STL - BIL

$162 Find Cheap Flights from St. Louis to Billings - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$349
Typical prices: $425-$640
Delta
Mon 2/12Sat 2/17
STL - BIL • 1 stop
Cheapest one-way
$162
Typical prices: $257-$327
Multiple Airlines
Sat 11/24
STL - BIL • 2 stops
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Billings. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
March
Cheapest • 32% price drop
July
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Salt Lake City (SLC)
Cheapest • Avg $400 (round-trip)
Denver Intl (DEN)
Shortest trip • 5h 17m (one-way)
Insights
Insights
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from St. Louis to Billings (STL-BIL)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Billings

Fri, Feb 12 - Wed, Feb 17
Delta Logo
3:45 pm - 7:48 pmSTL  Lambert-St Louis-BIL Billings Logan Intl
5h 03m1 stop Minneapolis St Paul
Delta Logo
5:45 am - 1:23 pmBIL  Billings Logan Intl-STL Lambert-St Louis
6h 38m1 stop Salt Lake City
$349Delta
Fri, Feb 19 - Mon, Feb 22
Delta Logo
3:45 pm - 7:48 pmSTL  Lambert-St Louis-BIL Billings Logan Intl
5h 03m1 stop Minneapolis St Paul
Delta Logo
6:15 am - 2:31 pmBIL  Billings Logan Intl-STL Lambert-St Louis
7h 16m1 stop Minneapolis St Paul
$349Delta
Thu, Dec 10 - Sat, Dec 12
American Airlines Logo
5:00 am - 12:56 pmSTL  Lambert-St Louis-BIL Billings Logan Intl
8h 56m1 stop Dallas/Fort Worth
American Airlines Logo
1:28 pm - 10:20 pmBIL  Billings Logan Intl-STL Lambert-St Louis
7h 52m1 stop Dallas/Fort Worth
$349American Airlines
Sat, Dec 5 - Fri, Dec 11
United Airlines Logo
10:50 am - 8:59 pmSTL  Lambert-St Louis-BIL Billings Logan Intl
11h 09m2 stops Chicago O'Hare Intl Denver Intl
United Airlines Logo
2:33 pm - 8:57 pmBIL  Billings Logan Intl-STL Lambert-St Louis
5h 24m1 stop Denver Intl
$354United Airlines
Thu, Dec 10 - Sat, Dec 12
United Airlines Logo
8:40 am - 1:24 pmSTL  Lambert-St Louis-BIL Billings Logan Intl
5h 44m1 stop Denver Intl
United Airlines Logo
7:00 am - 6:16 pmBIL  Billings Logan Intl-STL Lambert-St Louis
10h 16m2 stops Denver Intl Chicago O'Hare Intl
$354United Airlines
Fri, Feb 12 - Wed, Feb 17
Delta Logo
3:45 pm - 7:48 pmSTL  Lambert-St Louis-BIL Billings Logan Intl
5h 03m1 stop Minneapolis St Paul
Delta Logo
5:45 am - 2:31 pmBIL  Billings Logan Intl-STL Lambert-St Louis
7h 46m2 stops Salt Lake City Minneapolis St Paul
$354Delta
Thu, Feb 18 - Sun, Feb 21
United Airlines Logo
2:45 pm - 9:28 pmSTL  Lambert-St Louis-BIL Billings Logan Intl
7h 43m1 stop Denver Intl
United Airlines Logo
2:35 pm - 8:54 pmBIL  Billings Logan Intl-STL Lambert-St Louis
5h 19m1 stop Denver Intl
$364United Airlines
Fri, Dec 25 - Tue, Jan 5
Delta Logo
7:05 am - 12:19 pmSTL  Lambert-St Louis-BIL Billings Logan Intl
6h 14m1 stop Salt Lake City
Delta Logo
5:45 am - 1:23 pmBIL  Billings Logan Intl-STL Lambert-St Louis
6h 38m1 stop Salt Lake City
$369Delta
Fri, Nov 6 - Tue, Nov 10
American Airlines Logo
2:54 pm - 8:40 pmSTL  Lambert-St Louis-BIL Billings Logan Intl
6h 46m1 stop Dallas/Fort Worth
American Airlines Logo
1:54 pm - 9:59 pmBIL  Billings Logan Intl-STL Lambert-St Louis
7h 05m1 stop Dallas/Fort Worth
$399American Airlines
Thu, Feb 18 - Mon, Feb 22
American Airlines Logo
5:03 am - 12:58 pmSTL  Lambert-St Louis-BIL Billings Logan Intl
8h 55m1 stop Dallas/Fort Worth
American Airlines Logo
7:00 am - 1:41 pmBIL  Billings Logan Intl-STL Lambert-St Louis
5h 41m1 stop Dallas/Fort Worth
$429American Airlines
Booking Insights

Price, demand and travel trends for St. Louis to Billings flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from St. Louis to Billings?

Round-trip flights from St. Louis to Billings typically range from $425 to $640. The lowest price found in the past 5 days was $349, on Delta.

What's the cheapest day of the week to fly from St. Louis to Billings?

Based on deals KAYAK users found in the last 12 months, Saturday is the cheapest day of the week to fly from St. Louis to Billings. It’s 13% cheaper than the average day, while Tuesday is the most expensive, with prices 30% higher.

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Key details for St. Louis to Billings flights

Low season

January

Cheapest flight

$162
Beat the crowds with an average 84% drop in travelers.
The most popular month to fly with an average 120% increase in travelers.
One-way flight from St. Louis to Billings

When to book flights from St. Louis to Billings

Are your dates flexible? Find out the best times to travel from St. Louis to Billings based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your St. Louis to Billings flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from St. Louis to Billings?

    Only Economy Class is available on flights from St. Louis to Billings.

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

    A nonstop flight from St. Louis to Billings takes 00m, covering 1,045 miles.

  • Do I need a passport to fly from St. Louis to Billings?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a St. Louis to Billings flight?

    Round-trip flights from St. Louis to Billings range from $425 to $640, with an average of $488 over the past 12 months. Anything below $425 counts as a good deal.

  • Have flight prices from St. Louis to Billings changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $349 to $920. That means the highest observed fare was about 3x higher than the lowest one.

  • How are flight prices from St. Louis to Billings looking right now?

    One-way fares from St. Louis to Billings are currently higher than usual. Average one-way flight prices are about $294, which is 10% above the typical average for this route.

  • What car rental options are available at Billings Logan Intl Airport (BIL)?

    Billings Logan Intl Airport (BIL) hosts 5 major car rental companies, with daily rates starting from around $11 for economy cars. Top options include:

    • Rent-A-Wreck
    • Budget
    • Alamo
    • Hertz
    • Enterprise Rent-A-Car

  • Which airports can I use when flying from St. Louis to Billings?

    Flights from St. Louis to Billings usually depart from Lambert-St Louis (STL) and arrive at Billings Logan Intl (BIL).

  • Which airports do connecting flights from St. Louis to Billings pass through?

    One-stop flights from St. Louis to Billings most commonly connect through:

    • Denver Intl (DEN) - 87% of one-stop connections
    • Dallas/Fort Worth (DFW) - 9% of one-stop connections
    • Salt Lake City (SLC) - 4% of one-stop connections

  • Can I save money by using flexible dates for flights from St. Louis to Billings?

    Yes. Flexible dates can save you up to 34% on flights from St. Louis to Billings. Saturday is the cheapest departure day at $425 round-trip on average, while Tuesday is the most expensive at $639, a difference of $214.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • How much time can I save by choosing a different layover airport from St. Louis to Billings?

    Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 5h 17m, compared with 5h 20m via Salt Lake City (SLC) and 6h 47m via Dallas/Fort Worth (DFW).

  • What is the time difference between St. Louis and Billings?

    Billings is 1 hour behind St. Louis (Mountain Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking St. Louis to Billings flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Saturday departure and avoid flying on Tuesday. On this route, Saturday flights average $425, about $214 less than Tuesday fares (33% savings) based on the last 12 months.
  • If you can choose when to travel, plan your St. Louis to Billings trip for March. Fares historically average $332 round-trip in that month - typically $456 less than the most expensive month, which is July (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Billings Logan Intl Airport.

    • Hilltop Inn by Riversage

More options for your flight from St. Louis to Billings

Complete your trip to Billings with a hotel stay or car rental

Car rentals in Billings
Hotels in Billings
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