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Illinois

$512+ 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 12/23. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — ORD
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap 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 December 12, 2025.

This Delta deal was found by Cheapflights users on 12/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2012:55 amBKK - ORD
2 stops33h 41mDelta
Sat 3/147:20 amORD - BKK
2 stops29h 35mDelta
Deal found 12/11$980
This FlightHub deal was found by Cheapflights users on 12/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/239:55 amBKK - ORD
1 stop34h 35mJapan Airlines
Sun 1/117:00 amORD - BKK
2 stops33h 00mJapan Airlines
Deal found 12/11$1,026
This Korean Air deal was found by Cheapflights users on 12/11. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/222:05 amBKK - ORD
1 stop19h 25mKorean Air
Sun 1/1111:25 amORD - BKK
1 stop24h 30mKorean Air
Deal found 12/11$1,044
This oojo deal was found by Cheapflights users on 12/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1511:50 amCNX - ORD
1 stop20h 45mEVA Air
Thu 1/156:06 pmORD - CNX
2 stops27h 29mEVA Air
Deal found 12/10$1,050
This Kiwi.com deal was found by Cheapflights users on 12/11. 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.
Sun 12/144:50 pmDMK - ORD
2 stops31h 40mMultiple Airlines
Mon 1/191:10 pmORD - DMK
2 stops28h 25mMultiple Airlines
Deal found 12/11$1,070
This ANA deal was found by Cheapflights users on 12/10. 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 ANA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1410:25 pmBKK - ORD
1 stop21h 55mANA
Sun 1/114:25 pmORD - BKK
1 stop23h 45mANA
Deal found 12/10$1,074
This Kiwi.com deal was found by Cheapflights users on 12/11. 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.
Sat 12/135:50 pmBKK - ORD
2 stops25h 31mMultiple Airlines
Fri 1/161:30 pmORD - BKK
1 stop29h 20mMultiple Airlines
Deal found 12/11$1,076
This Delta deal was found by Cheapflights users on 12/10. 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.
Mon 12/222:05 amBKK - ORD
2 stops32h 31mDelta
Sun 1/117:30 amORD - BKK
2 stops28h 25mDelta
Deal found 12/10$1,078
This Delta deal was found by Cheapflights users on 12/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1412:55 amBKK - ORD
2 stops29h 20mDelta
Fri 1/1611:25 amORD - BKK
1 stop24h 30mDelta
Deal found 12/11$1,079
This Kiwi.com deal was found by Cheapflights users on 12/11. 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.
Mon 12/1510:25 pmBKK - ORD
1 stop21h 55mMultiple Airlines
Wed 1/141:30 pmORD - BKK
1 stop29h 20mMultiple Airlines
Deal found 12/11$1,081
This Kiwi.com deal was found by Cheapflights users on 12/11. 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.
Sun 12/145:55 pmBKK - ORD
2 stops30h 35mAir India
Fri 1/161:30 pmORD - BKK
1 stop29h 20mAir India
Deal found 12/11$1,082
This Kiwi.com deal was found by Cheapflights users on 12/11. 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.
Fri 12/1212:50 pmBKK - ORD
1 stop19h 45mMultiple Airlines
Wed 1/141:30 pmORD - BKK
1 stop29h 20mMultiple Airlines
Deal found 12/11$1,083

Find flight deals from Thailand to Illinois

Keep the following information in mind while searching for Thailand to Illinois flight deals. Data was last updated December 12, 2025.

Round-trip from

$788
(SmartFares)

One-way from

$512
(FlightHub)

Popular in

January

Cheapest in

February

Average price

$1,199
From Thailand to Illinois
Search Deals
One-way flight from Thailand to Illinois
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($29 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 12, 2025.
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 3/19

4:50 pm-12:30 pm

2 stops31h 40m

Chicago O'Hare Intl

Wed 3/25

2:30 pm-2:30 am

1 stop24h 00m

$974

BangkokChicago

DMK - ORD

DMKORD

Bangkok Don Mueang Intl

Tue 3/17

4:50 pm-12:30 pm

2 stops31h 40m

Chicago O'Hare Intl

Wed 3/25

2:30 pm-2:30 am

1 stop24h 00m

$976

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Sun 3/15

11:15 pm-9:40 am

1 stop22h 25m

Chicago O'Hare Intl

Mon 3/23

12:25 pm-11:20 pm

1 stop22h 55m

$978

BangkokChicago

DMK - ORD

DMKORD

Bangkok Don Mueang Intl

Tue 3/17

4:50 pm-12:30 pm

2 stops31h 40m

Chicago O'Hare Intl

Sun 3/22

2:30 pm-6:35 am

2 stops28h 05m

$995

BangkokChicago

DMK - ORD

DMKORD

Bangkok Don Mueang Intl

Thu 3/19

4:50 pm-12:30 pm

2 stops31h 40m

Chicago O'Hare Intl

Mon 3/23

2:30 pm-2:30 am

1 stop24h 00m

$999

BangkokChicago

DMK - ORD

DMKORD

Bangkok Don Mueang Intl

Tue 3/17

4:50 pm-12:30 pm

2 stops31h 40m

Chicago O'Hare Intl

Mon 3/23

2:30 pm-2:30 am

1 stop24h 00m

$1,002

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Sun 3/15

12:55 am-8:37 pm

2 stops31h 42m

Chicago O'Hare Intl

Thu 3/26

7:20 am-12:45 am

2 stops29h 25m

$1,043

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Tue 1/20

9:10 am-7:20 am

1 stop35h 10m

Chicago O'Hare Intl

Sun 7/12

6:30 am-4:35 am

2 stops34h 05m

$1,043

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Thu 3/19

11:15 pm-1:16 pm

2 stops26h 01m

Chicago O'Hare Intl

Wed 3/25

7:20 am-12:55 am

2 stops29h 35m

$1,043

Phuket CitySt. Louis

HKT - STL

HKTSTL

Phuket City

Tue 4/7

11:25 pm-12:18 am

2 stops36h 53m

Lambert-St Louis

Fri 4/10

6:32 am-10:10 pm

2 stops27h 38m

$1,055

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

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 $869). 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 December 12, 2025.

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 evening tend to be the most expensive. A flight at noon could potentially save you up to 64% 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 December 16, 2024.

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 December 12, 2025.
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
8.5
Very good
1,296 reviews

Food

8.1

Boarding

8.4

Comfort

8.3

Overall

8.5

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.
EVA Air
8.5
Very good
1,296 reviews
EVA Air
8.5
Very good
1,296 reviews

Food

8.1

Boarding

8.4

Comfort

8.3

Overall

8.5

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.
Korean Air
8.4
Very good
1,184 reviews
EVA Air
8.5
Very good
1,296 reviews

Food

8.1

Boarding

8.4

Comfort

8.3

Overall

8.5

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.
ANA
8.4
Very good
1,021 reviews
EVA Air
8.5
Very good
1,296 reviews

Food

8.1

Boarding

8.4

Comfort

8.3

Overall

8.5

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.
Japan Airlines
8.3
Very good
1,653 reviews
EVA Air
8.5
Very good
1,296 reviews

Food

8.1

Boarding

8.4

Comfort

8.3

Overall

8.5

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.
Thai Airways
7.8
Good
366 reviews
EVA Air
8.5
Very good
1,296 reviews

Food

8.1

Boarding

8.4

Comfort

8.3

Overall

8.5

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.

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 22h 25m. 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 Philippine Airlines ($457), Korean Air ($467), and Air Canada ($473).

  • 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 $869). 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest$681Average$1,157FlexibilityNo cancel feeOn-time79%
Korean AirCheapest$902Average$1,040FlexibilityNo cancel feeOn-time81%
ANACheapest$983Average$1,096FlexibilityNo cancel feeOn-time80%
EVA AirCheapest$993Average$1,168FlexibilityNo cancel feeOn-time74%
Thai AirwaysCheapest$994Average$1,151FlexibilityNo cancel feeOn-time77%
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%

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