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Cheap flights from Illinois to Denver from $149

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 Denver departing on 1/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Illinois to Denver

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
2:45 pm - 8:49 pm
STL
-
EGE
7h 04m1 stop
United Airlines Logo
1:42 pm - 8:58 pm
EGE
-
STL
6h 16m1 stop
$284United Airlines
Wed, Feb 4 - Sun, Feb 8
United Airlines Logo
10:10 am - 8:49 pm
STL
-
EGE
11h 39m2 stops
United Airlines Logo
1:42 pm - 8:58 pm
EGE
-
STL
6h 16m1 stop
$289United Airlines
Wed, Feb 4 - Sun, Feb 8
United Airlines Logo
8:45 am - 2:28 pm
STL
-
EGE
6h 43m1 stop
United Airlines Logo
7:00 am - 1:16 pm
EGE
-
STL
5h 16m1 stop
$299United Airlines
Tue, Jan 20 - Sat, Jan 24
United Airlines Logo
4:15 pm - 8:49 pm
STL
-
EGE
5h 34m1 stop
United Airlines Logo
7:00 am - 7:27 pm
EGE
-
STL
11h 27m2 stops
$304United Airlines
Tue, Jan 20 - Sat, Jan 24
American Airlines Logo
8:05 am - 10:06 am
ORD
-
EGE
3h 01mnonstop
American Airlines Logo
10:48 am - 2:36 pm
EGE
-
ORD
2h 48mnonstop
$315American Airlines
Fri, Mar 13 - Tue, Mar 17
American Airlines Logo
10:34 am - 12:40 pm
ORD
-
EGE
3h 06mnonstop
American Airlines Logo
2:37 pm - 10:24 pm
EGE
-
ORD
6h 47m1 stop
$325American Airlines
Fri, Mar 20 - Wed, Mar 25
American Airlines Logo
10:34 am - 12:40 pm
ORD
-
EGE
3h 06mnonstop
American Airlines Logo
10:48 am - 2:36 pm
EGE
-
ORD
2h 48mnonstop
$331American Airlines
Mon, Mar 9 - Fri, Mar 13
Delta Logo
5:20 am - 10:38 am
ORD
-
EGE
6h 18m1 stop
Delta Logo
3:31 pm - 11:59 pm
EGE
-
ORD
7h 28m1 stop
$335Delta
Fri, Mar 13 - Tue, Mar 17
Delta Logo
7:05 am - 2:05 pm
ORD
-
EGE
8h 00m1 stop
Delta Logo
3:10 pm - 11:56 pm
EGE
-
ORD
7h 46m1 stop
$351Delta
Mon, Jan 19 - Wed, Jan 28
Delta Logo
5:51 am - 2:05 pm
MLI
-
EGE
9h 14m1 stop
Delta Logo
3:10 pm - 10:33 pm
EGE
-
MLI
6h 23m1 stop
$481Delta
Sun, Jan 11 - Thu, Jan 15

United Airlines flights from Illinois to Vail

Our best United Airlines deals on Illinois to Vail flight tickets
United Airlines
Feb 4
STL2:45 pmLambert-St Louis
7h 04m
1 stop
EGE8:49 pmVail Eagle County
Feb 8
EGE1:42 pmVail Eagle County
6h 16m
1 stop
STL8:58 pmLambert-St Louis
$284
Find similar
United Airlines
Feb 4
STL10:10 amLambert-St Louis
11h 39m
2 stops
EGE8:49 pmVail Eagle County
Feb 8
EGE1:42 pmVail Eagle County
6h 16m
1 stop
STL8:58 pmLambert-St Louis
$289
Find similar
United Airlines
Jan 20
STL8:45 amLambert-St Louis
6h 43m
1 stop
EGE2:28 pmVail Eagle County
Jan 24
EGE7:00 amVail Eagle County
5h 16m
1 stop
STL1:16 pmLambert-St Louis
$299
Find similar

American Airlines flights from Illinois to Vail

Our best American Airlines deals on Illinois to Vail flight tickets
American Airlines
Mar 13
ORD8:05 amChicago O'Hare Intl
3h 01m
EGE10:06 amVail Eagle County
Mar 17
EGE10:48 amVail Eagle County
2h 48m
ORD2:36 pmChicago O'Hare Intl
$315
Find similar
American Airlines
Mar 20
ORD10:34 amChicago O'Hare Intl
3h 06m
EGE12:40 pmVail Eagle County
Mar 25
EGE2:37 pmVail Eagle County
6h 47m
1 stop
ORD10:24 pmChicago O'Hare Intl
$325
Find similar
American Airlines
Mar 20
ORD5:00 amChicago O'Hare Intl
7h 54m
1 stop
EGE11:54 amVail Eagle County
Mar 25
EGE2:37 pmVail Eagle County
7h 59m
1 stop
ORD11:36 pmChicago O'Hare Intl
$335
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Vail 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 29, 2025.
Use the filters below to find and compare flights from Illinois to Vail that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisVail

STL - EGE

STLEGE

Lambert-St Louis

Wed 2/4

2:45 pm-8:49 pm

1 stop7h 04m

Vail Eagle County

Sun 2/8

1:42 pm-8:58 pm

1 stop6h 16m

$284

St. LouisVail

STL - EGE

STLEGE

Lambert-St Louis

Wed 2/4

10:10 am-8:49 pm

2 stops11h 39m

Vail Eagle County

Sun 2/8

1:42 pm-8:58 pm

1 stop6h 16m

$289

St. LouisVail

STL - EGE

STLEGE

Lambert-St Louis

Tue 1/20

8:45 am-2:28 pm

1 stop6h 43m

Vail Eagle County

Sat 1/24

7:00 am-1:16 pm

1 stop5h 16m

$299

St. LouisVail

STL - EGE

STLEGE

Lambert-St Louis

Tue 1/20

4:15 pm-8:49 pm

1 stop5h 34m

Vail Eagle County

Sat 1/24

7:00 am-7:27 pm

2 stops11h 27m

$304

ChicagoVail

ORD - EGE

ORDEGE

Chicago O'Hare Intl

Fri 3/13

8:05 am-10:06 am

Nonstop3h 01m

Vail Eagle County

Tue 3/17

10:48 am-2:36 pm

Nonstop2h 48m

$315

ChicagoVail

ORD - EGE

ORDEGE

Chicago O'Hare Intl

Fri 3/20

10:34 am-12:40 pm

Nonstop3h 06m

Vail Eagle County

Wed 3/25

2:37 pm-10:24 pm

1 stop6h 47m

$325

ChicagoVail

ORD - EGE

ORDEGE

Chicago O'Hare Intl

Mon 3/9

10:34 am-12:40 pm

Nonstop3h 06m

Vail Eagle County

Fri 3/13

10:48 am-2:36 pm

Nonstop2h 48m

$331

ChicagoVail

ORD - EGE

ORDEGE

Chicago O'Hare Intl

Fri 3/13

5:20 am-10:38 am

1 stop6h 18m

Vail Eagle County

Tue 3/17

3:31 pm-11:59 pm

1 stop7h 28m

$335

ChicagoVail

ORD - EGE

ORDEGE

Chicago O'Hare Intl

Mon 1/19

7:05 am-2:05 pm

1 stop8h 00m

Vail Eagle County

Wed 1/28

3:10 pm-11:56 pm

1 stop7h 46m

$351

MolineVail

MLI - EGE

MLIEGE

Moline Quad-City

Sun 1/11

5:51 am-2:05 pm

1 stop9h 14m

Vail Eagle County

Thu 1/15

3:10 pm-10:33 pm

1 stop6h 23m

$481

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Illinois to Vail

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 Vail?

The cheapest month to fly to Vail from Illinois is in January. Flight prices, which tend to average around $419, are often lower during this time because this is during the off-season. If you aren’t able to travel to Vail during the month of January, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $443.

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

Our data shows that Saturday is the least expensive day to fly to Vail. Tickets to fly out on this day can be as low as $475. Flights from Illinois to Vail on a Wednesday will generally be more expensive and average around $574. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Flying to Vail from Illinois in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $494 when looking at flights departing in the afternoon. Try not to purchase tickets in the evening because they tend to be around $609. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Illinois to Vail Eagle County flight route?

Fly from Chicago O'Hare Intl to Vail Eagle County for the best Illinois - Vail Eagle County flight prices

How far in advance should I book a flight to Vail?

You are more likely to see cheaper flights to Vail from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Vail for around $469 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Vail from Illinois for as low as $309 on momondo.

What cabin class options are available on Illinois to Vail Eagle County flights?

There are 3 cabin classes available to choose from on Illinois to Vail Eagle County 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 Vail flights?

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

Cheap Illinois to Vail flight deals and tips

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

Best Price Found

$260

Fastest flight time

3h 01m

Direct flights

Mon, Wed, Thu, Fri, Sat and Sun

Airports in Vail

1 airport
The best one-way flight to Vail from Illinois in the past 72 hours is $260. The best round-trip flight deal from Illinois to Vail found on momondo in the last 72 hours is $315.
The fastest flight from Illinois to Vail takes 3h 01m
Direct flights go from Illinois to Vail on Monday, Wednesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
There is 1 airport in Vail. From Illinois there are direct flights to Vail Eagle County (EGE).
Search flight deals

  • When did momondo last update prices for flights from Illinois to Vail Eagle County Airport?

    Prices for flights from Illinois to Vail Eagle County Airport were last updated today.

  • How many operators does momondo search for flights from Illinois to Vail Eagle County Airport?

  • How old do you have to be to fly from Illinois to Vail Eagle County Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Vail Eagle County Airport.

  • What documentation or ID do you need to fly to Vail Eagle County Airport?

    The required travel and health documents for your Vail Eagle County Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Vail Eagle County Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Illinois to Vail?

Best airlines flying from Illinois to Vail

Compare and see reviews for airlines that fly from Illinois to Vail with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $259Free CancellationRating
7.2
11,072 reviews
Search American Airlines flights
United AirlinesPriceFrom $291Free CancellationRating
7.4
9,120 reviews
Search United Airlines flights

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Glenwood Springs
Beaver Creek
Avon
Rifle
Eagle

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Vail?

Finding the right flight to Vail from Illinois is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Vail quick and easy, saving you time and money.

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

Yes. All flights to Vail from Illinois on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential Illinois to Vail flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from Illinois to Vail now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Vail and let you know when they change.

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