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
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights to Chicago O'Hare International

(Round-trip)
Depart: Wed Feb 22 2017 Return: Mon Feb 27 2017 Trip spans 6 days
Frontier
Frontier
DEN
ORD
2h 38m
nonstop
ORD
DEN
2h 53m
nonstop
Depart: Sun Feb 26 2017 Return: Tue Feb 28 2017 Trip spans 3 days
Spirit Airlines
Spirit Airlines
MSP
ORD
1h 32m
nonstop
ORD
MSP
1h 30m
nonstop
Depart: Tue Feb 28 2017 Return: Wed Mar 1 2017 Trip spans 2 days
United
United
PHX
ORD
3h 16m
nonstop
ORD
PHX
3h 59m
nonstop
Depart: Tue Feb 21 2017 Return: Wed Feb 22 2017 Trip spans 2 days
Major Airline
Major Airline
FLL
ORD
3h 19m
nonstop
ORD
FLL
2h 59m
nonstop
Depart: Fri Apr 14 2017 Return: Sun Apr 16 2017 Trip spans 3 days
American Airlines
American Airlines
MSP
ORD
1h 24m
nonstop
ORD
MSP
1h 24m
nonstop
Depart: Tue Feb 28 2017 Return: Tue Mar 14 2017 Trip spans 14 days
JetBlue
JetBlue
BOS
ORD
3h 00m
nonstop
ORD
BOS
2h 15m
nonstop
Depart: Thu Feb 23 2017 Return: Mon Feb 27 2017 Trip spans 5 days
Frontier
Frontier
DEN
ORD
2h 38m
nonstop
ORD
DEN
2h 53m
nonstop
Depart: Wed Mar 1 2017 Return: Mon Mar 6 2017 Trip spans 6 days
Frontier
Frontier
DEN
ORD
2h 38m
nonstop
ORD
DEN
2h 47m
nonstop
Depart: Fri Mar 3 2017 Return: Mon Mar 6 2017 Trip spans 4 days
Frontier
Frontier
DEN
ORD
2h 38m
nonstop
ORD
DEN
2h 47m
nonstop
Depart: Thu May 4 2017 Return: Tue May 9 2017 Trip spans 6 days
Delta
Delta
JFK
ORD
2h 38m
nonstop
ORD
JFK
2h 14m
nonstop
Depart: Wed Mar 1 2017 Return: Fri Mar 3 2017 Trip spans 3 days
Spirit Airlines
Spirit Airlines
MSP
ORD
1h 32m
nonstop
ORD
MSP
1h 30m
nonstop
Depart: Tue Mar 7 2017 Return: Tue Mar 14 2017 Trip spans 7 days
Frontier
Frontier
DEN
ORD
2h 39m
nonstop
ORD
DEN
2h 47m
nonstop
Depart: Thu Mar 9 2017 Return: Mon Mar 13 2017 Trip spans 4 days
Spirit Airlines
Spirit Airlines
LGA
ORD
2h 35m
nonstop
ORD
LGA
2h 13m
nonstop
Depart: Thu Feb 23 2017 Return: Tue Feb 28 2017 Trip spans 6 days
Major Airline
Major Airline
FLL
ORD
3h 19m
nonstop
ORD
FLL
2h 59m
nonstop
Depart: Mon Mar 13 2017 Return: Thu Mar 16 2017 Trip spans 4 days
Spirit Airlines
Spirit Airlines
LGA
ORD
2h 35m
nonstop
ORD
LGA
2h 15m
nonstop
Depart: Wed Mar 1 2017 Return: Mon Mar 6 2017 Trip spans 6 days
Major Airline
Major Airline
FLL
ORD
3h 14m
nonstop
ORD
FLL
3h 24m
nonstop
Depart: Sat Apr 29 2017 Return: Wed May 3 2017 Trip spans 5 days
American Airlines
American Airlines
BOS
ORD
3h 00m
nonstop
ORD
BOS
2h 15m
nonstop
Depart: Thu Mar 23 2017 Return: Sat Mar 25 2017 Trip spans 3 days
Spirit Airlines
Spirit Airlines
LGA
ORD
2h 27m
nonstop
ORD
LGA
2h 13m
nonstop
Depart: Fri Mar 3 2017 Return: Tue Mar 7 2017 Trip spans 5 days
Major Airline
Major Airline
FLL
ORD
3h 14m
nonstop
ORD
FLL
2h 59m
nonstop
Depart: Fri May 5 2017 Return: Tue May 9 2017 Trip spans 5 days
American Airlines
American Airlines
BOS
ORD
3h 04m
nonstop
ORD
BOS
2h 18m
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
only $75
only $145
Minneapolis
$75
Fort Lauderdale
$85
Phoenix
$81
Denver
$57
Boston
$97
Destination

Chicago
$57
Airlines Airline reviews

598 travelers who booked a flight from Denver to Chicago rated their chosen airlines with an average of 5.8.

Overall
6.0
Boarding
6.2
Crew
6.7
Comfort
5.7
Food
4.3
Entertainment
4.3