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Cheap flights from Colorado (CO) to Illinois (IL)

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Cheap flights from Colorado to Illinois in November 2019

The best prices found for Colorado to Illinois flights for November
27 Nov - 5 Dec
$116pp
DEN
Denver Intl
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
DEN
Denver Intl
26 Nov - 28 Nov
$164pp
DEN
Denver Intl
Delta
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Delta
 
1 STOP
DEN
Denver Intl

Colorado to Illinois 2020 flight deals

Cheap flights to Illinois from Colorado found for next year
25 Jan - 28 Jan
$65pp
DEN
Denver Intl
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
DEN
Denver Intl
8 Feb - 12 Feb
$76pp
DEN
Denver Intl
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
DEN
Denver Intl
8 Jan - 12 Jan
$81pp
DEN
Denver Intl
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
DEN
Denver Intl

Destination information for Illinois

Things to know before you go. Useful info for your trip from Colorado to Illinois
Flight duration
2h 40m

Airports servicing

Colorado Springs (COS)
Denver (DEN)
Durango (DRO)
Eagle County Rgnl (EGE)
Grand Junction (GJT)

Airports servicing

Bloomington (BMI)
Champaign (CMI)
Decatur (DEC)
Moline (MLI)
Marion (MWA)

Related info for your journey

Useful info, stats and facts about Colorado to Illinois flights.

Flight FAQs

From Colorado to Illinois

What days are nonstop flights available from Colorado to Illinois?

Nonstop flights can be found on the following days: Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday.

How popular is this flight route?

Within the past month, 233 users have taken a look at flights from Colorado to Illinois.

What are the most popular airlines that fly from Colorado to Illinois?

Consider Major Airline, Delta or Frontier when booking your flight. These represent the most popular airlines when flying from Colorado to Illinois.

What are the most popular routes from Colorado to Illinois?

Most travelers choose Denver Intl - Chicago O'Hare Intl, Denver Intl - Chicago Midway or Colorado Springs - Chicago O'Hare Intl when deciding on the best route from Colorado to Illinois.

What are the cheapest Flights from Colorado to Illinois?

Looking at all options, your cheapest flight can be booked for $14. While the most popular route (Denver Intl - Chicago O'Hare Intl) can be booked for $66 on average our data indicates $175 when flying from Colorado to Illinois

What are the most reliable airlines from Colorado to Illinois?

Consider GoJet (100%), Spirit Airlines (88%) or Copa Airlines (85%) when booking your flight. These represent the most reliable airlines when flying from Colorado to Illinois.