Bangkok

$383+ 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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BKK
Aug 5 — Aug 121
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Cheap flight deals from Illinois to Bangkok

Keep the following information in mind while searching for Illinois to Bangkok flight deals. Data was last updated July 31, 2025.

Round-trip from

$719
(United Airlines)

One-way from

$383
(oojo)

Popular in

December

Cheapest in

September

Average price

$1,197
From Illinois to Bangkok
One-way flight from Illinois to Bangkok
Highest demand for flights based on searches. 5% potential increase in price ($59 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).
Average for round-trip flights in July 2025

Find 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 July 31, 2025.

This United Airlines deal was found by Cheapflights users on 7/31. 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 9/157:10 amORD - BKK
2 stops28h 45mUnited Airlines
Thu 11/207:10 amBKK - ORD
2 stops27h 06mUnited Airlines
Deal found 7/31$719
This FlightHub deal was found by Cheapflights users on 7/30. 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.
Sun 9/147:50 pmORD - BKK
1 stop21h 25mTurkish Airlines
Wed 9/246:45 amBKK - ORD
1 stop38h 55mTurkish Airlines
Deal found 7/30$720
This CrystalTravel deal was found by Cheapflights users on 7/30. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/52:40 pmORD - BKK
1 stop20h 30mCathay Pacific
Sat 11/157:15 pmBKK - ORD
1 stop30h 45mCathay Pacific
Deal found 7/30$721
This ANA deal was found by Cheapflights users on 7/29. 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 ANA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/255:45 pmORD - BKK
1 stop22h 50mMultiple Airlines
Mon 9/89:35 amBKK - ORD
2 stops25h 20mMultiple Airlines
Deal found 7/29$727
This FlightHub deal was found by Cheapflights users on 7/30. 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 8/1212:50 pmORD - BKK
1 stop38h 40mANA
Thu 9/117:00 amBKK - ORD
1 stop19h 55mANA
Deal found 7/30$734
This oojo deal was found by Cheapflights users on 7/30. 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 10/1812:00 pmORD - BKK
1 stop20h 25mAir India
Sat 10/2510:25 pmBKK - ORD
1 stop21h 05mAir India
Deal found 7/30$752
This Delta deal was found by Cheapflights users on 7/29. 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 8/259:30 amMDW - BKK
2 stops25h 55mDelta
Mon 9/89:40 pmBKK - MDW
2 stops26h 48mDelta
Deal found 7/29$859
This Gurufare deal was found by Cheapflights users on 7/31. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/247:23 amSTL - BKK
2 stops27h 37mJapan Airlines
Sun 10/59:45 amBKK - STL
2 stops49h 20mJapan Airlines
Deal found 7/31$966
This Flysmarter deal was found by Cheapflights users on 7/31. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/118:25 amSTL - BKK
2 stops33h 35mMultiple Airlines
Wed 8/277:00 amBKK - STL
2 stops23h 58mMultiple Airlines
Deal found 7/31$969
This Gurufare deal was found by Cheapflights users on 7/29. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/278:10 amSTL - BKK
2 stops32h 25mANA
Wed 9/39:35 pmBKK - STL
2 stops28h 44mANA
Deal found 7/29$975
This Delta deal was found by Cheapflights users on 7/30. 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 12/87:30 amSTL - BKK
2 stops26h 50mDelta
Tue 12/169:30 pmBKK - STL
2 stops28h 50mDelta
Deal found 7/30$978
This Delta deal was found by Cheapflights users on 7/30. 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 8/56:20 amEVV - BKK
2 stops30h 45mDelta
Wed 8/272:35 amBKK - EVV
2 stops31h 19mDelta
Deal found 7/30$978

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 July 31, 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

Mon 9/15

7:10 am-11:55 pm

2 stops28h 45m

Bangkok Suvarnabhumi

Thu 11/20

7:10 am-9:16 pm

2 stops27h 06m

$719

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Sun 9/14

7:50 pm-5:15 am

1 stop21h 25m

Bangkok Suvarnabhumi

Wed 9/24

6:45 am-9:40 am

1 stop38h 55m

$720

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Tue 9/16

7:15 am-11:55 pm

2 stops28h 40m

Bangkok Suvarnabhumi

Tue 11/11

10:50 pm-7:20 am

1 stop21h 30m

$722

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Wed 10/29

3:40 pm-12:10 am

1 stop20h 30m

Bangkok Suvarnabhumi

Wed 11/5

7:15 pm-1:00 pm

1 stop30h 45m

$723

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Tue 8/12

12:50 pm-3:30 pm

1 stop38h 40m

Bangkok Suvarnabhumi

Thu 9/11

7:00 am-2:55 pm

1 stop19h 55m

$734

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Sat 10/18

12:00 pm-8:25 pm

1 stop20h 25m

Bangkok Suvarnabhumi

Sat 10/25

10:25 pm-7:30 am

1 stop21h 05m

$752

ChicagoBangkok

MDW - BKK

MDWBKK

Chicago Midway

Mon 8/25

9:30 am-11:25 pm

2 stops25h 55m

Bangkok Suvarnabhumi

Mon 9/8

9:40 pm-12:28 pm

2 stops26h 48m

$859

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Wed 9/24

7:23 am-11:00 pm

2 stops27h 37m

Bangkok Suvarnabhumi

Sun 10/5

9:45 am-11:05 pm

2 stops49h 20m

$966

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Mon 8/11

8:25 am-6:00 am

2 stops33h 35m

Bangkok Suvarnabhumi

Wed 8/27

7:00 am-6:58 pm

2 stops23h 58m

$969

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Wed 8/27

8:10 am-4:35 am

2 stops32h 25m

Bangkok Suvarnabhumi

Wed 9/3

9:35 pm-2:19 pm

2 stops28h 44m

$975

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 50 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, September is the cheapest month in which you can book a flight from Illinois to Bangkok (average of $946). Flying from Illinois to Bangkok in December is currently the most expensive (average of $1,563). 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 July 31, 2025.

When flying from Illinois to Bangkok, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Bangkok

Get insights into the airlines that provide service to Bangkok. 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 Bangkok. Reviews last updated July 31, 2025.
Read reviews from past customers who have flown EVA Air, ANA, and Korean Air from Illinois to Bangkok. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
8.4
Very good

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.

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.
  • 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 $383. Turkish Airlines flights start at $399 while deals on Cathay Pacific start at $421 one-way.

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

  • 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, September is the cheapest month in which you can book a flight from Illinois to Bangkok (average of $946). Flying from Illinois to Bangkok in December is currently the most expensive (average of $1,563). 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.

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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
EmiratesCheapest$503Average$1,391FlexibilityNo cancel feeOn-time75%
Japan AirlinesCheapest$707Average$1,015FlexibilityNo cancel feeOn-time79%
Air IndiaCheapest$710Average$920FlexibilityNo cancel feeOn-timeN/A
ANACheapest$720Average$975FlexibilityNo cancel feeOn-time80%
United AirlinesCheapest$738Average$950FlexibilityNo cancel feeOn-time69%
Korean AirCheapest$757Average$960FlexibilityNo cancel feeOn-time81%
Cathay PacificCheapest$782Average$901FlexibilityNo cancel feeOn-time72%
Turkish AirlinesCheapest$791Average$967FlexibilityNo cancel feeOn-time77%
Etihad AirwaysCheapest$821Average$1,186FlexibilityNo cancel feeOn-time75%
IndiGoCheapest$893Average$1,260FlexibilityNo cancel feeOn-time80%

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