$532+ 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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BKK
Jul 9 — Jul 161
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 June 9, 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 June 9, 2026.
This KAYAK deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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.
Wed 9/24:00 pm
ORD
- CNX
1 stop38h 40m
Cathay Pacific
Wed 9/97:25 pm
CNX
- ORD
1 stop30h 55m
Cathay Pacific
Deal found 6/4![Cathay Pacific logo]()
$868
This oojo deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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 8/304:00 pm
ORD
- HKT
1 stop30h 50m
Cathay Pacific
Sun 9/1311:50 am
HKT
- ORD
1 stop38h 30m
Cathay Pacific
Deal found 6/7![Cathay Pacific logo]()
$884
This oojo deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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 9/14:00 pm
ORD
- HKT
1 stop30h 50m
Cathay Pacific
Wed 9/236:20 pm
HKT
- ORD
1 stop31h 35m
Cathay Pacific
Deal found 6/4![Cathay Pacific logo]()
$885
This Gotogate deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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.
Mon 9/145:45 pm
ORD
- CNX
2 stops27h 35m
Multiple Airlines
Mon 9/2811:55 am
CNX
- ORD
2 stops32h 45m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$887
This Justfly.com deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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.
Wed 9/25:45 pm
ORD
- CNX
2 stops27h 00m
Multiple Airlines
Wed 9/94:55 pm
CNX
- ORD
2 stops27h 45m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$888
This Gotogate deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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 9/35:45 pm
ORD
- HKT
2 stops27h 50m
Multiple Airlines
Mon 9/79:55 pm
HKT
- ORD
2 stops29h 00m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$902
This Ovago deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/12:35 pm
ORD
- CNX
1 stop39h 15m
Cathay Pacific
Tue 11/1010:35 am
CNX
- ORD
1 stop39h 20m
Cathay Pacific
Deal found 6/4![Cathay Pacific logo]()
$914
This Cathay Pacific deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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.
Tue 9/294:15 pm
ORD
- HKT
1 stop30h 35m
Cathay Pacific
Sat 10/311:50 am
HKT
- ORD
1 stop38h 05m
Cathay Pacific
Deal found 6/4![Cathay Pacific logo]()
$919
This KAYAK deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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.
Sun 9/64:00 pm
ORD
- CNX
1 stop38h 40m
Cathay Pacific
Sun 9/207:25 pm
CNX
- ORD
1 stop30h 30m
Cathay Pacific
Deal found 6/7![Cathay Pacific logo]()
$919
This Orbitz deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/285:45 pm
ORD
- CNX
2 stops29h 30m
Multiple Airlines
Mon 11/210:10 am
CNX
- ORD
2 stops34h 10m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$922
This KAYAK deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” 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 9/155:45 pm
ORD
- HKT
2 stops27h 50m
Multiple Airlines
Tue 9/299:55 pm
HKT
- ORD
2 stops29h 00m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$926
This KAYAK deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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 9/15:45 pm
ORD
- HKT
2 stops27h 50m
Multiple Airlines
Wed 9/239:55 pm
HKT
- ORD
2 stops29h 00m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$927
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 June 9, 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 June 9, 2026.
This Justfly.com deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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.
Wed 9/25:45 pm
ORD
- CNX
2 stops27h 00m
Multiple Airlines
Wed 9/94:55 pm
CNX
- ORD
2 stops27h 45m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$888
This oojo deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” 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 11/1110:06 am
PIA
- BKK
2 stops31h 29m
Etihad Airways
Wed 12/28:50 pm
BKK
- PIA
2 stops34h 18m
Etihad Airways
Deal found 6/9![Etihad Airways logo]()
$1,014
This Delta deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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 9/35:10 pm
MDW
- HKT
2 stops41h 00m
Delta
Mon 9/711:25 pm
HKT
- MDW
2 stops25h 05m
Delta
Deal found 6/4![Delta logo]()
$1,022
This United Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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.
Sat 11/219:30 pm
ORD
- BKK
2 stops42h 40m
United Airlines
Mon 11/307:10 am
BKK
- ORD
1 stop19h 40m
United Airlines
Deal found 6/5![United Airlines logo]()
$1,143
This Turkish Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 12/511:45 am
ORD
- BKK
1 stop28h 35m
Turkish Airlines
Tue 12/156:10 am
BKK
- ORD
1 stop40h 50m
Turkish Airlines
Deal found 6/5![Turkish Airlines logo]()
$1,164
This EVA Air deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” 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 9/512:30 am
ORD
- CNX
1 stop21h 55m
EVA Air
Thu 9/1011:35 am
CNX
- ORD
1 stop21h 10m
EVA Air
Deal found 6/6![EVA Air logo]()
$1,234
This Qatar Airways deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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.
Mon 9/77:20 pm
ORD
- CNX
2 stops26h 00m
Qatar Airways
Tue 9/158:00 pm
CNX
- ORD
2 stops31h 05m
Qatar Airways
Deal found 6/7![Qatar Airways logo]()
$1,277
This Finnair deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/259:30 pm
ORD
- BKK
1 stop44h 00m
Finnair
Sat 7/257:05 am
BKK
- ORD
1 stop22h 45m
Finnair
Deal found 6/5![Finnair logo]()
$1,297
This Emirates deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 10/208:35 pm
ORD
- DMK
1 stop26h 35m
Emirates
Wed 11/1110:55 pm
DMK
- ORD
1 stop29h 00m
Emirates
Deal found 6/8![Emirates logo]()
$1,375
This Korean Air deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 9/279:49 am
MDW
- BKK
2 stops39h 46m
Korean Air
Thu 10/19:50 am
BKK
- MDW
2 stops38h 44m
Korean Air
Deal found 6/8![Korean Air logo]()
$1,401
This Delta deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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 9/37:00 am
ORD
- HKT
2 stops27h 10m
Delta
Mon 9/711:25 pm
HKT
- ORD
1 stop22h 05m
Delta
Deal found 6/4![Delta logo]()
$1,062
This Orbitz deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/305:45 pm
ORD
- CNX
2 stops29h 30m
Multiple Airlines
Sat 9/58:00 pm
CNX
- ORD
2 stops30h 55m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$1,070
This oojo deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” 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 7/248:25 pm
ORD
- CNX
2 stops48h 55m
Etihad Airways
Sat 9/1910:10 am
CNX
- ORD
2 stops41h 30m
Etihad Airways
Deal found 6/6![Etihad Airways logo]()
$1,129
This United Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 10/137:00 am
ORD
- BKK
2 stops33h 35m
United Airlines
Tue 10/203:45 pm
BKK
- ORD
3 stops27h 40m
United Airlines
Deal found 6/8![United Airlines logo]()
$1,152
This Delta deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” 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 8/295:30 am
ORD
- HKT
2 stops28h 40m
Delta
Sun 9/2711:25 pm
HKT
- ORD
2 stops31h 20m
Delta
Deal found 6/6![Delta logo]()
$1,111
This United Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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 6/257:00 am
ORD
- BKK
2 stops33h 35m
United Airlines
Thu 7/29:35 am
BKK
- ORD
2 stops25h 47m
United Airlines
Deal found 6/7![United Airlines logo]()
$1,152
This Qatar Airways deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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 9/67:20 pm
ORD
- CNX
2 stops30h 25m
Qatar Airways
Thu 9/108:00 pm
CNX
- ORD
2 stops31h 05m
Qatar Airways
Deal found 6/4![Qatar Airways logo]()
$1,277
This Finnair deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/279:30 pm
ORD
- BKK
1 stop44h 00m
Finnair
Tue 7/77:05 am
BKK
- ORD
1 stop22h 45m
Finnair
Deal found 6/6![Finnair logo]()
$1,297
This Delta deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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.
Sun 10/46:05 am
MDW
- BKK
2 stops31h 00m
Delta
Thu 10/159:50 am
BKK
- MDW
2 stops23h 55m
Delta
Deal found 6/4![Delta logo]()
$1,121
This Emirates deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 10/218:35 pm
ORD
- DMK
1 stop26h 35m
Emirates
Mon 11/910:55 pm
DMK
- ORD
1 stop29h 00m
Emirates
Deal found 6/8![Emirates logo]()
$1,375
This China Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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.
Sat 8/87:56 pm
STL
- BKK
2 stops28h 14m
Multiple Airlines
Tue 8/182:40 am
BKK
- STL
2 stops31h 55m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$1,308
This United Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/276:15 pm
ORD
- BKK
2 stops28h 10m
United Airlines
Sat 12/194:55 pm
BKK
- ORD
2 stops32h 13m
United Airlines
Deal found 6/8![United Airlines logo]()
$1,212
This Qatar Airways deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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
ORD
- UTP
2 stops33h 30m
Qatar Airways
Fri 9/181:00 pm
UTP
- ORD
2 stops38h 05m
Qatar Airways
Deal found 6/7![Qatar Airways logo]()
$1,355
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2010:35 am
MDW
- BKK
2 stops49h 10m
Delta
Wed 12/911:15 pm
BKK
- MDW
2 stops26h 18m
Delta
Deal found 6/8![Delta logo]()
$1,127
This Emirates deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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 8/268:35 pm
ORD
- DMK
1 stop26h 50m
Emirates
Wed 9/1611:50 pm
DMK
- ORD
1 stop27h 55m
Emirates
Deal found 6/4![Emirates logo]()
$1,375
This Etihad Airways deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” 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.
Sun 9/279:10 pm
ORD
- UTP
2 stops31h 40m
Etihad Airways
Thu 10/11:00 pm
UTP
- ORD
2 stops38h 40m
Etihad Airways
Deal found 6/6![Etihad Airways logo]()
$1,427
This Booking.com deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 8/174:00 pm
ORD
- CNX
1 stop38h 40m
Multiple Airlines
Sat 8/222:30 pm
CNX
- ORD
2 stops29h 15m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$1,347
This Qatar Airways deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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
ORD
- UTP
2 stops33h 30m
Qatar Airways
Mon 9/211:00 pm
UTP
- ORD
2 stops38h 05m
Qatar Airways
Deal found 6/7![Qatar Airways logo]()
$1,355
This United Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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.
Sat 10/175:51 pm
ORD
- BKK
3 stops27h 44m
United Airlines
Sat 10/243:45 pm
BKK
- ORD
2 stops25h 30m
United Airlines
Deal found 6/4![United Airlines logo]()
$1,232
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/111:05 pm
MDW
- BKK
2 stops35h 20m
Delta
Wed 11/259:30 pm
BKK
- MDW
2 stops28h 03m
Delta
Deal found 6/8![Delta logo]()
$1,128
Last-minute flights from Illinois to ThailandDiscover last-minute flight deals from Illinois to Thailand. Data last updated June 9, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Thailand. Data last updated June 9, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 6/95:30 am
ORD
- BKK
2 stops30h 05m
Delta
Mon 6/152:35 am
BKK
- ORD
2 stops30h 50m
Delta
Deal found 6/8![Delta logo]()
$1,133
This United Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 6/912:15 pm
ORD
- BKK
1 stop28h 20m
United Airlines
Tue 7/77:00 am
BKK
- ORD
1 stop19h 55m
United Airlines
Deal found 6/8![United Airlines logo]()
$1,139
This lastminute.com deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/2412:15 pm
ORD
- BKK
1 stop28h 20m
ANA
Wed 7/17:00 am
BKK
- ORD
1 stop19h 55m
ANA
Deal found 6/8![ANA logo]()
$1,123
This oojo deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” 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 7/64:00 pm
ORD
- BKK
1 stop20h 10m
Cathay Pacific
Sun 9/612:35 pm
BKK
- ORD
1 stop37h 45m
Cathay Pacific
Deal found 6/9![Cathay Pacific logo]()
$1,129
This United Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 7/87:00 am
ORD
- BKK
2 stops33h 35m
United Airlines
Tue 7/149:35 am
BKK
- ORD
2 stops25h 47m
United Airlines
Deal found 6/8![United Airlines logo]()
$1,138
This FlightHub deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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.
Thu 7/98:10 am
ORD
- BKK
2 stops32h 30m
Japan Airlines
Sun 8/307:55 am
BKK
- ORD
1 stop35h 50m
Japan Airlines
Deal found 6/5![Japan Airlines logo]()
$1,132
This United Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/108:18 pm
ORD
- BKK
2 stops25h 17m
United Airlines
Tue 10/67:00 am
BKK
- ORD
1 stop19h 55m
United Airlines
Deal found 6/7![United Airlines logo]()
$1,118
This oojo deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” 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 7/108:10 am
ORD
- BKK
2 stops43h 00m
Japan Airlines
Tue 10/69:40 pm
BKK
- ORD
2 stops36h 50m
Japan Airlines
Deal found 6/9![Japan Airlines logo]()
$1,124
This United Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 7/128:18 pm
ORD
- BKK
2 stops25h 17m
United Airlines
Thu 7/167:00 am
BKK
- ORD
2 stops30h 15m
United Airlines
Deal found 6/5![United Airlines logo]()
$1,128
This Delta deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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 7/177:05 am
ORD
- BKK
2 stops26h 40m
Delta
Wed 7/229:50 am
BKK
- ORD
2 stops25h 48m
Delta
Deal found 6/7![Delta logo]()
$1,119
This oojo deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” 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 7/248:25 pm
ORD
- CNX
2 stops48h 55m
Etihad Airways
Sat 9/1910:10 am
CNX
- ORD
2 stops41h 30m
Etihad Airways
Deal found 6/6![Etihad Airways logo]()
$1,129
This Delta deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” 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 7/296:00 am
MDW
- HKT
2 stops28h 10m
Delta
Tue 8/2511:25 pm
HKT
- MDW
2 stops35h 11m
Delta
Deal found 6/6![Delta logo]()
$1,191
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 June 9, 2026.
Search for one-way flight options from Illinois to Thailand. Find affordable one-way fares based on user searches. Data last updated June 9, 2026.
This IEagle deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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.
Mon 8/317:20 pm
ORD
- HKT
1 stop24h 25m
Qatar Airways
Deal found 6/4![Qatar Airways logo]()
$532
This oojo deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 8/132:00 pm
ORD
- HKT
1 stop21h 50m
Etihad Airways
Deal found 6/8![Etihad Airways logo]()
$551
This FlightHub deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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.
Wed 8/127:20 pm
ORD
- BKK
1 stop23h 00m
Qatar Airways
Deal found 6/8![Qatar Airways logo]()
$563
This oojo deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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 8/317:00 am
ORD
- HKT
2 stops28h 50m
Etihad Airways
Deal found 6/4![Etihad Airways logo]()
$564
This Booking.com deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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 11/911:15 am
ORD
- BKK
1 stop37h 10m
Korean Air
Deal found 6/7![Korean Air logo]()
$568
This Justfly.com deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” 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.
Tue 8/117:20 pm
ORD
- BKK
1 stop23h 55m
Qatar Airways
Deal found 6/6![Qatar Airways logo]()
$569
This IEagle deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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.
Sat 8/297:20 pm
ORD
- HKT
1 stop24h 25m
Qatar Airways
Deal found 6/4![Qatar Airways logo]()
$570
This oojo deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 7/89:00 am
ORD
- BKK
2 stops31h 40m
Japan Airlines
Deal found 6/8![Japan Airlines logo]()
$571
This Kiwi.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 11/1111:06 am
ORD
- BKK
3 stops45h 44m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$572
This Kiwi.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 9/19:48 pm
ORD
- BKK
3 stops48h 52m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$573
This Kiwi.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 8/109:57 pm
ORD
- BKK
3 stops50h 13m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$574
This KAYAK deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 8/114:00 pm
ORD
- CNX
1 stop38h 40m
Cathay Pacific
Deal found 6/8![Cathay Pacific logo]()
$574
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 June 9, 2026.
Round-trip from | $868 (KAYAK) |
|---|---|
One-way from | $532 (IEagle) |
Popular in | December |
Cheapest in | September |
Average price | $1,229 |
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 June 9, 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 - CNX
ORDCNX
Chicago O'Hare Intl
Wed 9/2
5:45 pm-8:45 am
2 stops27h 00m
Chiang Mai
Wed 9/9
4:55 pm-8:40 am
2 stops27h 45m
$888
PeoriaBangkok
PIA - BKK
PIABKK
Greater Peoria
Wed 11/11
10:06 am-6:35 am
2 stops31h 29m
Bangkok Suvarnabhumi
Wed 12/2
8:50 pm-6:08 pm
2 stops34h 18m
$1,014
ChicagoPhuket City
MDW - HKT
MDWHKT
Chicago Midway
Thu 9/3
5:10 pm-10:10 pm
2 stops41h 00m
Phuket City
Mon 9/7
11:25 pm-12:30 pm
2 stops25h 05m
$1,022
ChicagoPhuket City
ORD - HKT
ORDHKT
Chicago O'Hare Intl
Thu 9/3
7:00 am-10:10 pm
2 stops27h 10m
Phuket City
Mon 9/7
11:25 pm-9:30 am
1 stop22h 05m
$1,062
ChicagoChiang Mai
ORD - CNX
ORDCNX
Chicago O'Hare Intl
Sun 8/30
5:45 pm-11:15 am
2 stops29h 30m
Chiang Mai
Sat 9/5
8:00 pm-2:55 pm
2 stops30h 55m
$1,070
ChicagoPhuket City
ORD - HKT
ORDHKT
Chicago O'Hare Intl
Sat 8/29
5:30 am-10:10 pm
2 stops28h 40m
Phuket City
Sun 9/27
11:25 pm-6:45 pm
2 stops31h 20m
$1,111
ChicagoBangkok
MDW - BKK
MDWBKK
Chicago Midway
Sun 10/4
6:05 am-1:05 am
2 stops31h 00m
Bangkok Suvarnabhumi
Thu 10/15
9:50 am-9:45 pm
2 stops23h 55m
$1,121
ChicagoBangkok
MDW - BKK
MDWBKK
Chicago Midway
Fri 11/20
10:35 am-12:45 am
2 stops49h 10m
Bangkok Suvarnabhumi
Wed 12/9
11:15 pm-12:33 pm
2 stops26h 18m
$1,127
ChicagoBangkok
MDW - BKK
MDWBKK
Chicago Midway
Wed 11/11
1:05 pm-1:25 pm
2 stops35h 20m
Bangkok Suvarnabhumi
Wed 11/25
9:30 pm-12:33 pm
2 stops28h 03m
$1,128
ChicagoChiang Mai
ORD - CNX
ORDCNX
Chicago O'Hare Intl
Fri 7/24
8:25 pm-9:20 am
2 stops48h 55m
Chiang Mai
Sat 9/19
10:10 am-3:40 pm
2 stops41h 30m
$1,129
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
MDW-HKT
PIA-BKK
ORD-DMK
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
MDW-HKT
PIA-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 $881). Flying from Illinois to Thailand in July is currently the most expensive (average of $2,631). 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.
Alternative routes
Complete your trip
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Other flight options
Popular flights
Return Flight Options
Top destinations
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 June 9, 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 June 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$606 | Average$873 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$665 | Average$1,137 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$680 | Average$1,074 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$697 | Average$911 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$702 | Average$1,150 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$710 | Average$1,012 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$749 | Average$1,352 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$790 | Average$1,134 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$805 | Average$1,137 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$815 | Average$969 | FlexibilityNo cancel fee | On-time79% |