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Illinois

$528+ 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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — ORD
Feb 14 — Feb 211
Sat 2/14
Sat 2/21
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 January 15, 2026.

Round-trip from

$922
(Gotogate)

One-way from

$528
(Kiwi.com)

Popular in

August

Cheapest in

February

Average price

$1,242
From Thailand to Illinois
Search Deals
One-way flight from Thailand to Illinois
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($64 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 January 15, 2026.

This Gotogate deal was found by Cheapflights users on 1/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/52:00 pm
BKK
-
ORD
2 stops37h 41m
Air Canada
Wed 2/187:15 am
ORD
-
BKK
2 stops34h 15m
Air Canada
Deal found 1/14$975
This Booking.com deal was found by Cheapflights users on 1/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/1010:50 am
BKK
-
ORD
2 stops44h 35m
Multiple Airlines
Sun 2/151:30 pm
ORD
-
BKK
1 stop41h 50m
Multiple Airlines
Deal found 1/13$976
This Kiwi.com deal was found by Cheapflights users on 1/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/91:05 pm
BKK
-
ORD
2 stops31h 30m
Multiple Airlines
Thu 3/122:10 pm
ORD
-
BKK
1 stop21h 15m
Multiple Airlines
Deal found 1/13$986
This Kiwi.com deal was found by Cheapflights users on 1/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/91:05 pm
BKK
-
ORD
2 stops31h 30m
Multiple Airlines
Mon 3/92:10 pm
ORD
-
BKK
1 stop21h 15m
Multiple Airlines
Deal found 1/13$989
This Kiwi.com deal was found by Cheapflights users on 1/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/511:00 pm
DMK
-
ORD
2 stops45h 35m
Multiple Airlines
Wed 2/181:30 pm
ORD
-
DMK
1 stop24h 00m
Multiple Airlines
Deal found 1/14$990
This China Airlines deal was found by Cheapflights users on 1/15. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/205:30 pm
BKK
-
ORD
2 stops25h 30m
Multiple Airlines
Mon 11/25:55 pm
ORD
-
BKK
2 stops26h 55m
Multiple Airlines
Deal found 1/15$992
This CheapOair deal was found by Cheapflights users on 1/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/118:15 am
BKK
-
ORD
1 stop19h 26m
Multiple Airlines
Sat 4/112:00 pm
ORD
-
BKK
1 stop21h 50m
Multiple Airlines
Deal found 1/15$993
This Kiwi.com deal was found by Cheapflights users on 1/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1110:10 am
BKK
-
ORD
2 stops34h 25m
Multiple Airlines
Wed 3/112:10 pm
ORD
-
BKK
1 stop21h 15m
Multiple Airlines
Deal found 1/15$994
This oojo deal was found by Cheapflights users on 1/13. 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.
Tue 9/111:35 am
CNX
-
ORD
2 stops36h 33m
EVA Air
Wed 9/308:42 pm
ORD
-
CNX
2 stops25h 43m
EVA Air
Deal found 1/13$995
This oojo deal was found by Cheapflights users on 1/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/211:35 am
CNX
-
ORD
2 stops31h 04m
EVA Air
Thu 4/238:48 pm
ORD
-
CNX
2 stops25h 37m
EVA Air
Deal found 1/14$996
This Kiwi.com deal was found by Cheapflights users on 1/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/191:05 pm
BKK
-
ORD
2 stops31h 30m
Multiple Airlines
Tue 5/122:00 pm
ORD
-
BKK
1 stop21h 50m
Multiple Airlines
Deal found 1/15$997
This Kiwi.com deal was found by Cheapflights users on 1/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/151:05 pm
BKK
-
ORD
2 stops31h 30m
Multiple Airlines
Tue 5/122:00 pm
ORD
-
BKK
1 stop21h 50m
Multiple Airlines
Deal found 1/15$998

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 January 15, 2026.
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

DMK - ORD

DMKORD

Bangkok Don Mueang Intl

Thu 2/5

11:00 pm-7:35 am

2 stops45h 35m

Chicago O'Hare Intl

Wed 2/18

1:30 pm-2:30 am

1 stop24h 00m

$990

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Thu 4/9

11:20 am-6:39 am

2 stops31h 19m

Chicago O'Hare Intl

Sun 4/26

7:15 pm-10:20 am

2 stops27h 05m

$990

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Sat 6/13

11:20 am-6:20 am

2 stops31h 00m

Chicago O'Hare Intl

Tue 7/21

6:53 pm-10:20 am

2 stops27h 27m

$994

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Thu 4/2

11:20 am-6:39 am

2 stops31h 19m

Chicago O'Hare Intl

Thu 4/23

3:37 pm-10:20 am

2 stops30h 43m

$994

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Thu 4/2

11:35 am-6:39 am

2 stops31h 04m

Chicago O'Hare Intl

Thu 4/23

8:48 pm-10:25 am

2 stops25h 37m

$996

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Mon 2/16

5:50 pm-4:33 pm

2 stops35h 43m

Chicago O'Hare Intl

Mon 2/23

5:29 pm-9:50 am

2 stops27h 21m

$996

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Tue 2/10

10:50 am-7:35 am

2 stops33h 45m

Chicago O'Hare Intl

Tue 3/10

2:10 pm-11:25 pm

1 stop21h 15m

$999

BangkokChicago

DMK - ORD

DMKORD

Bangkok Don Mueang Intl

Mon 4/13

8:50 pm-3:05 pm

2 stops30h 15m

Chicago O'Hare Intl

Mon 4/27

1:10 pm-2:35 am

1 stop25h 25m

$1,005

BangkokChicago

DMK - ORD

DMKORD

Bangkok Don Mueang Intl

Wed 2/11

8:10 pm-2:30 pm

2 stops31h 20m

Chicago O'Hare Intl

Mon 3/16

2:30 pm-2:30 am

1 stop24h 00m

$1,008

BangkokChicago

DMK - ORD

DMKORD

Bangkok Don Mueang Intl

Tue 2/10

9:00 pm-2:30 pm

2 stops30h 30m

Chicago O'Hare Intl

Mon 3/16

2:30 pm-2:30 am

1 stop24h 00m

$1,010

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/13

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, June is the cheapest month in which you can book a flight from Thailand to Illinois (average of $735). Flying from Thailand to Illinois in August is currently the most expensive (average of $1,061). 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 January 15, 2026.

One of the essential ways to save on airfare from Thailand to Illinois is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 38% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Thailand to Illinois. Price data was last updated on March 30, 2025.

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

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 January 15, 2026.
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
1,321 reviews

Boarding

8.4

Overall

8.4

Entertainment

8.0

Comfort

8.3

Food

8.1

Crew

8.6

Reviews

1 / 20
6.0
Good

Hannah,Jan 2026

TPE - SFO

I like the flight attendants the most. The are very helpful.
EVA Air
8.4
Very good
1,321 reviews
EVA Air
8.4
Very good
1,321 reviews

Boarding

8.4

Overall

8.4

Entertainment

8.0

Comfort

8.3

Food

8.1

Crew

8.6

Reviews

1 / 20
6.0
Good

Hannah,Jan 2026

TPE - SFO

I like the flight attendants the most. The are very helpful.
Korean Air
8.4
Very good
1,187 reviews
EVA Air
8.4
Very good
1,321 reviews

Boarding

8.4

Overall

8.4

Entertainment

8.0

Comfort

8.3

Food

8.1

Crew

8.6

Reviews

1 / 20
6.0
Good

Hannah,Jan 2026

TPE - SFO

I like the flight attendants the most. The are very helpful.
ANA
8.4
Very good
1,072 reviews
EVA Air
8.4
Very good
1,321 reviews

Boarding

8.4

Overall

8.4

Entertainment

8.0

Comfort

8.3

Food

8.1

Crew

8.6

Reviews

1 / 20
6.0
Good

Hannah,Jan 2026

TPE - SFO

I like the flight attendants the most. The are very helpful.
Japan Airlines
8.3
Very good
1,685 reviews
EVA Air
8.4
Very good
1,321 reviews

Boarding

8.4

Overall

8.4

Entertainment

8.0

Comfort

8.3

Food

8.1

Crew

8.6

Reviews

1 / 20
6.0
Good

Hannah,Jan 2026

TPE - SFO

I like the flight attendants the most. The are very helpful.
Cathay Pacific
7.6
Good
1,130 reviews
EVA Air
8.4
Very good
1,321 reviews

Boarding

8.4

Overall

8.4

Entertainment

8.0

Comfort

8.3

Food

8.1

Crew

8.6

Reviews

1 / 20
6.0
Good

Hannah,Jan 2026

TPE - SFO

I like the flight attendants the most. The are very helpful.

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 25h 20m. Airlines will cover a distance of 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 Thailand to Illinois one-way?

    The cheapest airlines for a one-way flight from Thailand to Illinois are Air Canada ($450), Philippine Airlines ($457), and Korean Air ($467).

  • 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, June is the cheapest month in which you can book a flight from Thailand to Illinois (average of $735). Flying from Thailand to Illinois in August is currently the most expensive (average of $1,061). 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 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 January 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest$681Average$1,261FlexibilityNo cancel feeOn-time79%
Korean AirCheapest$902Average$1,040FlexibilityNo cancel feeOn-time81%
ANACheapest$983Average$1,096FlexibilityNo cancel feeOn-time80%
EVA AirCheapest$993Average$1,170FlexibilityNo cancel feeOn-time74%
United AirlinesCheapest$1,003Average$1,109FlexibilityNo cancel feeOn-time69%
Cathay PacificCheapest$1,036Average$1,105FlexibilityNo cancel feeOn-time72%
Turkish AirlinesCheapest$1,087Average$1,271FlexibilityNo cancel feeOn-time77%
Thai AirwaysCheapest$1,100Average$1,160FlexibilityNo cancel feeOn-time77%

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