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: Tue Aug 29 2017 Return: Wed Aug 30 2017 Trip spans 2 days
Frontier
Frontier
DEN
ORD
2h 33m
nonstop
ORD
DEN
2h 50m
nonstop
Depart: Thu Aug 24 2017 Return: Fri Aug 25 2017 Trip spans 2 days
Spirit Airlines
Spirit Airlines
BWI
ORD
2h 09m
nonstop
ORD
BWI
1h 48m
nonstop
Depart: Mon Aug 28 2017 Return: Wed Aug 30 2017 Trip spans 3 days
American Airlines
American Airlines
DCA
ORD
2h 14m
nonstop
ORD
DCA
1h 51m
nonstop
Depart: Thu Sep 21 2017 Return: Tue Sep 26 2017 Trip spans 6 days
United
United
LGA
ORD
2h 31m
nonstop
ORD
LGA
2h 18m
nonstop
Depart: Tue Oct 3 2017 Return: Wed Oct 4 2017 Trip spans 2 days
JetBlue
JetBlue
FLL
ORD
3h 23m
nonstop
ORD
FLL
3h 20m
nonstop
Depart: Tue Oct 3 2017 Return: Tue Oct 10 2017 Trip spans 8 days
Delta
Delta
JFK
ORD
2h 53m
nonstop
ORD
JFK
2h 17m
nonstop
Depart: Tue Sep 12 2017 Return: Wed Sep 13 2017 Trip spans 2 days
Frontier
Frontier
DEN
ORD
2h 36m
nonstop
ORD
DEN
2h 45m
nonstop
Depart: Sat Sep 2 2017 Return: Tue Sep 5 2017 Trip spans 4 days
Spirit Airlines
Spirit Airlines
PDX
ORD
3h 48m
nonstop
ORD
PDX
4h 31m
nonstop
Depart: Tue Aug 29 2017 Return: Wed Aug 30 2017 Trip spans 2 days
American Airlines
American Airlines
DCA
ORD
2h 18m
nonstop
ORD
DCA
1h 51m
nonstop
Depart: Fri Sep 22 2017 Return: Mon Sep 25 2017 Trip spans 4 days
United
United
MSP
ORD
1h 24m
nonstop
ORD
MSP
1h 30m
nonstop
Depart: Sat Sep 2 2017 Return: Tue Sep 5 2017 Trip spans 4 days
Spirit Airlines
Spirit Airlines
BWI
ORD
2h 09m
nonstop
ORD
BWI
1h 48m
nonstop
Depart: Fri Dec 1 2017 Return: Mon Dec 4 2017 Trip spans 4 days
Virgin America
Virgin America
SFO
ORD
4h 19m
nonstop
ORD
SFO
4h 55m
nonstop
Depart: Tue Nov 7 2017 Return: Tue Nov 14 2017 Trip spans 8 days
JetBlue
JetBlue
FLL
ORD
3h 11m
nonstop
ORD
FLL
3h 21m
nonstop
Depart: Wed Aug 30 2017 Return: Sun Sep 3 2017 Trip spans 5 days
American Airlines
American Airlines
DFW
ORD
2h 14m
nonstop
ORD
DFW
2h 26m
nonstop
Depart: Tue Sep 5 2017 Return: Wed Sep 13 2017 Trip spans 9 days
United
United
HPN
ORD
2h 35m
nonstop
ORD
HPN
2h 14m
nonstop
Depart: Mon Sep 4 2017 Return: Fri Sep 8 2017 Trip spans 5 days
Spirit Airlines
Spirit Airlines
BWI
ORD
2h 09m
nonstop
ORD
BWI
1h 53m
nonstop
Depart: Sat Sep 2 2017 Return: Thu Sep 7 2017 Trip spans 6 days
American Airlines
American Airlines
DCA
ORD
2h 10m
nonstop
ORD
DCA
1h 50m
nonstop
Depart: Fri Dec 1 2017 Return: Tue Dec 5 2017 Trip spans 5 days
JetBlue
JetBlue
FLL
ORD
3h 11m
nonstop
ORD
FLL
3h 21m
nonstop
Depart: Tue Sep 12 2017 Return: Wed Sep 13 2017 Trip spans 2 days
Frontier
Frontier
TTN
ORD
2h 16m
nonstop
ORD
TTN
2h 09m
nonstop
Depart: Tue Oct 3 2017 Return: Wed Oct 11 2017 Trip spans 9 days
United
United
HPN
ORD
2h 36m
nonstop
ORD
HPN
2h 14m
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

San Francisco
$179
New York
only $83
only $127
Portland
$81
Baltimore
$81
Minneapolis
$83
Fort Lauderdale
$91
White Plains
$89
Denver
$79
Trenton
$97
Dallas
$83
Washington
$83
Destination

Chicago
$79
Airlines Airline reviews

1066 travelers who booked a flight from Denver to Chicago rated their chosen airlines with an average of 6.4.

Overall
6.5
Boarding
6.8
Crew
7.1
Comfort
6.3
Food
5.4
Entertainment
5.5