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 55% 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.

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

Frontier, American Airlines, 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 February 2026, 75 flights take off from St. Louis and land in Wyoming each week. The most common flight departure day for this route is Fri, with 25% of weekly flights taking off on this day.

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 February 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.

$60 Cheap Flights from St. Louis to Wyoming in 2026

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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.

8:12 pm - 9:49 pm

STL

DEN

2h 37mnonstop

6:35 am - 9:49 am

DEN

STL

2h 14mnonstop

$76Frontier

Sat, Mar 21 - Wed, Mar 25

8:12 pm - 9:49 pm

STL

DEN

2h 37mnonstop

6:35 am - 9:49 am

DEN

STL

2h 14mnonstop

$77Frontier

Sat, Mar 7 - Wed, Mar 11

8:12 pm - 9:49 pm

STL

DEN

2h 37mnonstop

6:35 am - 9:49 am

DEN

STL

2h 14mnonstop

$85Frontier

Mon, Mar 23 - Mon, Mar 30

7:15 am - 12:10 pm

STL

JAC

5h 55m

1 stop

5:50 pm - 12:21 am

JAC

STL

5h 31m

1 stop

$257Delta

Wed, Mar 25 - Mon, Mar 30

2:50 pm - 6:57 pm

STL

CPR

5h 07m

1 stop

5:55 pm - 11:34 pm

CPR

STL

4h 39m

1 stop

$258United Airlines

Thu, Mar 5 - Tue, Mar 10

6:00 am - 4:47 pm

STL

JAC

11h 47m

2 stops

5:50 pm - 12:21 am

JAC

STL

5h 31m

1 stop

$262Delta

Wed, Mar 25 - Mon, Mar 30

2:50 pm - 8:36 pm

STL

CPR

6h 46m

1 stop

11:26 am - 9:07 pm

CPR

STL

8h 41m

2 stops

$264United Airlines

Thu, Mar 5 - Tue, Mar 10

6:00 am - 4:47 pm

STL

JAC

11h 47m

2 stops

5:50 pm - 12:21 am

JAC

STL

5h 31m

1 stop

$283Delta

Wed, Mar 25 - Mon, Mar 30

7:45 am - 3:24 pm

STL

JAC

8h 39m

2 stops

2:35 pm - 8:54 pm

JAC

STL

5h 19m

1 stop

$304United Airlines

Sat, Apr 25 - Wed, Apr 29

5:15 am - 8:51 am

STL

CPR

4h 36m

1 stop

11:19 am - 9:11 pm

CPR

STL

8h 52m

2 stops

$351United Airlines

Sun, May 24 - Wed, Jun 3

Frontier flights from St. Louis to Wyoming

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

Frontier

Mar 21

STL8:12 pmLambert-St Louis

2h 37m

DEN9:49 pmDenver Intl

Mar 25

DEN6:35 amDenver Intl

2h 14m

STL9:49 amLambert-St Louis

$76

Frontier

Mar 7

STL8:12 pmLambert-St Louis

2h 37m

DEN9:49 pmDenver Intl

Mar 11

DEN6:35 amDenver Intl

2h 14m

STL9:49 amLambert-St Louis

$77

Frontier

Mar 23

STL8:12 pmLambert-St Louis

2h 37m

DEN9:49 pmDenver Intl

Mar 30

DEN6:35 amDenver Intl

2h 14m

STL9:49 amLambert-St Louis

$85

United Airlines flights from St. Louis to Wyoming

Our best United Airlines deals on St. Louis to Wyoming flight tickets

United Airlines

Apr 18

STL8:54 amLambert-St Louis

2h 33m

DEN10:27 amDenver Intl

Apr 25

DEN5:45 pmDenver Intl

2h 09m

STL8:54 pmLambert-St Louis

$129

United Airlines

Mar 5

STL2:50 pmLambert-St Louis

5h 07m

1 stop

CPR6:57 pmCasper Natrona County

Mar 10

CPR5:55 pmCasper Natrona County

4h 39m

1 stop

STL11:34 pmLambert-St Louis

$258

United Airlines

Mar 5

STL2:50 pmLambert-St Louis

6h 46m

1 stop

CPR8:36 pmCasper Natrona County

Mar 10

CPR11:26 amCasper Natrona County

8h 41m

2 stops

STL9:07 pmLambert-St Louis

$264

Fly from

Fly to

Route

Depart

Return

Price

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Sat 3/21

8:12 pm-9:49 pm

Nonstop2h 37m

Denver Intl

Wed 3/25

6:35 am-9:49 am

Nonstop2h 14m

$76

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Sat 3/7

8:12 pm-9:49 pm

Nonstop2h 37m

Denver Intl

Wed 3/11

6:35 am-9:49 am

Nonstop2h 14m

$77

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Mon 3/23

8:12 pm-9:49 pm

Nonstop2h 37m

Denver Intl

Mon 3/30

6:35 am-9:49 am

Nonstop2h 14m

$85

St. LouisJackson

STL - JAC

STLJAC

Lambert-St Louis

Wed 3/25

7:15 am-12:10 pm

1 stop5h 55m

Jackson Hole

Mon 3/30

5:50 pm-12:21 am

1 stop5h 31m

$257

St. LouisCasper

STL - CPR

STLCPR

Lambert-St Louis

Thu 3/5

2:50 pm-6:57 pm

1 stop5h 07m

Casper Natrona County

Tue 3/10

5:55 pm-11:34 pm

1 stop4h 39m

$258

St. LouisJackson

STL - JAC

STLJAC

Lambert-St Louis

Wed 3/25

6:00 am-4:47 pm

2 stops11h 47m

Jackson Hole

Mon 3/30

5:50 pm-12:21 am

1 stop5h 31m

$262

St. LouisCasper

STL - CPR

STLCPR

Lambert-St Louis

Thu 3/5

2:50 pm-8:36 pm

1 stop6h 46m

Casper Natrona County

Tue 3/10

11:26 am-9:07 pm

2 stops8h 41m

$264

St. LouisJackson

STL - JAC

STLJAC

Lambert-St Louis

Wed 3/25

6:00 am-4:47 pm

2 stops11h 47m

Jackson Hole

Mon 3/30

5:50 pm-12:21 am

1 stop5h 31m

$283

St. LouisJackson

STL - JAC

STLJAC

Lambert-St Louis

Sat 4/25

7:45 am-3:24 pm

2 stops8h 39m

Jackson Hole

Wed 4/29

2:35 pm-8:54 pm

1 stop5h 19m

$304

St. LouisCasper

STL - CPR

STLCPR

Lambert-St Louis

Sun 5/24

5:15 am-8:51 am

1 stop4h 36m

Casper Natrona County

Wed 6/3

11:19 am-9:11 pm

2 stops8h 52m

$351

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 March. Flight prices, which tend to average around $383, 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 March, then flying in December is also cheap. Prices for this month can be found on momondo for an average of $388.

How far in advance should I book a flight 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 $471 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 $304 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 20m
Direct flights	Every day
Airports in Wyoming	26 airports

The fastest flight from St. Louis to Wyoming takes 2h 20m

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

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 February 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
Delta	PriceFrom $229	Free Cancellation	Rating 7.9 8,205 reviews	Search Delta flights
United Airlines	PriceFrom $238	Free Cancellation	Rating 7.4 9,296 reviews	Search United Airlines flights
American Airlines	PriceFrom $362	Free Cancellation	Rating 7.2 11,297 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.