$390+ Cheap flights from Ireland to Illinois
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/1. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ORD
Oct 31 — Nov 71
Round-trip
1 adult, Economy
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Find cheap flights from Ireland to Illinois with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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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 October 1, 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 October 1, 2026.
This deal was found by Cheapflights users on 9/29. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1711:30 am -
1 stop11h 50m
Tue 12/16:30 pm -
1 stop9h 45m
Deal found 9/29![Icelandair logo]()
$398
This deal was found by Cheapflights users on 9/29. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1711:30 am -
1 stop11h 50m
Mon 11/306:30 pm -
1 stop9h 45m
Deal found 9/29![Icelandair logo]()
$399
This deal was found by Cheapflights users on 10/1. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1211:30 am -
1 stop11h 50m
Sun 11/156:30 pm -
1 stop9h 45m
Deal found 10/1![Icelandair logo]()
$400
This Mytrip deal was found by Cheapflights users on 10/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1311:30 am -
1 stop11h 50m
Sun 11/296:30 pm -
1 stop9h 45m
Deal found 10/1![Icelandair logo]()
$437
This Mytrip deal was found by Cheapflights users on 9/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1311:30 am -
1 stop11h 50m
Tue 11/176:30 pm -
1 stop9h 45m
Deal found 9/30![Icelandair logo]()
$442
This Mytrip deal was found by Cheapflights users on 9/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2011:30 am -
1 stop11h 50m
Tue 11/246:30 pm -
1 stop9h 45m
Deal found 9/29![Icelandair logo]()
$445
This Mytrip deal was found by Cheapflights users on 9/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/411:30 am -
1 stop11h 50m
Mon 12/76:30 pm -
1 stop9h 45m
Deal found 9/29![Icelandair logo]()
$446
This Mytrip deal was found by Cheapflights users on 9/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1111:30 am -
1 stop11h 50m
Tue 11/246:30 pm -
1 stop9h 45m
Deal found 9/30![Icelandair logo]()
$447
This Mytrip deal was found by Cheapflights users on 9/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1011:30 am -
1 stop11h 50m
Tue 12/156:30 pm -
1 stop9h 45m
Deal found 9/27![Icelandair logo]()
$448
This oojo deal was found by Cheapflights users on 10/1. 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.
Tue 12/1511:30 am -
1 stop11h 50m
Mon 1/46:30 pm -
1 stop9h 45m
Deal found 10/1![Icelandair logo]()
$454
This Delta deal was found by Cheapflights users on 9/29. 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 10/196:15 am -
1 stop14h 15m
Sun 10/257:25 pm -
1 stop14h 20m
Deal found 9/29![Delta logo]()
$561
This Delta deal was found by Cheapflights users on 9/27. 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 11/65:40 am -
2 stops22h 03m
Wed 11/1110:30 am -
2 stops18h 10m
Deal found 9/27![Delta logo]()
$571
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 October 1, 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 October 1, 2026.
This Lufthansa deal was found by Cheapflights users on 9/27. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:10 am -
1 stop14h 00m
Thu 11/126:30 pm -
Nonstop7h 40m
Deal found 9/27![Lufthansa logo]()
$523
This United Airlines deal was found by Cheapflights users on 9/28. 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.
Thu 11/510:40 am -
Nonstop8h 40m
Thu 11/126:30 pm -
Nonstop7h 40m
Deal found 9/28![United Airlines logo]()
$544
This KLM deal was found by Cheapflights users on 9/27. 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 10/295:45 am -
1 stop14h 40m
Fri 11/66:25 pm -
1 stop13h 45m
Deal found 9/27![Multiple Airlines logo]()
$547
This Delta deal was found by Cheapflights users on 9/29. 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 11/208:50 am -
2 stops19h 46m
Tue 11/246:25 pm -
1 stop14h 05m
Deal found 9/29![Delta logo]()
$552
This Scandinavian Airlines deal was found by Cheapflights users on 9/28. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1210:55 am -
2 stops35h 50m
Sun 11/157:10 pm -
2 stops33h 35m
Deal found 9/28![Scandinavian Airlines logo]()
$561
This Aer Lingus deal was found by Cheapflights users on 9/29. 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 Aer Lingus is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2711:30 am -
Nonstop8h 40m
Wed 12/23:55 pm -
Nonstop7h 20m
Deal found 9/29![Aer Lingus logo]()
$567
This TravelUp deal was found by Cheapflights users on 9/27. 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.
Wed 11/118:05 pm -
2 stops25h 00m
Wed 11/188:30 pm -
1 stop14h 15m
Deal found 9/27![British Airways logo]()
$635
This American Airlines deal was found by Cheapflights users on 9/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/132:00 pm -
2 stops16h 01m
Fri 11/207:10 am -
1 stop17h 00m
Deal found 9/29![American Airlines logo]()
$760
This Lufthansa deal was found by Cheapflights users on 9/27. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/285:10 am -
1 stop16h 10m
Fri 11/66:30 pm -
Nonstop7h 40m
Deal found 9/27![Lufthansa logo]()
$551
This Delta deal was found by Cheapflights users on 9/28. 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 11/55:45 am -
2 stops20h 45m
Thu 11/1210:35 am -
2 stops16h 25m
Deal found 9/28![Delta logo]()
$553
This United Airlines deal was found by Cheapflights users on 9/28. 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.
Tue 1/59:00 am -
1 stop30h 08m
Tue 1/1912:40 pm -
1 stop12h 50m
Deal found 9/28![United Airlines logo]()
$567
This lastminute.com deal was found by Cheapflights users on 9/27. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:50 am -
1 stop11h 55m
Wed 11/188:30 pm -
1 stop14h 15m
Deal found 9/27![Multiple Airlines logo]()
$587
This Delta deal was found by Cheapflights users on 9/27. 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 10/296:00 am -
2 stops19h 30m
Fri 11/66:08 pm -
2 stops16h 12m
Deal found 9/27![Delta logo]()
$565
This United Airlines deal was found by Cheapflights users on 9/29. 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 10/2810:40 am -
Nonstop8h 40m
Wed 11/48:50 am -
1 stop19h 30m
Deal found 9/29![United Airlines logo]()
$574
This British Airways deal was found by Cheapflights users on 9/30. 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.
Thu 11/57:40 am -
1 stop13h 50m
Mon 11/96:05 pm -
2 stops20h 55m
Deal found 9/30![British Airways logo]()
$673
This Delta deal was found by Cheapflights users on 9/27. 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 11/65:40 am -
2 stops21h 26m
Wed 11/114:25 pm -
1 stop12h 15m
Deal found 9/27![Delta logo]()
$571
This KLM deal was found by Cheapflights users on 9/29. 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 10/156:15 am -
1 stop14h 00m
Mon 10/196:00 pm -
2 stops14h 40m
Deal found 9/29![Multiple Airlines logo]()
$638
This British Airways deal was found by Cheapflights users on 10/1. 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.
Fri 10/308:05 pm -
1 stop25h 20m
Thu 12/108:30 pm -
1 stop16h 55m
Deal found 10/1![British Airways logo]()
$686
This Gotogate deal was found by Cheapflights users on 9/30. 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.
Thu 11/197:50 am -
1 stop16h 55m
Wed 11/255:10 pm -
1 stop20h 15m
Deal found 9/30![Multiple Airlines logo]()
$663
This British Airways deal was found by Cheapflights users on 9/27. 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.
Wed 11/254:05 pm -
2 stops28h 50m
Sun 11/299:50 pm -
1 stop19h 35m
Deal found 9/27![British Airways logo]()
$706
This SmartFares deal was found by Cheapflights users on 9/30. 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 11/57:50 am -
1 stop13h 40m
Mon 11/98:30 pm -
1 stop14h 15m
Deal found 9/30![Multiple Airlines logo]()
$669
This Delta deal was found by Cheapflights users on 9/30. 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 11/55:40 am -
2 stops21h 26m
Mon 11/96:00 pm -
2 stops16h 40m
Deal found 9/30![Delta logo]()
$678
This British Airways deal was found by Cheapflights users on 9/27. 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.
Sat 1/97:50 am -
2 stops20h 40m
Mon 1/113:17 pm -
2 stops22h 08m
Deal found 9/27![British Airways logo]()
$719
This Delta deal was found by Cheapflights users on 9/29. 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 10/1910:50 am -
2 stops16h 41m
Sun 10/255:29 pm -
2 stops16h 16m
Deal found 9/29![Delta logo]()
$726
This British Airways deal was found by Cheapflights users on 10/1. 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.
Sun 11/158:05 pm -
2 stops24h 50m
Sun 11/226:10 pm -
2 stops16h 35m
Deal found 10/1![British Airways logo]()
$751
Last-minute flights from Ireland to IllinoisDiscover last-minute flight deals from Ireland to Illinois. Data last updated October 1, 2026 and is based on user searches.
Discover last-minute flight deals from Ireland to Illinois. Data last updated October 1, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/29. 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 10/196:15 am -
1 stop14h 15m
Sun 10/257:25 pm -
1 stop14h 20m
Deal found 9/29![Delta logo]()
$561
This Ticket deal was found by Cheapflights users on 9/27. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/25:10 am -
1 stop20h 55m
Mon 11/96:30 pm -
Nonstop7h 40m
Deal found 9/27![Lufthansa logo]()
$459
This Delta deal was found by Cheapflights users on 9/27. 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 11/65:40 am -
2 stops22h 03m
Wed 11/1110:30 am -
2 stops18h 10m
Deal found 9/27![Delta logo]()
$571
This Mytrip deal was found by Cheapflights users on 9/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1111:30 am -
1 stop11h 50m
Tue 11/246:30 pm -
1 stop9h 45m
Deal found 9/30![Icelandair logo]()
$447
This deal was found by Cheapflights users on 10/1. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1211:30 am -
1 stop11h 50m
Sun 11/156:30 pm -
1 stop9h 45m
Deal found 10/1![Icelandair logo]()
$400
This Mytrip deal was found by Cheapflights users on 10/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1311:30 am -
1 stop11h 50m
Sun 11/296:30 pm -
1 stop9h 45m
Deal found 10/1![Icelandair logo]()
$437
This Mytrip deal was found by Cheapflights users on 9/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1311:30 am -
1 stop11h 50m
Tue 11/176:30 pm -
1 stop9h 45m
Deal found 9/30![Icelandair logo]()
$442
This deal was found by Cheapflights users on 9/29. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1711:30 am -
1 stop11h 50m
Tue 12/16:30 pm -
1 stop9h 45m
Deal found 9/29![Icelandair logo]()
$398
This deal was found by Cheapflights users on 9/29. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1711:30 am -
1 stop11h 50m
Mon 11/306:30 pm -
1 stop9h 45m
Deal found 9/29![Icelandair logo]()
$399
This Flysmarter deal was found by Cheapflights users on 9/27. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1911:30 am -
1 stop11h 50m
Mon 11/306:30 pm -
1 stop9h 45m
Deal found 9/27![Icelandair logo]()
$458
This Mytrip deal was found by Cheapflights users on 9/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2011:30 am -
1 stop11h 50m
Tue 11/246:30 pm -
1 stop9h 45m
Deal found 9/29![Icelandair logo]()
$445
This Booking.com deal was found by Cheapflights users on 9/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2011:30 am -
1 stop11h 50m
Sun 11/296:30 pm -
1 stop9h 45m
Deal found 9/27![Icelandair logo]()
$462
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 October 1, 2026.
Search for one-way flight options from Ireland to Illinois. Find affordable one-way fares based on user searches. Data last updated October 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/29. 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 12/12:35 pm -
3 stops56h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Multiple Airlines logo]()
$390
This Kiwi.com deal was found by Cheapflights users on 9/30. 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 11/108:35 am -
3 stops36h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Multiple Airlines logo]()
$433
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 11/47:45 am -
3 stops31h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Multiple Airlines logo]()
$440
This Booking.com deal was found by Cheapflights users on 10/1. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/74:15 am -
1 stop17h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![TAP AIR PORTUGAL logo]()
$443
This Delta deal was found by Cheapflights users on 10/1. 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 12/289:55 am -
1 stop17h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Delta logo]()
$444
This lastminute.co.il deal was found by Cheapflights users on 10/1. 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 lastminute.co.il is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/34:55 pm -
1 stop28h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![TAP AIR PORTUGAL logo]()
$445
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 3/308:10 pm -
3 stops27h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Multiple Airlines logo]()
$446
This Thrive Travel deal was found by Cheapflights users on 10/1. 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 Thrive Travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3011:35 am -
Nonstop8h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Iberia logo]()
$447
This Kiwi.com deal was found by Cheapflights users on 9/30. 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.
Thu 3/188:20 am -
2 stops37h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Multiple Airlines logo]()
$448
This Kiwi.com deal was found by Cheapflights users on 9/28. 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 12/308:20 am -
2 stops39h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Multiple Airlines logo]()
$453
This Kiwi.com deal was found by Cheapflights users on 9/27. 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.
Sun 12/276:20 pm -
3 stops29h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Multiple Airlines logo]()
$453
This Thrive Travel deal was found by Cheapflights users on 10/1. 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 Thrive Travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/811:30 am -
Nonstop8h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![British Airways logo]()
$454
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 October 1, 2026.
Round-trip from | $398 |
|---|---|
One-way from | $390 (Kiwi.com) |
Popular in | August |
Cheapest in | November |
Average price | $744 |
Good round-trip deal | $534 or less |
Good one-way deal | $568 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 7,457,451 searches. Data last updated October 1, 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 Cork - ORD Chicago O'Hare Intl
ORKORD
Cork
Tue 11/10
8:35 am-3:30 pm
3 stops36h 55m
Chicago O'Hare Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$433
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Sat 3/27
9:40 am-7:42 pm
1 stop15h 02m
Chicago O'Hare Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$444
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Mon 12/28
9:55 am-9:39 pm
1 stop17h 44m
Chicago O'Hare Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$444
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Sun 3/28
3:00 pm-9:33 am
1 stop24h 33m
Chicago O'Hare Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$444
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Tue 11/3
4:55 pm-3:30 pm
1 stop28h 35m
Chicago O'Hare Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$445
ShannonChicago
SNN Shannon - ORD Chicago O'Hare Intl
SNNORD
Shannon
Thu 3/18
8:20 am-4:30 pm
2 stops37h 10m
Chicago O'Hare Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$448
ShannonChicago
SNN Shannon - ORD Chicago O'Hare Intl
SNNORD
Shannon
Sun 12/27
6:20 pm-5:20 pm
3 stops29h 00m
Chicago O'Hare Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$453
Quickest round-trip
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Mon 12/14
11:30 am-2:10 pm
Nonstop8h 40m
Chicago O'Hare Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$460
ShannonChicago
SNN Shannon - ORD Chicago O'Hare Intl
SNNORD
Shannon
Tue 12/22
7:50 am-1:45 pm
1 stop11h 55m
Chicago O'Hare Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$469
ShannonChicago
SNN Shannon - ORD Chicago O'Hare Intl
SNNORD
Shannon
Mon 12/7
8:05 pm-1:45 pm
1 stop23h 40m
Chicago O'Hare Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$470
Showing 1-10 of 54 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.
DUB-ORD
ORK-ORD
SNN-ORD
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
DUB-ORD
ORK-ORD
SNN-ORD
What is the cheapest month to book a flight from Ireland to Illinois?
Currently, November is the cheapest month in which you can book a flight from Ireland to Illinois (average of $509). Flying from Ireland to Illinois in July is currently the most expensive (average of $836). 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 October 1, 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 October 1, 2026.
The most flights from IE0 to USIL are scheduled on a Wednesday (13 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (11 on average).
How far ahead should I book a flight from Ireland to Illinois?
The best time to book flights from Ireland to Illinois is 71 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.
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 October 1, 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.
Comfort
7.3
Entertainment
7.1
Food
6.7
Overall
7.4
Crew
8.1
Boarding
7.7
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Comfort
7.3
Entertainment
7.1
Food
6.7
Overall
7.4
Crew
8.1
Boarding
7.7
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Comfort
7.3
Entertainment
7.1
Food
6.7
Overall
7.4
Crew
8.1
Boarding
7.7
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
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.
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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 October 1, 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 7,457,451 searches. Data last updated October 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$148 | Average$656 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$479 | Average$795 | FlexibilityNo cancel fee | On-time69% |