Find flights
When to book
FAQs & Tips
Deals

€240 Find cheap flights from Illinois to Ireland

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Illinois to Ireland departing on 3/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags

Search hundreds of travel sites at once for deals on flights to Ireland

In the last 7 days, travellers have searched 46,479,581 times on KAYAK, and here's why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Good to know

Low season

January

High season

September

Cheapest flight

€240
Best time to beat the crowds (10% less expensive on average)
Most popular time to fly and prices are also 17% lower on average.
Flight from Chicago O'Hare Airport to Dublin

FAQs for booking flights from Illinois to Ireland

  • How does KAYAK find such low prices on flights from Illinois to Ireland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Ireland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Ireland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ireland from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Illinois to Ireland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Ireland with an airline and back to Illinois with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Ireland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ireland from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Book cheap flights from Illinois to Ireland

Recent return flight deals

13/11Wed
1 stopTAP AIR PORTUGAL
22h 05mORD-DUB
19/11Tue
1 stopTAP AIR PORTUGAL
28h 35mDUB-ORD
€363
1/12Sun
1 stopTAP AIR PORTUGAL
13h 45mORD-DUB
5/12Thu
1 stopTAP AIR PORTUGAL
17h 05mDUB-ORD
€364
9/1Thu
1 stopIcelandair
9h 45mORD-DUB
14/1Tue
1 stopIcelandair
11h 50mDUB-ORD
€372
17/2Mon
1 stopScandinavian Airlines
34h 30mORD-DUB
23/2Sun
1 stopScandinavian Airlines
35h 40mDUB-ORD
€379
10/1Fri
1 stopIcelandair
9h 45mORD-DUB
16/1Thu
1 stopIcelandair
11h 50mDUB-ORD
€381
17/3Mon
1 stopScandinavian Airlines
34h 30mORD-DUB
31/3Mon
1 stopScandinavian Airlines
27h 05mDUB-ORD
€383
28/12Sat
1 stopUnited Airlines
31h 00mORD-DUB
10/1Fri
1 stopUnited Airlines
30h 01mDUB-ORD
€472
18/11Mon
2 stopsAir Canada
31h 30mSTL-DUB
4/12Wed
2 stopsAir Canada
36h 34mDUB-STL
€479
18/11Mon
2 stopsUnited Airlines
21h 05mSTL-DUB
4/12Wed
1 stopUnited Airlines
12h 06mDUB-STL
€480
28/1Tue
2 stopsAir Canada
13h 35mORD-DUB
5/2Wed
2 stopsAir Canada
15h 38mDUB-ORD
€492

Search by stops

Search by airline

Search by price

Recent one-way flight deals

3/2Mon
2 stops
28h 16mORD-DUB
€240
31/1Fri
3 stops
25h 20mORD-DUB
€242
19/11Tue
2 stops
30h 30mORD-DUB
€243
1/1Wed
1 stopIcelandair
9h 45mORD-DUB
€249
6/1Mon
1 stopIcelandair
9h 45mORD-DUB
€252
10/11Sun
1 stopTAP AIR PORTUGAL
13h 45mORD-DUB
€299
5/1Sun
1 stopTAP AIR PORTUGAL
13h 45mORD-DUB
€305
30/12Mon
1 stopSWISS
16h 45mORD-DUB
€360
2/12Mon
1 stopBritish Airways
13h 00mORD-DUB
€363
18/1Sat
1 stopBritish Airways
11h 15mORD-DUB
€397

Search by stops

Search by airline

Search by price

Last minute flights from Illinois to Ireland

Last minute flight, train and bus deals

5/11Tue
directAer Lingus
7h 20mORD-DUB
12/11Tue
directAer Lingus
8h 30mDUB-ORD
€651
3/11Sun
multi-stopTAP AIR PORTUGAL
13h 45mORD-DUB
12/11Tue
multi-stopTAP AIR PORTUGAL
28h 35mDUB-ORD
€667
5/11Tue
multi-stopAmerican Airlines
13h 00mORD-DUB
12/11Tue
multi-stopAmerican Airlines
11h 40mDUB-ORD
€719
5/11Tue
multi-stop
14h 44mORD-DUB
12/11Tue
multi-stop
27h 35mDUB-ORD
€725
5/11Tue
multi-stopUnited Airlines
12h 09mORD-DUB
12/11Tue
multi-stopUnited Airlines
16h 27mDUB-ORD
€731
3/11Sun
multi-stop
35h 00mORD-DUB
10/11Sun
multi-stop
29h 57mDUB-ORD
€739
3/11Sun
multi-stopDelta
12h 53mMDW-DUB
12/11Tue
multi-stopDelta
12h 24mDUB-MDW
€747
3/11Sun
multi-stopDelta
12h 53mMDW-DUB
12/11Tue
multi-stopDelta
18h 56mDUB-MDW
€758
4/11Mon
multi-stopUnited Airlines
30h 55mORD-DUB
10/11Sun
multi-stopUnited Airlines
19h 17mDUB-ORD
€774
5/11Tue
multi-stopAmerican Airlines
13h 30mORD-SNN
19/11Tue
multi-stopAmerican Airlines
13h 00mSNN-ORD
€794

Search by stops

Search by airline

Search by price

Everything you need to know for your flight to Ireland

Cabin class types available on flights to Illinois

Cabin classes available on flights to Illinois. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.