$390+ 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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BKK
Nov 14 — Nov 211
Round-trip
1 adult, Economy
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Find cheap flights from Illinois to Thailand 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 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 October 15, 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 October 15, 2026.
This lol.travel deal was found by Cheapflights users on 10/14. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/191:20 pm -
1 stop41h 00m
Mon 11/23:30 pm -
1 stop29h 05m
Deal found 10/14![Etihad Airways logo]()
$795
This IEagle deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” 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.
Sun 11/81:15 pm -
1 stop33h 45m
Tue 11/173:30 pm -
1 stop29h 05m
Deal found 10/13![Etihad Airways logo]()
$805
This oojo deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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 10/131:20 pm -
1 stop40h 50m
Wed 11/117:55 pm -
1 stop24h 40m
Deal found 10/10![Etihad Airways logo]()
$844
This Etihad Airways deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” 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 10/198:05 pm -
1 stop40h 50m
Tue 10/272:40 pm -
1 stop29h 55m
Deal found 10/12![Etihad Airways logo]()
$845
This IEagle deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” 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.
Sun 11/81:15 pm -
1 stop33h 45m
Sun 11/153:30 pm -
1 stop29h 05m
Deal found 10/13![Etihad Airways logo]()
$845
This Kiwi.com deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” 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 10/131:20 pm -
1 stop36h 20m
Sun 11/227:55 pm -
1 stop24h 40m
Deal found 10/11![Etihad Airways logo]()
$846
This Kiwi.com deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” 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 10/171:20 pm -
1 stop22h 35m
Sun 11/227:55 pm -
1 stop24h 40m
Deal found 10/11![Etihad Airways logo]()
$850
This Justfly.com deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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.
Mon 11/92:10 pm -
1 stop21h 05m
Mon 11/168:30 am -
1 stop36h 05m
Deal found 10/10![Multiple Airlines logo]()
$851
This Kiwi.com deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” 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 10/182:00 pm -
1 stop21h 55m
Wed 11/257:55 pm -
1 stop24h 40m
Deal found 10/11![Etihad Airways logo]()
$853
This IEagle deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” 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 11/129:45 am -
1 stop37h 45m
Thu 11/191:35 am -
2 stops43h 05m
Deal found 10/13![Ethiopian Air logo]()
$855
This oojo deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” 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 10/293:10 pm -
1 stop34h 55m
Thu 11/197:30 am -
1 stop18h 00m
Deal found 10/11![Cathay Pacific logo]()
$857
This Kiwi.com deal was found by Cheapflights users on 10/14. 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.
Mon 11/92:10 pm -
1 stop21h 05m
Wed 11/187:55 pm -
1 stop24h 40m
Deal found 10/14![Multiple Airlines logo]()
$862
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 October 15, 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 October 15, 2026.
This Delta deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” 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 1/255:35 pm -
2 stops38h 55m
Tue 2/21:05 am -
2 stops34h 05m
Deal found 10/12![Delta logo]()
$900
This Ethiopian Air deal was found by Cheapflights users on 10/14. 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 Ethiopian Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2810:15 am -
1 stop38h 15m
Tue 11/101:35 am -
2 stops43h 05m
Deal found 10/14![Ethiopian Air logo]()
$905
This Cathay Pacific deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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.
Sun 11/82:10 pm -
1 stop40h 25m
Thu 11/1211:40 am -
1 stop37h 50m
Deal found 10/10![Cathay Pacific logo]()
$948
This Booking.com deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” 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.
Mon 3/12:10 pm -
2 stops28h 00m
Wed 3/1011:40 am -
1 stop37h 50m
Deal found 10/12![Multiple Airlines logo]()
$1,008
This Oman Air deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Oman Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/56:50 pm -
2 stops33h 25m
Sat 3/139:00 am -
2 stops43h 05m
Deal found 10/13![Oman Air logo]()
$1,018
This United Airlines deal was found by Cheapflights users on 10/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/262:30 pm -
3 stops33h 00m
Mon 11/99:10 am -
1 stop19h 00m
Deal found 10/14![United Airlines logo]()
$1,023
This Korean Air deal was found by Cheapflights users on 10/14. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/911:10 am -
1 stop22h 35m
Wed 11/1112:20 am -
1 stop21h 10m
Deal found 10/14![Korean Air logo]()
$1,048
This KAYAK deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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.
Tue 1/51:15 pm -
2 stops38h 35m
Thu 1/211:00 pm -
2 stops31h 35m
Deal found 10/10![Etihad Airways logo]()
$1,091
This EVA Air deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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 2/1711:30 pm -
2 stops31h 10m
Sun 2/2110:00 pm -
2 stops34h 35m
Deal found 10/10![EVA Air logo]()
$1,092
This Emirates deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” 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 3/158:45 pm -
1 stop23h 25m
Fri 3/1911:00 pm -
1 stop29h 00m
Deal found 10/12![Emirates logo]()
$1,137
This Qatar Airways deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” 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 1/36:00 am -
2 stops35h 50m
Sat 3/612:25 am -
1 stop27h 05m
Deal found 10/13![Qatar Airways logo]()
$1,245
This Turkish Airlines deal was found by Cheapflights users on 10/14. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/319:15 pm -
1 stop30h 35m
Thu 11/1910:20 am -
2 stops36h 40m
Deal found 10/14![Turkish Airlines logo]()
$1,287
This Delta deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” 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 2/96:30 am -
2 stops26h 00m
Sun 2/219:50 am -
1 stop35h 40m
Deal found 10/11![Delta logo]()
$934
This oojo deal was found by Cheapflights users on 10/14. 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.
Tue 11/242:10 pm -
1 stop40h 25m
Tue 12/811:40 am -
1 stop37h 50m
Deal found 10/14![Cathay Pacific logo]()
$989
This United Airlines deal was found by Cheapflights users on 10/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/288:05 pm -
2 stops27h 25m
Thu 11/129:10 am -
2 stops24h 12m
Deal found 10/14![United Airlines logo]()
$1,029
This Delta deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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 2/105:30 am -
2 stops29h 50m
Sun 2/2111:15 pm -
2 stops27h 05m
Deal found 10/10![Delta logo]()
$944
This Philippine Airlines deal was found by Cheapflights users on 10/14. 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 Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:29 am -
2 stops27h 16m
Fri 11/209:55 am -
2 stops25h 36m
Deal found 10/14![Multiple Airlines logo]()
$1,072
This EVA Air deal was found by Cheapflights users on 10/14. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/1511:30 pm -
2 stops31h 10m
Thu 2/189:35 am -
2 stops23h 00m
Deal found 10/14![EVA Air logo]()
$1,092
This United Airlines deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” 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 11/910:30 am -
1 stop24h 50m
Mon 11/234:55 pm -
2 stops25h 25m
Deal found 10/12![United Airlines logo]()
$1,037
This Delta deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” 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 2/175:30 am -
2 stops28h 15m
Tue 3/212:20 am -
2 stops35h 00m
Deal found 10/13![Delta logo]()
$944
This Gotogate deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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.
Sun 1/171:15 pm -
2 stops38h 35m
Sat 1/231:00 pm -
3 stops31h 35m
Deal found 10/10![Etihad Airways logo]()
$1,155
This Emirates deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” 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.
Thu 3/188:45 pm -
1 stop23h 25m
Fri 3/2611:00 pm -
1 stop29h 00m
Deal found 10/11![Emirates logo]()
$1,187
This KAYAK deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” 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.
Thu 1/142:10 pm -
1 stop40h 25m
Thu 1/218:20 pm -
2 stops29h 10m
Deal found 10/13![Multiple Airlines logo]()
$1,105
This Globehunters deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Globehunters is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/152:10 pm -
1 stop40h 25m
Sat 11/2811:40 am -
1 stop37h 50m
Deal found 10/10![Cathay Pacific logo]()
$1,115
This Qatar Airways deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” 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.
Wed 1/66:50 pm -
1 stop23h 00m
Sun 3/74:55 pm -
2 stops34h 35m
Deal found 10/13![Qatar Airways logo]()
$1,246
This Delta deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” 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 1/276:30 am -
2 stops27h 15m
Tue 2/212:20 am -
2 stops36h 26m
Deal found 10/13![Delta logo]()
$944
This United Airlines deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” 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 11/115:52 pm -
2 stops28h 38m
Wed 12/164:55 pm -
2 stops26h 32m
Deal found 10/12![United Airlines logo]()
$1,039
This EVA Air deal was found by Cheapflights users on 10/14. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/2111:30 pm -
1 stop22h 05m
Sun 1/245:10 pm -
2 stops39h 25m
Deal found 10/14![EVA Air logo]()
$1,168
This Emirates deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” 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.
Thu 1/287:45 pm -
1 stop23h 25m
Thu 2/1111:00 pm -
1 stop29h 10m
Deal found 10/13![Emirates logo]()
$1,187
This Etihad Airways deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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 11/34:31 pm -
2 stops24h 54m
Wed 11/119:10 am -
1 stop35h 25m
Deal found 10/10![Multiple Airlines logo]()
$1,124
Last-minute flights from Illinois to ThailandDiscover last-minute flight deals from Illinois to Thailand. Data last updated October 15, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Thailand. Data last updated October 15, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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.
Fri 10/161:20 pm -
1 stop23h 35m
Fri 10/233:55 pm -
1 stop28h 40m
Deal found 10/10![Etihad Airways logo]()
$844
This Kiwi.com deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” 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 10/171:20 pm -
1 stop22h 35m
Mon 11/237:55 pm -
1 stop24h 40m
Deal found 10/11![Etihad Airways logo]()
$850
This Kiwi.com deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” 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 10/182:00 pm -
1 stop21h 55m
Wed 11/257:55 pm -
1 stop24h 40m
Deal found 10/11![Etihad Airways logo]()
$853
This lol.travel deal was found by Cheapflights users on 10/14. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/191:20 pm -
1 stop41h 00m
Mon 11/23:30 pm -
1 stop29h 05m
Deal found 10/14![Etihad Airways logo]()
$795
This Etihad Airways deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” 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 10/198:05 pm -
1 stop40h 50m
Tue 10/272:40 pm -
1 stop29h 55m
Deal found 10/12![Etihad Airways logo]()
$845
This oojo deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” 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 10/293:10 pm -
1 stop32h 50m
Thu 11/57:30 am -
1 stop18h 00m
Deal found 10/11![Cathay Pacific logo]()
$857
This oojo deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” 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 10/293:10 pm -
1 stop34h 55m
Thu 11/197:30 am -
1 stop18h 00m
Deal found 10/13![Cathay Pacific logo]()
$865
This IEagle deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” 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.
Sun 11/81:15 pm -
1 stop33h 45m
Tue 11/173:30 pm -
1 stop29h 05m
Deal found 10/13![Etihad Airways logo]()
$805
This IEagle deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” 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.
Sun 11/81:15 pm -
1 stop33h 45m
Sun 11/153:30 pm -
1 stop29h 05m
Deal found 10/13![Etihad Airways logo]()
$845
This Justfly.com deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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.
Mon 11/92:10 pm -
1 stop21h 05m
Mon 11/168:30 am -
1 stop36h 05m
Deal found 10/10![Multiple Airlines logo]()
$851
This Kiwi.com deal was found by Cheapflights users on 10/14. 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.
Mon 11/92:10 pm -
1 stop21h 05m
Wed 11/187:55 pm -
1 stop24h 40m
Deal found 10/14![Multiple Airlines logo]()
$862
This IEagle deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” 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 11/129:45 am -
1 stop37h 45m
Thu 11/191:35 am -
2 stops43h 05m
Deal found 10/13![Ethiopian Air logo]()
$855
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 October 15, 2026.
Search for one-way flight options from Illinois to Thailand. Find affordable one-way fares based on user searches. Data last updated October 15, 2026.
This IEagle deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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.
Wed 10/212:00 pm -
1 stop40h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/10![Etihad Airways logo]()
$390
This Kiwi.com deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” 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 3/36:21 am -
3 stops50h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Multiple Airlines logo]()
$424
This oojo deal was found by Cheapflights users on 10/14. 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.
Thu 1/212:10 pm -
1 stop36h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Cathay Pacific logo]()
$426
This Kiwi.com deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” 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 10/201:20 pm -
1 stop40h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Etihad Airways logo]()
$427
This Kiwi.com deal was found by Cheapflights users on 10/14. 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.
Thu 10/228:05 pm -
1 stop40h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Etihad Airways logo]()
$428
This Ticket deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/292:10 pm -
1 stop37h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Cathay Pacific logo]()
$430
This oojo deal was found by Cheapflights users on 10/14. 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 2/1510:45 pm -
1 stop24h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Philippine Airlines logo]()
$432
This Etihad Airways deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” 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 1/281:15 pm -
1 stop29h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Etihad Airways logo]()
$435
This oojo deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” 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.
Sat 11/71:15 pm -
1 stop21h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Etihad Airways logo]()
$436
This oojo deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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 11/92:10 pm -
1 stop34h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/10![Cathay Pacific logo]()
$440
This IEagle deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” 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.
Fri 10/231:20 pm -
1 stop23h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Etihad Airways logo]()
$444
This Kiwi.com deal was found by Cheapflights users on 10/15. 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.
Tue 2/161:15 pm -
1 stop21h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Etihad Airways logo]()
$445
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 October 15, 2026.
Most accurate provider | Expedia 1 star |
|---|---|
Most trusted provider | Expedia 3 stars |
Round-trip from | $805 (IEagle) |
One-way from | $390 (IEagle) |
Popular in | December |
Cheapest in | April |
Average price | $940 |
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 October 15, 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
ChicagoBangkok
ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi
ORDBKK
Chicago O'Hare Intl
Thu 1/28
6:30 am-12:20 am
2 stops28h 50m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$454
ChicagoBangkok
ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi
ORDBKK
Chicago O'Hare Intl
Mon 1/25
7:00 am-11:05 pm
2 stops27h 05m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$454
ChicagoBangkok
MDW Chicago Midway - BKK Bangkok Suvarnabhumi
MDWBKK
Chicago Midway
Mon 3/1
6:00 am-9:30 pm
2 stops26h 30m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$454
ChicagoBangkok
MDW Chicago Midway - BKK Bangkok Suvarnabhumi
MDWBKK
Chicago Midway
Mon 2/22
6:00 am-11:05 pm
2 stops28h 05m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$454
ChicagoChiang Mai
ORD Chicago O'Hare Intl - CNX Chiang Mai
ORDCNX
Chicago O'Hare Intl
Tue 10/27
6:35 am-10:45 pm
2 stops28h 10m
Chiang Mai
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$456
ChicagoChiang Mai
ORD Chicago O'Hare Intl - CNX Chiang Mai
ORDCNX
Chicago O'Hare Intl
Mon 10/26
8:29 am-10:45 pm
2 stops26h 16m
Chiang Mai
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$456
ChicagoChiang Mai
MDW Chicago Midway - CNX Chiang Mai
MDWCNX
Chicago Midway
Tue 10/27
10:59 am-10:45 pm
2 stops47h 46m
Chiang Mai
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$456
Quickest round-trip
ChicagoChiang Mai
MDW Chicago Midway - CNX Chiang Mai
MDWCNX
Chicago Midway
Mon 10/26
9:29 am-10:45 pm
2 stops25h 16m
Chiang Mai
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$456
ChicagoChiang Mai
MDW Chicago Midway - CNX Chiang Mai
MDWCNX
Chicago Midway
Wed 10/28
6:04 am-10:45 pm
2 stops28h 41m
Chiang Mai
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$456
ChicagoChiang Mai
MDW Chicago Midway - CNX Chiang Mai
MDWCNX
Chicago Midway
Thu 10/29
9:29 am-10:45 pm
2 stops25h 16m
Chiang Mai
Wed 12/31
12:00 am-11:00 am
Nonstop0h 00m
$456
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-USM
ORD-HKT
ORD-CNX
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-USM
ORD-HKT
ORD-CNX
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 $897). Flying from Illinois to Thailand in December is currently the most expensive (average of $1,352). 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 86 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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Complete your trip
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Top regions
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 October 15, 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 October 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$612 | Average$897 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$680 | Average$1,229 | FlexibilityNo cancel fee | On-time60% | |
| Cheapest$734 | Average$1,018 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$768 | Average$1,062 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$789 | Average$1,192 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$790 | Average$1,004 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$791 | Average$985 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$792 | Average$1,193 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$802 | Average$1,119 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$823 | Average$1,325 | FlexibilityNo cancel fee | On-time67% |