Find Cheap Flights to Chicago

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 Billings Logan Intl to Chicago

(Round-trip)
Depart: Sat Oct 7 2017 Return: Wed Oct 11 2017 Trip spans 5 days
Alaska Airlines
Alaska Airlines
BIL
ORD
9h 40m
1 stop
ORD
BIL
17h 33m
2 stops
Depart: Thu Sep 21 2017 Return: Tue Sep 26 2017 Trip spans 6 days
American Airlines
American Airlines
BIL
ORD
15h 39m
2 stops
ORD
BIL
7h 06m
1 stop
Depart: Sat Oct 7 2017 Return: Wed Oct 11 2017 Trip spans 5 days
Delta
Delta
BIL
MDW
7h 30m
1 stop
MDW
BIL
7h 33m
2 stops
Depart: Sun Dec 10 2017 Return: Thu Dec 14 2017 Trip spans 5 days
Alaska Airlines
Alaska Airlines
BIL
ORD
14h 18m
2 stops
ORD
BIL
18h 39m
2 stops
Depart: Tue Nov 14 2017 Return: Sun Nov 19 2017 Trip spans 6 days
Alaska Airlines
Alaska Airlines
BIL
ORD
10h 00m
1 stop
ORD
BIL
13h 31m
2 stops
Depart: Tue Nov 14 2017 Return: Sun Nov 19 2017 Trip spans 6 days
Delta
Delta
BIL
MDW
8h 31m
2 stops
MDW
BIL
4h 34m
1 stop
Depart: Thu Dec 7 2017 Return: Mon Dec 11 2017 Trip spans 5 days
Delta
Delta
BIL
MDW
11h 08m
2 stops
MDW
BIL
6h 45m
1 stop
Depart: Thu Aug 24 2017 Return: Wed Sep 6 2017 Trip spans 14 days
Alaska Airlines
Alaska Airlines
BIL
ORD
15h 00m
2 stops
ORD
BIL
17h 36m
2 stops
Depart: Fri Sep 8 2017 Return: Sun Sep 10 2017 Trip spans 3 days
Delta
Delta
BIL
MDW
7h 36m
1 stop
MDW
BIL
7h 06m
1 stop
Depart: Tue Dec 12 2017 Return: Sun Dec 17 2017 Trip spans 6 days
$1128
Select
Delta
Delta
BIL
MDW
4h 40m
1 stop
MDW
BIL
4h 34m
1 stop
* 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

Billings
$407
Destination

Chicago
only $407
only $633