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Cheap flights from Illinois to Denver from $221

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 1/16. 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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Cheap round-trip flights

American Airlines Logo
7:55 am - 3:34 pmSTL-EGE
8h 39m1 stop
American Airlines Logo
10:34 am - 5:56 pmEGE-STL
6h 22m1 stop
$249American Airlines
Find Deal
Fri, Feb 27 - Tue, Mar 3
American Airlines Logo
9:45 am - 11:52 amORD-EGE
3h 07mnonstop
American Airlines Logo
1:03 pm - 4:55 pmEGE-ORD
2h 52mnonstop
$249American Airlines
Find Deal
Sun, Jan 11 - Sat, Jan 17
American Airlines Logo
10:00 am - 6:04 pmORD-EGE
9h 04m1 stop
American Airlines Logo
1:03 pm - 4:55 pmEGE-ORD
2h 52mnonstop
$259American Airlines
Find Deal
Sun, Jan 11 - Sat, Jan 17
American Airlines Logo
10:00 am - 6:04 pmORD-EGE
9h 04m1 stop
American Airlines Logo
10:27 am - 7:20 pmEGE-ORD
7h 53m1 stop
$269American Airlines
Find Deal
Sun, Jan 11 - Sat, Jan 17
United Airlines Logo
4:50 pm - 8:08 pmSTL-EGE
4h 18m1 stop
United Airlines Logo
3:15 pm - 9:54 pmEGE-STL
5h 39m1 stop
$273United Airlines
Find Deal
Fri, Oct 24 - Thu, Oct 30
Delta Logo
7:10 am - 1:55 pmORD-EGE
7h 45m1 stop
Delta Logo
11:31 am - 8:38 pmEGE-ORD
8h 07m2 stops
$274Delta
Find Deal
Sun, Jan 11 - Sat, Jan 17
United Airlines Logo
12:25 pm - 8:08 pmSTL-EGE
8h 43m2 stops
United Airlines Logo
3:15 pm - 9:54 pmEGE-STL
5h 39m1 stop
$278United Airlines
Find Deal
Fri, Oct 24 - Thu, Oct 30
United Airlines Logo
4:50 pm - 8:08 pmSTL-EGE
4h 18m1 stop
United Airlines Logo
1:40 pm - 8:46 pmEGE-STL
6h 06m1 stop
$280United Airlines
Find Deal
Fri, Oct 17 - Tue, Oct 21
Alaska Airlines Logo
11:54 am - 5:40 pmSTL-EGE
30h 46m2 stops
Alaska Airlines Logo
12:12 pm - 1:52 pmEGE-STL
24h 40m3 stops
$783Alaska Airlines
Find Deal
Fri, Feb 27 - Tue, Mar 3
Alaska Airlines Logo
7:00 am - 12:38 pmSTL-EGE
30h 38m2 stops
Alaska Airlines Logo
1:17 pm - 11:59 pmEGE-STL
33h 42m2 stops
$1,593Alaska Airlines
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Fri, Dec 26 - Sat, Jan 3

American Airlines flights from Illinois to Vail

Our best American Airlines deals on Illinois to Vail flight tickets
American Airlines
Jan 11
ORD9:45 amChicago O'Hare Intl
3h 07m
EGE11:52 amVail Eagle County
Jan 17
EGE1:03 pmVail Eagle County
2h 52m
ORD4:55 pmChicago O'Hare Intl
$249
Find similar
American Airlines
Jan 11
ORD10:00 amChicago O'Hare Intl
9h 04m
1 stop
EGE6:04 pmVail Eagle County
Jan 17
EGE1:03 pmVail Eagle County
2h 52m
ORD4:55 pmChicago O'Hare Intl
$259
Find similar
American Airlines
Jan 11
ORD10:00 amChicago O'Hare Intl
9h 04m
1 stop
EGE6:04 pmVail Eagle County
Jan 17
EGE10:27 amVail Eagle County
7h 53m
1 stop
ORD7:20 pmChicago O'Hare Intl
$269
Find similar

United Airlines flights from Illinois to Vail

Our best United Airlines deals on Illinois to Vail flight tickets
United Airlines
Oct 24
STL4:50 pmLambert-St Louis
4h 18m
1 stop
EGE8:08 pmVail Eagle County
Oct 30
EGE3:15 pmVail Eagle County
5h 39m
1 stop
STL9:54 pmLambert-St Louis
$273
Find similar
United Airlines
Oct 24
STL12:25 pmLambert-St Louis
8h 43m
2 stops
EGE8:08 pmVail Eagle County
Oct 30
EGE3:15 pmVail Eagle County
5h 39m
1 stop
STL9:54 pmLambert-St Louis
$278
Find similar
United Airlines
Oct 17
STL4:50 pmLambert-St Louis
4h 18m
1 stop
EGE8:08 pmVail Eagle County
Oct 21
EGE1:40 pmVail Eagle County
6h 06m
1 stop
STL8:46 pmLambert-St Louis
$280
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 September 15, 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

Fri 2/27

7:55 am-3:34 pm

1 stop8h 39m

Vail Eagle County

Tue 3/3

10:34 am-5:56 pm

1 stop6h 22m

$249

ChicagoVail

ORD - EGE

ORDEGE

Chicago O'Hare Intl

Sun 1/11

9:45 am-11:52 am

Nonstop3h 07m

Vail Eagle County

Sat 1/17

1:03 pm-4:55 pm

Nonstop2h 52m

$249

ChicagoVail

ORD - EGE

ORDEGE

Chicago O'Hare Intl

Sun 1/11

10:00 am-6:04 pm

1 stop9h 04m

Vail Eagle County

Sat 1/17

1:03 pm-4:55 pm

Nonstop2h 52m

$259

ChicagoVail

ORD - EGE

ORDEGE

Chicago O'Hare Intl

Sun 1/11

10:00 am-6:04 pm

1 stop9h 04m

Vail Eagle County

Sat 1/17

10:27 am-7:20 pm

1 stop7h 53m

$269

St. LouisVail

STL - EGE

STLEGE

Lambert-St Louis

Fri 10/24

4:50 pm-8:08 pm

1 stop4h 18m

Vail Eagle County

Thu 10/30

3:15 pm-9:54 pm

1 stop5h 39m

$273

ChicagoVail

ORD - EGE

ORDEGE

Chicago O'Hare Intl

Sun 1/11

7:10 am-1:55 pm

1 stop7h 45m

Vail Eagle County

Sat 1/17

11:31 am-8:38 pm

2 stops8h 07m

$274

St. LouisVail

STL - EGE

STLEGE

Lambert-St Louis

Fri 10/24

12:25 pm-8:08 pm

2 stops8h 43m

Vail Eagle County

Thu 10/30

3:15 pm-9:54 pm

1 stop5h 39m

$278

St. LouisVail

STL - EGE

STLEGE

Lambert-St Louis

Fri 10/17

4:50 pm-8:08 pm

1 stop4h 18m

Vail Eagle County

Tue 10/21

1:40 pm-8:46 pm

1 stop6h 06m

$280

St. LouisVail

STL - EGE

STLEGE

Lambert-St Louis

Fri 2/27

11:54 am-5:40 pm

2 stops30h 46m

Vail Eagle County

Tue 3/3

12:12 pm-1:52 pm

3 stops24h 40m

$783

St. LouisVail

STL - EGE

STLEGE

Lambert-St Louis

Fri 12/26

7:00 am-12:38 pm

2 stops30h 38m

Vail Eagle County

Sat 1/3

1:17 pm-11:59 pm

2 stops33h 42m

$1,593

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 April. Flight prices, which tend to average around $443, 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 April, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $468.

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

Our data shows that Wednesday is the least expensive day to fly to Vail. Tickets to fly out on this day can be as low as $479. Flights from Illinois to Vail on a Monday will generally be more expensive and average around $609. 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 at noon is the least expensive time of day to depart. momondo users have found prices as low as $528 when looking at flights departing at noon. Try not to purchase tickets in the evening because they tend to be around $605. 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 $504 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 $376 on momondo.

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

There are 4 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?

You could potentially save up to 10% on your flight if you consider stops on a Illinois to Vail flight.

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

$268

Fastest flight time

2h 49m

Direct flights

Mon, Tue, Thu, Fri, Sat and Sun

Airports in Vail

1 airport
The best flight deal from Illinois to Vail found on momondo in the last 72 hours is $268
The fastest flight from Illinois to Vail takes 2h 49m
Direct flights go from Illinois to Vail on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
There is 1 airport near Vail: 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 $324Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $359Free CancellationRating
7.4
8,929 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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