$115 Cheap Flights from Bozeman (BZN) to St. Louis (STL)

View $115 flight on Fri, Feb 27, 2026Opens in a new window

Popular airlines from Bozeman Yellowstone Intl. Airport (BZN) to St. Louis Lambert Intl. Airport (STL)

Cheap Flights from Bozeman to St. Louis (BZN-STL)

Prices were available within the past 7 days and start at $115 for one-way flights and $228 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, Jan 28 - Sun, Feb 1
BZN
Bozeman
STL
St. Louis
$228 Roundtrip, just found
$228
Roundtrip
just found
Select Alaska Airlines flight, departing Wed, Jan 28 from Bozeman to St. Louis, returning Sun, Feb 1, priced at $228 just found
Delta
Tue, Jan 13 - Tue, Jan 27
BZN
Bozeman
STL
St. Louis
$257 Roundtrip, found 11 hours ago
$257
Roundtrip
found 11 hours ago
Select Delta flight, departing Tue, Jan 13 from Bozeman to St. Louis, returning Tue, Jan 27, priced at $257 found 11 hours ago
Southwest Airlines
Wed, Oct 29 - Wed, Nov 5
BZN
Bozeman
STL
St. Louis
$263 Roundtrip, found 2 days ago
$263
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Wed, Oct 29 from Bozeman to St. Louis, returning Wed, Nov 5, priced at $263 found 2 days ago
Alaska Airlines
Mon, Feb 16 - Fri, Feb 27
BZN
Bozeman
STL
St. Louis
$263 Roundtrip, found 11 hours ago
$263
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Mon, Feb 16 from Bozeman to St. Louis, returning Fri, Feb 27, priced at $263 found 11 hours ago
American Airlines
Wed, Oct 29 - Wed, Nov 5
BZN
Bozeman
STL
St. Louis
$267 Roundtrip, found 2 days ago
$267
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Oct 29 from Bozeman to St. Louis, returning Wed, Nov 5, priced at $267 found 2 days ago
Hawaiian Airlines
Fri, Jan 9 - Fri, Jan 23
BZN
Bozeman
STL
St. Louis
$267 Roundtrip, found 11 hours ago
$267
Roundtrip
found 11 hours ago
Select Hawaiian Airlines flight, departing Fri, Jan 9 from Bozeman to St. Louis, returning Fri, Jan 23, priced at $267 found 11 hours ago
Southwest Airlines
Wed, Oct 29 - Wed, Nov 5
BZN
Bozeman
STL
St. Louis
$268 Roundtrip, found 2 days ago
$268
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Wed, Oct 29 from Bozeman to St. Louis, returning Wed, Nov 5, priced at $268 found 2 days ago
Southwest Airlines
Wed, Oct 22 - Wed, Oct 29
BZN
Bozeman
STL
St. Louis
$273 Roundtrip, found 2 days ago
$273
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Wed, Oct 22 from Bozeman to St. Louis, returning Wed, Oct 29, priced at $273 found 2 days ago
Delta
Wed, Jan 14 - Tue, Jan 27
BZN
Bozeman
STL
St. Louis
$275 Roundtrip, found 11 hours ago
$275
Roundtrip
found 11 hours ago
Select Delta flight, departing Wed, Jan 14 from Bozeman to St. Louis, returning Tue, Jan 27, priced at $275 found 11 hours ago
Delta
Wed, Feb 11 - Mon, Feb 23
BZN
Bozeman
STL
St. Louis
$278 Roundtrip, found 11 hours ago
$278
Roundtrip
found 11 hours ago
Select Delta flight, departing Wed, Feb 11 from Bozeman to St. Louis, returning Mon, Feb 23, priced at $278 found 11 hours ago

Find the cheapest month to fly from Bozeman (BZN) to St. Louis (STL)

August is typically the cheapest month to fly

From $212 - $561 per traveler.

Alternative airports near St. Louis

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Lambert-St. Louis Intl. STL. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $583
STL
Lambert-St. Louis Intl.
Cheapest
Average driving time to city center20 min
Flights from $583

Frequently asked questions

How much does a flight from Gallatin Field Airport (BZN) to Lambert-St. Louis Intl. Airport (STL) cost?
Lock in a cheap one-way flight from $115 or cheap return flight from $228 from Gallatin Field Airport (BZN) to Lambert-St. Louis Intl. Airport (STL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Gallatin Field Airport (BZN) to Lambert-St. Louis Intl. Airport (STL)?
The cheapest month to fly from BZN to STL is January, when there's less demand. Off-peak months are typically when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Gallatin Field Airport (BZN) to Lambert-St. Louis Intl. Airport (STL)?
To find the cheapest airline that'll fly you from BZN to STL, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Gallatin Field Airport (BZN) to Lambert-St. Louis Intl. Airport (STL)?
Direct flights from Gallatin Field Airport (BZN) to Lambert-St. Louis Intl. Airport (STL) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BZN to STL?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can vary based on a range of factors, including the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Gallatin Field Airport (BZN) to Lambert-St. Louis Intl. Airport (STL)?
To avoid possible delays on the Gallatin Field Airport (BZN) to Lambert-St. Louis Intl. Airport (STL) route, aim to travel before 3 PM. Flights after this time have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Gallatin Field Airport (BZN) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Booking your ticket from BZN to STL right before your getaway is usually more expensive. However, if there's some wiggle room with your schedule, you could land a cheap last-minute fare.
Is it cheaper to book a BZN to STL flight and hotel package?
You'll generally save money by securing a BZN to STL flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. After choosing your ideal accommodations and flights, you can add extras such as tours, activities and car rentals.
Can I cancel or change the date of my flight from Gallatin Field Airport (BZN) to Lambert-St. Louis Intl. Airport (STL)?
In most cases, you can reschedule or cancel your BZN to STL flight. However, there may be additional charges, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline's policies and fees on flight changes, or if you need further information, head to our Customer Service portal.

Travel information

Travel information

Origin airport
Bozeman Yellowstone Intl.
Destination airport
Lambert-St. Louis Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, Southwest Airlines, United
Roundtrip price
$228
Distance
1164 mi

Book with confidence

Book with confidence

Bozeman to St. Louis Flights

The cheapest times to fly from Bozeman to St. Louis

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Bozeman to St. Louis are during the month of January. You can find some of the cheapest flights from Bozeman to St. Louis with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Bozeman to St. Louis

Sunday is one of the best days to book for cheap flights from Bozeman to St. Louis: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Bozeman to St. Louis

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Bozeman to St. Louis in 2025. You can also book with separate airlines for your outbound and return journeys, from $115 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Bozeman to St. Louis flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Bozeman to St. Louis airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Bozeman to St. Louis Flights

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Explore a world of travel with Expedia

*Available to One Key members.