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$394+ 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 11/28. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BKK
dic. 5 — dic. 121
vie. 12/5
vie. 12/12
1 adult, Economy
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Cheap flight deals from Illinois to Thailand

Keep the following information in mind while searching for Illinois to Thailand flight deals. Data was last updated noviembre 5, 2025.

Round-trip from

$557
(oojo)

One-way from

$394
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$898
From Illinois to Thailand
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One-way flight from Illinois to Thailand
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Highest demand for flights based on searches. 17% potential increase in price ($218 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Illinois to Thailand

Cheapest flights from Illinois to Thailand
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 noviembre 5, 2025.

This Mytrip deal was found by Cheapflights users on 11/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/276:06 pmORD - BKK
2 stops28h 09mMultiple Airlines
mar. 12/912:15 pmBKK - ORD
2 stops30h 50mMultiple Airlines
Deal found 11/4$765
This lol.travel deal was found by Cheapflights users on 11/4. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/1711:15 amORD - BKK
1 stop24h 30mKorean Air
mar. 12/29:40 amBKK - ORD
1 stop35h 50mKorean Air
Deal found 11/4$775
This CrystalTravel deal was found by Cheapflights users on 11/3. 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.
lun. 11/102:35 pmORD - BKK
1 stop32h 30mCathay Pacific
mié. 12/247:55 amBKK - ORD
1 stop18h 00mCathay Pacific
Deal found 11/3$778
This iWofly deal was found by Cheapflights users on 11/5. 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 iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/2611:15 amORD - BKK
1 stop24h 40mKorean Air
mié. 12/102:05 amBKK - ORD
1 stop19h 25mKorean Air
Deal found 11/5$782
This Gotogate deal was found by Cheapflights users on 11/4. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/2811:50 amORD - BKK
1 stop27h 30mTurkish Airlines
vie. 12/1210:10 amBKK - ORD
1 stop36h 55mTurkish Airlines
Deal found 11/4$787
This United Airlines deal was found by Cheapflights users on 11/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/101:10 pmORD - BKK
1 stop27h 00mUnited Airlines
lun. 1/199:10 amBKK - ORD
1 stop35h 10mUnited Airlines
Deal found 11/5$796
This United Airlines deal was found by Cheapflights users on 11/3. 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.
jue. 12/44:25 pmORD - BKK
1 stop23h 45mUnited Airlines
mié. 12/109:10 amBKK - ORD
1 stop19h 00mUnited Airlines
Deal found 11/3$797
This United Airlines deal was found by Cheapflights users on 11/4. 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.
lun. 11/2410:30 amORD - BKK
1 stop24h 50mUnited Airlines
dom. 11/309:10 amBKK - ORD
1 stop35h 10mUnited Airlines
Deal found 11/4$799
This CrystalTravel deal was found by Cheapflights users on 11/5. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/174:25 pmORD - BKK
1 stop25h 05mANA
vie. 11/212:20 pmBKK - ORD
1 stop30h 00mANA
Deal found 11/5$805
This Delta deal was found by Cheapflights users on 11/3. 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.
jue. 11/275:34 pmMDW - BKK
2 stops42h 21mDelta
mié. 12/102:05 amBKK - MDW
2 stops34h 42mDelta
Deal found 11/3$825
This Delta deal was found by Cheapflights users on 11/3. 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.
dom. 11/231:15 pmMDW - BKK
2 stops46h 30mDelta
mié. 12/109:30 pmBKK - MDW
2 stops39h 17mDelta
Deal found 11/3$831
This Ovago deal was found by Cheapflights users on 11/3. 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.
lun. 11/102:35 pmORD - HKT
1 stop31h 45mCathay Pacific
lun. 11/1712:20 pmHKT - ORD
1 stop37h 35mCathay Pacific
Deal found 11/3$836

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 noviembre 5, 2025.
Use the filters below to find and compare flights from Illinois to Thailand that are best for you.

Fly from

Illinois

Fly to

Thailand

Route

Depart

Return

Price

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

sáb. 1/17

1:10 pm-11:20 pm

1 stop21h 10m

Bangkok Suvarnabhumi

mié. 1/28

9:25 am-7:35 am

1 stop35h 10m

$813

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

mar. 3/3

11:25 am-11:20 pm

1 stop22h 55m

Bangkok Suvarnabhumi

mar. 3/10

9:40 am-9:40 am

1 stop36h 00m

$814

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

mar. 11/25

11:15 am-12:45 am

1 stop24h 30m

Bangkok Suvarnabhumi

lun. 12/22

2:05 am-8:30 am

1 stop19h 25m

$814

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

jue. 3/5

11:25 am-12:45 am

1 stop24h 20m

Bangkok Suvarnabhumi

mié. 3/18

2:05 am-9:40 am

1 stop19h 35m

$814

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

mié. 1/21

5:54 pm-11:20 pm

2 stops40h 26m

Bangkok Suvarnabhumi

lun. 4/27

9:50 am-11:50 pm

2 stops26h 00m

$825

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

lun. 11/24

7:47 am-12:55 am

2 stops28h 08m

Bangkok Suvarnabhumi

mar. 5/19

11:30 pm-12:39 pm

2 stops25h 09m

$825

ChicagoBangkok

MDW - BKK

MDWBKK

Chicago Midway

mié. 1/14

5:31 pm-12:45 am

2 stops42h 14m

Bangkok Suvarnabhumi

mié. 1/28

12:55 am-12:48 pm

2 stops24h 53m

$825

ChicagoBangkok

MDW - BKK

MDWBKK

Chicago Midway

mar. 11/25

6:00 am-12:55 am

2 stops29h 55m

Bangkok Suvarnabhumi

lun. 5/18

9:40 pm-12:30 pm

2 stops26h 50m

$825

ChicagoBangkok

MDW - BKK

MDWBKK

Chicago Midway

mié. 1/14

5:31 pm-12:45 am

2 stops42h 14m

Bangkok Suvarnabhumi

lun. 2/2

12:55 am-12:48 pm

2 stops24h 53m

$825

ChicagoBangkok

MDW - BKK

MDWBKK

Chicago Midway

dom. 1/18

7:16 pm-11:20 pm

2 stops39h 04m

Bangkok Suvarnabhumi

mié. 1/28

12:55 am-12:48 pm

2 stops24h 53m

$831

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/5

Showing 1-10 of 60 results
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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.
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

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

Currently, August is the cheapest month in which you can book a flight from Illinois to Thailand (average of $642). Flying from Illinois to Thailand in June is currently the most expensive (average of $867). 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 TH?

Find hourly flight availability from Illinois to Thailand. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated noviembre 5, 2025.

When flying from Illinois to Thailand, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 26% versus a flight in the afternoon.

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

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

Travelers seeking maximum savings on their Illinois to Thailand flight should consider departing on Friday afternoons when fares are most often at their lowest. Monday evenings 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 Thailand. 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 Thailand?

    Etihad Airways, Korean Air, and Delta can get you from Illinois to Thailand in just under 21h 10m. Your travel time can differ by up to 19h 16m. Illinois and Thailand are separated by a distance of 8545 mi. This flight may include one or multiple stops.

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

    The cheapest airline one-way is Air India, with whom users have recently found tickets for as low as $424. However, be on the lookout for offers from IndiGo and Cathay Pacific, as they are both options that can get you from Illinois to Thailand for a low price.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Illinois to Thailand (average of $642). Flying from Illinois to Thailand in June is currently the most expensive (average of $867). 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 Illinois to Thailand

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 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 noviembre 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air IndiaCheapest$619Average$919FlexibilityNo cancel feeOn-timeN/A
Cathay PacificCheapest$674Average$1,037FlexibilityNo cancel feeOn-time72%
ANACheapest$681Average$868FlexibilityNo cancel feeOn-time80%
Korean AirCheapest$698Average$1,080FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$708Average$890FlexibilityNo cancel feeOn-time69%
IndiGoCheapest$735Average$1,260FlexibilityNo cancel feeOn-time80%
Turkish AirlinesCheapest$742Average$994FlexibilityNo cancel feeOn-time77%
DeltaCheapest$745Average$1,257FlexibilityNo cancel feeOn-timeN/A
Etihad AirwaysCheapest$800Average$1,133FlexibilityNo cancel feeOn-time75%
Japan AirlinesCheapest$825Average$976FlexibilityNo cancel feeOn-time79%

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