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Cheap flights from St. Louis to Wyoming from $29

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Wyoming departing on 1/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from St. Louis to Wyoming

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
7:43 pm - 9:15 pm
STL
-
DEN
2h 32mnonstop
Frontier Logo
6:50 am - 10:02 am
DEN
-
STL
2h 12mnonstop
$70Frontier
Sat, Jan 10 - Mon, Jan 12
Frontier Logo
7:43 pm - 9:15 pm
STL
-
DEN
2h 32mnonstop
Frontier Logo
6:50 am - 10:02 am
DEN
-
STL
2h 12mnonstop
$72Frontier
Fri, Jan 9 - Sat, Jan 10
Frontier Logo
7:43 pm - 9:15 pm
STL
-
DEN
2h 32mnonstop
Frontier Logo
6:50 am - 10:02 am
DEN
-
STL
2h 12mnonstop
$73Frontier
Wed, Jan 7 - Fri, Jan 9
Delta Logo
6:00 am - 1:30 pm
STL
-
JAC
8h 30m1 stop
Delta Logo
12:58 pm - 9:35 pm
JAC
-
STL
7h 37m1 stop
$257Delta
Thu, Jan 8 - Tue, Jan 13
Delta Logo
7:10 am - 1:30 pm
STL
-
JAC
7h 20m1 stop
Delta Logo
12:58 pm - 11:25 pm
JAC
-
STL
9h 27m2 stops
$262Delta
Fri, Jan 9 - Fri, Jan 16
Delta Logo
7:00 am - 11:58 am
STL
-
JAC
5h 58m1 stop
Delta Logo
12:58 pm - 9:35 pm
JAC
-
STL
7h 37m1 stop
$269Delta
Thu, Jan 8 - Tue, Jan 13
United Airlines Logo
5:20 am - 10:03 am
STL
-
JAC
5h 43m1 stop
United Airlines Logo
4:25 pm - 11:43 pm
JAC
-
STL
6h 18m1 stop
$328United Airlines
Mon, Jun 1 - Mon, Jun 8
United Airlines Logo
6:00 pm - 10:14 pm
STL
-
CPR
5h 14m1 stop
United Airlines Logo
6:04 pm - 10:13 am
CPR
-
STL
15h 09m2 stops
$334United Airlines
Thu, Jan 8 - Mon, Jan 12
United Airlines Logo
6:00 am - 12:19 pm
STL
-
JAC
7h 19m1 stop
United Airlines Logo
2:00 pm - 11:59 pm
JAC
-
STL
8h 59m1 stop
$337United Airlines
Sat, Jan 10 - Tue, Jan 13
United Airlines Logo
11:20 am - 10:14 pm
STL
-
CPR
11h 54m2 stops
United Airlines Logo
11:28 am - 11:59 pm
CPR
-
STL
11h 31m2 stops
$339United Airlines
Thu, Jan 8 - Mon, Jan 12

Frontier flights from St. Louis to Wyoming

Our best Frontier deals on St. Louis to Wyoming flight tickets
Frontier
Jan 10
STL7:43 pmLambert-St Louis
2h 32m
DEN9:15 pmDenver Intl
Jan 12
DEN6:50 amDenver Intl
2h 12m
STL10:02 amLambert-St Louis
$70
Find similar
Frontier
Jan 9
STL7:43 pmLambert-St Louis
2h 32m
DEN9:15 pmDenver Intl
Jan 10
DEN6:50 amDenver Intl
2h 12m
STL10:02 amLambert-St Louis
$72
Find similar
Frontier
Jan 7
STL7:43 pmLambert-St Louis
2h 32m
DEN9:15 pmDenver Intl
Jan 9
DEN6:50 amDenver Intl
2h 12m
STL10:02 amLambert-St Louis
$73
Find similar

Southwest flights from St. Louis to Wyoming

Our best Southwest deals on St. Louis to Wyoming flight tickets
Southwest
Dec 19
STL6:45 pmLambert-St Louis
2h 20m
DEN8:05 pmDenver Intl
Jan 4
DEN9:45 pmDenver Intl
2h 00m
STL12:45 amLambert-St Louis
$472
Find similar
Southwest
Dec 24
STL5:00 amLambert-St Louis
8h 50m
2 stops
SLC12:50 pmSalt Lake City
Dec 29
SLC12:50 pmSalt Lake City
7h 05m
2 stops
STL8:55 pmLambert-St Louis
$568
Find similar
Southwest
Dec 19
STL5:15 pmLambert-St Louis
2h 20m
DEN6:35 pmDenver Intl
Dec 21
DEN7:30 amDenver Intl
2h 10m
STL10:40 amLambert-St Louis
$597
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Wyoming that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 11, 2025.
Use the filters below to find and compare flights from St. Louis to Wyoming that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Sat 1/10

7:43 pm-9:15 pm

Nonstop2h 32m

Denver Intl

Mon 1/12

6:50 am-10:02 am

Nonstop2h 12m

$70

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Fri 1/9

7:43 pm-9:15 pm

Nonstop2h 32m

Denver Intl

Sat 1/10

6:50 am-10:02 am

Nonstop2h 12m

$72

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Wed 1/7

7:43 pm-9:15 pm

Nonstop2h 32m

Denver Intl

Fri 1/9

6:50 am-10:02 am

Nonstop2h 12m

$73

St. LouisJackson

STL - JAC

STLJAC

Lambert-St Louis

Thu 1/8

6:00 am-1:30 pm

1 stop8h 30m

Jackson Hole

Tue 1/13

12:58 pm-9:35 pm

1 stop7h 37m

$257

St. LouisJackson

STL - JAC

STLJAC

Lambert-St Louis

Fri 1/9

7:10 am-1:30 pm

1 stop7h 20m

Jackson Hole

Fri 1/16

12:58 pm-11:25 pm

2 stops9h 27m

$262

St. LouisJackson

STL - JAC

STLJAC

Lambert-St Louis

Thu 1/8

7:00 am-11:58 am

1 stop5h 58m

Jackson Hole

Tue 1/13

12:58 pm-9:35 pm

1 stop7h 37m

$269

St. LouisJackson

STL - JAC

STLJAC

Lambert-St Louis

Mon 6/1

5:20 am-10:03 am

1 stop5h 43m

Jackson Hole

Mon 6/8

4:25 pm-11:43 pm

1 stop6h 18m

$328

St. LouisCasper

STL - CPR

STLCPR

Lambert-St Louis

Thu 1/8

6:00 pm-10:14 pm

1 stop5h 14m

Casper Natrona County

Mon 1/12

6:04 pm-10:13 am

2 stops15h 09m

$334

St. LouisJackson

STL - JAC

STLJAC

Lambert-St Louis

Sat 1/10

6:00 am-12:19 pm

1 stop7h 19m

Jackson Hole

Tue 1/13

2:00 pm-11:59 pm

1 stop8h 59m

$337

St. LouisCasper

STL - CPR

STLCPR

Lambert-St Louis

Thu 1/8

11:20 am-10:14 pm

2 stops11h 54m

Casper Natrona County

Mon 1/12

11:28 am-11:59 pm

2 stops11h 31m

$339

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Wyoming from

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

What is the cheapest month to fly to Wyoming?

The cheapest month to fly to Wyoming from St. Louis is in April. Flight prices, which tend to average around $414, 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 April, then flying in December is also cheap. Prices for this month can be found on momondo for an average of $429.

What is the cheapest day to depart on your flight to Wyoming?

The cheapest day to depart from St. Louis to Wyoming is on a Wednesday. Travelers who choose to depart for Wyoming on a Wednesday will often find tickets for as low as $496. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from St. Louis to Wyoming for around $604.

What is the cheapest time of day to depart on your flight to Wyoming?

Our most recent data shows that the best time of day to fly to Wyoming is at noon. Flights from St. Louis to Wyoming during this time can be as low as $532. In the afternoon is when there is more demand to fly to Wyoming, so prices are often more expensive at around $545 per ticket.

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 $496 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 $418 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

Mon, Tue, Wed, Thu, Sat and Sun

Airports in Wyoming

26 airports
The fastest flight from St. Louis to Wyoming takes 2h 20m
Direct flights go from St. Louis to Wyoming on Monday, Tuesday, Wednesday, Thursday, Saturday and Sunday. There are no airlines offering direct flights.
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?

  • 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
DeltaPriceFrom $237Free CancellationRating
7.9
8,007 reviews
Search Delta flights
United AirlinesPriceFrom $238Free CancellationRating
7.4
9,095 reviews
Search United Airlines flights
American AirlinesPriceFrom $348Free CancellationRating
7.2
11,050 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.

An easier way to manage your Wyoming trip

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