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 24h 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 airlines fly to Thailand?

EVA Air, Cathay Pacific and Delta 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 40% 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.

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

Etihad Airways, Delta, 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 18 operators available for flights from Illinois to Thailand as of October 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.

$390 Cheap Flights from Illinois to Thailand in 2026/27

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.

1:15 pm - 11:50 pmORD Chicago O'Hare Intl-HKT Phuket City

21h 35m1 stop Abu Dhabi Zayed Intl

3:30 pm - 7:35 amHKT Phuket City-ORD Chicago O'Hare Intl

29h 05m1 stop Abu Dhabi Zayed Intl

$825Etihad Airways

Sun, Feb 21 - Mon, Mar 1

1:15 pm - 11:50 pmORD Chicago O'Hare Intl-HKT Phuket City

21h 35m1 stop Abu Dhabi Zayed Intl

3:30 pm - 7:35 amHKT Phuket City-ORD Chicago O'Hare Intl

29h 05m1 stop Abu Dhabi Zayed Intl

$825Etihad Airways

Wed, Feb 17 - Tue, Mar 2

11:10 am - 11:05 pmORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

22h 55m1 stop Incheon Intl

11:15 pm - 9:30 amBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

22h 15m1 stop Incheon Intl

$833Korean Air

Tue, Mar 9 - Mon, Mar 15

11:10 am - 11:05 pmORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

22h 55m1 stop Incheon Intl

9:40 pm - 9:30 amBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

23h 50m1 stop Incheon Intl

$833Korean Air

Thu, Mar 11 - Wed, Mar 17

2:10 pm - 10:35 amORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

31h 25m1 stop Hong Kong Intl

7:55 pm - 7:35 amBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

24h 40m1 stop Abu Dhabi Zayed Intl

$839Multiple Airlines

Mon, Nov 9 - Sun, Nov 22

5:55 pm - 1:25 pmORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

30h 30m2 stops Atlanta Hartsfield-Jackson Incheon Intl

9:50 am - 11:46 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

25h 56m2 stops Incheon Intl Seattle/Tacoma Intl

$844Delta

Mon, Mar 1 - Wed, Mar 24

7:30 am - 9:30 pmORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

25h 00m2 stops Salt Lake City Incheon Intl

1:05 am - 9:37 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

33h 32m2 stops Incheon Intl Minneapolis St Paul

$844Delta

Mon, Feb 22 - Sun, Feb 28

2:10 pm - 7:35 pmORD Chicago O'Hare Intl-USM Ko Samui

40h 25m1 stop Hong Kong Intl

11:40 am - 12:30 pmUSM Ko Samui-ORD Chicago O'Hare Intl

37h 50m1 stop Hong Kong Intl

$846Cathay Pacific

Tue, Nov 24 - Tue, Dec 8

3:40 pm - 8:10 amORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

27h 30m1 stop Rome Fiumicino

12:15 pm - 1:10 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

37h 55m1 stop Rome Fiumicino

$846Multiple Airlines

Mon, Nov 30 - Mon, Feb 22

2:10 pm - 3:55 pmORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

36h 45m1 stop Hong Kong Intl

1:05 pm - 12:30 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

36h 25m1 stop Hong Kong Intl

$851Cathay Pacific

Tue, Nov 24 - Tue, Dec 8

Cheap last minute flights

Enter your travel dates to find the best prices.

1:20 pm - 12:55 amORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

23h 35m1 stop Abu Dhabi Zayed Intl

3:55 pm - 3:40 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

35h 45m1 stop Abu Dhabi Zayed Intl

$839Etihad Airways

Wed, Oct 14 - Fri, Oct 23

1:20 pm - 12:55 amORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

23h 35m1 stop Abu Dhabi Zayed Intl

8:30 am - 8:35 amBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

36h 05m1 stop Abu Dhabi Zayed Intl

$842Etihad Airways

Wed, Oct 14 - Mon, Oct 26

10:15 am - 12:00 pmORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

37h 45m1 stop Addis Ababa Bole

1:55 am - 7:40 amBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

42h 45m2 stops Addis Ababa Bole Rome Fiumicino

$877Ethiopian Air

Mon, Oct 12 - Mon, Nov 9

7:20 am - 10:40 pmORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

27h 20m2 stops Los Angeles Manila Ninoy Aquino Intl

9:55 am - 4:55 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

20h 00m1 stop Manila Ninoy Aquino Intl

$940Multiple Airlines

Tue, Oct 13 - Wed, Nov 11

7:00 am - 4:35 amORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

33h 35m2 stops Seattle/Tacoma Intl Tokyo Haneda

9:10 am - 7:20 amBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

35h 10m1 stop Tokyo Haneda

$969United Airlines

Tue, Oct 13 - Mon, Feb 1

7:00 am - 4:35 amORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

33h 35m2 stops Seattle/Tacoma Intl Tokyo Haneda

9:10 am - 7:20 amBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

35h 10m1 stop Tokyo Haneda

$969United Airlines

Tue, Oct 13 - Wed, Feb 3

8:00 pm - 6:55 amORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

46h 55m2 stops Amman Queen Alia Intl Muscat Seeb

9:00 am - 3:05 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

43h 05m2 stops Muscat Seeb Amman Queen Alia Intl

$1,043Oman Air

Mon, Oct 12 - Tue, Nov 10

8:00 pm - 6:55 amORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

46h 55m2 stops Amman Queen Alia Intl Muscat Seeb

7:10 pm - 3:05 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

56h 55m2 stops Muscat Seeb Amman Queen Alia Intl

$1,062Oman Air

Mon, Oct 12 - Wed, Feb 3

7:35 am - 1:05 amORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

29h 30m2 stops Salt Lake City Incheon Intl

11:15 pm - 6:29 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

31h 14m2 stops Incheon Intl Detroit Metropolitan Wayne County

$1,112Delta

Wed, Oct 14 - Sun, Oct 25

7:35 am - 1:05 amORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

29h 30m2 stops Salt Lake City Incheon Intl

1:05 am - 1:59 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

25h 54m2 stops Incheon Intl Detroit Metropolitan Wayne County

$1,112Delta

Wed, Oct 14 - Tue, Nov 24

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Korean Air flights from Illinois to Thailand

Our best Korean Air deals on Illinois to Thailand flight tickets

Korean Air

Mar 8

ORD11:10 amChicago O'Hare Intl

22h 55m

1 stop

BKK11:05 pmBangkok Suvarnabhumi

Mar 17

BKK1:05 amBangkok Suvarnabhumi

20h 25m

1 stop

ORD9:30 amChicago O'Hare Intl

$833

Korean Air

Feb 24

ORD11:10 amChicago O'Hare Intl

22h 35m

1 stop

CNX10:45 pmChiang Mai

Mar 9

CNX12:20 amChiang Mai

21h 10m

1 stop

ORD8:30 amChicago O'Hare Intl

$857

Korean Air

Jan 29

ORD11:10 amChicago O'Hare Intl

24h 10m

1 stop

BKK12:20 amBangkok Suvarnabhumi

Jun 9

BKK11:30 pmBangkok Suvarnabhumi

22h 10m

1 stop

ORD9:40 amChicago O'Hare Intl

$883

United Airlines flights from Illinois to Thailand

Our best United Airlines deals on Illinois to Thailand flight tickets

United Airlines

Nov 11

PIA10:43 amGreater Peoria

35h 47m

3 stops

BKK11:30 amBangkok Suvarnabhumi

Dec 2

BKK7:10 amBangkok Suvarnabhumi

26h 50m

2 stops

PIA9:00 pmGreater Peoria

$1,368

United Airlines

Oct 23

PIA6:15 amGreater Peoria

41h 15m

3 stops

BKK11:30 amBangkok Suvarnabhumi

Nov 15

BKK7:10 amBangkok Suvarnabhumi

39h 58m

2 stops

PIA10:08 amGreater Peoria

$1,424

United Airlines

Oct 23

PIA6:15 amGreater Peoria

41h 15m

3 stops

BKK11:30 amBangkok Suvarnabhumi

Nov 15

BKK4:55 pmBangkok Suvarnabhumi

36h 52m

3 stops

PIA4:47 pmGreater Peoria

$1,426

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoPhuket City

ORD Chicago O'Hare Intl - HKT Phuket City

ORDHKT

Chicago O'Hare Intl

Sun 2/21

1:15 pm-11:50 pm

1 stop21h 35m

Phuket City

Mon 3/1

3:30 pm-7:35 am

1 stop29h 05m

$825

ChicagoPhuket City

ORD Chicago O'Hare Intl - HKT Phuket City

ORDHKT

Chicago O'Hare Intl

Wed 2/17

1:15 pm-11:50 pm

1 stop21h 35m

Phuket City

Tue 3/2

3:30 pm-7:35 am

1 stop29h 05m

$825

Quickest round-trip

ChicagoBangkok

ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi

ORDBKK

Chicago O'Hare Intl

Tue 3/9

11:10 am-11:05 pm

1 stop22h 55m

Bangkok Suvarnabhumi

Mon 3/15

11:15 pm-9:30 am

1 stop22h 15m

$833

ChicagoBangkok

ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi

ORDBKK

Chicago O'Hare Intl

Thu 3/11

11:10 am-11:05 pm

1 stop22h 55m

Bangkok Suvarnabhumi

Wed 3/17

9:40 pm-9:30 am

1 stop23h 50m

$833

ChicagoBangkok

ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi

ORDBKK

Chicago O'Hare Intl

Mon 11/9

2:10 pm-10:35 am

1 stop31h 25m

Bangkok Suvarnabhumi

Sun 11/22

7:55 pm-7:35 am

1 stop24h 40m

$839

ChicagoBangkok

ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi

ORDBKK

Chicago O'Hare Intl

Mon 3/1

5:55 pm-1:25 pm

2 stops30h 30m

Bangkok Suvarnabhumi

Wed 3/24

9:50 am-11:46 pm

2 stops25h 56m

$844

ChicagoBangkok

ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi

ORDBKK

Chicago O'Hare Intl

Mon 2/22

7:30 am-9:30 pm

2 stops25h 00m

Bangkok Suvarnabhumi

Sun 2/28

1:05 am-9:37 pm

2 stops33h 32m

$844

ChicagoKo Samui

ORD Chicago O'Hare Intl - USM Ko Samui

ORDUSM

Chicago O'Hare Intl

Tue 11/24

2:10 pm-7:35 pm

1 stop40h 25m

Ko Samui

Tue 12/8

11:40 am-12:30 pm

1 stop37h 50m

$846

ChicagoBangkok

ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi

ORDBKK

Chicago O'Hare Intl

Mon 11/30

3:40 pm-8:10 am

1 stop27h 30m

Bangkok Suvarnabhumi

Mon 2/22

12:15 pm-1:10 pm

1 stop37h 55m

$846

ChicagoBangkok

ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi

ORDBKK

Chicago O'Hare Intl

Tue 11/24

2:10 pm-3:55 pm

1 stop36h 45m

Bangkok Suvarnabhumi

Tue 12/8

1:05 pm-12:30 pm

1 stop36h 25m

$851

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 $897. If you are unable to visit Thailand during the month of February, then departing from Illinois during the month April is also very affordable. Most momondo users find prices during this month for around $905.

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 $1,038 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 $938 on momondo.

Can stopping save me money on Illinois to Thailand flights?

You could potentially save up to 31% 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

Best Price Found	$390
Fastest flight time	21h 05m
Direct flights	None

The best one-way flight to Thailand from Illinois in the past 72 hours is $390. The best round-trip flight deal from Illinois to Thailand found on momondo in the last 72 hours is $825.

The fastest flight from Illinois to Thailand takes 21h 05m

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 18 operators available for flights from Illinois to Thailand as of October 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 $617	Free Cancellation	Rating 5.5 2,917 reviews	Search Air India flights
Philippine Airlines	PriceFrom $680	Free Cancellation	Rating 7.3 1,031 reviews	Search Philippine Airlines flights
Korean Air	PriceFrom $712	Free Cancellation	Rating 8.4 1,217 reviews	Search Korean Air flights
Turkish Airlines	PriceFrom $725	Free Cancellation	Rating 7.4 4,457 reviews	Search Turkish Airlines flights
Cathay Pacific	PriceFrom $787	Free Cancellation	Rating 7.6 1,513 reviews	Search Cathay Pacific flights
Etihad Airways	PriceFrom $789	Free Cancellation	Rating 7.3 1,541 reviews	Search Etihad Airways flights
ANA	PriceFrom $790	Free Cancellation	Rating 8.3 1,321 reviews	Search ANA flights
American Airlines	PriceFrom $790	Free Cancellation	Rating 7.0 12,150 reviews	Search American Airlines flights
EVA Air	PriceFrom $802	Free Cancellation	Rating 8.5 1,546 reviews	Search EVA Air flights
Delta	PriceFrom $809	Free Cancellation	Rating 7.8 8,652 reviews	Search Delta 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.