How long is the flight from Illinois to Thailand?

The flight from Illinois to Thailand depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Chicago (a popular airport in Illinois) to Bangkok Suvarnabhumi Airport (the most popular airport in Thailand), then the flight time is 23h 05m on average. If you fly from Peoria (another popular airport in Illinois) to Bangkok Suvarnabhumi Airport, then the average flight time is 26h.

What airlines fly to Thailand?

EVA Air, ANA and Cathay Pacific are the top three most popular airlines that fly to Thailand from Illinois according to our data. EVA Air is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Thailand. Keep in mind that there are 16 different airlines that fly to Thailand on a routine basis, so you have a few additional options to choose from.

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

Delta, Etihad Airways, and Cathay Pacific are the most popular carriers operating from Illinois to Thailand

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

Prices for flights from Illinois to Thailand are updated daily.

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

There are 16 operators available for flights from Illinois to Thailand as of May 2026.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Thailand.

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

The required travel and health documents for your Thailand 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 Thailand. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$519 Cheap Flights from Illinois to Thailand in 2026

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Find the cheapest flights from Illinois to Thailand

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:10 pm - 6:05 am

ORD

CNX

27h 55m

1 stop

8:50 am - 7:55 am

CNX

ORD

36h 05m

1 stop

$918Etihad Airways

Mon, Oct 26 - Tue, Feb 16

6:54 pm - 11:30 am

STL

BKK

28h 36m

2 stops

9:35 pm - 12:49 pm

BKK

STL

27h 14m

2 stops

$998Multiple Airlines

Sun, Sep 6 - Tue, Sep 15

4:00 pm - 12:10 am

ORD

BKK

20h 10m

1 stop

7:10 pm - 1:55 pm

BKK

ORD

30h 45m

1 stop

$999Cathay Pacific

Sun, Aug 30 - Thu, Oct 1

4:15 pm - 2:00 pm

ORD

BKK

33h 45m

1 stop

7:55 am - 12:55 pm

BKK

ORD

18h 00m

1 stop

$1,000Cathay Pacific

Sun, Oct 18 - Thu, Nov 5

6:10 pm - 9:35 am

ORD

BKK

27h 25m

2 stops

7:00 am - 12:59 am

BKK

ORD

29h 59m

2 stops

$1,005United Airlines

Sat, Aug 8 - Wed, Aug 26

4:00 pm - 12:10 am

ORD

BKK

20h 10m

1 stop

12:35 pm - 1:55 pm

BKK

ORD

37h 20m

1 stop

$1,009Cathay Pacific

Tue, Aug 25 - Mon, Oct 5

9:30 pm - 9:35 am

ORD

BKK

48h 05m

2 stops

9:35 am - 5:06 am

BKK

ORD

31h 31m

2 stops

$1,010United Airlines

Fri, Aug 7 - Thu, Aug 27

12:10 pm - 1:05 am

ORD

BKK

24h 55m

1 stop

9:40 am - 9:30 am

BKK

ORD

35h 50m

1 stop

$1,011Delta

Wed, Oct 21 - Sun, Nov 1

9:20 pm - 6:05 am

ORD

CNX

20h 45m

1 stop

8:50 am - 7:55 am

CNX

ORD

36h 05m

1 stop

$1,011Etihad Airways

Mon, Oct 26 - Tue, Feb 16

7:10 am - 1:05 am

ORD

BKK

29h 55m

2 stops

11:30 pm - 9:30 am

BKK

ORD

22h 00m

1 stop

$1,015Delta

Wed, Sep 9 - Sun, Sep 27

SAUDIA flights from Illinois to Thailand

Our best SAUDIA deals on Illinois to Thailand flight tickets

SAUDIA

Jul 15

ORD1:00 pmChicago O'Hare Intl

47h 05m

2 stops

BKK12:05 amBangkok Suvarnabhumi

Jul 22

BKK3:20 pmBangkok Suvarnabhumi

42h 32m

2 stops

ORD9:52 pmChicago O'Hare Intl

$1,038

SAUDIA

Jun 9

ORD6:05 amChicago O'Hare Intl

43h 40m

2 stops

BKK1:45 pmBangkok Suvarnabhumi

Jun 15

BKK3:20 pmBangkok Suvarnabhumi

42h 28m

2 stops

ORD9:48 pmChicago O'Hare Intl

$1,055

SAUDIA

Jul 15

ORD1:00 pmChicago O'Hare Intl

47h 05m

2 stops

BKK12:05 amBangkok Suvarnabhumi

Jul 22

BKK3:20 pmBangkok Suvarnabhumi

42h 32m

2 stops

ORD9:52 pmChicago O'Hare Intl

$1,063

Etihad Airways flights from Illinois to Thailand

Our best Etihad Airways deals on Illinois to Thailand flight tickets

Etihad Airways

Oct 26

ORD2:10 pmChicago O'Hare Intl

27h 55m

1 stop

CNX6:05 amChiang Mai

Feb 16

CNX8:50 amChiang Mai

36h 05m

1 stop

ORD7:55 amChicago O'Hare Intl

$918

Etihad Airways

Oct 26

ORD9:20 pmChicago O'Hare Intl

20h 45m

1 stop

CNX6:05 amChiang Mai

Feb 16

CNX8:50 amChiang Mai

36h 05m

1 stop

ORD7:55 amChicago O'Hare Intl

$1,011

Etihad Airways

Sep 10

BMI3:01 pmBloomington-Normal

39h 09m

2 stops

BKK6:10 pmBangkok Suvarnabhumi

Sep 18

BKK3:05 pmBangkok Suvarnabhumi

35h 02m

2 stops

BMI2:07 pmBloomington-Normal

$1,031

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Mon 10/26

2:10 pm-6:05 am

1 stop27h 55m

Chiang Mai

Tue 2/16

8:50 am-7:55 am

1 stop36h 05m

$918

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Sun 9/6

6:54 pm-11:30 am

2 stops28h 36m

Bangkok Suvarnabhumi

Tue 9/15

9:35 pm-12:49 pm

2 stops27h 14m

$998

Quickest round-trip

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Sun 8/30

4:00 pm-12:10 am

1 stop20h 10m

Bangkok Suvarnabhumi

Thu 10/1

7:10 pm-1:55 pm

1 stop30h 45m

$999

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Sun 10/18

4:15 pm-2:00 pm

1 stop33h 45m

Bangkok Suvarnabhumi

Thu 11/5

7:55 am-12:55 pm

1 stop18h 00m

$1,000

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Sat 8/8

6:10 pm-9:35 am

2 stops27h 25m

Bangkok Suvarnabhumi

Wed 8/26

7:00 am-12:59 am

2 stops29h 59m

$1,005

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Tue 8/25

4:00 pm-12:10 am

1 stop20h 10m

Bangkok Suvarnabhumi

Mon 10/5

12:35 pm-1:55 pm

1 stop37h 20m

$1,009

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Fri 8/7

9:30 pm-9:35 am

2 stops48h 05m

Bangkok Suvarnabhumi

Thu 8/27

9:35 am-5:06 am

2 stops31h 31m

$1,010

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Wed 10/21

12:10 pm-1:05 am

1 stop24h 55m

Bangkok Suvarnabhumi

Sun 11/1

9:40 am-9:30 am

1 stop35h 50m

$1,011

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Mon 10/26

9:20 pm-6:05 am

1 stop20h 45m

Chiang Mai

Tue 2/16

8:50 am-7:55 am

1 stop36h 05m

$1,011

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Wed 9/9

7:10 am-1:05 am

2 stops29h 55m

Bangkok Suvarnabhumi

Sun 9/27

11:30 pm-9:30 am

1 stop22h 00m

$1,015

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 Illinois to Thailand

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 Thailand?

The month of February is, on average, the cheapest month to fly to Thailand from Illinois, with most prices found around $872. If you are unable to visit Thailand during the month of February, then departing from Illinois during the month October is also very affordable. Most momondo users find prices during this month for around $926.

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

You are more likely to see cheaper flights to Thailand from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Thailand for around $962 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Thailand from Illinois for as low as $828 on momondo.

Can stopping save me money on Illinois to Thailand flights?

You could potentially save up to 13% on your flight if you consider stops on a Illinois to Thailand flight.

Cheap Illinois to Thailand flight deals and tips

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

Fastest flight time	19h 55m
Direct flights	None

The fastest flight from Illinois to Thailand takes 19h 55m

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

Search flight deals

Frequently asked questions about flying from Illinois to Thailand

When did momondo last update prices for flights from Illinois to Thailand?
Prices for flights from Illinois to Thailand are updated daily.
How many operators does momondo search for flights from Illinois to Thailand?
There are 16 operators available for flights from Illinois to Thailand as of May 2026.
How old do you have to be to fly from Illinois to Thailand?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Thailand.
What documentation or ID do you need to fly to Thailand?
The required travel and health documents for your Thailand 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 Thailand. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Illinois to Thailand

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

Airline	Rating	Free Cancellation	Price
Air India	PriceFrom $606	Free Cancellation	Rating 5.5 2,957 reviews	Search Air India flights
Cathay Pacific	PriceFrom $665	Free Cancellation	Rating 7.6 1,329 reviews	Search Cathay Pacific flights
ANA	PriceFrom $680	Free Cancellation	Rating 8.3 1,208 reviews	Search ANA flights
Korean Air	PriceFrom $697	Free Cancellation	Rating 8.4 1,217 reviews	Search Korean Air flights
United Airlines	PriceFrom $703	Free Cancellation	Rating 7.4 9,701 reviews	Search United Airlines flights
Turkish Airlines	PriceFrom $710	Free Cancellation	Rating 7.4 4,362 reviews	Search Turkish Airlines flights
Delta	PriceFrom $749	Free Cancellation	Rating 7.9 8,447 reviews	Search Delta flights
American Airlines	PriceFrom $790	Free Cancellation	Rating 7.1 11,664 reviews	Search American Airlines flights
EVA Air	PriceFrom $806	Free Cancellation	Rating 8.5 1,445 reviews	Search EVA Air flights
Japan Airlines	PriceFrom $815	Free Cancellation	Rating 8.3 1,819 reviews	Search Japan Airlines flights

Why use momondo?

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

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 Illinois to Thailand for you.

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

Yes. momondo allows you to filter the results for Illinois to Thailand flights to just show those with flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Thailand from Illinois.

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

Yes momondo offers price alerts on flights to Thailand from Illinois. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.