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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Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights to Chicago O'Hare International

(Round-trip)
Depart: Wed Oct 5 2016 Return: Sat Oct 15 2016 Trip spans 11 days
Major Airline
Major Airline
PHL
ORD
2h 38m
nonstop
ORD
PHL
2h 13m
nonstop
Depart: Tue Sep 27 2016 Return: Sat Oct 1 2016 Trip spans 5 days
Frontier
Frontier
SEA
ORD
4h 00m
nonstop
ORD
SEA
4h 30m
nonstop
Depart: Tue Oct 11 2016 Return: Thu Oct 20 2016 Trip spans 10 days
American Airlines
American Airlines
MSP
ORD
1h 31m
nonstop
ORD
MSP
1h 28m
nonstop
Depart: Thu Oct 13 2016 Return: Sat Oct 15 2016 Trip spans 3 days
United
United
MSP
ORD
1h 27m
nonstop
ORD
MSP
1h 38m
nonstop
Depart: Wed Sep 28 2016 Return: Fri Sep 30 2016 Trip spans 3 days
Spirit Airlines
Spirit Airlines
MSP
ORD
1h 35m
nonstop
ORD
MSP
1h 27m
nonstop
Depart: Tue Oct 18 2016 Return: Sun Oct 23 2016 Trip spans 6 days
Major Airline
Major Airline
PHL
ORD
2h 38m
nonstop
ORD
PHL
2h 13m
nonstop
Depart: Tue Oct 18 2016 Return: Tue Oct 25 2016 Trip spans 8 days
JetBlue
JetBlue
JFK
ORD
2h 31m
nonstop
ORD
JFK
2h 16m
nonstop
Depart: Wed Oct 26 2016 Return: Sat Oct 29 2016 Trip spans 4 days
Major Airline
Major Airline
PHL
ORD
2h 38m
nonstop
ORD
PHL
2h 13m
nonstop
Depart: Wed Oct 19 2016 Return: Sat Oct 29 2016 Trip spans 11 days
Frontier
Frontier
SEA
ORD
4h 01m
nonstop
ORD
SEA
4h 31m
nonstop
Depart: Fri Oct 28 2016 Return: Sat Oct 29 2016 Trip spans 2 days
Delta
Delta
LGA
ORD
2h 42m
nonstop
ORD
LGA
2h 13m
nonstop
Depart: Mon Nov 7 2016 Return: Sun Nov 13 2016 Trip spans 7 days
American Airlines
American Airlines
MSP
ORD
1h 33m
nonstop
ORD
MSP
1h 24m
nonstop
Depart: Wed Sep 28 2016 Return: Sat Oct 1 2016 Trip spans 4 days
Major Airline
Major Airline
SEA
ORD
4h 00m
nonstop
ORD
SEA
4h 30m
nonstop
Depart: Mon Oct 3 2016 Return: Tue Oct 4 2016 Trip spans 2 days
Major Airline
Major Airline
SEA
ORD
4h 00m
nonstop
ORD
SEA
4h 30m
nonstop
Depart: Sat Oct 1 2016 Return: Tue Oct 4 2016 Trip spans 4 days
United
United
DFW
ORD
2h 28m
nonstop
ORD
DFW
2h 29m
nonstop
Depart: Tue Oct 4 2016 Return: Wed Oct 5 2016 Trip spans 2 days
Spirit Airlines
Spirit Airlines
BWI
ORD
2h 10m
nonstop
ORD
BWI
1h 48m
nonstop
Depart: Wed Oct 12 2016 Return: Wed Oct 19 2016 Trip spans 8 days
Major Airline
Major Airline
SEA
ORD
3h 46m
nonstop
ORD
SEA
4h 31m
nonstop
Depart: Wed Sep 28 2016 Return: Wed Oct 19 2016 Trip spans 22 days
American Airlines
American Airlines
BOS
ORD
2h 51m
nonstop
ORD
BOS
2h 18m
nonstop
Depart: Thu Nov 3 2016 Return: Mon Nov 7 2016 Trip spans 5 days
United
United
BOS
ORD
2h 55m
nonstop
ORD
BOS
2h 15m
nonstop
Depart: Sat Oct 8 2016 Return: Wed Oct 12 2016 Trip spans 5 days
Frontier
Frontier
SEA
ORD
4h 01m
nonstop
ORD
SEA
4h 31m
nonstop
Depart: Fri Oct 14 2016 Return: Wed Oct 26 2016 Trip spans 13 days
Major Airline
Major Airline
SEA
ORD
3h 46m
nonstop
ORD
SEA
4h 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.

^ 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

New York
only $127
only $107
Baltimore
$92
Seattle
$63
Minneapolis
$71
Dallas
$87
Philadelphia
$49
Boston
$87
Destination

Chicago
$49
Airlines Airline reviews

395 travelers who booked a flight from Philadelphia to Chicago rated their chosen airlines with an average of 5.8.

Overall
6.0
Boarding
6.2
Crew
6.8
Comfort
5.7
Food
4.6
Entertainment
4.6