Cheap Flights from St Louis to Billings

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Flight deals from St Louis to Billings

Looking for a cheap last-minute deal or the best return flight from St Louis Airport to Billings Airport? If you want to travel next month, return fares start from $559. Find the lowest prices on one-way and return tickets right here.

Billings.$559 per passenger.Departing Thu, 17 Sep, returning Mon, 21 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from St Louis on Thu, 17 Sep, arriving in Billings.Inbound indirect flight with Delta, departs from Billings on Mon, 21 Sep, arriving in St Louis.Price includes taxes and charges.From $559, select.

Billings.$559 per passenger.Departing Mon, 10 Aug, returning Tue, 18 Aug.Return flight with Delta.Outbound indirect flight with Delta, departs from St Louis on Mon, 10 Aug, arriving in Billings.Inbound indirect flight with Delta, departs from Billings on Tue, 18 Aug, arriving in St Louis.Price includes taxes and charges.From $559, select.

Billings.$647 per passenger.Departing Wed, 15 Jul, returning Sat, 18 Jul.Return flight with Delta.Outbound indirect flight with Delta, departs from St Louis on Wed, 15 Jul, arriving in Billings.Inbound indirect flight with Delta, departs from Billings on Sat, 18 Jul, arriving in St Louis.Price includes taxes and charges.From $647, select.

Billings.$664 per passenger.Departing Sun, 20 Dec, returning Mon, 28 Dec.Return flight with Delta.Outbound indirect flight with Delta, departs from St Louis on Sun, 20 Dec, arriving in Billings.Inbound indirect flight with Delta, departs from Billings on Mon, 28 Dec, arriving in St Louis.Price includes taxes and charges.From $664, select.

Billings.$872 per passenger.Departing Tue, 20 Oct, returning Thu, 22 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from St Louis on Tue, 20 Oct, arriving in Billings.Inbound indirect flight with Delta, departs from Billings on Thu, 22 Oct, arriving in St Louis.Price includes taxes and charges.From $872, select.

Find the cheapest month to fly from St Louis to Billings

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like St Louis to Billings flights are currently cheapest in August.

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St Louis to Billings: Alternative routes

Compare routes from St Louis to Billings below. You may find an airport to fly into that's cheaper, faster, or easier than Billings.

Billings

5km from central Billings

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from $559

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St Louis to Billings: Flight information

The things to know before you go.

Cheapest flight found	$559
Cheapest month to fly	September

Finding cheap flights from St Louis to Billings: Frequently asked questions

How much are return flights from St Louis to Billings?

The best price we found for a return flight from St Louis to Billings is $559. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Which airlines fly direct from St Louis to Billings?

Currently, there are no airlines that fly direct from St Louis to Billings. But we found flights with one or more stops from $559.

How many flights are there a week from St Louis to Billings?

As of July 2026, there are no flights flying from St Louis to Billings.

When is the cheapest time to fly from St Louis to Billings?

The cheapest month to fly from St Louis to Billings is usually September.

Which upcoming date is cheapest to fly from St Louis Airport to Billings Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from St Louis Airport to Billings Airport on Thursday, 17 September 2026.

Can I get a direct flight from St Louis Airport to Billings Airport?

No airlines currently offer direct flights between St Louis Airport and Billings Airport. Most routes have one or more stops.

How can I find the best flight deal to Billings?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Billings but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Billings?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Billings is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from St Louis Airport to Billings with?

Currently, Delta offers the cheapest flight tickets to Billings.

Flying from St Louis Airport (STL) to Billings Airport (BIL): what you need to know

Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules worth sticking to. Be at the airport with enough time to catch your STL to BIL flight.
During popular months such as July, you'll want to get to the airport well in advance. Arrive two hours before a domestic departure and four hours ahead of an international flight whenever you're flying during a high season in general.
If you'd like to break up your flight, simply uncheck 'Direct flights only' when searching for your ticket from St Louis Airport to Billings Airport. Here are the top stopovers between STL and BIL:
- Chicago O'Hare International Airport
- Dallas Fort Worth International Airport
- Denver International Airport

How to find the cheapest flights from St Louis Airport (STL) to Billings Airport (BIL)

Right now, $451 is the lowest price we've found for a one-way St Louis Airport to Billings Airport flight. The best price for a return plane ticket is $559. Keep in mind that fares could change due to demand at the time of booking.
To find cheap tickets from STL to BIL, book early. Airlines typically offer their best fares when flights are first made available.
Getting cheap flights from St Louis Airport to Billings Airport is more likely if you're flexible with your dates. Use the 'Whole month' function to see the best prices throughout the month and land a great deal.
Spend less time searching for cheap flights from STL to BIL by creating a Price Alert. We'll send you an email or notification through the app when a new discounted fare appears.
Pick your ideal departure and arrival times, airlines and number of stops with the filters. Or sort your results by 'Cheapest' to find the best deals on flights from St Louis Airport to Billings Airport.

Handy information about St Louis Airport (STL)

The address for STL is 10701 Lambert International Blvd..
Of the departures from St Louis Airport, 76% land on time at their destination.
Central St Louis to St Louis Airport is around 24 kilometres. Depending on traffic, it'll take you about 25 minutes to get there if you're catching a taxi, ride-sharing or driving.
Catching public transport? You can expect a journey time of around 30 minutes.
Get your journey off to a hassle-free start by staying near STL. Whether you have an early flight from St Louis Airport to Billings Airport or just don't want to be rushed, these hotels are ideal:

Arriving at Billings Airport (BIL)

Book a hotel close to BIL if you're taking a late St Louis Airport to Billings Airport flight. Settle into one of these options and avoid the hassle of a long transfer:
Grab a Billings Airport rental car and discover Billings and beyond with your own wheels. Alamo, Budget and Rent a Wreck are leading providers you can book with here.
Book your vehicle from Billings Airport at least a few weeks before your departure to lock in the best possible deal. If you're planning to travel during peak season, it's a smart idea to book even earlier.

Getting from Billings Airport (BIL) to central Billings

BIL is located at 1901 Terminal Circle, Room 216.
Billings Airport is approximately 10 kilometres from the centre of Billings. The drive time takes around 15 minutes.
It takes around 30 minutes if you're travelling by public transport.

When to fly to Billings Airport (BIL)

It's time to pick your travel dates for your flight from St Louis Airport to Billings Airport. September is the busiest month to head to Billings. If you want a more low-key vibe, go in March.
Before locking in your flight from St Louis Airport to Billings Airport, consider the kind of weather you like. July is the warmest month in Billings, with the temperature ranging from 13ºC to 34ºC.
February sees average temperatures of between -18ºC and 8ºC. Look for cheap tickets from STL to BIL around that time if you like travelling in cooler conditions.

Explore more of the United States

Billings is always a good idea, but there are so many other corners of the United States waiting to be explored. Around 451 kilometres south-east of Billings, a trip to Rapid City will keep you busy. Start with leading sights like Dinosaur Park, President Abraham Lincoln Statue and Lakota Dream Museum and Monument.
If you're looking to explore another major destination in the United States, head for Missoula, about 434 kilometres west of Billings. Mt Jumbo, Lolo Natioal Forest and Missoula Art Museum are among its highlights.