$338+ Cheap flights from Illinois to Thailand
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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BKK
Oct 20 — Oct 271
Round-trip
1 adult, Economy
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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 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 September 20, 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 September 20, 2026.
This Gotogate deal was found by Cheapflights users on 9/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/171:25 pm -
1 stop36h 55m
Wed 9/309:25 am -
1 stop42h 15m
Deal found 9/16![Etihad Airways logo]()
$767
This oojo deal was found by Cheapflights users on 9/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/142:00 pm -
1 stop40h 20m
Tue 10/2012:55 am -
1 stop43h 40m
Deal found 9/16![Etihad Airways logo]()
$773
This Gotogate deal was found by Cheapflights users on 9/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/178:05 pm -
1 stop39h 45m
Thu 9/244:15 pm -
1 stop35h 40m
Deal found 9/16![Etihad Airways logo]()
$787
This FlightHub deal was found by Cheapflights users on 9/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/228:05 pm -
1 stop39h 45m
Mon 9/289:25 am -
1 stop42h 15m
Deal found 9/19![Etihad Airways logo]()
$796
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/292:10 pm -
1 stop21h 40m
Wed 11/49:00 pm -
1 stop23h 55m
Deal found 9/16![Etihad Airways logo]()
$797
This oojo deal was found by Cheapflights users on 9/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/18:25 pm -
2 stops34h 05m
Thu 10/2210:20 am -
2 stops34h 15m
Deal found 9/16![Etihad Airways logo]()
$799
This oojo deal was found by Cheapflights users on 9/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/79:39 am -
2 stops26h 11m
Thu 10/229:55 pm -
2 stops29h 45m
Deal found 9/15![Etihad Airways logo]()
$803
This Bravofly deal was found by Cheapflights users on 9/19. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/32:10 pm -
1 stop39h 45m
Tue 11/109:10 am -
1 stop35h 45m
Deal found 9/19![Multiple Airlines logo]()
$812
This oojo deal was found by Cheapflights users on 9/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/282:00 pm -
1 stop21h 50m
Sat 10/33:20 am -
1 stop24h 20m
Deal found 9/15![Etihad Airways logo]()
$813
This oojo deal was found by Cheapflights users on 9/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/88:25 pm -
1 stop28h 05m
Thu 10/159:20 pm -
2 stops36h 50m
Deal found 9/18![Etihad Airways logo]()
$816
This oojo deal was found by Cheapflights users on 9/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/91:10 pm -
1 stop33h 35m
Mon 11/167:55 pm -
1 stop25h 00m
Deal found 9/16![Etihad Airways logo]()
$826
This oojo deal was found by Cheapflights users on 9/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/188:25 pm -
1 stop39h 30m
Sun 11/152:40 pm -
1 stop30h 15m
Deal found 9/16![Etihad Airways logo]()
$827
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 September 20, 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 September 20, 2026.
This Etihad Airways deal was found by Cheapflights users on 9/19. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/151:10 pm -
1 stop21h 40m
Thu 2/189:00 pm -
1 stop23h 55m
Deal found 9/19![Etihad Airways logo]()
$896
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Mon 11/301:05 pm -
2 stops33h 25m
Tue 12/87:10 am -
1 stop19h 40m
Deal found 9/16![United Airlines logo]()
$904
This Delta deal was found by Cheapflights users on 9/18. 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.
Wed 1/205:25 pm -
2 stops31h 00m
Wed 2/39:40 pm -
2 stops27h 53m
Deal found 9/18![Delta logo]()
$922
This EVA Air deal was found by Cheapflights users on 9/16. 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 1/2311:30 pm -
2 stops30h 30m
Tue 2/211:50 am -
1 stop20h 45m
Deal found 9/16![EVA Air logo]()
$1,108
This Emirates deal was found by Cheapflights users on 9/18. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/197:45 pm -
1 stop25h 20m
Fri 2/511:10 am -
1 stop40h 45m
Deal found 9/18![Emirates logo]()
$1,137
This Cathay Pacific deal was found by Cheapflights users on 9/16. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:29 am -
2 stops39h 51m
Tue 11/1012:20 pm -
2 stops41h 23m
Deal found 9/16![Multiple Airlines logo]()
$1,141
This oojo deal was found by Cheapflights users on 9/19. 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.
Tue 10/67:02 am -
2 stops36h 43m
Sat 10/179:35 pm -
2 stops38h 24m
Deal found 9/19![Qatar Airways logo]()
$1,267
This Korean Air deal was found by Cheapflights users on 9/19. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/2011:10 am -
1 stop22h 35m
Sat 2/1312:20 am -
1 stop21h 10m
Deal found 9/19![Korean Air logo]()
$1,389
This BusinessClass deal was found by Cheapflights users on 9/15. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/65:27 pm -
2 stops59h 53m
Sat 10/1710:20 am -
3 stops46h 37m
Deal found 9/15![Cathay Pacific logo]()
$1,560
This United Airlines deal was found by Cheapflights users on 9/15. 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 11/233:47 pm -
2 stops30h 43m
Mon 12/74:55 pm -
2 stops31h 52m
Deal found 9/15![United Airlines logo]()
$909
This Delta deal was found by Cheapflights users on 9/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/105:59 pm -
2 stops41h 21m
Sun 2/211:05 am -
2 stops24h 28m
Deal found 9/16![Delta logo]()
$928
This Malaysia Airlines deal was found by Cheapflights users on 9/15. 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 Malaysia Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/16:50 pm -
2 stops26h 00m
Wed 2/1012:45 pm -
3 stops31h 45m
Deal found 9/15![Malaysia Airlines logo]()
$1,972
This United Airlines deal was found by Cheapflights users on 9/15. 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 11/3010:40 am -
1 stop23h 10m
Thu 12/244:55 pm -
3 stops30h 15m
Deal found 9/15![United Airlines logo]()
$913
This Delta deal was found by Cheapflights users on 9/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/195:30 am -
2 stops27h 00m
Tue 5/189:50 am -
2 stops24h 03m
Deal found 9/19![Delta logo]()
$958
This EVA Air deal was found by Cheapflights users on 9/18. 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.
Mon 2/1511:30 pm -
2 stops34h 30m
Thu 2/187:45 am -
2 stops24h 50m
Deal found 9/18![EVA Air logo]()
$1,133
This Emirates deal was found by Cheapflights users on 9/15. 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.
Wed 3/178:45 pm -
1 stop23h 10m
Fri 3/2611:00 pm -
1 stop28h 45m
Deal found 9/15![Emirates logo]()
$1,137
This Cathay Pacific deal was found by Cheapflights users on 9/18. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/45:00 am -
2 stops41h 20m
Wed 11/186:50 pm -
2 stops42h 11m
Deal found 9/18![Multiple Airlines logo]()
$1,141
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Thu 2/114:25 pm -
1 stop23h 45m
Thu 2/259:10 am -
2 stops24h 12m
Deal found 9/15![United Airlines logo]()
$944
This Delta deal was found by Cheapflights users on 9/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/237:00 am -
2 stops28h 20m
Tue 2/29:40 pm -
2 stops31h 57m
Deal found 9/16![Delta logo]()
$959
This Emirates deal was found by Cheapflights users on 9/19. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/147:45 pm -
1 stop35h 25m
Mon 5/1711:10 pm -
1 stop28h 35m
Deal found 9/19![Emirates logo]()
$1,137
This EVA Air deal was found by Cheapflights users on 9/16. 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 1/1711:30 pm -
1 stop22h 05m
Sat 2/67:45 pm -
2 stops36h 50m
Deal found 9/16![EVA Air logo]()
$1,148
This United Airlines deal was found by Cheapflights users on 9/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/253:47 pm -
2 stops30h 43m
Sat 12/54:55 pm -
2 stops31h 52m
Deal found 9/19![United Airlines logo]()
$959
This Delta deal was found by Cheapflights users on 9/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/36:45 pm -
2 stops39h 20m
Mon 12/149:40 pm -
2 stops28h 21m
Deal found 9/19![Delta logo]()
$964
This China Airlines deal was found by Cheapflights users on 9/19. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/110:20 am -
2 stops35h 05m
Wed 3/3111:20 am -
2 stops30h 40m
Deal found 9/19![Multiple Airlines logo]()
$1,202
This Emirates deal was found by Cheapflights users on 9/19. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/157:45 pm -
1 stop23h 10m
Tue 5/1811:10 pm -
1 stop28h 35m
Deal found 9/19![Emirates logo]()
$1,137
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Sun 10/49:45 pm -
2 stops42h 50m
Mon 10/123:45 pm -
3 stops29h 53m
Deal found 9/16![United Airlines logo]()
$962
This Delta deal was found by Cheapflights users on 9/15. 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.
Sat 1/235:35 pm -
2 stops41h 45m
Tue 2/29:40 pm -
2 stops33h 57m
Deal found 9/15![Delta logo]()
$964
This Korean Air deal was found by Cheapflights users on 9/19. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:00 am -
2 stops28h 10m
Tue 9/2911:25 pm -
2 stops36h 17m
Deal found 9/19![Korean Air logo]()
$1,484
This United Airlines deal was found by Cheapflights users on 9/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/251:00 pm -
2 stops33h 30m
Fri 12/254:55 pm -
3 stops27h 57m
Deal found 9/17![United Airlines logo]()
$964
This FlightHub deal was found by Cheapflights users on 9/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:02 am -
2 stops36h 43m
Sat 10/179:35 pm -
2 stops38h 24m
Deal found 9/18![Multiple Airlines logo]()
$1,284
Last-minute flights from Illinois to ThailandDiscover last-minute flight deals from Illinois to Thailand. Data last updated September 20, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Thailand. Data last updated September 20, 2026 and is based on user searches.
This Gotogate deal was found by Cheapflights users on 9/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/171:25 pm -
1 stop36h 55m
Wed 9/309:25 am -
1 stop42h 15m
Deal found 9/16![Etihad Airways logo]()
$767
This Gotogate deal was found by Cheapflights users on 9/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/178:05 pm -
1 stop39h 45m
Thu 9/244:15 pm -
1 stop35h 40m
Deal found 9/16![Etihad Airways logo]()
$787
This oojo deal was found by Cheapflights users on 9/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/212:00 pm -
1 stop28h 45m
Tue 10/139:15 am -
1 stop35h 20m
Deal found 9/17![Etihad Airways logo]()
$828
This FlightHub deal was found by Cheapflights users on 9/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/228:05 pm -
1 stop39h 45m
Mon 9/289:25 am -
1 stop42h 15m
Deal found 9/19![Etihad Airways logo]()
$796
This oojo deal was found by Cheapflights users on 9/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/282:00 pm -
1 stop21h 50m
Sat 10/33:20 am -
1 stop24h 20m
Deal found 9/15![Etihad Airways logo]()
$813
This oojo deal was found by Cheapflights users on 9/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:25 pm -
1 stop27h 45m
Thu 10/292:40 pm -
1 stop30h 15m
Deal found 9/16![Etihad Airways logo]()
$826
This oojo deal was found by Cheapflights users on 9/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/18:25 pm -
2 stops34h 05m
Thu 10/2210:20 am -
2 stops34h 15m
Deal found 9/16![Etihad Airways logo]()
$799
This oojo deal was found by Cheapflights users on 9/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/79:39 am -
2 stops26h 11m
Thu 10/229:55 pm -
2 stops29h 45m
Deal found 9/15![Etihad Airways logo]()
$803
This oojo deal was found by Cheapflights users on 9/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/88:25 pm -
1 stop28h 05m
Thu 10/159:20 pm -
2 stops36h 50m
Deal found 9/18![Etihad Airways logo]()
$816
This oojo deal was found by Cheapflights users on 9/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/142:00 pm -
1 stop40h 20m
Tue 10/2012:55 am -
1 stop43h 40m
Deal found 9/16![Etihad Airways logo]()
$773
This oojo deal was found by Cheapflights users on 9/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/188:25 pm -
1 stop39h 30m
Sun 11/152:40 pm -
1 stop30h 15m
Deal found 9/16![Etihad Airways logo]()
$827
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/292:10 pm -
1 stop21h 40m
Wed 11/49:00 pm -
1 stop23h 55m
Deal found 9/16![Etihad Airways logo]()
$797
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 September 20, 2026.
Search for one-way flight options from Illinois to Thailand. Find affordable one-way fares based on user searches. Data last updated September 20, 2026.
This Booking.com deal was found by Cheapflights users on 9/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/72:00 pm -
1 stop40h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Etihad Airways logo]()
$338
This oojo deal was found by Cheapflights users on 9/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/152:00 pm -
1 stop34h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Etihad Airways logo]()
$343
This Kiwi.com deal was found by Cheapflights users on 9/20. 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.
Fri 10/162:00 pm -
1 stop21h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Etihad Airways logo]()
$416
This Trip.com deal was found by Cheapflights users on 9/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/71:10 pm -
1 stop21h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Etihad Airways logo]()
$417
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/222:00 pm -
1 stop21h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Etihad Airways logo]()
$418
This Justfly.com deal was found by Cheapflights users on 9/18. 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.
Sun 9/278:25 pm -
1 stop33h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Etihad Airways logo]()
$422
This Mytrip deal was found by Cheapflights users on 9/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/132:00 pm -
1 stop21h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Etihad Airways logo]()
$423
This Kiwi.com deal was found by Cheapflights users on 9/20. 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 11/117:15 am -
3 stops49h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Multiple Airlines logo]()
$424
This Etihad Airways deal was found by Cheapflights users on 9/18. 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.
Mon 9/288:25 pm -
1 stop27h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Etihad Airways logo]()
$425
This Kiwi.com deal was found by Cheapflights users on 9/18. 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.
Tue 11/2410:30 pm -
2 stops57h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Multiple Airlines logo]()
$429
This SmartFares deal was found by Cheapflights users on 9/18. 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 11/2310:45 pm -
1 stop21h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Philippine Airlines logo]()
$430
This Trip.com deal was found by Cheapflights users on 9/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/68:25 pm -
2 stops27h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Multiple Airlines logo]()
$431
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 September 20, 2026.
Most accurate provider | Expedia 1 star |
|---|---|
Most trusted provider | Expedia 3 stars |
Round-trip from | $773 (oojo) |
One-way from | $338 (Booking.com) |
Popular in | December |
Cheapest in | April |
Average price | $888 |
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 7,457,451 searches. Data last updated September 20, 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
ChicagoPhuket City
ORD Chicago O'Hare Intl - HKT Phuket City
ORDHKT
Chicago O'Hare Intl
Wed 10/7
2:00 pm-6:20 pm
1 stop40h 20m
Phuket City
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$338
ChicagoPhuket City
ORD Chicago O'Hare Intl - HKT Phuket City
ORDHKT
Chicago O'Hare Intl
Thu 10/15
2:00 pm-12:30 pm
1 stop34h 30m
Phuket City
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$343
Quickest round-trip
ChicagoBangkok
ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi
ORDBKK
Chicago O'Hare Intl
Mon 11/30
10:40 am-10:50 pm
1 stop23h 10m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$456
ChicagoBangkok
ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi
ORDBKK
Chicago O'Hare Intl
Mon 11/23
3:56 pm-11:30 am
3 stops30h 34m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$457
ChicagoBangkok
ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi
ORDBKK
Chicago O'Hare Intl
Tue 11/10
2:00 pm-11:30 am
2 stops32h 30m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$457
ChicagoBangkok
ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi
ORDBKK
Chicago O'Hare Intl
Sun 11/22
9:41 pm-5:10 am
2 stops42h 29m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$458
ChicagoBangkok
ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi
ORDBKK
Chicago O'Hare Intl
Mon 1/4
8:17 pm-12:20 am
2 stops39h 03m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$461
ChicagoBangkok
ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi
ORDBKK
Chicago O'Hare Intl
Fri 9/25
2:00 pm-6:10 pm
1 stop40h 10m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$465
ChicagoBangkok
ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi
ORDBKK
Chicago O'Hare Intl
Thu 1/28
7:00 am-12:20 am
2 stops28h 20m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$480
ChicagoBangkok
MDW Chicago Midway - BKK Bangkok Suvarnabhumi
MDWBKK
Chicago Midway
Mon 11/23
1:05 pm-11:05 pm
2 stops45h 00m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$480
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-HKT
ORD-BKK
MDW-HKT
STL-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-HKT
ORD-BKK
MDW-HKT
STL-BKK
What is the cheapest month to book a flight from Illinois to Thailand?
Currently, February is the cheapest month in which you can book a flight from Illinois to Thailand (average of $892). Flying from Illinois to Thailand in December is currently the most expensive (average of $1,338). 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 September 20, 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 7,457,451 searches. Data last updated September 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$612 | Average$880 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$698 | Average$1,032 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$725 | Average$1,022 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$738 | Average$979 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$749 | Average$1,229 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$776 | Average$1,188 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$779 | Average$1,187 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$790 | Average$1,063 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$792 | Average$1,107 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$804 | Average$1,117 | FlexibilityNo cancel fee | On-time74% |