Find Deals on International 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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Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from worldwide to Chicago O'Hare International

(Round-trip)
Depart: Wed Oct 18 2017 Return: Wed Oct 25 2017 Trip spans 8 days
United
United
DEN
ORD
2h 18m
nonstop
ORD
DEN
2h 32m
nonstop
Depart: Wed Oct 25 2017 Return: Wed Nov 1 2017 Trip spans 8 days
American Airlines
American Airlines
DEN
ORD
2h 30m
nonstop
ORD
DEN
2h 36m
nonstop
Depart: Sat Nov 11 2017 Return: Tue Nov 14 2017 Trip spans 4 days
Multiple Airlines
Multiple Airlines
DEN
ORD
2h 25m
nonstop
ORD
DEN
2h 43m
nonstop
Depart: Wed Sep 27 2017 Return: Wed Oct 4 2017 Trip spans 8 days
Frontier
Frontier
AUS
ORD
2h 43m
nonstop
ORD
AUS
2h 48m
nonstop
Depart: Sat Oct 28 2017 Return: Tue Oct 31 2017 Trip spans 4 days
United
United
DEN
ORD
2h 29m
nonstop
ORD
DEN
2h 40m
nonstop
Depart: Tue Nov 7 2017 Return: Wed Nov 8 2017 Trip spans 2 days
American Airlines
American Airlines
DEN
ORD
2h 33m
nonstop
ORD
DEN
2h 43m
nonstop
Depart: Sat Sep 30 2017 Return: Wed Oct 4 2017 Trip spans 5 days
Frontier
Frontier
AUS
ORD
2h 43m
nonstop
ORD
AUS
2h 48m
nonstop
Depart: Tue Oct 31 2017 Return: Sat Nov 4 2017 Trip spans 5 days
United
United
DEN
ORD
2h 25m
nonstop
ORD
DEN
2h 45m
nonstop
Depart: Fri Dec 8 2017 Return: Sat Jan 6 2018 Trip spans 30 days
American Airlines
American Airlines
DEN
ORD
2h 26m
nonstop
ORD
DEN
2h 49m
nonstop
Depart: Thu Oct 5 2017 Return: Tue Oct 10 2017 Trip spans 6 days
Frontier
Frontier
MIA
ORD
3h 19m
nonstop
ORD
MIA
3h 09m
nonstop
Depart: Wed Nov 1 2017 Return: Sat Nov 11 2017 Trip spans 11 days
United
United
DEN
ORD
2h 27m
nonstop
ORD
DEN
2h 45m
nonstop
Depart: Wed Jan 10 2018 Return: Sat Jan 13 2018 Trip spans 4 days
American Airlines
American Airlines
DEN
ORD
2h 25m
nonstop
ORD
DEN
2h 44m
nonstop
Depart: Tue Oct 10 2017 Return: Thu Oct 19 2017 Trip spans 10 days
Frontier
Frontier
MIA
ORD
3h 19m
nonstop
ORD
MIA
3h 09m
nonstop
Depart: Wed Nov 8 2017 Return: Thu Nov 16 2017 Trip spans 9 days
United
United
DEN
ORD
2h 25m
nonstop
ORD
DEN
2h 41m
nonstop
Depart: Thu Jan 18 2018 Return: Tue Jan 23 2018 Trip spans 6 days
American Airlines
American Airlines
DEN
ORD
2h 25m
nonstop
ORD
DEN
2h 38m
nonstop
Depart: Wed Oct 11 2017 Return: Thu Oct 19 2017 Trip spans 9 days
Frontier
Frontier
MIA
ORD
3h 19m
nonstop
ORD
MIA
3h 09m
nonstop
Depart: Sat Nov 11 2017 Return: Thu Nov 16 2017 Trip spans 6 days
United
United
DEN
ORD
2h 24m
nonstop
ORD
DEN
2h 41m
nonstop
Depart: Fri Jan 19 2018 Return: Sun Jan 21 2018 Trip spans 3 days
American Airlines
American Airlines
DEN
ORD
2h 29m
nonstop
ORD
DEN
2h 49m
nonstop
Depart: Thu Oct 12 2017 Return: Wed Oct 18 2017 Trip spans 7 days
Frontier
Frontier
MIA
ORD
3h 19m
nonstop
ORD
MIA
3h 09m
nonstop
Depart: Tue Nov 14 2017 Return: Thu Nov 16 2017 Trip spans 3 days
United
United
DEN
ORD
2h 26m
nonstop
ORD
DEN
2h 45m
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.

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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.

Airports
Origin

Denver
$71
Austin
$77
Miami
$77
Destination

Chicago
$71
Airlines Airline reviews

245 travelers who booked a flight from Denver to Chicago rated their chosen airlines with an average of 6.7.

Overall
7.1
Boarding
7.2
Crew
7.7
Comfort
6.4
Food
5.9
Entertainment
5.8