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 22h 15m on average. If you fly from Peoria (another popular airport in Illinois) to Bangkok Suvarnabhumi Airport, then the average flight time is 30h 10m.

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

Cathay Pacific, Delta, and United 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 34% 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.

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 July 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.

$452 Cheap Flights from Illinois to Thailand in 2026

Discover deals from 900+ travel sites with momondo.

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.

4:00 pm - 10:50 am

ORD

HKT

30h 50m

1 stop

11:50 am - 2:20 pm

HKT

ORD

38h 30m

1 stop

$866Cathay Pacific

Tue, Aug 11 - Sat, Sep 5

4:00 pm - 10:50 am

ORD

HKT

30h 50m

1 stop

6:20 pm - 2:20 pm

HKT

ORD

32h 00m

1 stop

$876Cathay Pacific

Tue, Aug 11 - Mon, Sep 7

4:00 pm - 10:50 am

ORD

HKT

30h 50m

1 stop

11:50 am - 2:20 pm

HKT

ORD

38h 30m

1 stop

$877Cathay Pacific

Tue, Aug 11 - Tue, Sep 8

5:45 pm - 12:10 pm

ORD

HKT

30h 25m

2 stops

7:10 pm - 2:55 pm

HKT

ORD

31h 45m

2 stops

$915Multiple Airlines

Tue, Aug 11 - Mon, Sep 7

5:45 pm - 12:10 pm

ORD

HKT

30h 25m

2 stops

9:55 pm - 8:40 am

HKT

ORD

46h 45m

2 stops

$916Multiple Airlines

Thu, Aug 20 - Mon, Aug 24

2:00 pm - 11:15 am

ORD

CNX

33h 15m

2 stops

11:55 am - 8:35 am

CNX

ORD

32h 40m

2 stops

$947Etihad Airways

Tue, Sep 22 - Fri, Oct 2

9:10 pm - 7:10 pm

ORD

CNX

34h 00m

2 stops

2:35 pm - 8:35 am

CNX

ORD

30h 00m

2 stops

$969Etihad Airways

Tue, Sep 8 - Tue, Sep 22

6:00 am - 10:55 pm

MDW

CNX

27h 55m

2 stops

12:15 am - 11:56 am

CNX

MDW

24h 41m

2 stops

$994Delta

Thu, Nov 12 - Tue, Nov 17

6:00 am - 10:55 pm

MDW

CNX

27h 55m

2 stops

12:15 am - 11:56 am

CNX

MDW

24h 41m

2 stops

$995Delta

Thu, Nov 12 - Tue, Nov 17

11:15 am - 11:20 pm

ORD

BKK

23h 05m

1 stop

9:30 pm - 8:40 am

BKK

ORD

24h 10m

1 stop

$1,034Korean Air

Fri, Nov 27 - Sat, Mar 13

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Delta flights from Illinois to Thailand

Our best Delta deals on Illinois to Thailand flight tickets

Delta

Nov 12

ORD5:30 amChicago O'Hare Intl

28h 25m

2 stops

CNX10:55 pmChiang Mai

Nov 17

CNX12:15 amChiang Mai

21h 15m

1 stop

ORD8:30 amChicago O'Hare Intl

$960

Delta

Nov 12

ORD5:30 amChicago O'Hare Intl

28h 25m

2 stops

CNX10:55 pmChiang Mai

Nov 17

CNX12:15 amChiang Mai

36h 15m

2 stops

ORD11:30 pmChicago O'Hare Intl

$970

Delta

Nov 12

ORD5:30 amChicago O'Hare Intl

28h 25m

2 stops

CNX10:55 pmChiang Mai

Nov 17

CNX12:15 amChiang Mai

21h 15m

1 stop

ORD8:30 amChicago O'Hare Intl

$985

Qatar Airways flights from Illinois to Thailand

Our best Qatar Airways deals on Illinois to Thailand flight tickets

Qatar Airways

Sep 14

STL6:29 amLambert-St Louis

35h 51m

2 stops

BKK6:20 amBangkok Suvarnabhumi

Oct 12

BKK3:00 amBangkok Suvarnabhumi

32h 59m

2 stops

STL11:59 pmLambert-St Louis

$1,189

Qatar Airways

Aug 17

STL6:02 amLambert-St Louis

37h 33m

2 stops

BKK7:35 amBangkok Suvarnabhumi

Sep 2

BKK3:00 amBangkok Suvarnabhumi

33h 14m

2 stops

STL12:14 amLambert-St Louis

$1,199

Qatar Airways

Jul 16

ORD7:20 pmChicago O'Hare Intl

35h 10m

2 stops

HKT6:30 pmPhuket City

Jul 19

HKT8:30 pmPhuket City

30h 35m

1 stop

ORD3:05 pmChicago O'Hare Intl

$1,734

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoPhuket City

ORD - HKT

ORDHKT

Chicago O'Hare Intl

Tue 8/11

4:00 pm-10:50 am

1 stop30h 50m

Phuket City

Sat 9/5

11:50 am-2:20 pm

1 stop38h 30m

$866

ChicagoPhuket City

ORD - HKT

ORDHKT

Chicago O'Hare Intl

Tue 8/11

4:00 pm-10:50 am

1 stop30h 50m

Phuket City

Mon 9/7

6:20 pm-2:20 pm

1 stop32h 00m

$876

ChicagoPhuket City

ORD - HKT

ORDHKT

Chicago O'Hare Intl

Tue 8/11

4:00 pm-10:50 am

1 stop30h 50m

Phuket City

Tue 9/8

11:50 am-2:20 pm

1 stop38h 30m

$877

ChicagoPhuket City

ORD - HKT

ORDHKT

Chicago O'Hare Intl

Tue 8/11

5:45 pm-12:10 pm

2 stops30h 25m

Phuket City

Mon 9/7

7:10 pm-2:55 pm

2 stops31h 45m

$915

ChicagoPhuket City

ORD - HKT

ORDHKT

Chicago O'Hare Intl

Thu 8/20

5:45 pm-12:10 pm

2 stops30h 25m

Phuket City

Mon 8/24

9:55 pm-8:40 am

2 stops46h 45m

$916

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Tue 9/22

2:00 pm-11:15 am

2 stops33h 15m

Chiang Mai

Fri 10/2

11:55 am-8:35 am

2 stops32h 40m

$947

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Tue 9/8

9:10 pm-7:10 pm

2 stops34h 00m

Chiang Mai

Tue 9/22

2:35 pm-8:35 am

2 stops30h 00m

$969

ChicagoChiang Mai

MDW - CNX

MDWCNX

Chicago Midway

Thu 11/12

6:00 am-10:55 pm

2 stops27h 55m

Chiang Mai

Tue 11/17

12:15 am-11:56 am

2 stops24h 41m

$994

ChicagoChiang Mai

MDW - CNX

MDWCNX

Chicago Midway

Thu 11/12

6:00 am-10:55 pm

2 stops27h 55m

Chiang Mai

Tue 11/17

12:15 am-11:56 am

2 stops24h 41m

$995

Quickest round-trip

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Fri 11/27

11:15 am-11:20 pm

1 stop23h 05m

Bangkok Suvarnabhumi

Sat 3/13

9:30 pm-8:40 am

1 stop24h 10m

$1,034

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 July is, on average, the cheapest month to fly to Thailand from Illinois, with most prices found around $609. If you are unable to visit Thailand during the month of July, then departing from Illinois during the month January is also very affordable. Most momondo users find prices during this month for around $821.

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 $976 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 $862 on momondo.

Can stopping save me money on Illinois to Thailand flights?

You could potentially save up to 9% 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	20h 10m
Direct flights	None

The fastest flight from Illinois to Thailand takes 20h 10m

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 July 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 $602	Free Cancellation	Rating 5.6 2,957 reviews	Search Air India flights
Cathay Pacific	PriceFrom $665	Free Cancellation	Rating 7.6 1,403 reviews	Search Cathay Pacific flights
ANA	PriceFrom $679	Free Cancellation	Rating 8.3 1,260 reviews	Search ANA flights
Korean Air	PriceFrom $697	Free Cancellation	Rating 8.4 1,220 reviews	Search Korean Air flights
United Airlines	PriceFrom $702	Free Cancellation	Rating 7.4 9,930 reviews	Search United Airlines flights
Turkish Airlines	PriceFrom $710	Free Cancellation	Rating 7.4 4,437 reviews	Search Turkish Airlines flights
Delta	PriceFrom $749	Free Cancellation	Rating 7.8 8,454 reviews	Search Delta flights
American Airlines	PriceFrom $790	Free Cancellation	Rating 7.1 11,765 reviews	Search American Airlines flights
EVA Air	PriceFrom $804	Free Cancellation	Rating 8.5 1,484 reviews	Search EVA Air flights
Japan Airlines	PriceFrom $815	Free Cancellation	Rating 8.3 1,859 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.