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

Cathay Pacific, Turkish Airlines, and Air India 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 17 different airlines that fly to Thailand on a routine basis, so you have a few additional options to choose from.

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 02m on average. If you fly from Peoria (another popular airport in Illinois) to Bangkok Suvarnabhumi Airport, then the average flight time is 24h 53m.

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 17 operators available for flights from Illinois to Thailand as of August 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.

$339 Cheap Flights from Illinois to Thailand in 2025

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Find the cheapest flights from Illinois to Thailand

Round-trip

One-way

Last minute

Cheap round-trip flights

4:00 pm - 11:30 amORD-BKK

31h 30m1 stop

7:00 pm - 2:25 pmBKK-ORD

31h 25m1 stop

$592Cathay Pacific

Find Deal

mié., oct. 1 - lun., oct. 6

4:00 pm - 11:50 pmORD-BKK

19h 50m1 stop

7:00 pm - 2:25 pmBKK-ORD

31h 25m1 stop

$606Cathay Pacific

Find Deal

lun., sep. 1 - mié., sep. 10

4:25 pm - 6:30 amORD-BKK

25h 05m1 stop

2:20 pm - 7:20 amBKK-ORD

30h 00m1 stop

$624ANA

Find Deal

jue., nov. 6 - dom., nov. 23

4:25 pm - 6:30 amORD-BKK

25h 05m1 stop

7:10 am - 1:50 pmBKK-ORD

19h 40m1 stop

$627ANA

Find Deal

lun., nov. 10 - jue., dic. 11

12:40 pm - 4:35 amORD-BKK

27h 55m1 stop

9:35 am - 3:10 pmBKK-ORD

41h 35m1 stop

$639United Airlines

Find Deal

lun., sep. 8 - mié., sep. 17

12:40 pm - 4:35 amORD-BKK

27h 55m1 stop

7:00 am - 2:55 pmBKK-ORD

19h 55m1 stop

$642United Airlines

Find Deal

jue., sep. 4 - jue., sep. 11

5:45 pm - 9:35 amORD-HKT

27h 50m2 stops

5:30 pm - 3:10 pmHKT-ORD

33h 40m2 stops

$671

Find Deal

mié., sep. 3 - mar., sep. 9

5:45 pm - 9:35 amORD-HKT

27h 50m2 stops

9:55 pm - 2:55 pmHKT-ORD

29h 00m2 stops

$674

Find Deal

mié., sep. 3 - lun., sep. 8

11:00 am - 5:10 pmORD-HKT

41h 10m1 stop

6:10 pm - 6:30 amHKT-ORD

25h 20m1 stop

$724Air India

Find Deal

dom., feb. 1 - vie., feb. 6

1:10 pm - 8:10 amORD-HKT

31h 00m1 stop

9:05 am - 11:10 amHKT-ORD

38h 05m2 stops

$749Air India

Find Deal

mié., sep. 10 - jue., sep. 25

Cathay Pacific flights from Illinois to Thailand

Our best Cathay Pacific deals on Illinois to Thailand flight tickets

Cathay Pacific

Oct 1

ORD4:00 pmChicago O'Hare Intl

31h 30m

1 stop

BKK11:30 amBangkok Suvarnabhumi

Oct 6

BKK7:00 pmBangkok Suvarnabhumi

31h 25m

1 stop

ORD2:25 pmChicago O'Hare Intl

$592

Find similar

Cathay Pacific

Sep 1

ORD4:00 pmChicago O'Hare Intl

19h 50m

1 stop

BKK11:50 pmBangkok Suvarnabhumi

Sep 10

BKK7:00 pmBangkok Suvarnabhumi

31h 25m

1 stop

ORD2:25 pmChicago O'Hare Intl

$606

Find similar

Cathay Pacific

Nov 20

ORD2:40 pmChicago O'Hare Intl

37h 00m

1 stop

BKK4:40 pmBangkok Suvarnabhumi

Dec 7

BKK12:45 pmBangkok Suvarnabhumi

37h 15m

1 stop

ORD1:00 pmChicago O'Hare Intl

$619

Find similar

United Airlines flights from Illinois to Thailand

Our best United Airlines deals on Illinois to Thailand flight tickets

United Airlines

Sep 8

ORD12:40 pmChicago O'Hare Intl

27h 55m

1 stop

BKK4:35 amBangkok Suvarnabhumi

Sep 17

BKK9:35 amBangkok Suvarnabhumi

41h 35m

1 stop

ORD3:10 pmChicago O'Hare Intl

$639

Find similar

United Airlines

Sep 4

ORD12:40 pmChicago O'Hare Intl

27h 55m

1 stop

BKK4:35 amBangkok Suvarnabhumi

Sep 11

BKK7:00 amBangkok Suvarnabhumi

19h 55m

1 stop

ORD2:55 pmChicago O'Hare Intl

$642

Find similar

United Airlines

Sep 8

ORD7:10 amChicago O'Hare Intl

33h 25m

2 stops

BKK4:35 amBangkok Suvarnabhumi

Sep 17

BKK9:35 amBangkok Suvarnabhumi

41h 35m

1 stop

ORD3:10 pmChicago O'Hare Intl

$644

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

mié. 10/1

4:00 pm-11:30 am

1 stop31h 30m

Bangkok Suvarnabhumi

lun. 10/6

7:00 pm-2:25 pm

1 stop31h 25m

$592

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

lun. 9/1

4:00 pm-11:50 pm

1 stop19h 50m

Bangkok Suvarnabhumi

mié. 9/10

7:00 pm-2:25 pm

1 stop31h 25m

$606

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

jue. 11/6

4:25 pm-6:30 am

1 stop25h 05m

Bangkok Suvarnabhumi

dom. 11/23

2:20 pm-7:20 am

1 stop30h 00m

$624

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

lun. 11/10

4:25 pm-6:30 am

1 stop25h 05m

Bangkok Suvarnabhumi

jue. 12/11

7:10 am-1:50 pm

1 stop19h 40m

$627

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

lun. 9/8

12:40 pm-4:35 am

1 stop27h 55m

Bangkok Suvarnabhumi

mié. 9/17

9:35 am-3:10 pm

1 stop41h 35m

$639

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

jue. 9/4

12:40 pm-4:35 am

1 stop27h 55m

Bangkok Suvarnabhumi

jue. 9/11

7:00 am-2:55 pm

1 stop19h 55m

$642

ChicagoPhuket City

ORD - HKT

ORDHKT

Chicago O'Hare Intl

mié. 9/3

5:45 pm-9:35 am

2 stops27h 50m

Phuket City

mar. 9/9

5:30 pm-3:10 pm

2 stops33h 40m

$671

ChicagoPhuket City

ORD - HKT

ORDHKT

Chicago O'Hare Intl

mié. 9/3

5:45 pm-9:35 am

2 stops27h 50m

Phuket City

lun. 9/8

9:55 pm-2:55 pm

2 stops29h 00m

$674

ChicagoPhuket City

ORD - HKT

ORDHKT

Chicago O'Hare Intl

dom. 2/1

11:00 am-5:10 pm

1 stop41h 10m

Phuket City

vie. 2/6

6:10 pm-6:30 am

1 stop25h 20m

$724

ChicagoPhuket City

ORD - HKT

ORDHKT

Chicago O'Hare Intl

mié. 9/10

1:10 pm-8:10 am

1 stop31h 00m

Phuket City

jue. 9/25

9:05 am-11:10 am

2 stops38h 05m

$749

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 $886. 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 $895.

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 $1,058 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 $913 on momondo.

Can stopping save me money on Illinois to Thailand flights?

You could potentially save up to 28% 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	$339
Fastest flight time	19h 50m
Direct flights	None
Airports in Thailand	3 airports

The best one-way flight to Thailand from Illinois in the past 72 hours is $339. The best round-trip flight deal from Illinois to Thailand found on momondo in the last 72 hours is $592.

The fastest flight from Illinois to Thailand takes 19h 50m

There are no direct flights from Illinois to Thailand. Popular non-direct routes for this connection are Chicago O'Hare Intl Airport - Bangkok Suvarnabhumi Airport and Chicago O'Hare Intl Airport - Phuket City Airport.

There are 3 airports near Thailand: Phuket City (HKT), Bangkok Suvarnabhumi (BKK), Chiang Mai (CNX)

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 17 operators available for flights from Illinois to Thailand as of August 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
Emirates	PriceFrom $503	Free Cancellation	Rating 8.1 3,315 reviews	Search Emirates flights
Air India	PriceFrom $660	Free Cancellation	Rating 5.5 2,930 reviews	Search Air India flights
American Airlines	PriceFrom $710	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
ANA	PriceFrom $711	Free Cancellation	Rating 8.4 933 reviews	Search ANA flights
United Airlines	PriceFrom $729	Free Cancellation	Rating 7.4 8,916 reviews	Search United Airlines flights
Korean Air	PriceFrom $755	Free Cancellation	Rating 8.4 1,131 reviews	Search Korean Air flights
Cathay Pacific	PriceFrom $768	Free Cancellation	Rating 7.6 968 reviews	Search Cathay Pacific flights
Turkish Airlines	PriceFrom $790	Free Cancellation	Rating 7.3 3,940 reviews	Search Turkish Airlines flights
Etihad Airways	PriceFrom $821	Free Cancellation	Rating 7.4 1,232 reviews	Search Etihad Airways flights
Japan Airlines	PriceFrom $857	Free Cancellation	Rating 8.3 1,545 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.