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 on average. If you fly from Moline (another popular airport in Illinois) to Bangkok Suvarnabhumi Airport, then the average flight time is 27h 41m.

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

Air India, IndiGo, and Japan Airlines are the most popular carriers operating from Illinois to Thailand

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 32% of people opting to fly with this airline when traveling to Thailand. Keep in mind that there are 18 different airlines that fly to Thailand on a routine basis, so you have a few additional options to choose from.

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 18 operators available for flights from Illinois to Thailand as of November 2025.

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.

$391 Cheap Flights from Illinois to Thailand in 2025/26

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Find the cheapest flights from Illinois to Thailand

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

1:30 pm - 7:30 pmORD-HKT

41h 00m1 stop

9:10 am - 11:30 amHKT-ORD

39h 20m2 stops

$562Air India

Find Deal

Mon, Jan 19 - Tue, Jan 27

1:30 pm - 7:30 pmORD-HKT

41h 00m1 stop

9:10 am - 11:30 amHKT-ORD

39h 20m2 stops

$589Air India

Find Deal

Mon, Feb 16 - Tue, Feb 24

2:35 pm - 6:50 pmORD-CNX

39h 15m1 stop

10:35 am - 1:55 pmCNX-ORD

39h 20m1 stop

$738Cathay Pacific

Find Deal

Wed, Feb 18 - Wed, Mar 11

2:35 pm - 9:50 amORD-CNX

30h 15m1 stop

7:40 pm - 12:55 pmCNX-ORD

30h 15m1 stop

$788Cathay Pacific

Find Deal

Thu, Feb 19 - Thu, Feb 26

6:00 am - 4:35 amORD-BKK

34h 35m2 stops

9:35 am - 3:15 pmBKK-ORD

41h 40m1 stop

$800United Airlines

Find Deal

Wed, May 13 - Tue, May 19

8:20 pm - 8:40 amORD-BKK

23h 20m1 stop

10:10 am - 10:05 amBKK-ORD

36h 55m1 stop

$803Turkish Airlines

Find Deal

Sun, Feb 22 - Tue, Mar 3

7:15 am - 11:55 pmORD-BKK

28h 40m2 stops

9:35 am - 8:40 amBKK-ORD

35h 05m1 stop

$804United Airlines

Find Deal

Thu, Apr 30 - Mon, May 11

4:25 pm - 6:30 amORD-BKK

25h 05m1 stop

10:25 pm - 7:20 amBKK-ORD

21h 55m1 stop

$805ANA

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Mon, Jan 26 - Wed, Feb 18

8:00 am - 11:55 pmORD-BKK

27h 55m2 stops

9:35 pm - 8:40 amBKK-ORD

23h 05m1 stop

$807ANA

Find Deal

Wed, Apr 29 - Wed, May 6

11:50 am - 4:20 amORD-BKK

27h 30m1 stop

10:10 am - 10:05 amBKK-ORD

36h 55m1 stop

$808Turkish Airlines

Find Deal

Fri, Jan 30 - Wed, Mar 4

United Airlines flights from Illinois to Thailand

Our best United Airlines deals on Illinois to Thailand flight tickets

United Airlines

May 13

ORD6:00 amChicago O'Hare Intl

34h 35m

2 stops

BKK4:35 amBangkok Suvarnabhumi

May 19

BKK9:35 amBangkok Suvarnabhumi

41h 40m

1 stop

ORD3:15 pmChicago O'Hare Intl

$800

Find similar

United Airlines

Apr 30

ORD7:15 amChicago O'Hare Intl

28h 40m

2 stops

BKK11:55 pmBangkok Suvarnabhumi

May 11

BKK9:35 amBangkok Suvarnabhumi

35h 05m

1 stop

ORD8:40 amChicago O'Hare Intl

$804

Find similar

United Airlines

Apr 6

ORD5:45 pmChicago O'Hare Intl

22h 50m

1 stop

BKK4:35 amBangkok Suvarnabhumi

Apr 22

BKK9:35 amBangkok Suvarnabhumi

31h 26m

2 stops

ORD5:01 amChicago O'Hare Intl

$806

Find similar

Turkish Airlines flights from Illinois to Thailand

Our best Turkish Airlines deals on Illinois to Thailand flight tickets

Turkish Airlines

Feb 22

ORD8:20 pmChicago O'Hare Intl

23h 20m

1 stop

BKK8:40 amBangkok Suvarnabhumi

Mar 3

BKK10:10 amBangkok Suvarnabhumi

36h 55m

1 stop

ORD10:05 amChicago O'Hare Intl

$803

Find similar

Turkish Airlines

Jan 30

ORD11:50 amChicago O'Hare Intl

27h 30m

1 stop

BKK4:20 amBangkok Suvarnabhumi

Mar 4

BKK10:10 amBangkok Suvarnabhumi

36h 55m

1 stop

ORD10:05 amChicago O'Hare Intl

$808

Find similar

Turkish Airlines

Apr 11

ORD8:10 pmChicago O'Hare Intl

31h 15m

1 stop

BKK3:25 pmBangkok Suvarnabhumi

Apr 29

BKK11:15 amBangkok Suvarnabhumi

34h 25m

1 stop

ORD9:40 amChicago O'Hare Intl

$814

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoPhuket City

ORD - HKT

ORDHKT

Chicago O'Hare Intl

Mon 1/19

1:30 pm-7:30 pm

1 stop41h 00m

Phuket City

Tue 1/27

9:10 am-11:30 am

2 stops39h 20m

$562

ChicagoPhuket City

ORD - HKT

ORDHKT

Chicago O'Hare Intl

Mon 2/16

1:30 pm-7:30 pm

1 stop41h 00m

Phuket City

Tue 2/24

9:10 am-11:30 am

2 stops39h 20m

$589

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Wed 2/18

2:35 pm-6:50 pm

1 stop39h 15m

Chiang Mai

Wed 3/11

10:35 am-1:55 pm

1 stop39h 20m

$738

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Thu 2/19

2:35 pm-9:50 am

1 stop30h 15m

Chiang Mai

Thu 2/26

7:40 pm-12:55 pm

1 stop30h 15m

$788

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Wed 5/13

6:00 am-4:35 am

2 stops34h 35m

Bangkok Suvarnabhumi

Tue 5/19

9:35 am-3:15 pm

1 stop41h 40m

$800

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Sun 2/22

8:20 pm-8:40 am

1 stop23h 20m

Bangkok Suvarnabhumi

Tue 3/3

10:10 am-10:05 am

1 stop36h 55m

$803

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Thu 4/30

7:15 am-11:55 pm

2 stops28h 40m

Bangkok Suvarnabhumi

Mon 5/11

9:35 am-8:40 am

1 stop35h 05m

$804

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Mon 1/26

4:25 pm-6:30 am

1 stop25h 05m

Bangkok Suvarnabhumi

Wed 2/18

10:25 pm-7:20 am

1 stop21h 55m

$805

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Wed 4/29

8:00 am-11:55 pm

2 stops27h 55m

Bangkok Suvarnabhumi

Wed 5/6

9:35 pm-8:40 am

1 stop23h 05m

$807

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Fri 1/30

11:50 am-4:20 am

1 stop27h 30m

Bangkok Suvarnabhumi

Wed 3/4

10:10 am-10:05 am

1 stop36h 55m

$808

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 September is, on average, the cheapest month to fly to Thailand from Illinois, with most prices found around $821. If you are unable to visit Thailand during the month of September, then departing from Illinois during the month October is also very affordable. Most momondo users find prices during this month for around $837.

What is the cheapest day to depart on your flight to Thailand?

The cheapest day to depart on your flight to Thailand is on a Tuesday when prices can be found for as low as $1,009. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Thailand is Saturday, with ticket prices averaging around $1,223.

What is the cheapest time of day to depart on your flight to Thailand?

Flying to Thailand from Illinois at noon is the least expensive time of day to depart. momondo users have found prices as low as $962 when looking at flights departing at noon. In contrast, the most expensive time of day to depart to Thailand is in the evening when prices are around $1,115.

How far in advance should I book a flight 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 $1,002 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 $858 on momondo.

Can stopping save me money on Illinois to Thailand flights?

You could potentially save up to 24% 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

Direct flights	None

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

Search flight deals

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 18 operators available for flights from Illinois to Thailand as of November 2025.
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 $619	Free Cancellation	Rating 5.5 2,946 reviews	Search Air India flights
Cathay Pacific	PriceFrom $674	Free Cancellation	Rating 7.6 1,068 reviews	Search Cathay Pacific flights
ANA	PriceFrom $681	Free Cancellation	Rating 8.4 1,010 reviews	Search ANA flights
Korean Air	PriceFrom $698	Free Cancellation	Rating 8.4 1,170 reviews	Search Korean Air flights
United Airlines	PriceFrom $708	Free Cancellation	Rating 7.4 9,036 reviews	Search United Airlines flights
IndiGo	PriceFrom $735	Free Cancellation	Rating 6.9 498 reviews	Search IndiGo flights
Turkish Airlines	PriceFrom $742	Free Cancellation	Rating 7.3 4,050 reviews	Search Turkish Airlines flights
Delta	PriceFrom $745	Free Cancellation	Rating 7.9 7,999 reviews	Search Delta flights
Etihad Airways	PriceFrom $800	Free Cancellation	Rating 7.4 1,312 reviews	Search Etihad Airways flights
Japan Airlines	PriceFrom $825	Free Cancellation	Rating 8.3 1,625 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.