Find Cheap Flights from Chicago O'Hare International to Ireland

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.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

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

Book cheap flights from Chicago O'Hare International to Ireland

(Round-trip)
Depart: Thu Sep 14 2017 Return: Wed Sep 20 2017 Trip spans 7 days
WOW air
WOW air
ORD
1:40p
ORK
12:35a
10h 55m
1 stop
ORK
7:35a
ORD
6:40p
11h 05m
1 stop
Depart: Sat Sep 2 2017 Return: Fri Sep 15 2017 Trip spans 14 days
British Airways
British Airways
ORD
10:00a
DUB
8:45p
10h 45m
1 stop
DUB
5:55a
ORD
1:55p
8h 00m
nonstop
Depart: Fri Oct 13 2017 Return: Sat Oct 21 2017 Trip spans 9 days
SAS
SAS
ORD
5:05p
DUB
7:35a
14h 30m
1 stop
DUB
7:00a
ORD
8:35p
13h 35m
1 stop
Depart: Tue Sep 26 2017 Return: Tue Oct 3 2017 Trip spans 8 days
Iberia
Iberia
ORD
2:55p
DUB
10:05p
7h 10m
nonstop
DUB
5:55a
ORD
1:55p
8h 00m
nonstop
Depart: Sun Oct 15 2017 Return: Tue Oct 24 2017 Trip spans 10 days
Finnair
Finnair
ORD
2:40p
DUB
10:05p
7h 25m
nonstop
DUB
5:55a
ORD
2:15p
8h 20m
nonstop
Depart: Wed Sep 13 2017 Return: Tue Sep 26 2017 Trip spans 14 days
American Airlines
American Airlines
ORD
10:00a
DUB
8:45p
10h 45m
1 stop
DUB
5:55a
ORD
1:55p
8h 00m
nonstop
Depart: Fri Sep 15 2017 Return: Tue Oct 3 2017 Trip spans 19 days
Major Airline
Major Airline
ORD
10:10a
DUB
3:10a
17h 00m
1 stop
DUB
2:45a
ORD
1:39p
10h 54m
1 stop
Depart: Tue Sep 12 2017 Return: Wed Sep 20 2017 Trip spans 9 days
Delta
Delta
ORD
6:54a
DUB
10:40p
15h 46m
2 stops
DUB
6:50a
ORD
1:33a
18h 43m
1 stop
Depart: Mon May 1 2017 Return: Mon May 22 2017 Trip spans 22 days
Turkish Airlines
Turkish Airlines
ORD
5:40p
DUB
11:50p
30h 10m
1 stop
DUB
6:50a
ORD
7:35p
36h 45m
1 stop
Depart: Wed Oct 18 2017 Return: Tue Oct 24 2017 Trip spans 7 days
Aer Lingus
Aer Lingus
ORD
4:20p
DUB
11:50p
7h 30m
nonstop
DUB
7:30a
ORD
3:55p
8h 25m
nonstop
Depart: Wed May 10 2017 Return: Sat May 27 2017 Trip spans 18 days
Air France
Air France
ORD
7:00a
DUB
10:50p
15h 50m
1 stop
DUB
6:50a
ORD
7:54p
13h 04m
1 stop
Depart: Sun Oct 22 2017 Return: Sat Oct 28 2017 Trip spans 7 days
United
United
ORD
5:10p
ORK
5:10a
12h 00m
1 stop
ORK
7:40a
ORD
3:20p
31h 40m
1 stop
Depart: Tue Jun 6 2017 Return: Tue Jun 13 2017 Trip spans 8 days
Air Canada
Air Canada
ORD
8:25a
DUB
8:35p
12h 10m
1 stop
DUB
6:45a
ORD
5:38p
10h 53m
1 stop
Depart: Sun Jun 11 2017 Return: Wed Jun 14 2017 Trip spans 4 days
KLM
KLM
ORD
8:05a
DUB
11:40p
15h 35m
1 stop
DUB
7:25a
ORD
11:30p
16h 05m
1 stop
Depart: Thu Oct 5 2017 Return: Mon Oct 23 2017 Trip spans 19 days
WOW air
WOW air
ORD
1:40p
DUB
12:05a
10h 25m
1 stop
DUB
7:50a
ORD
6:40p
10h 50m
1 stop
Depart: Wed Oct 11 2017 Return: Thu Oct 19 2017 Trip spans 9 days
WOW air
WOW air
ORD
1:40p
DUB
12:05a
10h 25m
1 stop
DUB
7:40a
ORD
6:40p
11h 00m
1 stop
Depart: Sun Sep 3 2017 Return: Wed Sep 13 2017 Trip spans 11 days
British Airways
British Airways
ORD
10:00a
DUB
8:45p
10h 45m
1 stop
DUB
5:55a
ORD
1:55p
8h 00m
nonstop
Depart: Tue Oct 17 2017 Return: Tue Oct 24 2017 Trip spans 8 days
Iberia
Iberia
ORD
2:40p
DUB
10:05p
7h 25m
nonstop
DUB
5:55a
ORD
2:15p
8h 20m
nonstop
Depart: Sun Oct 1 2017 Return: Sun Oct 15 2017 Trip spans 15 days
Finnair
Finnair
ORD
2:55p
DUB
10:05p
7h 10m
nonstop
DUB
6:25a
ORD
8:45p
14h 20m
1 stop
Depart: Sun Sep 17 2017 Return: Tue Sep 26 2017 Trip spans 10 days
American Airlines
American Airlines
ORD
5:10a
DUB
8:45p
15h 35m
1 stop
DUB
5:55a
ORD
1:55p
8h 00m
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
$439
Destination

Cork
$439
Dublin
$440