How long is the flight from Thailand to Illinois?

The flight from Thailand to Illinois depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Chiang Mai (a popular airport in Thailand) to Chicago O'Hare Intl Airport (the most popular airport in Illinois), then the flight time is 21h 10m on average. If you fly from Bangkok (another popular airport in Thailand) to Chicago O'Hare Intl Airport, then the average flight time is 24h 55m.

What is the cheapest airline that flies from Thailand to Illinois?

Qatar Airways, Malaysia Airlines, and Korean Air are the most popular carriers operating from Thailand to Illinois

What airlines fly to Illinois?

EVA Air, ANA and Japan Airlines are the top three most popular airlines that fly to Illinois from Thailand according to our data. EVA Air is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 6 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Thailand to Illinois?

Prices for flights from Thailand to Illinois refresh daily.

How many operators does momondo search for flights from Thailand to Illinois?

The number of operators available for flights from Thailand to Illinois is 6 as of June 2026.

How old do you have to be to fly from Thailand to Illinois?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Thailand to Illinois.

What documentation or ID do you need to fly to Illinois?

The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$600 Cheap Flights from Thailand to Illinois in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Thailand to Illinois

Round-trip

One-way

Last minute

Recent round-trip flight deals from Thailand to Illinois

Enter your travel dates to find the best prices.

3:45 pm - 7:29 pm

BKK

ORD

39h 44m

3 stops

6:00 am - 11:30 am

ORD

BKK

40h 30m

2 stops

$896United Airlines

Wed, Oct 21 - Wed, Nov 18

4:55 pm - 6:46 pm

BKK

ORD

38h 51m

3 stops

11:00 pm - 5:10 am

ORD

BKK

41h 10m

2 stops

$897United Airlines

Mon, Nov 9 - Mon, Nov 30

4:55 pm - 7:43 pm

BKK

ORD

39h 48m

3 stops

9:40 pm - 11:30 am

ORD

BKK

48h 50m

2 stops

$900United Airlines

Mon, Nov 2 - Mon, Nov 9

9:00 pm - 3:15 pm

BKK

ORD

55h 15m

2 stops

6:50 pm - 7:55 pm

ORD

BKK

36h 05m

2 stops

$949Oman Air

Wed, Dec 2 - Mon, Dec 28

9:40 am - 10:10 pm

BKK

MDW

25h 30m

2 stops

10:35 am - 1:25 pm

MDW

BKK

37h 50m

2 stops

$1,093Delta

Mon, Nov 2 - Mon, Nov 9

11:15 pm - 12:33 pm

BKK

MDW

26h 18m

2 stops

5:59 pm - 11:20 pm

MDW

BKK

40h 21m

2 stops

$1,094Delta

Wed, Dec 2 - Fri, Jan 1

9:40 am - 3:30 pm

BKK

STL

42h 50m

2 stops

4:15 pm - 6:30 am

STL

BKK

49h 15m

2 stops

$1,117Air Canada

Mon, Dec 7 - Sat, Jan 16

9:10 pm - 2:43 pm

CNX

ORD

29h 33m

2 stops

3:40 pm - 3:40 pm

ORD

CNX

35h 00m

2 stops

$1,129Air Canada

Tue, Oct 6 - Tue, Nov 3

11:35 am - 8:45 pm

CNX

ORD

21h 10m

1 stop

11:30 pm - 10:35 am

ORD

CNX

22h 05m

1 stop

$1,251EVA Air

Tue, Oct 6 - Tue, Nov 3

11:35 am - 9:10 pm

CNX

ORD

21h 35m

1 stop

12:30 am - 10:25 am

ORD

CNX

21h 55m

1 stop

$1,291EVA Air

Sun, Jul 12 - Fri, Jul 17

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Philippine Airlines flights from Thailand to Illinois

Our best Philippine Airlines deals on Thailand to Illinois flight tickets

Philippine Airlines

Jul 3

BKK11:40 pmBangkok Suvarnabhumi

41h 29m

2 stops

ORD5:09 amChicago O'Hare Intl

Jul 16

ORD3:18 pmChicago O'Hare Intl

39h 12m

2 stops

BKK6:30 pmBangkok Suvarnabhumi

$977

Philippine Airlines

Jul 3

BKK11:40 pmBangkok Suvarnabhumi

41h 29m

2 stops

ORD5:09 amChicago O'Hare Intl

Jul 16

ORD3:18 pmChicago O'Hare Intl

39h 12m

2 stops

BKK6:30 pmBangkok Suvarnabhumi

$978

Philippine Airlines

Sep 15

BKK11:40 pmBangkok Suvarnabhumi

41h 20m

2 stops

ORD5:00 amChicago O'Hare Intl

Oct 6

ORD3:49 pmChicago O'Hare Intl

32h 21m

2 stops

BKK12:10 pmBangkok Suvarnabhumi

$1,008

EVA Air flights from Thailand to Illinois

Our best EVA Air deals on Thailand to Illinois flight tickets

EVA Air

Oct 6

CNX11:35 amChiang Mai

21h 10m

1 stop

ORD8:45 pmChicago O'Hare Intl

Nov 3

ORD11:30 pmChicago O'Hare Intl

22h 05m

1 stop

CNX10:35 amChiang Mai

$1,251

EVA Air

Oct 6

CNX11:35 amChiang Mai

21h 10m

1 stop

ORD8:45 pmChicago O'Hare Intl

Nov 3

ORD11:30 pmChicago O'Hare Intl

22h 05m

1 stop

CNX10:35 amChiang Mai

$1,317

EVA Air

Oct 6

CNX11:35 amChiang Mai

21h 10m

1 stop

ORD8:45 pmChicago O'Hare Intl

Nov 3

ORD11:30 pmChicago O'Hare Intl

22h 05m

1 stop

CNX10:35 amChiang Mai

$1,324

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Wed 10/21

3:45 pm-7:29 pm

3 stops39h 44m

Chicago O'Hare Intl

Wed 11/18

6:00 am-11:30 am

2 stops40h 30m

$896

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Mon 11/9

4:55 pm-6:46 pm

3 stops38h 51m

Chicago O'Hare Intl

Mon 11/30

11:00 pm-5:10 am

2 stops41h 10m

$897

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Mon 11/2

4:55 pm-7:43 pm

3 stops39h 48m

Chicago O'Hare Intl

Mon 11/9

9:40 pm-11:30 am

2 stops48h 50m

$900

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Wed 12/2

9:00 pm-3:15 pm

2 stops55h 15m

Chicago O'Hare Intl

Mon 12/28

6:50 pm-7:55 pm

2 stops36h 05m

$949

BangkokChicago

BKK - MDW

BKKMDW

Bangkok Suvarnabhumi

Mon 11/2

9:40 am-10:10 pm

2 stops25h 30m

Chicago Midway

Mon 11/9

10:35 am-1:25 pm

2 stops37h 50m

$1,093

BangkokChicago

BKK - MDW

BKKMDW

Bangkok Suvarnabhumi

Wed 12/2

11:15 pm-12:33 pm

2 stops26h 18m

Chicago Midway

Fri 1/1

5:59 pm-11:20 pm

2 stops40h 21m

$1,094

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Mon 12/7

9:40 am-3:30 pm

2 stops42h 50m

Lambert-St Louis

Sat 1/16

4:15 pm-6:30 am

2 stops49h 15m

$1,117

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Tue 10/6

9:10 pm-2:43 pm

2 stops29h 33m

Chicago O'Hare Intl

Tue 11/3

3:40 pm-3:40 pm

2 stops35h 00m

$1,129

Quickest round-trip

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Tue 10/6

11:35 am-8:45 pm

1 stop21h 10m

Chicago O'Hare Intl

Tue 11/3

11:30 pm-10:35 am

1 stop22h 05m

$1,251

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Sun 7/12

11:35 am-9:10 pm

1 stop21h 35m

Chicago O'Hare Intl

Fri 7/17

12:30 am-10:25 am

1 stop21h 55m

$1,291

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Thailand to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Thailand is in February. Flight prices, which tend to average around $372, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of February, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $386.

How far in advance should I book a flight from Thailand to Illinois?

You are more likely to see cheaper flights to Illinois from Thailand when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $1,209 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Thailand for as low as $968 on momondo.

Can stopping save me money on Thailand to Illinois flights?

You could potentially save up to 5% on your flight if you consider stops on a Thailand to Illinois flight.

Cheap Thailand to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Thailand to Illinois

Fastest flight time	21h 10m
Direct flights	None

The fastest flight from Thailand to Illinois takes 21h 10m

There are no direct flights from Thailand to Illinois. There are no popular flight routes from Thailand to Illinois.

Search flight deals

Frequently asked questions about flying from Thailand to Illinois

When did momondo last update prices for flights from Thailand to Illinois?
Prices for flights from Thailand to Illinois refresh daily.
How many operators does momondo search for flights from Thailand to Illinois?
The number of operators available for flights from Thailand to Illinois is 6 as of June 2026.
How old do you have to be to fly from Thailand to Illinois?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Thailand to Illinois.
What documentation or ID do you need to fly to Illinois?
The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Thailand to Illinois

Compare and see reviews for airlines that fly from Thailand to Illinois with momondo

Airline	Rating	Free Cancellation	Price
Korean Air	PriceFrom $941	Free Cancellation	Rating 8.4 1,218 reviews	Search Korean Air flights
Japan Airlines	PriceFrom $946	Free Cancellation	Rating 8.3 1,841 reviews	Search Japan Airlines flights
EVA Air	PriceFrom $993	Free Cancellation	Rating 8.5 1,478 reviews	Search EVA Air flights
ANA	PriceFrom $1,068	Free Cancellation	Rating 8.3 1,245 reviews	Search ANA flights
United Airlines	PriceFrom $1,095	Free Cancellation	Rating 7.4 9,865 reviews	Search United Airlines flights
Thai Airways	PriceFrom $1,122	Free Cancellation	Rating 7.9 407 reviews	Search Thai Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Thailand to Illinois?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Thailand to Illinois for you.

Can I find flights from Thailand to Illinois with flexible booking policies on momondo?

momondo does allow users to show only those flights to Illinois from Thailand which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Thailand to Illinois?

momondo helps you find the best flight between Thailand and Illinois by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Thailand to Illinois right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Thailand to Illinois now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Illinois and let you know when they change.