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Illinois

$488+ Cheap flights from Thailand to Illinois

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/13. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — ORD
Aug 26 — Sep 21
Tue 8/26
Tue 9/2
1 adult, Economy
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Cheap flight deals from Thailand to Illinois

Keep the following information in mind while searching for Thailand to Illinois flight deals. Data was last updated August 21, 2025.

Round-trip from

$847
(FlightHub)

One-way from

$488
(Kiwi.com)

Popular in

January

Cheapest in

February

Average price

$1,150
From Thailand to Illinois
Search Deals
One-way flight from Thailand to Illinois
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($38 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Thailand to Illinois

Cheapest flights from Thailand to Illinois
Explore the most affordable flight options available from Thailand to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 21, 2025.

This FlightHub deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/3010:05 pmBKK - ORD
2 stops35h 17mJapan Airlines
Wed 10/11:05 amORD - BKK
1 stop26h 05mJapan Airlines
Deal found 8/20$847
This Mytrip deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/811:20 pmBKK - ORD
2 stops30h 54mMultiple Airlines
Tue 9/237:09 pmORD - BKK
2 stops29h 06mMultiple Airlines
Deal found 8/20$848
This Kiwi.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/73:55 pmBKK - ORD
2 stops42h 48mMultiple Airlines
Sat 10/411:45 pmORD - BKK
1 stop27h 40mMultiple Airlines
Deal found 8/18$852
This Kiwi.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/73:55 pmBKK - ORD
2 stops42h 48mMultiple Airlines
Tue 9/304:00 pmORD - BKK
1 stop31h 05mMultiple Airlines
Deal found 8/18$854
This Trip.com deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/186:40 pmBKK - ORD
2 stops40h 03mMultiple Airlines
Fri 10/316:30 amORD - BKK
2 stops28h 15mMultiple Airlines
Deal found 8/20$866
This Trip.com deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/36:40 pmBKK - ORD
2 stops40h 33mMultiple Airlines
Sat 10/117:25 amORD - BKK
2 stops46h 15mMultiple Airlines
Deal found 8/19$867
This FlightHub deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/210:05 pmBKK - ORD
1 stop29h 40mJapan Airlines
Sat 10/49:10 amORD - BKK
2 stops42h 00mJapan Airlines
Deal found 8/20$872
This OneTravel deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure OneTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/110:05 pmBKK - ORD
1 stop23h 00mJapan Airlines
Fri 10/36:55 amORD - BKK
2 stops34h 55mJapan Airlines
Deal found 8/20$877
This Kiwi.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/73:55 pmBKK - ORD
2 stops42h 48mMultiple Airlines
Mon 9/297:50 pmORD - BKK
1 stop21h 25mMultiple Airlines
Deal found 8/18$901
This Kiwi.com deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2112:40 pmDMK - ORD
1 stop31h 10mMultiple Airlines
Sat 11/14:03 pmORD - DMK
2 stops42h 07mMultiple Airlines
Deal found 8/20$943
This EaseMyTrip deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure EaseMyTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/19:45 amBKK - STL
2 stops25h 24mJapan Airlines
Sun 9/219:56 amSTL - BKK
2 stops25h 04mJapan Airlines
Deal found 8/21$943
This Kiwi.com deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1912:40 pmDMK - ORD
2 stops34h 30mMultiple Airlines
Tue 10/286:40 amORD - DMK
2 stops51h 30mMultiple Airlines
Deal found 8/19$953

Cheapflights Fare Finder

 
Customize your flight search to find flights from Thailand to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 21, 2025.
Use the filters below to find and compare flights from Thailand to Illinois that are best for you.

Fly from

Thailand

Fly to

Illinois

Route

Depart

Return

Price

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Tue 9/30

10:05 pm-9:22 pm

2 stops35h 17m

Chicago O'Hare Intl

Wed 10/1

1:05 am-3:10 pm

1 stop26h 05m

$847

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Sun 9/7

3:55 pm-10:43 pm

2 stops42h 48m

Chicago O'Hare Intl

Sat 10/4

11:45 pm-3:25 pm

1 stop27h 40m

$852

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Sun 9/7

3:55 pm-10:43 pm

2 stops42h 48m

Chicago O'Hare Intl

Tue 9/30

4:00 pm-11:05 am

1 stop31h 05m

$854

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Fri 10/3

6:40 pm-11:13 pm

2 stops40h 33m

Chicago O'Hare Intl

Sat 10/11

7:25 am-5:40 pm

2 stops46h 15m

$867

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Sun 9/7

3:55 pm-10:43 pm

2 stops42h 48m

Chicago O'Hare Intl

Mon 9/29

7:50 pm-5:15 am

1 stop21h 25m

$901

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Tue 9/16

11:20 pm-6:14 pm

2 stops30h 54m

Chicago O'Hare Intl

Tue 9/23

7:50 pm-5:15 am

1 stop21h 25m

$909

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Wed 9/17

6:40 pm-6:14 pm

2 stops35h 34m

Chicago O'Hare Intl

Wed 10/29

12:50 pm-4:20 am

1 stop27h 30m

$914

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Sun 9/7

3:55 pm-10:43 pm

2 stops42h 48m

Chicago O'Hare Intl

Sun 9/28

4:00 pm-11:50 pm

1 stop19h 50m

$921

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Sat 9/6

1:30 pm-11:59 am

2 stops34h 29m

Chicago O'Hare Intl

Sat 10/4

11:45 pm-3:25 pm

1 stop27h 40m

$929

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Mon 9/1

9:45 am-11:09 pm

2 stops25h 24m

Lambert-St Louis

Sun 9/21

9:56 am-11:00 pm

2 stops25h 04m

$943

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/21

Showing 1-10 of 60 results
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Best time to book a flight from Thailand to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Thailand with our price prediction graph.
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 Thailand to Illinois

What is the cheapest month to book a flight from Thailand to Illinois?

Currently, August is the cheapest month in which you can book a flight from Thailand to Illinois (average of $245). Flying from Thailand to Illinois in March is currently the most expensive (average of $321). 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.

What is the cheapest time of day to fly from TH to IL?

Find hourly flight availability from Thailand to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 21, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Thailand to Illinois as you normally would.

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated August 21, 2025.
Read through reviews of airlines operating flights from Thailand to Illinois, such as EVA Air, Korean Air, and ANA. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,232 reviews

Food

8.1

Overall

8.4

Boarding

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
EVA Air
8.4
Very good
1,232 reviews
EVA Air
8.4
Very good
1,232 reviews

Food

8.1

Overall

8.4

Boarding

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
Korean Air
8.4
Very good
1,131 reviews
EVA Air
8.4
Very good
1,232 reviews

Food

8.1

Overall

8.4

Boarding

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
ANA
8.4
Very good
938 reviews
EVA Air
8.4
Very good
1,232 reviews

Food

8.1

Overall

8.4

Boarding

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
Cathay Pacific
7.6
Good
974 reviews
EVA Air
8.4
Very good
1,232 reviews

Food

8.1

Overall

8.4

Boarding

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
United Airlines
7.4
Good
8,934 reviews
EVA Air
8.4
Very good
1,232 reviews

Food

8.1

Overall

8.4

Boarding

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak

Related info for your journey

Find useful and relevant information for your journey from Thailand to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Thailand to Illinois?

    Departing from Thailand to Illinois will take you 35h 03m. Airlines will cover a distance of 8559 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Thailand to Illinois one-way?

    The cheapest airlines for a one-way flight from Thailand to Illinois are Thai Airways ($613), Delta ($656), and Cathay Pacific ($779).

  • Can I find deals for flights from Thailand to Illinois that include hotel bookings?

    Yes. In addition to deals on Thailand to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Thailand to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Thailand to Illinois.

  • Can I find deals for business class flights from Thailand to Illinois?

    Yes. Cheapflights offers flight deals from Thailand to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Thailand to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Thailand to Illinois (average of $245). Flying from Thailand to Illinois in March is currently the most expensive (average of $321). 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.

See more FAQs

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Alternative routes for Thailand to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Thailand to Illinois

Discover the top 8 airlines that operate flights from Thailand to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$548Average$1,089FlexibilityNo cancel feeOn-timeN/A
Japan AirlinesCheapest$681Average$991FlexibilityNo cancel feeOn-time79%
Korean AirCheapest$915Average$1,090FlexibilityNo cancel feeOn-time81%
Cathay PacificCheapest$950Average$1,047FlexibilityNo cancel feeOn-time72%
ANACheapest$983Average$1,084FlexibilityNo cancel feeOn-time80%
United AirlinesCheapest$987Average$1,057FlexibilityNo cancel feeOn-time69%
Thai AirwaysCheapest$994Average$1,155FlexibilityNo cancel feeOn-time77%
EVA AirCheapest$1,014Average$1,142FlexibilityNo cancel feeOn-time74%

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