$376+ Cheap flights from Illinois to Thailand
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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BKK
Sep 18 — Sep 251
Round-trip
1 adult, Economy
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Cheapest flights from Illinois to ThailandExplore the most affordable flight options available from Illinois to Thailand. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 19, 2026.
Explore the most affordable flight options available from Illinois to Thailand. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 9/48:25 pm -
1 stop27h 45m
Tue 9/223:15 am -
1 stop24h 25m
Deal found 8/18![Etihad Airways logo]()
$853
This Air Canada deal was found by Cheapflights users on 8/17. 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.
Mon 9/1411:05 am -
2 stops30h 00m
Mon 9/217:05 am -
2 stops25h 07m
Deal found 8/17![Air Canada logo]()
$854
This Justfly.com deal was found by Cheapflights users on 8/18. 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.
Sat 8/291:15 pm -
1 stop22h 40m
Mon 11/22:55 am -
1 stop25h 05m
Deal found 8/18![Etihad Airways logo]()
$855
This Air Canada deal was found by Cheapflights users on 8/17. 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.
Mon 8/318:44 am -
2 stops32h 21m
Mon 9/217:05 am -
1 stop19h 38m
Deal found 8/17![Air Canada logo]()
$857
This SmartFares deal was found by Cheapflights users on 8/16. 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.
Fri 10/22:00 pm -
1 stop21h 55m
Mon 11/307:55 pm -
1 stop32h 05m
Deal found 8/16![Etihad Airways logo]()
$858
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 9/98:25 pm -
1 stop22h 20m
Fri 9/183:15 am -
1 stop24h 25m
Deal found 8/18![Etihad Airways logo]()
$859
This Trip.com deal was found by Cheapflights users on 8/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/232:00 pm -
1 stop21h 55m
Mon 3/82:40 pm -
1 stop30h 15m
Deal found 8/18![Etihad Airways logo]()
$860
This SmartFares deal was found by Cheapflights users on 8/18. 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.
Mon 10/263:35 pm -
1 stop20h 40m
Mon 11/307:55 am -
1 stop18h 00m
Deal found 8/18![Cathay Pacific logo]()
$862
This Gotogate deal was found by Cheapflights users on 8/19. 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 9/153:40 pm -
2 stops49h 25m
Mon 9/281:35 am -
2 stops32h 31m
Deal found 8/19![Air Canada logo]()
$863
This Etihad Airways deal was found by Cheapflights users on 8/18. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/299:20 pm -
1 stop38h 00m
Wed 1/277:55 pm -
1 stop32h 05m
Deal found 8/18![Etihad Airways logo]()
$864
This Etihad Airways deal was found by Cheapflights users on 8/18. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:25 pm -
1 stop38h 55m
Wed 11/182:40 pm -
1 stop37h 20m
Deal found 8/18![Etihad Airways logo]()
$865
This Bravofly deal was found by Cheapflights users on 8/14. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/285:45 pm -
2 stops27h 00m
Mon 10/54:55 pm -
2 stops27h 45m
Deal found 8/14![Multiple Airlines logo]()
$881
Best flights from Illinois to ThailandDiscover carefully curated flight deals from Illinois to Thailand that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 19, 2026.
Discover carefully curated flight deals from Illinois to Thailand that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 19, 2026.
This Etihad Airways deal was found by Cheapflights users on 8/16. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/279:20 pm -
1 stop20h 45m
Wed 11/119:10 am -
1 stop42h 50m
Deal found 8/16![Etihad Airways logo]()
$902
This United Airlines deal was found by Cheapflights users on 8/18. 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 11/175:52 pm -
2 stops28h 38m
Thu 12/104:55 pm -
2 stops32h 13m
Deal found 8/18![United Airlines logo]()
$909
This Delta deal was found by Cheapflights users on 8/15. 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 9/285:30 am -
2 stops30h 05m
Thu 10/299:40 am -
2 stops25h 54m
Deal found 8/15![Delta logo]()
$922
This Etihad Airways deal was found by Cheapflights users on 8/17. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/14:53 pm -
2 stops37h 17m
Thu 10/83:55 pm -
2 stops38h 36m
Deal found 8/17![Multiple Airlines logo]()
$1,034
This EVA Air deal was found by Cheapflights users on 8/16. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2412:30 am -
1 stop22h 05m
Sun 11/87:45 pm -
2 stops36h 50m
Deal found 8/16![EVA Air logo]()
$1,092
This IEagle deal was found by Cheapflights users on 8/14. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/267:01 am -
2 stops41h 04m
Sun 2/73:00 am -
2 stops28h 31m
Deal found 8/14![Qatar Airways logo]()
$1,106
This Korean Air deal was found by Cheapflights users on 8/16. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/259:29 am -
2 stops25h 26m
Wed 10/2812:15 am -
2 stops24h 32m
Deal found 8/16![Korean Air logo]()
$1,349
This Emirates deal was found by Cheapflights users on 8/15. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/58:35 pm -
1 stop26h 35m
Tue 10/2711:00 pm -
1 stop28h 45m
Deal found 8/15![Emirates logo]()
$1,374
This KAYAK deal was found by Cheapflights users on 8/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:14 am -
2 stops28h 46m
Sun 11/158:05 am -
2 stops22h 03m
Deal found 8/14![Japan Airlines logo]()
$1,393
This Austrian Airlines deal was found by Cheapflights users on 8/18. 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.
Wed 9/912:55 pm -
3 stops42h 15m
Wed 9/238:00 pm -
3 stops33h 05m
Deal found 8/18![Austrian Airlines logo]()
$1,542
This Delta deal was found by Cheapflights users on 8/14. 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 9/286:10 am -
2 stops29h 25m
Mon 10/59:40 pm -
2 stops27h 19m
Deal found 8/14![Delta logo]()
$922
This oojo deal was found by Cheapflights users on 8/19. 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.
Wed 9/232:00 pm -
2 stops31h 20m
Sun 10/411:55 am -
2 stops32h 40m
Deal found 8/19![Etihad Airways logo]()
$938
This United Airlines deal was found by Cheapflights users on 8/15. 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.
Mon 2/83:51 pm -
2 stops30h 39m
Mon 2/227:10 am -
1 stop19h 40m
Deal found 8/15![United Airlines logo]()
$939
This Delta deal was found by Cheapflights users on 8/18. 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 11/306:45 am -
2 stops29h 00m
Thu 12/249:40 am -
2 stops27h 06m
Deal found 8/18![Delta logo]()
$922
This Etihad Airways deal was found by Cheapflights users on 8/14. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/36:13 am -
2 stops35h 22m
Tue 2/162:40 pm -
2 stops40h 52m
Deal found 8/14![Multiple Airlines logo]()
$1,034
This United Airlines deal was found by Cheapflights users on 8/15. 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 9/110:27 am -
2 stops30h 08m
Fri 9/47:00 am -
1 stop19h 55m
Deal found 8/15![United Airlines logo]()
$979
This IEagle deal was found by Cheapflights users on 8/16. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/47:01 am -
2 stops34h 39m
Thu 2/186:55 pm -
2 stops36h 36m
Deal found 8/16![Qatar Airways logo]()
$1,106
This Delta deal was found by Cheapflights users on 8/14. 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 9/305:30 am -
2 stops31h 35m
Wed 10/289:40 am -
2 stops24h 20m
Deal found 8/14![Delta logo]()
$922
This EVA Air deal was found by Cheapflights users on 8/18. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/912:30 am -
2 stops47h 40m
Mon 9/1412:55 pm -
2 stops43h 50m
Deal found 8/18![EVA Air logo]()
$1,117
This Etihad Airways deal was found by Cheapflights users on 8/14. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/284:53 pm -
2 stops37h 17m
Mon 10/59:00 pm -
2 stops39h 09m
Deal found 8/14![Multiple Airlines logo]()
$1,034
This United Airlines deal was found by Cheapflights users on 8/16. 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 2/114:25 pm -
1 stop23h 45m
Fri 2/267:10 am -
2 stops25h 33m
Deal found 8/16![United Airlines logo]()
$985
This Delta deal was found by Cheapflights users on 8/15. 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 8/279:59 am -
2 stops27h 06m
Mon 9/142:35 am -
2 stops32h 09m
Deal found 8/15![Delta logo]()
$922
This EVA Air deal was found by Cheapflights users on 8/16. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2512:30 am -
2 stops25h 15m
Thu 10/2910:10 am -
2 stops46h 25m
Deal found 8/16![EVA Air logo]()
$1,137
This Etihad Airways deal was found by Cheapflights users on 8/14. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/26:13 am -
2 stops28h 07m
Tue 2/167:55 pm -
2 stops35h 37m
Deal found 8/14![Multiple Airlines logo]()
$1,034
This Qatar Airways deal was found by Cheapflights users on 8/14. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/138:48 am -
2 stops34h 47m
Wed 9/162:30 am -
2 stops33h 28m
Deal found 8/14![Qatar Airways logo]()
$1,166
This Delta deal was found by Cheapflights users on 8/14. 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 9/149:24 am -
2 stops24h 21m
Mon 9/212:35 am -
2 stops32h 09m
Deal found 8/14![Delta logo]()
$922
This United Airlines deal was found by Cheapflights users on 8/18. 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 11/294:25 pm -
1 stop23h 45m
Wed 3/317:00 am -
2 stops23h 46m
Deal found 8/18![United Airlines logo]()
$1,031
This Etihad Airways deal was found by Cheapflights users on 8/14. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/25:00 am -
2 stops29h 20m
Sun 2/212:40 pm -
2 stops40h 28m
Deal found 8/14![Multiple Airlines logo]()
$1,038
This EVA Air deal was found by Cheapflights users on 8/17. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/1411:30 pm -
2 stops30h 35m
Sat 4/107:35 am -
2 stops25h 25m
Deal found 8/17![EVA Air logo]()
$1,157
This Qatar Airways deal was found by Cheapflights users on 8/18. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:20 pm -
2 stops26h 15m
Mon 9/149:35 pm -
1 stop29h 30m
Deal found 8/18![Qatar Airways logo]()
$1,171
Last-minute flights from Illinois to ThailandDiscover last-minute flight deals from Illinois to Thailand. Data last updated August 19, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Thailand. Data last updated August 19, 2026 and is based on user searches.
This Justfly.com deal was found by Cheapflights users on 8/18. 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.
Sat 8/291:15 pm -
1 stop22h 40m
Mon 11/22:55 am -
1 stop25h 05m
Deal found 8/18![Etihad Airways logo]()
$855
This Air Canada deal was found by Cheapflights users on 8/16. 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.
Mon 8/318:44 am -
2 stops32h 21m
Mon 9/217:05 am -
1 stop19h 38m
Deal found 8/16![Air Canada logo]()
$857
This Air Canada deal was found by Cheapflights users on 8/17. 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 9/212:45 pm -
2 stops28h 20m
Wed 9/169:50 am -
2 stops24h 15m
Deal found 8/17![Air Canada logo]()
$872
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 9/48:25 pm -
1 stop27h 45m
Tue 9/223:15 am -
1 stop24h 25m
Deal found 8/18![Etihad Airways logo]()
$853
This Etihad Airways deal was found by Cheapflights users on 8/18. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/52:00 pm -
1 stop21h 55m
Fri 9/253:55 pm -
1 stop28h 40m
Deal found 8/18![Etihad Airways logo]()
$865
This Air Canada deal was found by Cheapflights users on 8/16. 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 9/67:46 pm -
2 stops45h 19m
Mon 9/141:35 am -
2 stops30h 31m
Deal found 8/16![Air Canada logo]()
$864
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 9/98:25 pm -
1 stop22h 20m
Fri 9/183:15 am -
1 stop24h 25m
Deal found 8/18![Etihad Airways logo]()
$859
This Air Canada deal was found by Cheapflights users on 8/17. 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.
Mon 9/1411:05 am -
2 stops30h 00m
Mon 9/217:05 am -
2 stops25h 07m
Deal found 8/17![Air Canada logo]()
$854
This Gotogate deal was found by Cheapflights users on 8/19. 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 9/153:40 pm -
2 stops49h 25m
Mon 9/281:35 am -
2 stops32h 31m
Deal found 8/19![Air Canada logo]()
$863
This Air Canada deal was found by Cheapflights users on 8/17. 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.
Tue 9/157:45 pm -
2 stops45h 20m
Wed 9/307:00 am -
2 stops25h 06m
Deal found 8/17![Air Canada logo]()
$869
This Air Canada deal was found by Cheapflights users on 8/15. 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 9/168:45 am -
2 stops32h 20m
Wed 11/119:40 am -
2 stops23h 21m
Deal found 8/15![Air Canada logo]()
$868
This Bravofly deal was found by Cheapflights users on 8/14. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/285:45 pm -
2 stops27h 00m
Mon 10/54:55 pm -
2 stops27h 45m
Deal found 8/14![Multiple Airlines logo]()
$881
One-way flights from Illinois to ThailandSearch for one-way flight options from Illinois to Thailand. Find affordable one-way fares based on user searches. Data last updated August 19, 2026.
Search for one-way flight options from Illinois to Thailand. Find affordable one-way fares based on user searches. Data last updated August 19, 2026.
This Flightnetwork deal was found by Cheapflights users on 8/16. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/308:25 pm -
1 stop39h 25m
Deal found 8/16![Etihad Airways logo]()
$376
This Flightnetwork deal was found by Cheapflights users on 8/14. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/282:00 pm -
1 stop40h 20m
Deal found 8/14![Etihad Airways logo]()
$377
This Gotogate deal was found by Cheapflights users on 8/17. 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 9/38:25 pm -
1 stop39h 25m
Deal found 8/17![Etihad Airways logo]()
$379
This Booking.com deal was found by Cheapflights users on 8/18. 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.
Thu 10/18:25 pm -
1 stop39h 30m
Deal found 8/18![Etihad Airways logo]()
$425
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 9/52:00 pm -
1 stop21h 55m
Deal found 8/14![Etihad Airways logo]()
$439
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 8/288:00 pm -
1 stop28h 10m
Deal found 8/17![Etihad Airways logo]()
$440
This Trip.com deal was found by Cheapflights users on 8/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/171:10 pm -
1 stop29h 05m
Deal found 8/18![Etihad Airways logo]()
$442
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 11/1110:45 pm -
1 stop35h 00m
Deal found 8/14![Philippine Airlines logo]()
$443
This SmartFares deal was found by Cheapflights users on 8/15. 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.
Tue 11/32:35 pm -
1 stop31h 40m
Deal found 8/15![Cathay Pacific logo]()
$444
This SmartFares deal was found by Cheapflights users on 8/18. 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 11/262:35 pm -
1 stop31h 45m
Deal found 8/18![Cathay Pacific logo]()
$444
This Mytrip deal was found by Cheapflights users on 8/17. 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.
Sat 9/192:00 pm -
1 stop40h 10m
Deal found 8/17![Etihad Airways logo]()
$446
This oojo deal was found by Cheapflights users on 8/14. 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 11/22:35 pm -
1 stop31h 40m
Deal found 8/14![Cathay Pacific logo]()
$447
Find flight deals from Illinois to Thailand
Keep the following information in mind while searching for Illinois to Thailand flight deals. Data was last updated August 19, 2026.
Most accurate provider | Expedia 1 star |
|---|---|
Most trusted provider | Expedia 3 stars |
Round-trip from | $853 (Kiwi.com) |
One-way from | $376 (Flightnetwork) |
Popular in | December |
Cheapest in | September |
Average price | $1,043 |
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois to Thailand 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 August 19, 2026.
Use the filters below to find and compare flights from Illinois to Thailand that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoChiang Mai
ORD Chicago O'Hare Intl - CNX Chiang Mai
ORDCNX
Chicago O'Hare Intl
Tue 10/27
9:20 pm-6:05 am
1 stop20h 45m
Chiang Mai
Wed 11/11
9:10 am-3:00 pm
1 stop42h 50m
$902
ChicagoBangkok
ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi
ORDBKK
Chicago O'Hare Intl
Tue 11/17
5:52 pm-11:30 am
2 stops28h 38m
Bangkok Suvarnabhumi
Thu 12/10
4:55 pm-12:08 pm
2 stops32h 13m
$909
ChicagoBangkok
ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi
ORDBKK
Chicago O'Hare Intl
Mon 9/28
5:30 am-11:35 pm
2 stops30h 05m
Bangkok Suvarnabhumi
Thu 10/29
9:40 am-11:34 pm
2 stops25h 54m
$922
ChicagoBangkok
ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi
ORDBKK
Chicago O'Hare Intl
Mon 9/28
6:10 am-11:35 pm
2 stops29h 25m
Bangkok Suvarnabhumi
Mon 10/5
9:40 pm-12:59 pm
2 stops27h 19m
$922
ChicagoBangkok
ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi
ORDBKK
Chicago O'Hare Intl
Mon 11/30
6:45 am-12:45 am
2 stops29h 00m
Bangkok Suvarnabhumi
Thu 12/24
9:40 am-11:46 pm
2 stops27h 06m
$922
ChicagoBangkok
ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi
ORDBKK
Chicago O'Hare Intl
Wed 9/30
5:30 am-1:05 am
2 stops31h 35m
Bangkok Suvarnabhumi
Wed 10/28
9:40 am-10:00 pm
2 stops24h 20m
$922
ChicagoBangkok
MDW Chicago Midway - BKK Bangkok Suvarnabhumi
MDWBKK
Chicago Midway
Thu 8/27
9:59 am-1:05 am
2 stops27h 06m
Bangkok Suvarnabhumi
Mon 9/14
2:35 am-10:44 pm
2 stops32h 09m
$922
ChicagoBangkok
MDW Chicago Midway - BKK Bangkok Suvarnabhumi
MDWBKK
Chicago Midway
Mon 9/14
9:24 am-9:45 pm
2 stops24h 21m
Bangkok Suvarnabhumi
Mon 9/21
2:35 am-10:44 pm
2 stops32h 09m
$922
ChicagoChiang Mai
ORD Chicago O'Hare Intl - CNX Chiang Mai
ORDCNX
Chicago O'Hare Intl
Wed 9/23
2:00 pm-9:20 am
2 stops31h 20m
Chiang Mai
Sun 10/4
11:55 am-8:35 am
2 stops32h 40m
$938
ChicagoBangkok
ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi
ORDBKK
Chicago O'Hare Intl
Mon 2/8
3:51 pm-11:30 am
2 stops30h 39m
Bangkok Suvarnabhumi
Mon 2/22
7:10 am-1:50 pm
1 stop19h 40m
$939
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Illinois to Thailand
Have a flexible travel schedule? Discover the best time to fly to Thailand from Illinois with our price prediction graph.
ORD-BKK
ORD-CNX
ORD-HKT
PIA-BKK
MDW-BKK
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 Illinois to Thailand
USIL-TH0
ORD-BKK
ORD-CNX
ORD-HKT
PIA-BKK
What is the cheapest month to book a flight from Illinois to Thailand?
Currently, September is the cheapest month in which you can book a flight from Illinois to Thailand (average of $872). Flying from Illinois to Thailand in December is currently the most expensive (average of $1,328). 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.
How far ahead should I book a flight from Illinois to Thailand?
The price you pay for your flight from Illinois to Thailand may vary depending on when you book. For the best chance of a lower fare, look to book 84 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Related info for your journey
Find useful and relevant information for your journey from Illinois to Thailand. 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 Illinois to Thailand
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Thailand by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Illinois to Thailand by cabin class
Find flights from Illinois to Thailand, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Illinois and Thailand flights
Browse other Illinois and Thailand flight options. Last updated on August 19, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Thailand
Find the right flight back to Illinois after your stay in Thailand
Illinois to Thailand flights
Consider these flights traveling from Illinois to Thailand.
Fly to Thailand regions
Consider these flights traveling to Thailand regions.
Top 10 airlines flying from Illinois to Thailand
Discover the top 10 airlines that operate flights from Illinois to Thailand. 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 August 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$601 | Average$867 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$674 | Average$928 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$688 | Average$1,144 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$694 | Average$985 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$710 | Average$1,014 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$723 | Average$1,171 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$749 | Average$1,392 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$790 | Average$1,134 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$804 | Average$1,114 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$815 | Average$949 | FlexibilityNo cancel fee | On-time79% |