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$424+ Cheap flights from Illinois to Bangkok

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 1/16. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BKK
ene. 14 — ene. 211
mié. 1/14
mié. 1/21
1 adult, Economy
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Cheap flight deals from Illinois to Bangkok

Cheapest flights from Illinois to Bangkok
Explore the most affordable flight options available from Illinois to Bangkok. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 15, 2025.

This Ovago deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/312:35 pmORD - BKK
1 stop38h 40mCathay Pacific
mié. 1/2811:40 amBKK - ORD
1 stop38h 15mCathay Pacific
Deal found 12/14$929
This oojo deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/281:30 pmORD - BKK
1 stop29h 20mAir India
dom. 1/258:50 amBKK - ORD
2 stops39h 40mAir India
Deal found 12/13$1,017
This Ovago deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/282:35 pmORD - BKK
1 stop32h 30mCathay Pacific
mié. 2/257:15 pmBKK - ORD
1 stop30h 40mCathay Pacific
Deal found 12/13$1,051
This United Airlines deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/3112:45 pmORD - BKK
3 stops33h 40mUnited Airlines
mié. 1/284:55 pmBKK - ORD
2 stops26h 35mUnited Airlines
Deal found 12/14$1,086
This Justfly.com deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/241:30 pmORD - BKK
1 stop29h 20mAir India
mar. 3/245:55 pmBKK - ORD
2 stops30h 35mAir India
Deal found 12/15$1,116
This FlightHub deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/241:30 pmORD - BKK
1 stop29h 20mAir India
jue. 3/265:55 pmBKK - ORD
2 stops30h 35mAir India
Deal found 12/15$1,118
This Ovago deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/282:35 pmORD - BKK
1 stop38h 40mCathay Pacific
dom. 1/253:05 pmBKK - ORD
1 stop34h 50mCathay Pacific
Deal found 12/15$1,119
This Ovago deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/272:35 pmORD - BKK
1 stop31h 05mCathay Pacific
mar. 3/244:55 pmBKK - ORD
1 stop33h 00mCathay Pacific
Deal found 12/15$1,138
This United Airlines deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/152:39 pmORD - BKK
3 stops31h 46mUnited Airlines
dom. 1/44:55 pmBKK - ORD
3 stops30h 13mUnited Airlines
Deal found 12/13$1,139
This KAYAK deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/241:30 pmORD - BKK
1 stop29h 20mAir India
dom. 3/223:10 pmBKK - ORD
2 stops33h 20mAir India
Deal found 12/15$1,140
This Ovago deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/272:35 pmORD - BKK
1 stop37h 05mCathay Pacific
sáb. 1/315:40 pmBKK - ORD
1 stop32h 15mCathay Pacific
Deal found 12/14$1,165
This United Airlines deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/1412:55 pmSTL - BKK
2 stops51h 15mUnited Airlines
mar. 1/207:10 amBKK - STL
2 stops26h 48mUnited Airlines
Deal found 12/12$1,319

Find flight deals from Illinois to Bangkok

Keep the following information in mind while searching for Illinois to Bangkok flight deals. Data was last updated diciembre 15, 2025.

Round-trip from

$821
(United Airlines)

One-way from

$424
(Trip.com)

Popular in

June

Cheapest in

September

Average price

$1,341
From Illinois to Bangkok
Search Deals
One-way flight from Illinois to Bangkok
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($203 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Bangkok 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 diciembre 15, 2025.
Use the filters below to find and compare flights from Illinois to Bangkok that are best for you.

Fly from

Illinois

Fly to

Bangkok

Route

Depart

Return

Price

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

lun. 2/16

4:25 pm-5:10 am

1 stop23h 45m

Bangkok Suvarnabhumi

jue. 3/12

4:55 pm-6:19 am

2 stops25h 24m

$826

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

mié. 2/18

1:30 pm-8:20 pm

1 stop41h 50m

Bangkok Suvarnabhumi

jue. 3/26

8:50 am-12:30 pm

1 stop39h 40m

$830

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

lun. 3/9

2:45 pm-11:25 am

3 stops32h 40m

Bangkok Suvarnabhumi

mié. 3/18

4:55 pm-5:12 am

2 stops24h 17m

$835

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

lun. 1/26

4:25 pm-12:20 am

1 stop42h 55m

Bangkok Suvarnabhumi

lun. 2/23

4:55 pm-3:10 pm

2 stops35h 15m

$848

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

mar. 2/17

6:25 am-12:20 am

2 stops28h 55m

Bangkok Suvarnabhumi

jue. 3/12

4:55 pm-6:19 am

2 stops25h 24m

$857

ChicagoBangkok

ORD - DMK

ORDDMK

Chicago O'Hare Intl

lun. 1/26

1:30 pm-2:30 am

1 stop24h 00m

Bangkok Don Mueang Intl

dom. 2/1

4:50 pm-11:30 am

2 stops31h 40m

$868

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

mar. 3/10

2:45 pm-11:25 am

3 stops32h 40m

Bangkok Suvarnabhumi

mié. 4/29

3:40 pm-7:07 am

2 stops27h 27m

$880

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

dom. 1/25

9:05 pm-11:25 am

2 stops49h 20m

Bangkok Suvarnabhumi

dom. 2/15

4:55 pm-6:20 am

2 stops26h 25m

$880

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

mar. 1/27

10:30 am-12:20 am

1 stop24h 50m

Bangkok Suvarnabhumi

mié. 5/27

7:00 am-6:54 pm

2 stops23h 54m

$885

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

jue. 1/29

6:50 am-12:45 am

2 stops28h 55m

Bangkok Suvarnabhumi

mié. 2/25

9:40 am-11:52 pm

2 stops27h 12m

$906

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

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

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

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

Currently, August is the cheapest month in which you can book a flight from Illinois to Bangkok (average of $642). Flying from Illinois to Bangkok in June is currently the most expensive (average of $918). 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 IL to BKK?

Find hourly flight availability from Illinois to Bangkok. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated diciembre 15, 2025.

A simple way to save on the total cost of your ticket is to fly from Illinois to Bangkok in the morning. If you’re flexible enough to do this you can expect to save up to 14% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from Illinois to Bangkok?

Use this chart to determine the cheapest time to fly round-trip from Illinois to Bangkok. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Illinois to Bangkok flight should consider departing on Tuesday mornings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Bangkok. 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 Illinois to Bangkok?

    There are many flights that can get you from Illinois to Bangkok in 23h 45m. Fly via United Airlines, Air India, or ANA to get the fastest option. The distance from Illinois to Bangkok is about 8545 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 Illinois to Bangkok one-way?

    To fly one-way, consider booking your trip with Air India, which is currently one of the cheapest options available, starting at $308. Turkish Airlines flights start at $345 while deals on Cathay Pacific start at $360 one-way.

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

    The most popular route from Illinois to Bangkok is Chicago O'Hare Intl - Bangkok Suvarnabhumi. You may also consider Chicago Midway - Bangkok Suvarnabhumi or Chicago O'Hare Intl - Bangkok Don Mueang Intl.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Illinois to Bangkok (average of $642). Flying from Illinois to Bangkok in June is currently the most expensive (average of $918). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Illinois to Bangkok

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Illinois to Bangkok

Discover the top 10 airlines that operate flights from Illinois to Bangkok. 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 diciembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air IndiaCheapest$625Average$889FlexibilityNo cancel feeOn-timeN/A
Cathay PacificCheapest$670Average$877FlexibilityNo cancel feeOn-time72%
ANACheapest$681Average$865FlexibilityNo cancel feeOn-time80%
Korean AirCheapest$698Average$868FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$707Average$889FlexibilityNo cancel feeOn-time69%
Turkish AirlinesCheapest$716Average$989FlexibilityNo cancel feeOn-time77%
DeltaCheapest$745Average$1,094FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$779Average$1,063FlexibilityNo cancel feeOn-time71%
Etihad AirwaysCheapest$800Average$1,135FlexibilityNo cancel feeOn-time75%
Japan AirlinesCheapest$825Average$979FlexibilityNo cancel feeOn-time79%

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