What is the cheapest airline that flies from Illinois to Wyoming?

Allegiant Air, United Airlines, and Southwest are the most popular carriers operating from Illinois to Wyoming

How many flights depart from Illinois to Wyoming on average per day?

As of June 2026, there are 97 flights per day flying from Illinois to Wyoming. The most common time of day flights depart is 4:00PM, with 75% of flights taking off in the afternoon.

How long is the flight from Illinois to Wyoming?

On average, it takes 5h 18m to fly from Illinois to Wyoming if you fly out of Chicago (the most popular airport in Illinois) and into Jackson (the most popular airport in Wyoming). If you’re flying out of Peoria and into Jackson, then the flight time is around 5h 39m.

How many flights depart from Illinois to Wyoming on average per week?

As of June 2026, 685 flights take off from Illinois and land in Wyoming each week. The most common flight departure day for this route is Thu, with 21% of weekly flights taking off on this day.

When did momondo last update prices for flights from Illinois to Wyoming?

Prices for flights from Illinois to Wyoming were last updated today.

How many operators does momondo search for flights from Illinois to Wyoming?

As of June 2026, there are 7 operators available to choose from for flights from Illinois to Wyoming.

How old do you have to be to fly from Illinois to Wyoming?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois 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.

$50 Cheap Flights from Illinois to Wyoming in 2026

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Find the cheapest flights from Illinois 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

4:10 pm - 7:23 pm

DEN

STL

2h 13mnonstop

$139Frontier

Tue, Jul 28 - Wed, Jul 29

8:08 pm - 9:44 pm

STL

DEN

2h 36mnonstop

4:10 pm - 7:23 pm

DEN

STL

2h 13mnonstop

$143Frontier

Wed, Jul 1 - Tue, Jul 7

5:23 pm - 6:48 pm

PIA

DEN

2h 25mnonstop

2:17 pm - 5:24 pm

DEN

PIA

2h 07mnonstop

$159Allegiant Air

Thu, Aug 13 - Thu, Aug 20

5:23 pm - 6:48 pm

PIA

DEN

2h 25mnonstop

2:17 pm - 5:24 pm

DEN

PIA

2h 07mnonstop

$171Allegiant Air

Thu, Aug 13 - Thu, Aug 20

9:05 am - 10:34 am

MLI

DEN

2h 29mnonstop

5:40 pm - 9:01 pm

DEN

MLI

2h 21mnonstop

$269United Airlines

Sat, Aug 29 - Sat, Sep 5

9:05 am - 10:34 am

MLI

DEN

2h 29mnonstop

3:50 pm - 11:14 pm

DEN

MLI

6h 24m

1 stop

$279United Airlines

Sat, Aug 22 - Tue, Aug 25

6:50 pm - 12:16 am

MLI

DEN

6h 26m

1 stop

9:04 am - 4:14 pm

DEN

MLI

6h 10m

1 stop

$287American Airlines

Thu, Jul 2 - Sat, Jul 4

6:52 pm - 12:17 am

MLI

DEN

6h 25m

1 stop

5:57 pm - 12:41 am

DEN

MLI

5h 44m

1 stop

$289American Airlines

Wed, Jul 1 - Wed, Jul 8

5:17 pm - 12:22 am

MLI

DEN

8h 05m

1 stop

3:15 pm - 10:34 pm

DEN

MLI

6h 19m

1 stop

$309Delta

Fri, Jun 19 - Mon, Jun 22

1:59 pm - 6:55 pm

ORD

JAC

5h 56m

1 stop

1:10 pm - 9:58 pm

JAC

ORD

7h 48m

1 stop

$339Delta

Mon, Aug 31 - Fri, Sep 4

Frontier flights from Illinois to Wyoming

Our best Frontier deals on Illinois to Wyoming flight tickets

Frontier

Jul 28

STL8:08 pmLambert-St Louis

2h 36m

DEN9:44 pmDenver Intl

Jul 29

DEN4:10 pmDenver Intl

2h 13m

STL7:23 pmLambert-St Louis

$139

Frontier

Jul 1

STL8:08 pmLambert-St Louis

2h 36m

DEN9:44 pmDenver Intl

Jul 7

DEN4:10 pmDenver Intl

2h 13m

STL7:23 pmLambert-St Louis

$143

Frontier

Aug 18

STL6:33 pmLambert-St Louis

15h 25m

1 stop

DEN8:58 amDenver Intl

Aug 25

DEN6:30 amDenver Intl

10h 00m

1 stop

STL5:30 pmLambert-St Louis

$145

Allegiant Air flights from Illinois to Wyoming

Our best Allegiant Air deals on Illinois to Wyoming flight tickets

Allegiant Air

Aug 13

PIA5:23 pmGreater Peoria

2h 25m

DEN6:48 pmDenver Intl

Aug 20

DEN2:17 pmDenver Intl

2h 07m

PIA5:24 pmGreater Peoria

$159

Allegiant Air

Aug 13

PIA5:23 pmGreater Peoria

2h 25m

DEN6:48 pmDenver Intl

Aug 20

DEN2:17 pmDenver Intl

2h 07m

PIA5:24 pmGreater Peoria

$171

Allegiant Air

Aug 20

PIA10:07 amGreater Peoria

2h 19m

DEN11:26 amDenver Intl

Aug 27

DEN2:17 pmDenver Intl

2h 07m

PIA5:24 pmGreater Peoria

$174

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Tue 7/28

8:08 pm-9:44 pm

Nonstop2h 36m

Denver Intl

Wed 7/29

4:10 pm-7:23 pm

Nonstop2h 13m

$139

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Wed 7/1

8:08 pm-9:44 pm

Nonstop2h 36m

Denver Intl

Tue 7/7

4:10 pm-7:23 pm

Nonstop2h 13m

$143

Quickest round-trip

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

Thu 8/13

5:23 pm-6:48 pm

Nonstop2h 25m

Denver Intl

Thu 8/20

2:17 pm-5:24 pm

Nonstop2h 07m

$159

PeoriaDenver

PIA - DEN

PIADEN

Greater Peoria

Thu 8/13

5:23 pm-6:48 pm

Nonstop2h 25m

Denver Intl

Thu 8/20

2:17 pm-5:24 pm

Nonstop2h 07m

$171

MolineDenver

MLI - DEN

MLIDEN

Moline Quad-City

Sat 8/29

9:05 am-10:34 am

Nonstop2h 29m

Denver Intl

Sat 9/5

5:40 pm-9:01 pm

Nonstop2h 21m

$269

MolineDenver

MLI - DEN

MLIDEN

Moline Quad-City

Sat 8/22

9:05 am-10:34 am

Nonstop2h 29m

Denver Intl

Tue 8/25

3:50 pm-11:14 pm

1 stop6h 24m

$279

MolineDenver

MLI - DEN

MLIDEN

Moline Quad-City

Thu 7/2

6:50 pm-12:16 am

1 stop6h 26m

Denver Intl

Sat 7/4

9:04 am-4:14 pm

1 stop6h 10m

$287

MolineDenver

MLI - DEN

MLIDEN

Moline Quad-City

Wed 7/1

6:52 pm-12:17 am

1 stop6h 25m

Denver Intl

Wed 7/8

5:57 pm-12:41 am

1 stop5h 44m

$289

MolineDenver

MLI - DEN

MLIDEN

Moline Quad-City

Fri 6/19

5:17 pm-12:22 am

1 stop8h 05m

Denver Intl

Mon 6/22

3:15 pm-10:34 pm

1 stop6h 19m

$309

ChicagoJackson

ORD - JAC

ORDJAC

Chicago O'Hare Intl

Mon 8/31

1:59 pm-6:55 pm

1 stop5h 56m

Jackson Hole

Fri 9/4

1:10 pm-9:58 pm

1 stop7h 48m

$339

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 Illinois 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 Illinois is in September. Flight prices, which tend to average around $191, 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 October is also cheap. Prices for this month can be found on momondo for an average of $229.

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

The cheapest day to depart from Illinois to Wyoming is on a Tuesday. Travelers who choose to depart for Wyoming on a Tuesday will often find tickets for as low as $391. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Illinois to Wyoming for around $497.

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 Illinois to Wyoming during this time can be as low as $416. In the morning is when there is more demand to fly to Wyoming, so prices are often more expensive at around $482 per ticket.

What is the cheapest Illinois to Wyoming flight route?

Fly from Chicago O'Hare Intl to Jackson Hole for the best Illinois - Wyoming flight prices

How far in advance should I book a flight from Illinois to Wyoming?

You are more likely to see cheaper flights to Wyoming from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Wyoming for around $427 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Wyoming from Illinois for as low as $378 on momondo.

What cabin class options are available on Illinois to Wyoming flights?

There are 4 cabin classes available to choose from on Illinois to Wyoming flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Illinois to Wyoming flights?

No. A direct flight is the cheapest option for a flight between Illinois to Wyoming.

Cheap Illinois to Wyoming flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Wyoming

Best Price Found	$195
Fastest flight time	2h 19m
Direct flights	Every day
Airports in Wyoming	26 airports

The best one-way flight to Wyoming from Illinois in the past 72 hours is $195. The best round-trip flight deal from Illinois to Wyoming found on momondo in the last 72 hours is $430.

The fastest flight from Illinois to Wyoming takes 2h 19m

Direct flights go from Illinois to Wyoming every day.

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

Search flight deals

Frequently asked questions about flying from Illinois to Wyoming

When did momondo last update prices for flights from Illinois to Wyoming?
Prices for flights from Illinois to Wyoming were last updated today.
How many operators does momondo search for flights from Illinois to Wyoming?
As of June 2026, there are 7 operators available to choose from for flights from Illinois to Wyoming.
How old do you have to be to fly from Illinois to Wyoming?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois 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.
What is the most popular plane model from Illinois to Wyoming?
Based on momondo bookings for flights between Illinois and Wyoming, the leading plane model is Boeing 737-700, making up 47.56% of the total bookings. Other popular models include Airbus A319 with 42.67%, Embraer 175 (Enhanced Winglets) with 3.34%, and Boeing 737 with 1.80%.

Best airlines flying from Illinois to Wyoming

Compare and see reviews for airlines that fly from Illinois to Wyoming with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $263	Free Cancellation	Rating 7.4 9,775 reviews		Search United Airlines flights
American Airlines	PriceFrom $274	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 Illinois to Wyoming?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Illinois to Wyoming. momondo saves you time and could save you money on your trip.

Can I find flights from Illinois to Wyoming with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Illinois to Wyoming flights to just show those with flexible booking policies.

How can momondo help me find flights from Illinois to Wyoming?

momondo helps you find the best flight between Illinois and Wyoming by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to Wyoming from Illinois. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Popular cities in Wyoming

Flights to New Yorkfrom $60

Flights to Los Angelesfrom $49

Flights to Orlandofrom $68

Flights to Miamifrom $69

Flights to Chicagofrom $64

Flights to San Franciscofrom $59

Flights to Las Vegasfrom $50

Flights to Washington, D.C.from $42

Flights to Bostonfrom $79

Flights to Atlantafrom $50

Flights to Fort Lauderdalefrom $59

Flights to Dallasfrom $63

Cheap flights from Illinois to Wyoming from $50

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Wyoming departing on 8/5. 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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Frontier flights from Illinois to Wyoming

Our best Frontier deals on Illinois to Wyoming flight tickets

Allegiant Air flights from Illinois to Wyoming

Our best Allegiant Air deals on Illinois to Wyoming flight tickets

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See travel insights to Wyoming from

How to get the cheapest flight ticket from Illinois to Wyoming

What is the cheapest month to fly to Wyoming?

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

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

What is the cheapest Illinois to Wyoming flight route?

How far in advance should I book a flight from Illinois to Wyoming?

What cabin class options are available on Illinois to Wyoming flights?

Can stopping save me money on Illinois to Wyoming flights?

What is the cheapest airline that flies from Illinois to Wyoming?

How many flights depart from Illinois to Wyoming on average per day?

How many flights depart from Illinois to Wyoming on average per week?

How long is the flight from Illinois to Wyoming?

Cheap Illinois to Wyoming flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Wyoming

Best Price Found

Fastest flight time

Direct flights

Airports in Wyoming

Frequently asked questions about flying from Illinois to Wyoming

Best airlines flying from Illinois to Wyoming

Compare and see reviews for airlines that fly from Illinois to Wyoming with momondo

Why use momondo?

An easier way to manage your Wyoming trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Wyoming

Popular cities in Wyoming

Popular flights according to clicks in the last 7 days on momondo

Illinois flight routes

According to popular flight searches on momondo this year

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