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Illinois

$546+ Cheap flights from Bangkok 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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — ORD
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Bangkok to Illinois

Keep the following information in mind while searching for Bangkok to Illinois flight deals. Data was last updated September 11, 2025.

Round-trip from

$824
(Gotogate)

One-way from

$546
(Kiwi.com)

Popular in

January

Cheapest in

February

Average price

$1,060
From Bangkok to Illinois
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One-way flight from Bangkok 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 September 2025
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Find flight deals from Bangkok to Illinois

Cheapest flights from Bangkok to Illinois
Explore the most affordable flight options available from Bangkok to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Gotogate deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/38:15 amBKK - ORD
1 stop19h 26mMultiple Airlines
Mon 11/178:20 pmORD - BKK
1 stop43h 00mMultiple Airlines
Deal found 9/11$824
This Flightnetwork deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/38:15 amBKK - ORD
1 stop19h 26mAir Canada
Mon 11/173:40 pmORD - BKK
1 stop25h 50mAir Canada
Deal found 9/11$834
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/97:05 amBKK - ORD
2 stops37h 40mMultiple Airlines
Tue 10/217:50 pmORD - BKK
1 stop21h 25mMultiple Airlines
Deal found 9/11$889
This CheapOair deal was found by Cheapflights users on 9/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/198:15 amBKK - ORD
1 stop21h 29mMultiple Airlines
Fri 1/308:20 pmORD - BKK
1 stop43h 00mMultiple Airlines
Deal found 9/9$926
This Air Canada deal was found by Cheapflights users on 9/9. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/198:15 amBKK - ORD
2 stops24h 45mAir Canada
Fri 1/303:40 pmORD - BKK
1 stop25h 50mAir Canada
Deal found 9/9$931
This Air Canada deal was found by Cheapflights users on 9/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/48:15 amBKK - STL
2 stops44h 14mAir Canada
Tue 11/184:05 pmSTL - BKK
2 stops49h 25mAir Canada
Deal found 9/10$1,031
This Delta deal was found by Cheapflights users on 9/8. 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.
Thu 10/232:35 amBKK - MDW
2 stops31h 39mDelta
Fri 10/319:35 amMDW - BKK
2 stops27h 10mDelta
Deal found 9/8$1,040
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2412:55 amBKK - STL
2 stops29h 04mDelta
Tue 2/246:30 amSTL - BKK
2 stops29h 15mDelta
Deal found 9/10$1,047
This Delta deal was found by Cheapflights users on 9/9. 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 9/112:35 amBKK - MDW
2 stops31h 01mDelta
Fri 9/199:29 amMDW - BKK
2 stops25h 56mDelta
Deal found 9/9$1,047
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/44:50 pmDMK - ORD
1 stop26h 40mMultiple Airlines
Mon 12/295:20 pmORD - DMK
2 stops47h 35mMultiple Airlines
Deal found 9/10$1,073
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/44:50 pmDMK - ORD
1 stop26h 40mMultiple Airlines
Sun 12/285:20 pmORD - DMK
2 stops45h 50mMultiple Airlines
Deal found 9/11$1,086
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/279:40 pmBKK - STL
2 stops38h 58mDelta
Sat 10/256:50 amSTL - BKK
2 stops26h 40mDelta
Deal found 9/10$1,089

Cheapflights Fare Finder

 
Customize your flight search to find flights from Bangkok 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 September 11, 2025.
Use the filters below to find and compare flights from Bangkok to Illinois that are best for you.

Fly from

Bangkok

Fly to

Illinois

Route

Depart

Return

Price

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Tue 11/4

8:15 am-3:29 pm

2 stops44h 14m

Lambert-St Louis

Tue 11/18

4:05 pm-6:30 am

2 stops49h 25m

$1,031

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Tue 11/18

12:55 am-8:30 am

1 stop20h 35m

Chicago O'Hare Intl

Fri 1/30

11:25 am-11:20 pm

1 stop22h 55m

$1,032

BangkokChicago

BKK - MDW

BKKMDW

Bangkok Suvarnabhumi

Thu 10/23

2:35 am-10:14 pm

2 stops31h 39m

Chicago Midway

Fri 10/31

9:35 am-12:45 am

2 stops27h 10m

$1,040

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Sat 12/6

12:55 am-8:30 am

1 stop20h 35m

Chicago O'Hare Intl

Wed 1/14

11:25 am-12:45 am

1 stop24h 20m

$1,045

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Sat 10/4

2:35 am-9:57 pm

2 stops31h 22m

Chicago O'Hare Intl

Sun 10/19

11:02 am-11:25 pm

2 stops24h 23m

$1,047

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Sat 12/20

12:55 am-8:30 am

1 stop20h 35m

Chicago O'Hare Intl

Fri 1/30

11:25 am-1:25 pm

1 stop37h 00m

$1,047

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Wed 11/5

12:55 am-9:19 pm

2 stops33h 24m

Chicago O'Hare Intl

Mon 12/29

6:01 pm-11:20 pm

2 stops40h 19m

$1,047

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Sat 12/20

12:55 am-8:30 am

1 stop20h 35m

Chicago O'Hare Intl

Mon 1/19

11:25 am-11:20 pm

1 stop22h 55m

$1,047

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 12/25

9:40 am-11:39 pm

2 stops26h 59m

Lambert-St Louis

Tue 2/24

6:45 am-11:20 pm

2 stops27h 35m

$1,047

BangkokChicago

BKK - MDW

BKKMDW

Bangkok Suvarnabhumi

Sat 10/4

2:35 am-9:36 pm

2 stops31h 01m

Chicago Midway

Sun 10/19

9:20 am-11:25 pm

2 stops26h 05m

$1,047

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 57 results
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Best time to book a flight from Bangkok to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Bangkok 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 Bangkok to Illinois

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

Currently, August is the cheapest month in which you can book a flight from Bangkok to Illinois (average of $245). Flying from Bangkok 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.

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 September 11, 2025.
See what other customers who have flown with EVA Air, Korean Air, and ANA from Bangkok to Illinois have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,236 reviews

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Crew

8.6

Overall

8.4

Food

8.1

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
1,236 reviews
EVA Air
8.4
Very good
1,236 reviews

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Crew

8.6

Overall

8.4

Food

8.1

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
1,139 reviews
EVA Air
8.4
Very good
1,236 reviews

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Crew

8.6

Overall

8.4

Food

8.1

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
961 reviews
EVA Air
8.4
Very good
1,236 reviews

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Crew

8.6

Overall

8.4

Food

8.1

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
Japan Airlines
8.3
Very good
1,559 reviews
EVA Air
8.4
Very good
1,236 reviews

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Crew

8.6

Overall

8.4

Food

8.1

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
8,937 reviews
EVA Air
8.4
Very good
1,236 reviews

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Crew

8.6

Overall

8.4

Food

8.1

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 Bangkok 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 Bangkok to Illinois?

    Departing from Bangkok to Illinois will take you 20h 35m. The distance from Bangkok to Illinois is about 8545 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    For one-way options, check prices for Air Canada. According to our data, you can fly for as low as $547. Users have also found prices from $614 and $618 on Thai Airways and Korean Air, respectively.

  • What are the most popular routes from Bangkok to Illinois?

    When deciding which route to take from Bangkok to Illinois consider Bangkok Suvarnabhumi - Chicago O'Hare Intl, Bangkok Suvarnabhumi - Chicago Midway or Bangkok Suvarnabhumi - Lambert-St Louis as they are the most popular.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Bangkok 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 Bangkok to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Bangkok to Illinois (average of $245). Flying from Bangkok 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 Bangkok 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 Bangkok to Illinois

Discover the top 8 airlines that operate flights from Bangkok 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 September 11, 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$1,068FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$987Average$1,088FlexibilityNo cancel feeOn-time69%
Thai AirwaysCheapest$994Average$1,155FlexibilityNo cancel feeOn-time77%
ANACheapest$1,004Average$1,085FlexibilityNo cancel feeOn-time80%
EVA AirCheapest$1,060Average$1,142FlexibilityNo cancel feeOn-time74%

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