$396+ Cheap flights from Athens (ATH) 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 12/20. Fares are subject to change and may not be available on all flights or dates of travel.
ATH — ORD
Nov 24 — Dec 11
Round-trip
1 adult, Economy
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Find cheap flights from Athens 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 Athens to IllinoisExplore the most affordable flight options available from Athens to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.
Explore the most affordable flight options available from Athens to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.
This Air Canada deal was found by Cheapflights users on 10/21. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/66:45 am -
2 stops16h 53m
Sun 12/131:55 pm -
1 stop13h 05m
Deal found 10/21![Multiple Airlines logo]()
$764
This deal was found by Cheapflights users on 10/22. 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 11/1012:25 pm -
1 stop19h 36m
Thu 3/119:00 am -
1 stop17h 05m
Deal found 10/22![United Airlines logo]()
$765
This Air Canada deal was found by Cheapflights users on 10/21. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/191:00 pm -
2 stops32h 54m
Tue 12/84:30 pm -
1 stop34h 30m
Deal found 10/21![Air Canada logo]()
$766
This United Airlines deal was found by Cheapflights users on 10/21. 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 11/132:30 pm -
1 stop13h 35m
Mon 11/309:50 pm -
1 stop19h 40m
Deal found 10/21![United Airlines logo]()
$767
This United Airlines deal was found by Cheapflights users on 10/21. 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 11/116:45 am -
1 stop21h 20m
Tue 12/16:10 pm -
1 stop19h 10m
Deal found 10/21![United Airlines logo]()
$768
This Air Canada deal was found by Cheapflights users on 10/22. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:45 am -
2 stops21h 13m
Wed 3/311:40 pm -
1 stop13h 30m
Deal found 10/22![Air Canada logo]()
$769
This Air Canada deal was found by Cheapflights users on 10/21. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/131:00 pm -
1 stop14h 52m
Sat 12/53:45 pm -
1 stop35h 15m
Deal found 10/21![Air Canada logo]()
$770
This United Airlines deal was found by Cheapflights users on 10/21. 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 11/202:30 pm -
1 stop13h 35m
Fri 12/118:50 pm -
1 stop30h 10m
Deal found 10/21![United Airlines logo]()
$772
This Air Canada deal was found by Cheapflights users on 10/22. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/201:00 pm -
2 stops32h 09m
Thu 1/710:30 am -
2 stops16h 30m
Deal found 10/22![Air Canada logo]()
$773
This Air Canada deal was found by Cheapflights users on 10/21. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:05 am -
2 stops20h 00m
Tue 12/19:21 pm -
1 stop29h 39m
Deal found 10/21![Air Canada logo]()
$774
This Air Canada deal was found by Cheapflights users on 10/21. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/131:00 pm -
1 stop14h 52m
Mon 11/307:05 am -
2 stops25h 25m
Deal found 10/21![Air Canada logo]()
$775
Best flights from Athens to IllinoisDiscover carefully curated flight deals from Athens to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
Discover carefully curated flight deals from Athens to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
This United Airlines deal was found by Cheapflights users on 10/24. 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.
Sun 12/66:45 am -
1 stop14h 25m
Sun 12/131:55 pm -
1 stop13h 05m
Deal found 10/24![United Airlines logo]()
$767
This Delta deal was found by Cheapflights users on 10/24. 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 12/266:10 am -
2 stops21h 53m
Sat 1/96:30 am -
2 stops23h 10m
Deal found 10/24![Delta logo]()
$779
This Austrian Airlines deal was found by Cheapflights users on 10/22. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/178:00 am -
2 stops18h 54m
Wed 3/311:12 pm -
2 stops26h 28m
Deal found 10/22![Austrian Airlines logo]()
$787
This British Airways deal was found by Cheapflights users on 10/24. 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.
Mon 1/117:55 am -
1 stop18h 50m
Wed 6/27:25 pm -
1 stop15h 35m
Deal found 10/24![British Airways logo]()
$794
This Turkish Airlines deal was found by Cheapflights users on 10/22. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2311:35 am -
1 stop14h 45m
Wed 12/308:15 pm -
1 stop32h 00m
Deal found 10/22![Turkish Airlines logo]()
$798
This British Airways deal was found by Cheapflights users on 10/24. 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.
Mon 1/117:55 am -
2 stops20h 19m
Wed 6/27:25 pm -
1 stop15h 35m
Deal found 10/24![Multiple Airlines logo]()
$800
This KLM deal was found by Cheapflights users on 10/21. 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 12/1811:45 am -
1 stop17h 51m
Thu 1/74:25 pm -
1 stop16h 10m
Deal found 10/21![KLM logo]()
$822
This United Airlines deal was found by Cheapflights users on 10/24. 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.
Sun 12/66:45 am -
1 stop14h 25m
Mon 1/1111:25 am -
2 stops16h 40m
Deal found 10/24![United Airlines logo]()
$772
This Delta deal was found by Cheapflights users on 10/22. 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 11/146:10 am -
2 stops23h 32m
Sat 11/214:25 pm -
1 stop24h 55m
Deal found 10/22![Delta logo]()
$813
This Delta deal was found by Cheapflights users on 10/21. 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 12/1811:45 am -
1 stop17h 51m
Thu 1/77:00 am -
2 stops22h 40m
Deal found 10/21![Delta logo]()
$817
Last-minute flights from Athens to IllinoisDiscover last-minute flight deals from Athens to Illinois. Data last updated October 25, 2026 and is based on user searches.
Discover last-minute flight deals from Athens to Illinois. Data last updated October 25, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 10/21. 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 10/319:50 pm -
1 stop29h 30m
Thu 11/59:15 pm -
1 stop27h 25m
Deal found 10/21![Turkish Airlines logo]()
$788
This Turkish Airlines deal was found by Cheapflights users on 10/21. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/319:50 pm -
1 stop29h 30m
Tue 11/1011:45 am -
1 stop19h 10m
Deal found 10/21![Turkish Airlines logo]()
$825
This Turkish Airlines deal was found by Cheapflights users on 10/21. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/319:50 pm -
1 stop29h 30m
Mon 1/258:15 pm -
1 stop16h 45m
Deal found 10/21![Turkish Airlines logo]()
$826
This Turkish Airlines deal was found by Cheapflights users on 10/21. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/319:50 pm -
1 stop29h 30m
Mon 11/98:15 pm -
1 stop16h 45m
Deal found 10/21![Turkish Airlines logo]()
$875
This lastminute.com deal was found by Cheapflights users on 10/20. 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.
Sun 11/11:05 pm -
1 stop29h 55m
Mon 12/2811:45 am -
1 stop15h 00m
Deal found 10/20![Turkish Airlines logo]()
$801
This Delta deal was found by Cheapflights users on 10/21. 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 11/31:35 pm -
1 stop32h 50m
Mon 1/2510:40 am -
2 stops19h 00m
Deal found 10/21![Delta logo]()
$873
This United Airlines deal was found by Cheapflights users on 10/21. 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 11/412:25 pm -
2 stops27h 05m
Fri 1/2912:55 pm -
2 stops16h 00m
Deal found 10/21![United Airlines logo]()
$779
This United Airlines deal was found by Cheapflights users on 10/21. 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 11/412:25 pm -
2 stops27h 05m
Thu 1/288:40 am -
2 stops19h 25m
Deal found 10/21![United Airlines logo]()
$785
This Gotogate deal was found by Cheapflights users on 10/23. 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.
Wed 11/41:05 pm -
1 stop38h 15m
Tue 11/1711:45 am -
1 stop12h 55m
Deal found 10/23![Turkish Airlines logo]()
$849
This United Airlines deal was found by Cheapflights users on 10/24. 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 11/412:25 pm -
2 stops19h 36m
Tue 12/154:30 pm -
1 stop34h 30m
Deal found 10/24![United Airlines logo]()
$866
This Delta deal was found by Cheapflights users on 10/23. 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 11/46:10 am -
1 stop16h 15m
Tue 11/1710:30 am -
2 stops19h 10m
Deal found 10/23![Delta logo]()
$868
One-way flights from Athens to IllinoisSearch for one-way flight options from Athens to Illinois. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
Search for one-way flight options from Athens to Illinois. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/20. 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 12/2011:30 am -
3 stops37h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Multiple Airlines logo]()
$396
This Kiwi.com deal was found by Cheapflights users on 10/20. 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 12/2210:25 pm -
3 stops50h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Multiple Airlines logo]()
$402
This Kiwi.com deal was found by Cheapflights users on 10/22. 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 11/2311:45 pm -
3 stops47h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Multiple Airlines logo]()
$416
This Kiwi.com deal was found by Cheapflights users on 10/22. 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.
Fri 12/410:50 pm -
3 stops48h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Multiple Airlines logo]()
$426
This Kiwi.com deal was found by Cheapflights users on 10/22. 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 11/214:45 pm -
3 stops56h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Multiple Airlines logo]()
$431
This Kiwi.com deal was found by Cheapflights users on 10/23. 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 12/1611:00 am -
3 stops38h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Multiple Airlines logo]()
$433
This Kiwi.com deal was found by Cheapflights users on 10/22. 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.
Fri 11/2011:50 pm -
3 stops47h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Multiple Airlines logo]()
$434
This Kiwi.com deal was found by Cheapflights users on 10/20. 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 1/611:40 pm -
2 stops25h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Multiple Airlines logo]()
$437
This Kiwi.com deal was found by Cheapflights users on 10/21. 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 11/911:45 pm -
3 stops47h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Multiple Airlines logo]()
$440
This Kiwi.com deal was found by Cheapflights users on 10/20. 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 12/177:55 am -
3 stops39h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Multiple Airlines logo]()
$442
This Booking.com deal was found by Cheapflights users on 10/22. 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 12/54:10 am -
1 stop19h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![TAP AIR PORTUGAL logo]()
$444
This Cheapflightsfares deal was found by Cheapflights users on 10/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/317:00 pm -
2 stops37h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Qatar Airways logo]()
$967
Find flight deals from Athens to Illinois
Keep the following information in mind while searching for Athens to Illinois flight deals. Data was last updated October 25, 2026.
Round-trip from | $764 (Air Canada) |
|---|---|
One-way from | $396 (Kiwi.com) |
Popular in | April |
Cheapest in | February |
Average price | $851 |
Good round-trip deal | $918 or less |
Good one-way deal | $517 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Athens 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 25, 2026.
Use the filters below to find and compare flights from Athens to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
AthensChicago
ATH Athens Eleftherios V. - ORD Chicago O'Hare Intl
ATHORD
Athens Eleftherios V.
Tue 4/13
4:30 pm-2:30 pm
1 stop30h 00m
Chicago O'Hare Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$457
Quickest round-trip
AthensChicago
ATH Athens Eleftherios V. - ORD Chicago O'Hare Intl
ATHORD
Athens Eleftherios V.
Mon 1/11
6:10 am-2:25 pm
1 stop16h 15m
Chicago O'Hare Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$468
AthensChicago
ATH Athens Eleftherios V. - ORD Chicago O'Hare Intl
ATHORD
Athens Eleftherios V.
Mon 1/11
8:20 pm-1:45 pm
1 stop25h 25m
Chicago O'Hare Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$471
AthensChicago
ATH Athens Eleftherios V. - ORD Chicago O'Hare Intl
ATHORD
Athens Eleftherios V.
Wed 12/16
6:10 am-2:25 pm
1 stop16h 15m
Chicago O'Hare Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$489
AthensChicago
ATH Athens Eleftherios V. - ORD Chicago O'Hare Intl
ATHORD
Athens Eleftherios V.
Tue 1/5
3:50 pm-9:20 pm
2 stops37h 30m
Chicago O'Hare Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$517
AthensChicago
ATH Athens Eleftherios V. - ORD Chicago O'Hare Intl
ATHORD
Athens Eleftherios V.
Mon 11/23
9:00 pm-5:20 pm
2 stops28h 20m
Chicago O'Hare Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$578
AthensChicago
ATH Athens Eleftherios V. - ORD Chicago O'Hare Intl
ATHORD
Athens Eleftherios V.
Sun 12/6
6:45 am-1:10 pm
1 stop14h 25m
Chicago O'Hare Intl
Sun 12/13
1:55 pm-11:00 am
1 stop13h 05m
$767
AthensChicago
ATH Athens Eleftherios V. - ORD Chicago O'Hare Intl
ATHORD
Athens Eleftherios V.
Sun 12/6
6:45 am-1:10 pm
1 stop14h 25m
Chicago O'Hare Intl
Mon 1/11
11:25 am-12:05 pm
2 stops16h 40m
$772
AthensChicago
ATH Athens Eleftherios V. - ORD Chicago O'Hare Intl
ATHORD
Athens Eleftherios V.
Sat 12/26
6:10 am-8:03 pm
2 stops21h 53m
Chicago O'Hare Intl
Sat 1/9
6:30 am-1:40 pm
2 stops23h 10m
$779
AthensChicago
ATH Athens Eleftherios V. - ORD Chicago O'Hare Intl
ATHORD
Athens Eleftherios V.
Tue 11/17
8:00 am-6:54 pm
2 stops18h 54m
Chicago O'Hare Intl
Wed 3/31
1:12 pm-11:40 pm
2 stops26h 28m
$787
Showing 1-10 of 18 resultsSorted by cheapest first
Best time to book a flight from Athens to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Athens with our price prediction graph.
ATH-ORD
ATH-MLI
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 Athens to Illinois
ATH-USIL
ATH-ORD
ATH-MLI
What is the cheapest month to book a flight from Athens to Illinois?
Currently, February is the cheapest month in which you can book a flight from Athens to Illinois (average of $673). Flying from Athens to Illinois in October is currently the most expensive (average of $916). 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 ATH to IL?
Find hourly flight availability from Athens 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 25, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Athens to Illinois as you normally would.
How much does it cost to fly round-trip from Athens to Illinois?
Airfare is below average for this route at the moment.
Athens to Illinois flights typically cost between $770 and $974 in December.The cheapest round-trip price found within the last 5 days was $764 on Multiple Airlines (Dec 6-Dec 13).
How far ahead should I book a flight from Athens to Illinois?
Booking 32 days in advance of your planned departure date is, on average, the best time to get cheap flights from Athens to Illinois. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
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 25, 2026.
See what other customers who have flown with Turkish Airlines,United Airlines, andIberia from Athens to Illinois have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.4
Crew
7.8
Food
7.5
Boarding
7.3
Entertainment
7.5
Comfort
7.3
Reviews
1 / 20
6.0
GoodAnonymous,Oct 2024
ATH - IST
Overall
7.4
Crew
7.8
Food
7.5
Boarding
7.3
Entertainment
7.5
Comfort
7.3
Reviews
1 / 20
6.0
GoodAnonymous,Oct 2024
ATH - IST
Overall
7.4
Crew
7.8
Food
7.5
Boarding
7.3
Entertainment
7.5
Comfort
7.3
Reviews
1 / 20
6.0
GoodAnonymous,Oct 2024
ATH - IST
Overall
7.4
Crew
7.8
Food
7.5
Boarding
7.3
Entertainment
7.5
Comfort
7.3
Reviews
1 / 20
6.0
GoodAnonymous,Oct 2024
ATH - IST
Overall
7.4
Crew
7.8
Food
7.5
Boarding
7.3
Entertainment
7.5
Comfort
7.3
Reviews
1 / 20
6.0
GoodAnonymous,Oct 2024
ATH - IST
Overall
7.4
Crew
7.8
Food
7.5
Boarding
7.3
Entertainment
7.5
Comfort
7.3
Reviews
1 / 20
6.0
GoodAnonymous,Oct 2024
ATH - IST
Related info for your journey
Find useful and relevant information for your journey from Athens 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 Athens to Illinois
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Athens and Illinois flights
Browse other Athens and Illinois flight options. Last updated on October 25, 2026.
Popular flight searches
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Top 7 airlines flying from Athens to Illinois
Discover the top 7 airlines that operate flights from Athens 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 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$531 | Average$840 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$539 | Average$808 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$552 | Average$824 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$586 | Average$866 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$587 | Average$715 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$644 | Average$803 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$657 | Average$861 | FlexibilityNo cancel fee | On-time69% |