$452+ 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
Aug 9 — Aug 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 July 10, 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 July 10, 2026.
This KAYAK deal was found by Cheapflights users on 7/7. 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 10/114:15 pm
ORD
- CNX
1 stop29h 30m
Cathay Pacific
Wed 10/217:25 pm
CNX
- ORD
1 stop30h 30m
Cathay Pacific
Deal found 7/7![Cathay Pacific logo]()
$864
This oojo deal was found by Cheapflights users on 7/8. 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.
Tue 8/114:00 pm
ORD
- HKT
1 stop30h 50m
Cathay Pacific
Tue 9/811:50 am
HKT
- ORD
1 stop38h 30m
Cathay Pacific
Deal found 7/8![Cathay Pacific logo]()
$873
This oojo deal was found by Cheapflights users on 7/8. 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.
Tue 9/154:00 pm
ORD
- HKT
1 stop30h 50m
Cathay Pacific
Tue 9/2211:50 am
HKT
- ORD
1 stop38h 05m
Cathay Pacific
Deal found 7/8![Cathay Pacific logo]()
$875
This oojo deal was found by Cheapflights users on 7/6. 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.
Sun 10/44:15 pm
ORD
- HKT
1 stop30h 35m
Cathay Pacific
Mon 10/126:20 pm
HKT
- ORD
1 stop31h 35m
Cathay Pacific
Deal found 7/6![Cathay Pacific logo]()
$877
This Rumbo deal was found by Cheapflights users on 7/8. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/204:00 pm
ORD
- HKT
1 stop30h 50m
Cathay Pacific
Sat 9/511:50 am
HKT
- ORD
1 stop38h 30m
Cathay Pacific
Deal found 7/8![Cathay Pacific logo]()
$879
This Justfly.com deal was found by Cheapflights users on 7/8. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/104:00 pm
ORD
- HKT
1 stop37h 20m
Cathay Pacific
Tue 9/811:50 am
HKT
- ORD
1 stop38h 30m
Cathay Pacific
Deal found 7/8![Cathay Pacific logo]()
$887
This Kiwi.com deal was found by Cheapflights users on 7/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/34:00 pm
ORD
- HKT
1 stop30h 50m
Cathay Pacific
Sun 9/1311:50 am
HKT
- ORD
1 stop38h 30m
Cathay Pacific
Deal found 7/9![Cathay Pacific logo]()
$898
This Kiwi.com deal was found by Cheapflights users on 7/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/114:00 pm
ORD
- HKT
1 stop30h 50m
Cathay Pacific
Wed 9/911:50 am
HKT
- ORD
1 stop38h 30m
Cathay Pacific
Deal found 7/6![Cathay Pacific logo]()
$900
This Gotogate deal was found by Cheapflights users on 7/8. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/252:10 pm
ORD
- CNX
1 stop27h 55m
Etihad Airways
Tue 11/108:50 am
CNX
- ORD
1 stop36h 05m
Etihad Airways
Deal found 7/8![Etihad Airways logo]()
$904
This KAYAK deal was found by Cheapflights users on 7/8. 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.
Sun 10/114:15 pm
ORD
- HKT
1 stop30h 35m
Cathay Pacific
Wed 10/286:35 pm
HKT
- ORD
1 stop31h 20m
Cathay Pacific
Deal found 7/8![Cathay Pacific logo]()
$910
This Korean Air deal was found by Cheapflights users on 7/5. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2612:15 pm
ORD
- CNX
1 stop22h 40m
Korean Air
Mon 11/912:15 am
CNX
- ORD
1 stop21h 15m
Korean Air
Deal found 7/5![Korean Air logo]()
$910
This Expedia deal was found by Cheapflights users on 7/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:45 pm
ORD
- HKT
2 stops30h 25m
Multiple Airlines
Wed 8/262:45 pm
HKT
- ORD
2 stops29h 55m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$912
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 July 10, 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 July 10, 2026.
This Expedia deal was found by Cheapflights users on 7/5. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:45 pm
ORD
- CNX
2 stops29h 30m
Multiple Airlines
Wed 8/2610:10 am
CNX
- ORD
2 stops34h 30m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$913
This Delta deal was found by Cheapflights users on 7/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/49:24 am
MDW
- BKK
2 stops26h 11m
Delta
Fri 9/119:50 am
BKK
- MDW
2 stops24h 55m
Delta
Deal found 7/9![Delta logo]()
$991
This United Airlines deal was found by Cheapflights users on 7/8. 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.
Sat 9/197:50 pm
ORD
- BKK
2 stops25h 45m
United Airlines
Sun 11/84:55 pm
BKK
- ORD
2 stops25h 25m
United Airlines
Deal found 7/8![United Airlines logo]()
$1,007
This oojo deal was found by Cheapflights users on 7/9. 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 9/3011:01 am
STL
- HKT
2 stops31h 39m
Etihad Airways
Sat 10/109:20 pm
HKT
- STL
2 stops27h 15m
Etihad Airways
Deal found 7/9![Etihad Airways logo]()
$1,058
This Korean Air deal was found by Cheapflights users on 7/8. 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.
Sat 8/296:59 am
ORD
- BKK
2 stops26h 46m
Korean Air
Wed 11/1812:55 am
BKK
- ORD
1 stop20h 35m
Korean Air
Deal found 7/8![Korean Air logo]()
$1,173
This Japan Airlines deal was found by Cheapflights users on 7/4. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1010:40 am
ORD
- BKK
1 stop24h 20m
Japan Airlines
Fri 8/287:55 am
BKK
- ORD
1 stop39h 05m
Japan Airlines
Deal found 7/4![Japan Airlines logo]()
$1,209
This Justfly.com deal was found by Cheapflights users on 7/8. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/14:43 pm
PIA
- BKK
2 stops32h 42m
Qatar Airways
Fri 10/309:05 am
BKK
- PIA
2 stops51h 05m
Qatar Airways
Deal found 7/8![Qatar Airways logo]()
$1,277
This Emirates deal was found by Cheapflights users on 7/4. 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.
Sun 9/68:35 pm
ORD
- DMK
1 stop26h 50m
Emirates
Thu 9/1011:50 pm
DMK
- ORD
1 stop27h 55m
Emirates
Deal found 7/4![Emirates logo]()
$1,374
This Flightnetwork deal was found by Cheapflights users on 7/6. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/812:30 am
ORD
- CNX
1 stop21h 55m
EVA Air
Sun 8/168:00 pm
CNX
- ORD
2 stops37h 10m
EVA Air
Deal found 7/6![EVA Air logo]()
$1,684
This Expedia deal was found by Cheapflights users on 7/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/235:45 pm
ORD
- CNX
2 stops27h 35m
Multiple Airlines
Sun 8/308:00 pm
CNX
- ORD
2 stops30h 55m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$966
This Delta deal was found by Cheapflights users on 7/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/59:59 am
MDW
- BKK
2 stops25h 36m
Delta
Fri 9/119:50 am
BKK
- MDW
2 stops24h 55m
Delta
Deal found 7/9![Delta logo]()
$991
This oojo deal was found by Cheapflights users on 7/9. 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.
Tue 9/291:49 pm
STL
- HKT
2 stops28h 51m
Etihad Airways
Fri 10/93:20 am
HKT
- STL
2 stops32h 38m
Etihad Airways
Deal found 7/9![Etihad Airways logo]()
$1,058
This United Airlines deal was found by Cheapflights users on 7/4. 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.
Mon 7/135:45 pm
ORD
- BKK
1 stop22h 50m
United Airlines
Sun 7/193:45 pm
BKK
- ORD
2 stops35h 40m
United Airlines
Deal found 7/4![United Airlines logo]()
$1,090
This Delta deal was found by Cheapflights users on 7/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/59:59 am
MDW
- BKK
2 stops27h 06m
Delta
Fri 9/112:35 am
BKK
- MDW
2 stops32h 10m
Delta
Deal found 7/9![Delta logo]()
$991
This Etihad Airways deal was found by Cheapflights users on 7/6. 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.
Wed 11/1111:21 am
PIA
- BKK
2 stops30h 14m
Multiple Airlines
Wed 12/27:55 pm
BKK
- PIA
2 stops34h 04m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$1,038
This United Airlines deal was found by Cheapflights users on 7/8. 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.
Mon 7/1311:50 am
ORD
- BKK
1 stop24h 05m
United Airlines
Wed 7/153:45 pm
BKK
- ORD
2 stops31h 42m
United Airlines
Deal found 7/8![United Airlines logo]()
$1,096
This Korean Air deal was found by Cheapflights users on 7/9. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/412:10 pm
ORD
- BKK
1 stop21h 35m
Korean Air
Sat 9/129:50 am
BKK
- ORD
2 stops23h 48m
Korean Air
Deal found 7/9![Korean Air logo]()
$1,214
This Delta deal was found by Cheapflights users on 7/6. 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.
Mon 11/26:30 am
ORD
- HKT
2 stops26h 40m
Delta
Sun 11/1511:40 pm
HKT
- ORD
2 stops35h 13m
Delta
Deal found 7/6![Delta logo]()
$1,021
This Malaysia Airlines deal was found by Cheapflights users on 7/8. 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 Malaysia Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:15 pm
ORD
- CNX
3 stops31h 30m
Malaysia Airlines
Sat 8/2911:55 am
CNX
- ORD
3 stops31h 50m
Malaysia Airlines
Deal found 7/8![Malaysia Airlines logo]()
$2,516
This Qatar Airways deal was found by Cheapflights users on 7/4. 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.
Thu 9/1011:01 am
STL
- BKK
2 stops32h 34m
Qatar Airways
Sun 9/133:00 am
BKK
- STL
2 stops33h 27m
Qatar Airways
Deal found 7/4![Qatar Airways logo]()
$1,290
This Etihad Airways deal was found by Cheapflights users on 7/8. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/84:50 pm
STL
- HKT
2 stops31h 40m
Multiple Airlines
Wed 9/169:20 pm
HKT
- STL
2 stops35h 24m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$1,068
This Delta deal was found by Cheapflights users on 7/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/37:55 pm
ORD
- HKT
2 stops37h 15m
Delta
Tue 1/1211:40 pm
HKT
- ORD
2 stops37h 06m
Delta
Deal found 7/5![Delta logo]()
$1,021
This Emirates deal was found by Cheapflights users on 7/5. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/138:35 pm
ORD
- DMK
1 stop26h 35m
Emirates
Tue 11/1010:55 pm
DMK
- ORD
1 stop29h 00m
Emirates
Deal found 7/5![Emirates logo]()
$1,374
This United Airlines deal was found by Cheapflights users on 7/8. 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.
Sun 7/266:17 pm
ORD
- BKK
3 stops27h 18m
United Airlines
Tue 8/253:45 pm
BKK
- ORD
2 stops25h 00m
United Airlines
Deal found 7/8![United Airlines logo]()
$1,142
This Trip.com deal was found by Cheapflights users on 7/8. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/911:50 am
ORD
- CNX
2 stops33h 30m
Multiple Airlines
Sun 8/168:00 pm
CNX
- ORD
2 stops30h 55m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$1,085
This Qatar Airways deal was found by Cheapflights users on 7/7. 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 9/106:29 am
STL
- HKT
2 stops37h 16m
Qatar Airways
Mon 9/148:30 pm
HKT
- STL
2 stops58h 08m
Qatar Airways
Deal found 7/7![Qatar Airways logo]()
$1,347
This Delta deal was found by Cheapflights users on 7/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/208:48 am
ORD
- HKT
2 stops25h 22m
Delta
Mon 8/2411:25 pm
HKT
- ORD
2 stops36h 04m
Delta
Deal found 7/9![Delta logo]()
$1,021
This Emirates deal was found by Cheapflights users on 7/5. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/138:35 pm
ORD
- DMK
1 stop36h 10m
Emirates
Sat 11/1410:55 pm
DMK
- ORD
1 stop29h 00m
Emirates
Deal found 7/5![Emirates logo]()
$1,424
This Delta deal was found by Cheapflights users on 7/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/79:24 am
MDW
- HKT
2 stops24h 46m
Delta
Mon 9/1411:25 pm
HKT
- MDW
2 stops35h 20m
Delta
Deal found 7/9![Delta logo]()
$1,021
This Justfly.com deal was found by Cheapflights users on 7/7. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/1312:30 am
ORD
- CNX
2 stops30h 40m
EVA Air
Thu 7/3011:35 am
CNX
- ORD
1 stop21h 35m
EVA Air
Deal found 7/7![EVA Air logo]()
$1,705
Last-minute flights from Illinois to ThailandDiscover last-minute flight deals from Illinois to Thailand. Data last updated July 10, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Thailand. Data last updated July 10, 2026 and is based on user searches.
This Justfly.com deal was found by Cheapflights users on 7/8. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/104:00 pm
ORD
- HKT
1 stop37h 20m
Cathay Pacific
Tue 9/811:50 am
HKT
- ORD
1 stop38h 30m
Cathay Pacific
Deal found 7/8![Cathay Pacific logo]()
$887
This oojo deal was found by Cheapflights users on 7/8. 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.
Tue 8/114:00 pm
ORD
- HKT
1 stop30h 50m
Cathay Pacific
Tue 9/811:50 am
HKT
- ORD
1 stop38h 30m
Cathay Pacific
Deal found 7/8![Cathay Pacific logo]()
$873
This oojo deal was found by Cheapflights users on 7/6. 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.
Tue 8/114:00 pm
ORD
- HKT
1 stop30h 50m
Cathay Pacific
Mon 9/76:20 pm
HKT
- ORD
1 stop32h 00m
Cathay Pacific
Deal found 7/6![Cathay Pacific logo]()
$877
This Kiwi.com deal was found by Cheapflights users on 7/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/114:00 pm
ORD
- HKT
1 stop30h 50m
Cathay Pacific
Wed 9/911:50 am
HKT
- ORD
1 stop38h 30m
Cathay Pacific
Deal found 7/6![Cathay Pacific logo]()
$900
This Travelocity deal was found by Cheapflights users on 7/8. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/115:45 pm
ORD
- HKT
2 stops30h 25m
Multiple Airlines
Tue 9/812:55 pm
HKT
- ORD
2 stops31h 45m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$913
This Travelocity deal was found by Cheapflights users on 7/6. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/115:45 pm
ORD
- HKT
2 stops30h 25m
Multiple Airlines
Mon 9/77:10 pm
HKT
- ORD
2 stops31h 45m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$915
This Expedia deal was found by Cheapflights users on 7/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:45 pm
ORD
- HKT
2 stops30h 25m
Multiple Airlines
Wed 8/262:45 pm
HKT
- ORD
2 stops29h 55m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$912
This Expedia deal was found by Cheapflights users on 7/5. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:45 pm
ORD
- CNX
2 stops29h 30m
Multiple Airlines
Wed 8/2610:10 am
CNX
- ORD
2 stops34h 30m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$913
This KAYAK deal was found by Cheapflights users on 7/7. 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.
Wed 8/194:00 pm
ORD
- CNX
1 stop38h 40m
Cathay Pacific
Thu 12/1010:35 am
CNX
- ORD
1 stop39h 20m
Cathay Pacific
Deal found 7/7![Cathay Pacific logo]()
$914
This Rumbo deal was found by Cheapflights users on 7/8. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/204:00 pm
ORD
- HKT
1 stop30h 50m
Cathay Pacific
Sat 9/511:50 am
HKT
- ORD
1 stop38h 30m
Cathay Pacific
Deal found 7/8![Cathay Pacific logo]()
$879
This oojo deal was found by Cheapflights users on 7/9. 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.
Sat 8/294:00 pm
ORD
- HKT
1 stop30h 50m
Cathay Pacific
Sun 9/2711:50 am
HKT
- ORD
1 stop38h 05m
Cathay Pacific
Deal found 7/9![Cathay Pacific logo]()
$923
This ScholarTrip deal was found by Cheapflights users on 7/9. 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 ScholarTrip 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
Tue 12/112:20 pm
HKT
- ORD
1 stop37h 35m
Cathay Pacific
Deal found 7/9![Cathay Pacific logo]()
$910
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 July 10, 2026.
Search for one-way flight options from Illinois to Thailand. Find affordable one-way fares based on user searches. Data last updated July 10, 2026.
This KAYAK deal was found by Cheapflights users on 7/5. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/314:00 pm
ORD
- CNX
1 stop38h 40m
Cathay Pacific
Deal found 7/5![Cathay Pacific logo]()
$452
This oojo deal was found by Cheapflights users on 7/10. 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.
Sun 8/94:00 pm
ORD
- HKT
1 stop30h 50m
Cathay Pacific
Deal found 7/10![Cathay Pacific logo]()
$457
This oojo deal was found by Cheapflights users on 7/7. 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.
Thu 8/134:00 pm
ORD
- HKT
1 stop30h 50m
Cathay Pacific
Deal found 7/7![Cathay Pacific logo]()
$460
This FlightHub deal was found by Cheapflights users on 7/5. 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.
Mon 8/315:45 pm
ORD
- CNX
2 stops27h 35m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$469
This Cathay Pacific deal was found by Cheapflights users on 7/9. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/234:00 pm
ORD
- HKT
1 stop30h 50m
Cathay Pacific
Deal found 7/9![Cathay Pacific logo]()
$476
This Cathay Pacific deal was found by Cheapflights users on 7/9. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/234:00 pm
ORD
- CNX
1 stop38h 40m
Cathay Pacific
Deal found 7/9![Cathay Pacific logo]()
$476
This Cathay Pacific deal was found by Cheapflights users on 7/5. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/194:00 pm
ORD
- HKT
1 stop37h 20m
Cathay Pacific
Deal found 7/5![Cathay Pacific logo]()
$478
This Cathay Pacific deal was found by Cheapflights users on 7/5. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/194:00 pm
ORD
- CNX
1 stop38h 40m
Cathay Pacific
Deal found 7/5![Cathay Pacific logo]()
$478
This Expedia deal was found by Cheapflights users on 7/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/105:45 pm
ORD
- HKT
2 stops41h 15m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$485
This Flightnetwork deal was found by Cheapflights users on 7/5. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:45 pm
ORD
- CNX
2 stops27h 35m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$486
This oojo deal was found by Cheapflights users on 7/8. 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.
Sun 9/133:19 pm
STL
- BKK
2 stops29h 36m
Philippine Airlines
Deal found 7/8![Philippine Airlines logo]()
$505
This KAYAK deal was found by Cheapflights users on 7/9. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/184:15 pm
ORD
- CNX
1 stop38h 25m
Cathay Pacific
Deal found 7/9![Cathay Pacific logo]()
$522
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 July 10, 2026.
Round-trip from | $864 (KAYAK) |
|---|---|
One-way from | $452 (KAYAK) |
Popular in | December |
Cheapest in | September |
Average price | $1,129 |
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 July 10, 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 8/19
5:45 pm-11:15 am
2 stops29h 30m
Chiang Mai
Wed 8/26
10:10 am-8:40 am
2 stops34h 30m
$913
ChicagoChiang Mai
ORD - CNX
ORDCNX
Chicago O'Hare Intl
Sun 8/23
5:45 pm-9:20 am
2 stops27h 35m
Chiang Mai
Sun 8/30
8:00 pm-2:55 pm
2 stops30h 55m
$966
ChicagoBangkok
MDW - BKK
MDWBKK
Chicago Midway
Fri 9/4
9:24 am-11:35 pm
2 stops26h 11m
Bangkok Suvarnabhumi
Fri 9/11
9:50 am-10:45 pm
2 stops24h 55m
$991
ChicagoBangkok
MDW - BKK
MDWBKK
Chicago Midway
Sat 9/5
9:59 am-11:35 pm
2 stops25h 36m
Bangkok Suvarnabhumi
Fri 9/11
9:50 am-10:45 pm
2 stops24h 55m
$991
ChicagoBangkok
MDW - BKK
MDWBKK
Chicago Midway
Sat 9/5
9:59 am-1:05 am
2 stops27h 06m
Bangkok Suvarnabhumi
Fri 9/11
2:35 am-10:45 pm
2 stops32h 10m
$991
ChicagoBangkok
ORD - BKK
ORDBKK
Chicago O'Hare Intl
Sat 9/19
7:50 pm-9:35 am
2 stops25h 45m
Bangkok Suvarnabhumi
Sun 11/8
4:55 pm-5:20 am
2 stops25h 25m
$1,007
ChicagoPhuket City
ORD - HKT
ORDHKT
Chicago O'Hare Intl
Mon 11/2
6:30 am-10:10 pm
2 stops26h 40m
Phuket City
Sun 11/15
11:40 pm-9:53 pm
2 stops35h 13m
$1,021
ChicagoPhuket City
ORD - HKT
ORDHKT
Chicago O'Hare Intl
Sun 1/3
7:55 pm-10:10 pm
2 stops37h 15m
Phuket City
Tue 1/12
11:40 pm-11:46 pm
2 stops37h 06m
$1,021
ChicagoPhuket City
ORD - HKT
ORDHKT
Chicago O'Hare Intl
Thu 8/20
8:48 am-10:10 pm
2 stops25h 22m
Phuket City
Mon 8/24
11:25 pm-11:29 pm
2 stops36h 04m
$1,021
ChicagoPhuket City
MDW - HKT
MDWHKT
Chicago Midway
Mon 9/7
9:24 am-10:10 pm
2 stops24h 46m
Phuket City
Mon 9/14
11:25 pm-10:45 pm
2 stops35h 20m
$1,021
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-CNX
STL-BKK
MDW-BKK
ORD-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-CNX
STL-BKK
MDW-BKK
What is the cheapest month to book a flight from Illinois to Thailand?
Currently, July is the cheapest month in which you can book a flight from Illinois to Thailand (average of $609). Flying from Illinois to Thailand in August is currently the most expensive (average of $1,407). 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 47 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
Flights by cabin class
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 July 10, 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 July 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$602 | Average$868 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$665 | Average$915 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$679 | Average$1,066 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$696 | Average$917 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$704 | Average$1,152 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$710 | Average$1,008 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$749 | Average$1,360 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$790 | Average$1,134 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$804 | Average$1,111 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$815 | Average$971 | FlexibilityNo cancel fee | On-time79% |