$299+ Cheap flights from Ireland to Illinois
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/15. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ORD
Jun 6 — Jun 131
Round-trip
1 adult, Economy
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Find cheap flights from Ireland to Illinois with Cheapflights
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Cheapest flights from Ireland to IllinoisExplore the most affordable flight options available from Ireland to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 7, 2026.
Explore the most affordable flight options available from Ireland to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 7, 2026.
This Air France deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/186:15 am
ORK
- ORD
1 stop14h 00m
Multiple Airlines
Tue 6/235:10 pm
ORD
- ORK
1 stop15h 30m
Multiple Airlines
Deal found 5/6![Multiple Airlines logo]()
$581
This Air France deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/236:15 am
ORK
- ORD
1 stop14h 00m
Multiple Airlines
Thu 5/288:20 pm
ORD
- ORK
1 stop12h 20m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$583
This Air France deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/226:15 am
ORK
- ORD
1 stop14h 15m
Multiple Airlines
Mon 6/295:10 pm
ORD
- ORK
1 stop15h 30m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$584
This KLM deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/11:05 pm
SNN
- ORD
1 stop14h 31m
KLM
Wed 6/106:05 am
ORD
- SNN
1 stop23h 05m
KLM
Deal found 5/6![KLM logo]()
$599
This Delta deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/261:05 pm
SNN
- ORD
1 stop14h 31m
Delta
Tue 6/26:07 am
ORD
- SNN
1 stop23h 03m
Delta
Deal found 5/5![Delta logo]()
$600
This Delta deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/231:05 pm
SNN
- ORD
1 stop14h 43m
Delta
Mon 6/296:00 pm
ORD
- SNN
1 stop11h 10m
Delta
Deal found 5/4![Delta logo]()
$601
This KLM deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1510:00 am
DUB
- MDW
1 stop14h 33m
KLM
Mon 5/251:22 pm
MDW
- DUB
1 stop13h 53m
KLM
Deal found 5/4![KLM logo]()
$611
This TravelUp deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:30 am
DUB
- ORD
1 stop12h 00m
British Airways
Sat 11/75:10 pm
ORD
- DUB
1 stop10h 40m
British Airways
Deal found 5/5![British Airways logo]()
$612
This lol.travel deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/219:30 am
DUB
- ORD
Nonstop8h 00m
Finnair
Sat 5/3011:50 am
ORD
- DUB
1 stop15h 55m
Finnair
Deal found 5/4![Finnair logo]()
$614
This SmartFares deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/2111:30 am
DUB
- ORD
1 stop15h 59m
JetBlue
Thu 7/28:20 pm
ORD
- DUB
1 stop30h 00m
JetBlue
Deal found 5/5![JetBlue logo]()
$616
This lol.travel deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/189:30 am
DUB
- ORD
Nonstop7h 59m
Finnair
Thu 6/2510:20 pm
ORD
- DUB
Nonstop7h 30m
Finnair
Deal found 5/4![Finnair logo]()
$618
This lol.travel deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/89:30 am
DUB
- ORD
Nonstop7h 59m
Finnair
Sun 6/1410:20 pm
ORD
- DUB
Nonstop7h 30m
Finnair
Deal found 5/5![Finnair logo]()
$619
Best flights from Ireland to IllinoisDiscover carefully curated flight deals from Ireland to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 7, 2026.
Discover carefully curated flight deals from Ireland to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 7, 2026.
This KLM deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/226:15 am
ORK
- ORD
1 stop14h 15m
KLM
Mon 6/295:10 pm
ORD
- ORK
1 stop15h 30m
KLM
Deal found 5/7![KLM logo]()
$581
This Air France deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/226:15 am
ORK
- ORD
1 stop14h 15m
Multiple Airlines
Mon 6/295:10 pm
ORD
- ORK
1 stop15h 30m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$584
This Delta deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/186:15 am
ORK
- ORD
1 stop14h 00m
Delta
Tue 6/232:07 pm
ORD
- ORK
2 stops18h 33m
Delta
Deal found 5/6![Delta logo]()
$659
This Finnair deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/39:30 am
DUB
- ORD
Nonstop8h 00m
Finnair
Mon 8/1010:30 pm
ORD
- DUB
Nonstop7h 20m
Finnair
Deal found 5/7![Finnair logo]()
$846
This United Airlines deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/229:30 am
SNN
- ORD
Nonstop8h 20m
United Airlines
Thu 5/286:05 pm
ORD
- SNN
Nonstop7h 25m
United Airlines
Deal found 5/7![United Airlines logo]()
$851
This British Airways deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/237:30 am
SNN
- ORD
2 stops19h 30m
British Airways
Mon 6/293:15 pm
ORD
- SNN
2 stops18h 55m
British Airways
Deal found 5/7![British Airways logo]()
$870
This KLM deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/186:15 am
ORK
- ORD
1 stop14h 00m
KLM
Thu 6/255:10 pm
ORD
- ORK
1 stop15h 30m
KLM
Deal found 5/4![KLM logo]()
$583
This Gotogate deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/286:00 am
DUB
- STL
2 stops21h 26m
Lufthansa
Thu 8/61:13 pm
STL
- DUB
1 stop14h 32m
Lufthansa
Deal found 5/5![Lufthansa logo]()
$1,239
This Finnair deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/239:30 am
DUB
- ORD
Nonstop7h 59m
Multiple Airlines
Mon 6/2910:30 pm
ORD
- DUB
1 stop14h 10m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$635
This Delta deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/226:15 am
ORK
- ORD
1 stop14h 15m
Delta
Mon 6/292:07 pm
ORD
- ORK
2 stops18h 33m
Delta
Deal found 5/7![Delta logo]()
$662
This Delta deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/236:15 am
ORK
- MDW
2 stops17h 41m
Delta
Thu 5/289:23 am
MDW
- ORK
2 stops18h 57m
Delta
Deal found 5/4![Delta logo]()
$670
This KLM deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/315:10 pm
ORK
- ORD
1 stop27h 20m
KLM
Fri 7/315:10 pm
ORD
- ORK
1 stop17h 10m
KLM
Deal found 5/4![KLM logo]()
$688
This KLM deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/111:05 pm
SNN
- ORD
1 stop14h 43m
Multiple Airlines
Fri 7/39:48 am
ORD
- SNN
2 stops19h 22m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$701
This Delta deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/98:55 am
DUB
- ORD
1 stop11h 20m
Delta
Sun 8/95:10 pm
ORD
- DUB
1 stop16h 15m
Delta
Deal found 5/4![Delta logo]()
$685
This KLM deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/2512:00 pm
DUB
- MDW
1 stop12h 18m
KLM
Sat 7/41:49 pm
MDW
- DUB
1 stop12h 06m
KLM
Deal found 5/3![KLM logo]()
$703
This United Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/229:30 am
SNN
- ORD
Nonstop8h 20m
United Airlines
Tue 5/261:18 pm
ORD
- SNN
2 stops14h 57m
United Airlines
Deal found 5/3![United Airlines logo]()
$853
This Finnair deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/29:30 am
DUB
- ORD
Nonstop8h 00m
Finnair
Sat 7/1112:05 pm
ORD
- DUB
1 stop15h 40m
Finnair
Deal found 5/3![Finnair logo]()
$869
This Delta deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/249:15 am
DUB
- ORD
1 stop11h 55m
Delta
Sat 7/45:22 pm
ORD
- DUB
2 stops16h 03m
Delta
Deal found 5/3![Delta logo]()
$691
This United Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/229:30 am
SNN
- ORD
Nonstop8h 20m
United Airlines
Sun 5/316:05 pm
ORD
- SNN
Nonstop7h 25m
United Airlines
Deal found 5/3![United Airlines logo]()
$854
This Delta deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1911:10 am
DUB
- ORD
2 stops17h 32m
Delta
Sat 7/181:00 pm
ORD
- DUB
1 stop14h 15m
Delta
Deal found 5/5![Delta logo]()
$692
This United Airlines deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3011:35 am
DUB
- ORD
Nonstop8h 05m
United Airlines
Sun 10/48:20 pm
ORD
- DUB
Nonstop7h 25m
United Airlines
Deal found 5/6![United Airlines logo]()
$868
This KLM deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/211:05 pm
SNN
- MDW
2 stops33h 10m
Multiple Airlines
Thu 7/3012:41 pm
MDW
- SNN
2 stops16h 29m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$918
This Delta deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/3011:10 am
DUB
- ORD
2 stops16h 10m
Delta
Fri 6/53:50 pm
ORD
- DUB
1 stop12h 55m
Delta
Deal found 5/4![Delta logo]()
$693
This United Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/229:30 am
SNN
- ORD
Nonstop8h 20m
United Airlines
Fri 6/56:05 pm
ORD
- SNN
Nonstop7h 25m
United Airlines
Deal found 5/3![United Airlines logo]()
$910
This KLM deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1810:00 am
DUB
- MDW
1 stop14h 31m
KLM
Sun 8/3012:46 pm
MDW
- DUB
1 stop13h 59m
KLM
Deal found 5/4![KLM logo]()
$921
This Delta deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/111:05 pm
SNN
- ORD
1 stop29h 15m
Delta
Fri 7/36:00 pm
ORD
- SNN
1 stop11h 10m
Delta
Deal found 5/4![Delta logo]()
$701
This KLM deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/310:00 am
DUB
- MDW
1 stop14h 33m
KLM
Mon 8/1012:46 pm
MDW
- DUB
1 stop13h 59m
KLM
Deal found 5/7![KLM logo]()
$921
This KLM deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/71:05 pm
SNN
- MDW
2 stops33h 11m
Multiple Airlines
Fri 6/1212:45 pm
MDW
- SNN
2 stops16h 25m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$1,062
This Delta deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/46:15 am
ORK
- ORD
1 stop14h 00m
Delta
Mon 6/83:15 pm
ORD
- ORK
2 stops17h 25m
Delta
Deal found 5/3![Delta logo]()
$727
This KLM deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/210:00 am
DUB
- MDW
1 stop14h 31m
KLM
Sat 7/111:49 pm
MDW
- DUB
1 stop12h 06m
KLM
Deal found 5/7![KLM logo]()
$922
Last-minute flights from Ireland to IllinoisDiscover last-minute flight deals from Ireland to Illinois. Data last updated May 7, 2026 and is based on user searches.
Discover last-minute flight deals from Ireland to Illinois. Data last updated May 7, 2026 and is based on user searches.
This lol.travel deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/99:30 am
DUB
- ORD
Nonstop8h 00m
Finnair
Sat 5/3011:50 am
ORD
- DUB
1 stop15h 55m
Finnair
Deal found 5/2![Finnair logo]()
$615
This KLM deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1510:00 am
DUB
- MDW
1 stop14h 33m
KLM
Mon 5/251:22 pm
MDW
- DUB
1 stop13h 53m
KLM
Deal found 5/4![KLM logo]()
$611
This lol.travel deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/219:30 am
DUB
- ORD
Nonstop8h 00m
Finnair
Sat 5/3011:50 am
ORD
- DUB
1 stop15h 55m
Finnair
Deal found 5/4![Finnair logo]()
$614
This Air France deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/236:15 am
ORK
- ORD
1 stop14h 00m
Multiple Airlines
Thu 5/288:20 pm
ORD
- ORK
1 stop12h 20m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$583
This Delta deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/261:05 pm
SNN
- ORD
1 stop14h 31m
Delta
Tue 6/26:07 am
ORD
- SNN
1 stop23h 03m
Delta
Deal found 5/5![Delta logo]()
$600
This KLM deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/11:05 pm
SNN
- ORD
1 stop14h 31m
KLM
Wed 6/106:05 am
ORD
- SNN
1 stop23h 05m
KLM
Deal found 5/6![KLM logo]()
$599
This lol.travel deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/89:30 am
DUB
- ORD
Nonstop7h 59m
Finnair
Sun 6/1410:20 pm
ORD
- DUB
Nonstop7h 30m
Finnair
Deal found 5/5![Finnair logo]()
$619
This Air France deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/186:15 am
ORK
- ORD
1 stop14h 00m
Multiple Airlines
Tue 6/235:10 pm
ORD
- ORK
1 stop15h 30m
Multiple Airlines
Deal found 5/6![Multiple Airlines logo]()
$581
This lol.travel deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/189:30 am
DUB
- ORD
Nonstop7h 59m
Finnair
Thu 6/2510:20 pm
ORD
- DUB
Nonstop7h 30m
Finnair
Deal found 5/4![Finnair logo]()
$618
This SmartFares deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/2111:30 am
DUB
- ORD
1 stop15h 59m
JetBlue
Thu 7/28:20 pm
ORD
- DUB
1 stop30h 00m
JetBlue
Deal found 5/5![JetBlue logo]()
$616
This Air France deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/226:15 am
ORK
- ORD
1 stop14h 15m
Multiple Airlines
Mon 6/295:10 pm
ORD
- ORK
1 stop15h 30m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$584
This Delta deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/231:05 pm
SNN
- ORD
1 stop14h 43m
Delta
Mon 6/296:00 pm
ORD
- SNN
1 stop11h 10m
Delta
Deal found 5/4![Delta logo]()
$601
One-way flights from Ireland to IllinoisSearch for one-way flight options from Ireland to Illinois. Find affordable one-way fares based on user searches. Data last updated May 7, 2026.
Search for one-way flight options from Ireland to Illinois. Find affordable one-way fares based on user searches. Data last updated May 7, 2026.
This SmartFares deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1511:30 am
DUB
- ORD
1 stop16h 25m
JetBlue
Deal found 5/7![JetBlue logo]()
$299
This SmartFares deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/211:30 am
DUB
- ORD
1 stop27h 15m
JetBlue
Deal found 5/7![JetBlue logo]()
$303
This JetBlue deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1911:30 am
DUB
- ORD
1 stop16h 00m
JetBlue
Deal found 5/6![JetBlue logo]()
$324
This CheapOair deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/3011:30 am
DUB
- ORD
1 stop27h 15m
JetBlue
Deal found 5/7![JetBlue logo]()
$334
This oojo deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/211:30 am
DUB
- ORD
1 stop11h 50m
Icelandair
Deal found 5/5![Icelandair logo]()
$335
This Justfly.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/311:30 am
DUB
- ORD
1 stop11h 50m
Icelandair
Deal found 5/5![Icelandair logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/89:40 am
DUB
- MDW
2 stops29h 55m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$359
This Kiwi.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:20 pm
DUB
- ORD
2 stops29h 30m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$371
This Kiwi.com deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/2310:10 am
DUB
- MDW
2 stops29h 30m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$371
This Kiwi.com deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:20 pm
DUB
- ORD
2 stops29h 30m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$378
This Kiwi.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:20 pm
DUB
- ORD
2 stops29h 30m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$381
This Kiwi.com deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/201:15 pm
DUB
- MDW
1 stop26h 25m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$398
Find flight deals from Ireland to Illinois
Keep the following information in mind while searching for Ireland to Illinois flight deals. Data was last updated May 7, 2026.
Round-trip from | $581 (Air France) |
|---|---|
One-way from | $299 (SmartFares) |
Popular in | August |
Cheapest in | September |
Average price | $650 |
Good round-trip deal | $783 or less |
Good one-way deal | $625 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Ireland to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 7, 2026.
Use the filters below to find and compare flights from Ireland to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
CorkChicago
ORK - ORD
ORKORD
Cork
Mon 6/22
6:15 am-2:30 pm
1 stop14h 15m
Chicago O'Hare Intl
Mon 6/29
5:10 pm-2:40 pm
1 stop15h 30m
$581
CorkChicago
ORK - ORD
ORKORD
Cork
Thu 6/18
6:15 am-2:15 pm
1 stop14h 00m
Chicago O'Hare Intl
Thu 6/25
5:10 pm-2:40 pm
1 stop15h 30m
$583
CorkChicago
ORK - ORD
ORKORD
Cork
Mon 6/22
6:15 am-2:30 pm
1 stop14h 15m
Chicago O'Hare Intl
Mon 6/29
5:10 pm-2:40 pm
1 stop15h 30m
$584
DublinChicago
DUB - ORD
DUBORD
Dublin
Tue 6/23
9:30 am-11:29 am
Nonstop7h 59m
Chicago O'Hare Intl
Mon 6/29
10:30 pm-6:40 pm
1 stop14h 10m
$635
CorkChicago
ORK - ORD
ORKORD
Cork
Thu 6/18
6:15 am-2:15 pm
1 stop14h 00m
Chicago O'Hare Intl
Tue 6/23
2:07 pm-2:40 pm
2 stops18h 33m
$659
CorkChicago
ORK - ORD
ORKORD
Cork
Mon 6/22
6:15 am-2:30 pm
1 stop14h 15m
Chicago O'Hare Intl
Mon 6/29
2:07 pm-2:40 pm
2 stops18h 33m
$662
CorkChicago
ORK - MDW
ORKMDW
Cork
Sat 5/23
6:15 am-5:56 pm
2 stops17h 41m
Chicago Midway
Thu 5/28
9:23 am-10:20 am
2 stops18h 57m
$670
DublinChicago
DUB - ORD
DUBORD
Dublin
Tue 6/9
8:55 am-2:15 pm
1 stop11h 20m
Chicago O'Hare Intl
Sun 8/9
5:10 pm-3:25 pm
1 stop16h 15m
$685
CorkChicago
ORK - ORD
ORKORD
Cork
Sun 5/31
5:10 pm-2:30 pm
1 stop27h 20m
Chicago O'Hare Intl
Fri 7/31
5:10 pm-4:20 pm
1 stop17h 10m
$688
DublinChicago
DUB - ORD
DUBORD
Dublin
Wed 6/24
9:15 am-3:10 pm
1 stop11h 55m
Chicago O'Hare Intl
Sat 7/4
5:22 pm-3:25 pm
2 stops16h 03m
$691
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Ireland to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Ireland with our price prediction graph.
ORK-ORD
SNN-ORD
DUB-MDW
DUB-ORD
DUB-STL
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Ireland to Illinois
IE0-USIL
ORK-ORD
SNN-ORD
DUB-MDW
DUB-ORD
How far ahead should I book a flight from Ireland to Illinois?
The best time to book flights from Ireland to Illinois is 84 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Ireland to Illinois?
Currently, September is the cheapest month in which you can book a flight from Ireland to Illinois (average of $272). Flying from Ireland to Illinois in July is currently the most expensive (average of $524). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from IE to IL?
Find hourly flight availability from Ireland to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 7, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ireland to Illinois as you normally would.
Weekly flight availability from Ireland to Illinois
Explore weekly flight availability from Ireland to Illinois. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 7, 2026.
The most flights from IE0 to USIL are scheduled on a Thursday (14 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (13 on average).
Reviews of airlines servicing Illinois
Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated May 7, 2026.
Peruse reviews from past customers who have flown with United Airlines and Aer Lingus from Ireland to Illinois to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.7
Crew
8.1
Food
6.6
Overall
7.4
Comfort
7.3
Entertainment
7.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Boarding
7.7
Crew
8.1
Food
6.6
Overall
7.4
Comfort
7.3
Entertainment
7.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Boarding
7.7
Crew
8.1
Food
6.6
Overall
7.4
Comfort
7.3
Entertainment
7.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Related info for your journey
Find useful and relevant information for your journey from Ireland to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Ireland to Illinois
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Illinois by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ireland to Illinois by cabin class
Find flights from Ireland to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ireland and Illinois flights
Browse other Ireland and Illinois flight options. Last updated on May 7, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Illinois
Find the right flight back to Ireland after your stay in Illinois
Ireland to Illinois flights
Consider these flights traveling from Ireland to Illinois.
Top 2 airlines flying from Ireland to Illinois
Discover the top 2 airlines that operate flights from Ireland to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$463 | Average$657 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$479 | Average$680 | FlexibilityNo cancel fee | On-time69% |