Find Cheap Flights from Chicago 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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Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Chicago to United States

(Round-trip)
Depart: Sat Oct 28 2017 Return: Sat Nov 4 2017 Trip spans 8 days
American Airlines
American Airlines
ORD
MIA
3h 02m
nonstop
MIA
ORD
3h 24m
nonstop
Depart: Sat Oct 28 2017 Return: Wed Nov 1 2017 Trip spans 5 days
Spirit Airlines
Spirit Airlines
ORD
DEN
2h 43m
nonstop
DEN
ORD
2h 27m
nonstop
Depart: Wed Jan 17 2018 Return: Sat Jan 20 2018 Trip spans 4 days
Multiple Airlines
Multiple Airlines
ORD
TPA
2h 51m
nonstop
TPA
ORD
3h 06m
nonstop
Depart: Sun Nov 5 2017 Return: Wed Nov 8 2017 Trip spans 4 days
Frontier
Frontier
ORD
MIA
3h 15m
nonstop
MIA
ORD
3h 23m
nonstop
Depart: Wed Nov 29 2017 Return: Sat Dec 2 2017 Trip spans 4 days
United
United
ORD
DEN
2h 45m
nonstop
DEN
ORD
2h 25m
nonstop
Depart: Sat Oct 21 2017 Return: Tue Oct 24 2017 Trip spans 4 days
American Airlines
American Airlines
ORD
RSW
2h 46m
nonstop
RSW
ORD
3h 11m
nonstop
Depart: Mon Oct 23 2017 Return: Tue Oct 31 2017 Trip spans 9 days
American Airlines
American Airlines
ORD
RSW
2h 46m
nonstop
RSW
ORD
3h 08m
nonstop
Depart: Wed Nov 8 2017 Return: Sat Nov 11 2017 Trip spans 4 days
Spirit Airlines
Spirit Airlines
ORD
DEN
2h 43m
nonstop
DEN
ORD
2h 24m
nonstop
Depart: Tue Oct 24 2017 Return: Thu Nov 16 2017 Trip spans 24 days
Frontier
Frontier
ORD
MIA
3h 09m
nonstop
MIA
ORD
3h 23m
nonstop
Depart: Wed Dec 6 2017 Return: Mon Dec 11 2017 Trip spans 6 days
Multiple Airlines
Multiple Airlines
ORD
DEN
2h 57m
nonstop
DEN
ORD
2h 25m
nonstop
Depart: Thu Nov 30 2017 Return: Sat Dec 9 2017 Trip spans 10 days
United
United
ORD
DEN
2h 41m
nonstop
DEN
ORD
2h 26m
nonstop
Depart: Wed Oct 25 2017 Return: Thu Nov 16 2017 Trip spans 23 days
Frontier
Frontier
ORD
MIA
3h 09m
nonstop
MIA
ORD
3h 23m
nonstop
Depart: Sat Oct 28 2017 Return: Wed Nov 1 2017 Trip spans 5 days
Spirit Airlines
Spirit Airlines
ORD
FLL
3h 06m
nonstop
FLL
ORD
3h 12m
nonstop
Depart: Tue Nov 14 2017 Return: Wed Nov 15 2017 Trip spans 2 days
American Airlines
American Airlines
ORD
MIA
3h 06m
nonstop
MIA
ORD
3h 24m
nonstop
Depart: Sat Dec 2 2017 Return: Sat Dec 9 2017 Trip spans 8 days
United
United
ORD
DEN
2h 47m
nonstop
DEN
ORD
2h 24m
nonstop
Depart: Sat Oct 28 2017 Return: Wed Nov 15 2017 Trip spans 19 days
Multiple Airlines
Multiple Airlines
ORD
RSW
2h 46m
nonstop
RSW
ORD
3h 04m
nonstop
Depart: Thu Oct 26 2017 Return: Thu Nov 16 2017 Trip spans 22 days
Frontier
Frontier
ORD
MIA
3h 09m
nonstop
MIA
ORD
3h 23m
nonstop
Depart: Sat Nov 11 2017 Return: Tue Nov 14 2017 Trip spans 4 days
Spirit Airlines
Spirit Airlines
ORD
FLL
3h 02m
nonstop
FLL
ORD
3h 14m
nonstop
Depart: Tue Dec 12 2017 Return: Fri Dec 15 2017 Trip spans 4 days
American Airlines
American Airlines
ORD
MIA
3h 02m
nonstop
MIA
ORD
3h 21m
nonstop
Depart: Tue Dec 5 2017 Return: Sat Dec 9 2017 Trip spans 5 days
United
United
ORD
DEN
2h 45m
nonstop
DEN
ORD
2h 27m
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
$49
Destination

Fort Lauderdale
$67
Denver
$65
Tampa
$65
Miami
$49
Fort Myers
$53