Find Cheap Flights from Chicago O'Hare International to United States

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 from Chicago O'Hare International to United States

(Round-trip)
Depart: Wed Sep 6 2017 Return: Tue Sep 12 2017 Trip spans 7 days
Major Airline
Major Airline
ORD
DEN
2h 36m
nonstop
DEN
ORD
2h 36m
nonstop
Depart: Tue Oct 31 2017 Return: Wed Nov 8 2017 Trip spans 9 days
Multiple Airlines
Multiple Airlines
ORD
DEN
2h 35m
nonstop
DEN
ORD
2h 25m
nonstop
Depart: Mon Aug 28 2017 Return: Wed Sep 6 2017 Trip spans 10 days
United
United
ORD
DEN
2h 36m
nonstop
DEN
ORD
2h 30m
nonstop
Depart: Sat Jul 15 2017 Return: Wed Jul 19 2017 Trip spans 5 days
Spirit Airlines
Spirit Airlines
ORD
DEN
2h 36m
nonstop
DEN
ORD
2h 27m
nonstop
Depart: Sat Dec 16 2017 Return: Sun Dec 17 2017 Trip spans 2 days
JetBlue
JetBlue
ORD
BOS
2h 16m
nonstop
BOS
ORD
2h 57m
nonstop
Depart: Fri Sep 8 2017 Return: Sun Sep 10 2017 Trip spans 3 days
American Airlines
American Airlines
ORD
DCA
1h 53m
nonstop
DCA
ORD
2h 18m
nonstop
Depart: Tue Sep 26 2017 Return: Tue Oct 3 2017 Trip spans 8 days
Major Airline
Major Airline
ORD
DEN
2h 41m
nonstop
DEN
ORD
2h 24m
nonstop
Depart: Tue Aug 29 2017 Return: Wed Sep 6 2017 Trip spans 9 days
Multiple Airlines
Multiple Airlines
ORD
DEN
2h 50m
nonstop
DEN
ORD
2h 30m
nonstop
Depart: Tue Oct 3 2017 Return: Sat Oct 7 2017 Trip spans 5 days
United
United
ORD
DEN
2h 30m
nonstop
DEN
ORD
2h 25m
nonstop
Depart: Wed Jun 28 2017 Return: Mon Jul 3 2017 Trip spans 6 days
Frontier
Frontier
ORD
DEN
2h 46m
nonstop
DEN
ORD
2h 37m
nonstop
Depart: Wed Jul 19 2017 Return: Wed Jul 26 2017 Trip spans 8 days
Spirit Airlines
Spirit Airlines
ORD
DEN
2h 36m
nonstop
DEN
ORD
2h 27m
nonstop
Depart: Mon Aug 28 2017 Return: Tue Aug 29 2017 Trip spans 2 days
United
United
ORD
DEN
2h 36m
nonstop
DEN
ORD
2h 37m
nonstop
Depart: Sat Sep 16 2017 Return: Mon Sep 18 2017 Trip spans 3 days
Multiple Airlines
Multiple Airlines
ORD
DEN
2h 41m
nonstop
DEN
ORD
2h 36m
nonstop
Depart: Wed Aug 2 2017 Return: Mon Aug 7 2017 Trip spans 6 days
Delta
Delta
ORD
DAL
6h 35m
1 stop
DAL
ORD
5h 17m
1 stop
Depart: Sat Sep 23 2017 Return: Sat Sep 30 2017 Trip spans 8 days
United
United
ORD
DEN
2h 41m
nonstop
DEN
ORD
2h 30m
nonstop
Depart: Wed Nov 1 2017 Return: Tue Nov 7 2017 Trip spans 7 days
Major Airline
Major Airline
ORD
BOS
2h 11m
nonstop
BOS
ORD
2h 57m
nonstop
Depart: Tue Jul 18 2017 Return: Tue Jul 25 2017 Trip spans 8 days
Spirit Airlines
Spirit Airlines
ORD
DEN
2h 36m
nonstop
DEN
ORD
2h 27m
nonstop
Depart: Wed Jul 12 2017 Return: Wed Jul 26 2017 Trip spans 15 days
Multiple Airlines
Multiple Airlines
ORD
DEN
2h 36m
nonstop
DEN
ORD
2h 36m
nonstop
Depart: Wed Aug 2 2017 Return: Tue Aug 8 2017 Trip spans 7 days
Spirit Airlines
Spirit Airlines
ORD
DEN
2h 36m
nonstop
DEN
ORD
2h 27m
nonstop
Depart: Tue Jul 18 2017 Return: Wed Jul 26 2017 Trip spans 9 days
Multiple Airlines
Multiple Airlines
ORD
DEN
2h 36m
nonstop
DEN
ORD
2h 36m
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.

Airports
Origin

Chicago
$89
Destination

Denver
$89
Dallas
$234
Washington
$157
Boston
$113