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.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

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 Apr 15 2017 Return: Tue Apr 18 2017 Trip spans 4 days
Frontier
Frontier
DEN
ORD
2h 26m
nonstop
ORD
DEN
2h 46m
nonstop
Depart: Sat May 6 2017 Return: Mon May 8 2017 Trip spans 3 days
Major Airline
Major Airline
PHL
ORD
17h 01m
nonstop
ORD
PHL
13h 22m
nonstop
Depart: Wed Mar 1 2017 Return: Tue Mar 7 2017 Trip spans 7 days
Spirit Airlines
Spirit Airlines
DEN
ORD
2h 23m
nonstop
ORD
DEN
2h 42m
nonstop
Depart: Thu May 11 2017 Return: Sat May 13 2017 Trip spans 3 days
American Airlines
American Airlines
MSP
ORD
1h 25m
nonstop
ORD
MSP
1h 26m
nonstop
Depart: Tue Apr 4 2017 Return: Tue Apr 11 2017 Trip spans 8 days
United
United
DFW
ORD
2h 22m
nonstop
ORD
DFW
2h 34m
nonstop
Depart: Sat Apr 22 2017 Return: Tue Apr 25 2017 Trip spans 4 days
Delta
Delta
JFK
ORD
2h 46m
nonstop
ORD
JFK
2h 21m
nonstop
Depart: Fri May 5 2017 Return: Wed May 10 2017 Trip spans 6 days
JetBlue
JetBlue
FLL
ORD
3h 12m
nonstop
ORD
FLL
3h 03m
nonstop
Depart: Wed May 24 2017 Return: Tue May 30 2017 Trip spans 7 days
Major Airline
Major Airline
PHL
ORD
5h 18m
nonstop
ORD
PHL
13h 22m
nonstop
Depart: Thu Mar 2 2017 Return: Sat Mar 4 2017 Trip spans 3 days
Spirit Airlines
Spirit Airlines
MSP
ORD
1h 32m
nonstop
ORD
MSP
1h 30m
nonstop
Depart: Thu Mar 2 2017 Return: Tue Mar 7 2017 Trip spans 6 days
Frontier
Frontier
DEN
ORD
2h 38m
nonstop
ORD
DEN
2h 46m
nonstop
Depart: Thu Mar 16 2017 Return: Wed Mar 22 2017 Trip spans 7 days
Spirit Airlines
Spirit Airlines
LGA
ORD
2h 27m
nonstop
ORD
LGA
2h 15m
nonstop
Depart: Mon May 15 2017 Return: Sat May 20 2017 Trip spans 6 days
Major Airline
Major Airline
DEN
ORD
2h 29m
nonstop
ORD
DEN
2h 39m
nonstop
Depart: Tue Mar 21 2017 Return: Wed Mar 22 2017 Trip spans 2 days
Spirit Airlines
Spirit Airlines
LGA
ORD
2h 35m
nonstop
ORD
LGA
2h 15m
nonstop
Depart: Thu Apr 20 2017 Return: Sun Apr 23 2017 Trip spans 4 days
Frontier
Frontier
DEN
ORD
2h 36m
nonstop
ORD
DEN
2h 46m
nonstop
Depart: Tue Apr 4 2017 Return: Tue Apr 18 2017 Trip spans 15 days
Spirit Airlines
Spirit Airlines
LGA
ORD
2h 35m
nonstop
ORD
LGA
2h 07m
nonstop
Depart: Sat Apr 22 2017 Return: Tue Apr 25 2017 Trip spans 4 days
Major Airline
Major Airline
PHL
ORD
5h 02m
nonstop
ORD
PHL
11h 07m
nonstop
Depart: Thu May 18 2017 Return: Mon May 22 2017 Trip spans 5 days
Spirit Airlines
Spirit Airlines
DEN
ORD
2h 29m
nonstop
ORD
DEN
2h 37m
nonstop
Depart: Tue May 2 2017 Return: Wed May 10 2017 Trip spans 9 days
United
United
DFW
ORD
2h 22m
nonstop
ORD
DFW
2h 40m
nonstop
Depart: Fri May 5 2017 Return: Sun May 7 2017 Trip spans 3 days
Major Airline
Major Airline
FLL
ORD
3h 18m
2 stops
ORD
FLL
2h 58m
2 stops
Depart: Wed Jul 12 2017 Return: Wed Jul 19 2017 Trip spans 8 days
United
United
LGA
ORD
2h 38m
nonstop
ORD
LGA
2h 16m
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 $127
Minneapolis
$75
Fort Lauderdale
$87
Denver
$57
Dallas
$113
Philadelphia
$68
Destination

Chicago
$57
Airlines Airline reviews

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

Overall
6.0
Boarding
6.4
Crew
6.6
Comfort
5.6
Food
4.3
Entertainment
4.3