Find Cheap Flights to Chicago O'Hare International

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
Students
under 26
The price shown for each flight will be the average for all passengers including any infants.
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Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights to Chicago O'Hare International

(Round-trip)
Depart: Sat Dec 3 2016 Return: Sat Dec 10 2016 Trip spans 8 days
Major Airline
Major Airline
DEN
ORD
2h 24m
nonstop
ORD
DEN
2h 42m
nonstop
Depart: Sat Feb 11 2017 Return: Tue Feb 14 2017 Trip spans 4 days
Frontier
Frontier
DEN
ORD
2h 44m
nonstop
ORD
DEN
2h 51m
nonstop
Depart: Sat Feb 4 2017 Return: Tue Feb 7 2017 Trip spans 4 days
American Airlines
American Airlines
MSP
ORD
1h 31m
nonstop
ORD
MSP
1h 25m
nonstop
Depart: Wed Feb 1 2017 Return: Wed Feb 8 2017 Trip spans 8 days
Spirit Airlines
Spirit Airlines
BWI
ORD
2h 14m
nonstop
ORD
BWI
1h 51m
nonstop
Depart: Sun Dec 11 2016 Return: Wed Dec 14 2016 Trip spans 4 days
Major Airline
Major Airline
DEN
ORD
2h 44m
nonstop
ORD
DEN
2h 51m
nonstop
Depart: Wed Dec 14 2016 Return: Sun Dec 18 2016 Trip spans 5 days
United
United
BOS
ORD
2h 54m
nonstop
ORD
BOS
2h 12m
nonstop
Depart: Wed May 3 2017 Return: Sat May 6 2017 Trip spans 4 days
JetBlue
JetBlue
JFK
ORD
2h 44m
nonstop
ORD
JFK
2h 22m
nonstop
Depart: Thu Jan 5 2017 Return: Sun Jan 8 2017 Trip spans 4 days
Major Airline
Major Airline
DEN
ORD
2h 24m
nonstop
ORD
DEN
2h 43m
nonstop
Depart: Sun Jan 8 2017 Return: Sat Jan 14 2017 Trip spans 7 days
Major Airline
Major Airline
DEN
ORD
2h 27m
nonstop
ORD
DEN
2h 50m
nonstop
Depart: Sun Jan 22 2017 Return: Sun Jan 29 2017 Trip spans 8 days
Delta
Delta
JFK
ORD
2h 46m
nonstop
ORD
JFK
2h 23m
nonstop
Depart: Fri Jan 13 2017 Return: Tue Jan 24 2017 Trip spans 12 days
Major Airline
Major Airline
DEN
ORD
2h 44m
nonstop
ORD
DEN
2h 51m
nonstop
Depart: Sun Jan 22 2017 Return: Mon Jan 23 2017 Trip spans 2 days
Major Airline
Major Airline
DEN
ORD
2h 27m
nonstop
ORD
DEN
2h 44m
nonstop
Depart: Sat Mar 4 2017 Return: Mon Mar 6 2017 Trip spans 3 days
Frontier
Frontier
DEN
ORD
2h 27m
nonstop
ORD
DEN
2h 47m
nonstop
Depart: Tue Apr 11 2017 Return: Wed Apr 19 2017 Trip spans 9 days
Major Airline
Major Airline
DEN
ORD
2h 28m
nonstop
ORD
DEN
2h 44m
nonstop
Depart: Tue Apr 11 2017 Return: Fri Apr 14 2017 Trip spans 4 days
American Airlines
American Airlines
MSP
ORD
1h 48m
nonstop
ORD
MSP
1h 29m
nonstop
Depart: Sat Jan 28 2017 Return: Tue Jan 31 2017 Trip spans 4 days
Spirit Airlines
Spirit Airlines
DFW
ORD
2h 19m
nonstop
ORD
DFW
2h 32m
nonstop
Depart: Thu Dec 8 2016 Return: Sun Dec 11 2016 Trip spans 4 days
Frontier
Frontier
PHX
ORD
3h 36m
nonstop
ORD
PHX
3h 55m
nonstop
Depart: Mon Feb 6 2017 Return: Wed Feb 8 2017 Trip spans 3 days
Spirit Airlines
Spirit Airlines
DFW
ORD
2h 19m
nonstop
ORD
DFW
2h 32m
nonstop
Depart: Sat Dec 24 2016 Return: Fri Jan 6 2017 Trip spans 14 days
Frontier
Frontier
PHX
ORD
3h 36m
nonstop
ORD
PHX
3h 55m
nonstop
Depart: Sat Jan 14 2017 Return: Mon Jan 16 2017 Trip spans 3 days
Frontier
Frontier
PHX
ORD
3h 34m
nonstop
ORD
PHX
3h 55m
nonstop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an email and someone from our team will get back to you promptly.

^ The fares displayed in KAYAK ads found on other sites include all taxes and fees for economy class travel and were found by KAYAK users in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.
Airports
Origin

New York
$107
Baltimore
$81
Minneapolis
$71
Phoenix
$77
Denver
$49
Dallas
$84
Boston
$105
Destination

Chicago
$49
Airlines Airline reviews

585 travelers who booked a flight from Denver to Chicago rated their chosen airlines with an average of 5.7.

Overall
5.9
Boarding
6.1
Crew
6.5
Comfort
5.6
Food
4.5
Entertainment
4.5