STL - BIL

$273 Find Cheap Flights from St. Louis to Billings - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Billings departing on 8/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

Save 20% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$329
Typical prices: $364-$523
United Airlines
Tue 10/27Tue 11/3
STL - BIL • 1 stop
Cheapest one-way
$273
Multiple Airlines
Thu 8/13
STL - BIL • 1 stop
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Billings. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Chicago (ORD)
Cheapest • Avg $459 (round-trip)
Salt Lake City (SLC)
Shortest trip • 5h 09m (one-way)
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 100% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Billings!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Billings that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

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

Tue, Oct 27 - Tue, Nov 3
United Airlines Logo
8:50 am - 1:29 pm
STL
-
BIL
5h 39m
1 stop
United Airlines Logo
7:00 am - 12:38 pm
BIL
-
STL
4h 38m
1 stop
$329United Airlines
Wed, Aug 26 - Sun, Aug 30
United Airlines Logo
9:00 am - 1:21 pm
STL
-
BIL
5h 21m
1 stop
United Airlines Logo
4:40 pm - 11:31 pm
BIL
-
STL
5h 51m
1 stop
$329United Airlines
Mon, Aug 17 - Tue, Aug 25
Delta Logo
5:34 pm - 11:30 pm
STL
-
BIL
6h 56m
1 stop
Delta Logo
6:25 pm - 12:41 am
BIL
-
STL
5h 16m
1 stop
$329Delta
Thu, Sep 17 - Mon, Sep 21
Delta Logo
5:47 pm - 11:15 pm
STL
-
BIL
6h 28m
1 stop
Delta Logo
6:33 pm - 12:44 am
BIL
-
STL
5h 11m
1 stop
$329Delta
Thu, Aug 20 - Thu, Aug 27
American Airlines Logo
6:00 am - 10:50 am
STL
-
BIL
5h 50m
1 stop
American Airlines Logo
1:13 pm - 10:41 pm
BIL
-
STL
8h 28m
1 stop
$329American Airlines
Sun, Aug 23 - Sun, Aug 30
United Airlines Logo
5:10 am - 9:41 am
STL
-
BIL
5h 31m
1 stop
United Airlines Logo
7:00 am - 12:40 pm
BIL
-
STL
4h 40m
1 stop
$329United Airlines
Mon, Aug 17 - Tue, Aug 25
Delta Logo
5:34 pm - 11:30 pm
STL
-
BIL
6h 56m
1 stop
Delta Logo
6:25 pm - 8:08 am
BIL
-
STL
12h 43m
2 stops
$334Delta
Thu, Sep 17 - Mon, Sep 21
Multiple Airlines Logo
5:19 pm - 4:21 pm
STL
-
BIL
24h 02m
2 stops
Multiple Airlines Logo
5:22 pm - 11:32 am
BIL
-
STL
17h 10m
1 stop
$418Multiple Airlines
Sun, Sep 13 - Fri, Sep 18
Multiple Airlines Logo
10:20 am - 12:29 pm
STL
-
BIL
27h 09m
2 stops
Multiple Airlines Logo
5:11 pm - 11:32 am
BIL
-
STL
17h 21m
1 stop
$553Multiple Airlines
Fri, Sep 4 - Fri, Sep 4
American Airlines Logo
6:00 am - 11:50 am
STL
-
BIL
6h 50m
1 stop
American Airlines Logo
1:13 pm - 7:43 pm
BIL
-
STL
5h 30m
1 stop
$790American Airlines
Booking Insights

KAYAK's insights & trends for St. Louis to Billings flights

Get data-powered insights and trends into flights from St. Louis to Billings to help you find the cheapest flights, the best time to fly and much more.

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

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Billings departing in August.

Flight prices are below average for this route right now.

Flights to Billings from St. Louis usually cost between $386 and $566 in August.
The lowest price found in the past 5 days was $329 on United Airlines (Aug 26-Aug 30).

What is the cheapest month to fly from St. Louis to Billings?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Billings, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Billings is January, where tickets cost $0 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $788 and $580 respectively.

Find deals

Good to know

Low season

March

Cheapest flight

$273
Best time to beat the crowds with an average 29% drop in price.
Most popular time to fly with an average 70% increase in price.
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
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Billings

  • What is the cheapest flight from St. Louis to Billings?

    In the last 5 days, the lowest price for a flight from St. Louis to Billings was $273 for a one-way ticket and $329 for a round-trip.

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

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from St. Louis to Billings?

    When flying out of St. Louis you will be using Lambert-St Louis. You will be landing at Billings, also known as Billings Logan Intl.

  • Which aircraft models fly most regularly from St. Louis to Billings?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Billings?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between St. Louis and Billings, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from St. Louis to Billings, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Billings are Delta and United Airlines. With an average price for the route of $425 and an overall rating of 7.8, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $466 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from St. Louis to Billings?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Billings.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Billings?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Billings from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Billings?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Billings with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and BIL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Billings?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Billings from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from St. Louis to Billings

Information on your arrival and departure airports

St. Louis (STL)
Billings (BIL)