What is the cheapest airline that flies from Lambert-St Louis to Wyoming?

Southwest, Delta, and United Airlines are the most popular carriers operating from Lambert-St Louis to Wyoming

How many flights depart from St. Louis to Wyoming on average per week?

As of June 2026, 114 flights take off from St. Louis and land in Wyoming each week. The most common flight departure day for this route is Tue, with 18% of weekly flights taking off on this day.

What airlines fly to Wyoming?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Wyoming from St. Louis according to our data. United Airlines is the first choice among our users, with 64% of people opting to fly with this airline when traveling to Wyoming. Keep in mind that there are 3 different airlines that fly to Wyoming on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Lambert-St Louis Airport to Wyoming?

Prices for flights from Lambert-St Louis Airport to Wyoming refresh daily.

How many operators does momondo search for flights from Lambert-St Louis Airport to Wyoming?

As of June 2026, there are 5 operators available to choose from for flights from Lambert-St Louis Airport to Wyoming.

How old do you have to be to fly from Lambert-St Louis Airport to Wyoming?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Wyoming.

What documentation or ID do you need to fly to Wyoming?

The travel and health documents you'll need for your trip to Wyoming may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Wyoming. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$79 Cheap Flights from St. Louis to Wyoming in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Wyoming

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:08 pm - 9:44 pm

STL

DEN

2h 36mnonstop

4:12 pm - 7:23 pm

DEN

STL

2h 11mnonstop

$142Frontier

Thu, Aug 20 - Tue, Aug 25

8:08 pm - 9:44 pm

STL

DEN

2h 36mnonstop

4:10 pm - 7:23 pm

DEN

STL

2h 13mnonstop

$143Frontier

Wed, Jul 1 - Wed, Jul 8

8:08 pm - 9:44 pm

STL

DEN

2h 36mnonstop

9:25 pm - 2:48 pm

DEN

STL

16h 23m

1 stop

$145Frontier

Mon, Aug 17 - Tue, Aug 18

8:08 pm - 9:44 pm

STL

DEN

2h 36mnonstop

4:10 pm - 7:23 pm

DEN

STL

2h 13mnonstop

$147Frontier

Wed, Aug 5 - Tue, Aug 11

8:08 pm - 9:44 pm

STL

DEN

2h 36mnonstop

4:12 pm - 7:23 pm

DEN

STL

2h 11mnonstop

$151Frontier

Wed, Aug 26 - Wed, Sep 2

4:40 pm - 8:27 pm

STL

CPR

4h 47m

1 stop

8:45 am - 4:34 pm

CPR

STL

6h 49m

1 stop

$298United Airlines

Wed, Aug 19 - Tue, Aug 25

4:40 pm - 8:27 pm

STL

CPR

4h 47m

1 stop

1:26 pm - 10:00 pm

CPR

STL

7h 34m

2 stops

$304United Airlines

Wed, Aug 19 - Tue, Aug 25

2:32 pm - 6:55 pm

STL

JAC

5h 23m

1 stop

6:01 pm - 12:41 am

JAC

STL

5h 40m

1 stop

$359Delta

Tue, Aug 18 - Tue, Aug 25

2:32 pm - 6:55 pm

STL

JAC

5h 23m

1 stop

6:01 pm - 12:41 am

JAC

STL

5h 40m

1 stop

$379Delta

Wed, Aug 5 - Thu, Aug 13

9:32 am - 7:04 pm

STL

JAC

10h 32m

2 stops

4:30 pm - 11:42 pm

JAC

STL

6h 12m

1 stop

$394American Airlines

Tue, Aug 18 - Tue, Aug 25

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Frontier flights from St. Louis to Wyoming

Our best Frontier deals on St. Louis to Wyoming flight tickets

Frontier

Aug 20

STL8:08 pmLambert-St Louis

2h 36m

DEN9:44 pmDenver Intl

Aug 25

DEN4:12 pmDenver Intl

2h 11m

STL7:23 pmLambert-St Louis

$142

Frontier

Jul 1

STL8:08 pmLambert-St Louis

2h 36m

DEN9:44 pmDenver Intl

Jul 8

DEN4:10 pmDenver Intl

2h 13m

STL7:23 pmLambert-St Louis

$143

Frontier

Aug 17

STL8:08 pmLambert-St Louis

2h 36m

DEN9:44 pmDenver Intl

Aug 18

DEN9:25 pmDenver Intl

16h 23m

1 stop

STL2:48 pmLambert-St Louis

$145

Southwest flights from St. Louis to Wyoming

Our best Southwest deals on St. Louis to Wyoming flight tickets

Southwest

Jun 24

STL6:00 amLambert-St Louis

5h 55m

1 stop

SLC10:55 amSalt Lake City

Jun 27

SLC12:15 pmSalt Lake City

2h 45m

STL4:00 pmLambert-St Louis

$559

Southwest

Jun 23

STL8:30 amLambert-St Louis

8h 50m

2 stops

SLC4:20 pmSalt Lake City

Jun 30

SLC9:20 amSalt Lake City

8h 05m

2 stops

STL6:25 pmLambert-St Louis

$562

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Thu 8/20

8:08 pm-9:44 pm

Nonstop2h 36m

Denver Intl

Tue 8/25

4:12 pm-7:23 pm

Nonstop2h 11m

$142

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Wed 7/1

8:08 pm-9:44 pm

Nonstop2h 36m

Denver Intl

Wed 7/8

4:10 pm-7:23 pm

Nonstop2h 13m

$143

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Mon 8/17

8:08 pm-9:44 pm

Nonstop2h 36m

Denver Intl

Tue 8/18

9:25 pm-2:48 pm

1 stop16h 23m

$145

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Wed 8/5

8:08 pm-9:44 pm

Nonstop2h 36m

Denver Intl

Tue 8/11

4:10 pm-7:23 pm

Nonstop2h 13m

$147

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Wed 8/26

8:08 pm-9:44 pm

Nonstop2h 36m

Denver Intl

Wed 9/2

4:12 pm-7:23 pm

Nonstop2h 11m

$151

St. LouisCasper

STL - CPR

STLCPR

Lambert-St Louis

Wed 8/19

4:40 pm-8:27 pm

1 stop4h 47m

Casper Natrona County

Tue 8/25

8:45 am-4:34 pm

1 stop6h 49m

$298

St. LouisCasper

STL - CPR

STLCPR

Lambert-St Louis

Wed 8/19

4:40 pm-8:27 pm

1 stop4h 47m

Casper Natrona County

Tue 8/25

1:26 pm-10:00 pm

2 stops7h 34m

$304

St. LouisJackson

STL - JAC

STLJAC

Lambert-St Louis

Tue 8/18

2:32 pm-6:55 pm

1 stop5h 23m

Jackson Hole

Tue 8/25

6:01 pm-12:41 am

1 stop5h 40m

$359

St. LouisJackson

STL - JAC

STLJAC

Lambert-St Louis

Wed 8/5

2:32 pm-6:55 pm

1 stop5h 23m

Jackson Hole

Thu 8/13

6:01 pm-12:41 am

1 stop5h 40m

$379

St. LouisJackson

STL - JAC

STLJAC

Lambert-St Louis

Tue 8/18

9:32 am-7:04 pm

2 stops10h 32m

Jackson Hole

Tue 8/25

4:30 pm-11:42 pm

1 stop6h 12m

$394

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from St. Louis to Wyoming

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Wyoming?

The cheapest month to fly to Wyoming from St. Louis is in September. Flight prices, which tend to average around $197, are often lower during this time because this is during the off-season. If you aren’t able to travel to Wyoming during the month of September, then flying in July is also cheap. Prices for this month can be found on momondo for an average of $197.

How far in advance should I book a flight from St. Louis to Wyoming?

You are more likely to see cheaper flights to Wyoming from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Wyoming for around $473 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Wyoming from St. Louis for as low as $337 on momondo.

Cheap St. Louis to Wyoming flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Wyoming

Fastest flight time	2h 15m
Direct flights	Every day
Airports in Wyoming	26 airports

The fastest flight from St. Louis to Wyoming takes 2h 15m

Direct flights go from St. Louis to Wyoming every day.

There are 26 airports in Wyoming. From St. Louis there are direct flights to Denver Intl (DEN).

Search flight deals

Frequently asked questions about flying from St. Louis to Wyoming

When did momondo last update prices for flights from Lambert-St Louis Airport to Wyoming?
Prices for flights from Lambert-St Louis Airport to Wyoming refresh daily.
How many operators does momondo search for flights from Lambert-St Louis Airport to Wyoming?
As of June 2026, there are 5 operators available to choose from for flights from Lambert-St Louis Airport to Wyoming.
How old do you have to be to fly from Lambert-St Louis Airport to Wyoming?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Wyoming.
What documentation or ID do you need to fly to Wyoming?
The travel and health documents you'll need for your trip to Wyoming may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Wyoming. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from St. Louis to Wyoming

Compare and see reviews for airlines that fly from St. Louis to Wyoming with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $238	Free Cancellation	Rating 7.4 9,810 reviews	Search United Airlines flights
Delta	PriceFrom $257	Free Cancellation	Rating 7.9 8,400 reviews	Search Delta flights
American Airlines	PriceFrom $352	Free Cancellation	Rating 7.1 11,644 reviews	Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Wyoming?

It is quick and easy to find St. Louis to Wyoming flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Wyoming that suits you.

Can I find flights from St. Louis to Wyoming with flexible booking policies on momondo?

momondo does allow users to show only those flights to Wyoming from St. Louis which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from St. Louis to Wyoming?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Wyoming.

I’m not ready to book a flight from St. Louis to Wyoming right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Wyoming, momondo offers a useful price alert feature which will track prices for flights to Wyoming from St. Louis and alert you when they change.