Find Deals on International Flights from 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 Chicago O'Hare International to worldwide

(Round-trip)
Depart: Thu Jun 1 2017 Return: Mon Jun 5 2017 Trip spans 5 days
Frontier
Frontier
ORD
DEN
2h 46m
nonstop
DEN
ORD
2h 36m
nonstop
Depart: Tue May 23 2017 Return: Sun May 28 2017 Trip spans 6 days
Spirit Airlines
Spirit Airlines
ORD
DEN
2h 37m
nonstop
DEN
ORD
2h 29m
nonstop
Depart: Thu Aug 24 2017 Return: Tue Aug 29 2017 Trip spans 6 days
Major Airline
Major Airline
ORD
DEN
2h 36m
nonstop
DEN
ORD
2h 25m
nonstop
Depart: Wed Sep 20 2017 Return: Tue Sep 26 2017 Trip spans 7 days
JetBlue
JetBlue
ORD
BOS
2h 16m
nonstop
BOS
ORD
2h 44m
nonstop
Depart: Tue May 9 2017 Return: Sat May 13 2017 Trip spans 5 days
United
United
ORD
LAS
3h 59m
nonstop
LAS
ORD
3h 29m
nonstop
Depart: Thu Sep 28 2017 Return: Mon Oct 2 2017 Trip spans 5 days
American Airlines
American Airlines
ORD
LGA
2h 20m
nonstop
LGA
ORD
2h 29m
nonstop
Depart: Sat Jul 1 2017 Return: Tue Jul 4 2017 Trip spans 4 days
Frontier
Frontier
ORD
DEN
2h 44m
nonstop
DEN
ORD
2h 36m
nonstop
Depart: Sun Jul 2 2017 Return: Sat Jul 8 2017 Trip spans 7 days
Frontier
Frontier
ORD
DEN
2h 44m
nonstop
DEN
ORD
2h 32m
nonstop
Depart: Thu Jun 1 2017 Return: Sun Jun 4 2017 Trip spans 4 days
Spirit Airlines
Spirit Airlines
ORD
DEN
2h 36m
nonstop
DEN
ORD
2h 29m
nonstop
Depart: Thu Sep 7 2017 Return: Thu Sep 14 2017 Trip spans 8 days
Major Airline
Major Airline
ORD
DEN
2h 54m
nonstop
DEN
ORD
2h 30m
nonstop
Depart: Fri Jul 28 2017 Return: Sat Aug 5 2017 Trip spans 9 days
Virgin America
Virgin America
ORD
SFO
4h 45m
nonstop
SFO
ORD
4h 10m
nonstop
Depart: Wed Jul 12 2017 Return: Sun Jul 16 2017 Trip spans 5 days
Frontier
Frontier
ORD
DEN
2h 44m
nonstop
DEN
ORD
2h 32m
nonstop
Depart: Fri Sep 1 2017 Return: Tue Sep 5 2017 Trip spans 5 days
Spirit Airlines
Spirit Airlines
ORD
DEN
2h 38m
nonstop
DEN
ORD
2h 27m
nonstop
Depart: Wed May 10 2017 Return: Tue May 16 2017 Trip spans 7 days
JetBlue
JetBlue
ORD
JFK
2h 16m
nonstop
JFK
ORD
2h 54m
nonstop
Depart: Tue Jun 6 2017 Return: Wed Jun 7 2017 Trip spans 2 days
United
United
ORD
LAS
3h 59m
nonstop
LAS
ORD
3h 41m
nonstop
Depart: Sat Jun 3 2017 Return: Tue Jun 6 2017 Trip spans 4 days
Major Airline
Major Airline
ORD
BOS
2h 19m
nonstop
BOS
ORD
2h 49m
nonstop
Depart: Thu Apr 27 2017 Return: Tue May 2 2017 Trip spans 6 days
Delta
Delta
ORD
JFK
2h 21m
nonstop
JFK
ORD
2h 58m
nonstop
Depart: Tue Aug 1 2017 Return: Thu Aug 3 2017 Trip spans 3 days
Frontier
Frontier
ORD
DEN
2h 50m
nonstop
DEN
ORD
2h 33m
nonstop
Depart: Sat Sep 23 2017 Return: Tue Sep 26 2017 Trip spans 4 days
Spirit Airlines
Spirit Airlines
ORD
DEN
2h 35m
nonstop
DEN
ORD
2h 25m
nonstop
Depart: Tue Jul 4 2017 Return: Wed Jul 12 2017 Trip spans 9 days
United
United
ORD
LGA
2h 10m
nonstop
LGA
ORD
2h 31m
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
$99
Destination

San Francisco
$232
New York
only $127
only $127
Denver
$99
Las Vegas
$127
Boston
$113