 8/315:25 amBIL - STL
1 stop7h 04mDelta
Deal found 6/10$313
This American Airlines deal was found by Cheapflights users on 6/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/296:00 amSTL - BIL
1 stop7h 02mAmerican Airlines
Wed 8/65:49 amBIL - STL
1 stop11h 34mAmerican Airlines
Deal found 6/9$368
This United Airlines deal was found by Cheapflights users on 6/10. 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 6/245:20 amSTL - BIL
1 stop5h 17mUnited Airlines
Tue 7/15:00 amBIL - STL
1 stop6h 46mUnited Airlines
Deal found 6/10$387
This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/36:36 pmSTL - BIL
2 stops28h 00mMultiple Airlines
Mon 7/710:26 pmBIL - STL
2 stops35h 03mMultiple Airlines
Deal found 6/11$494
This Alaska Airlines deal was found by Cheapflights users on 6/12. 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.
Thu 6/197:20 amSTL - BIL
2 stops17h 48mAlaska Airlines
Mon 6/233:45 pmBIL - STL
2 stops31h 14mAlaska Airlines
Deal found 6/12$1,450

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 June 12, 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 7/24

5:37 pm-11:10 pm

1 stop6h 33m

Billings Logan Intl

Sun 8/31

5:25 am-1:29 pm

1 stop7h 04m

$313

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Tue 7/29

6:00 am-12:02 pm

1 stop7h 02m

Billings Logan Intl

Wed 8/6

5:49 am-6:23 pm

1 stop11h 34m

$368

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Tue 6/24

5:20 am-9:37 am

1 stop5h 17m

Billings Logan Intl

Tue 7/1

5:00 am-12:46 pm

1 stop6h 46m

$387

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Thu 7/3

6:36 pm-9:36 pm

2 stops28h 00m

Billings Logan Intl

Mon 7/7

10:26 pm-10:29 am

2 stops35h 03m

$494

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Wed 7/2

3:24 pm-12:08 am

1 stop9h 44m

Billings Logan Intl

Mon 7/7

2:03 pm-11:59 pm

1 stop8h 56m

$1,973

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Sun 7/6

5:15 am-9:38 am

1 stop5h 23m

$157

St. LouisBillings

STL - BIL

STLBIL

Lambert-St Louis

Sun 7/6

6:36 pm-9:36 pm

3 stops28h 00m

$346

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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 $396). Flying from St. Louis to Billings in June is currently the most expensive (average of $517). 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.

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 June 12, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta and United Airlines from St. Louis to Billings to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 33% 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 $396). Flying from St. Louis to Billings in June is currently the most expensive (average of $517). 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.

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$236Average$320FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$268Average$428FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$278Average$548FlexibilityNo cancel feeOn-time69%

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