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

Qatar Airways, Oman Air, and Air Canada are the most popular carriers operating from Thailand to Illinois

How long is the flight from Thailand to Illinois?

The flight from Thailand to Illinois depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Bangkok (a popular airport in Thailand) to Chicago O'Hare Intl Airport (the most popular airport in Illinois), then the flight time is 25h 05m on average. If you fly from Chiang Mai (another popular airport in Thailand) to Chicago O'Hare Intl Airport, then the average flight time is 29h 15m.

What airlines fly to Illinois?

EVA Air, ANA and Japan Airlines are the top three most popular airlines that fly to Illinois from Thailand according to our data. EVA Air is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 6 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Thailand to Illinois refresh daily.

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

The number of operators available for flights from Thailand to Illinois is 6 as of May 2026.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Thailand to Illinois.

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

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

$574 Cheap Flights from Thailand to Illinois in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Thailand to Illinois

Round-trip

One-way

Last minute

Recent round-trip flight deals from Thailand to Illinois

Enter your travel dates to find the best prices.

11:20 am - 7:00 am

CNX

ORD

31h 40m

2 stops

5:55 pm - 10:30 am

ORD

CNX

28h 35m

2 stops

$1,092Multiple Airlines

Tue, Oct 6 - Tue, Oct 27

3:45 pm - 5:05 am

BKK

ORD

25h 20m

2 stops

9:30 pm - 12:20 am

ORD

BKK

37h 50m

2 stops

$1,117United Airlines

Sat, Oct 10 - Fri, Nov 27

1:00 am - 4:50 pm

BKK

ORD

27h 50m

1 stop

4:33 pm - 7:15 am

ORD

BKK

26h 42m

2 stops

$1,119Multiple Airlines

Tue, Jun 9 - Tue, Jun 23

1:55 pm - 5:02 pm

BKK

ORD

39h 07m

2 stops

11:50 am - 10:15 pm

ORD

BKK

22h 25m

1 stop

$1,138ANA

Tue, Jun 23 - Tue, Jul 14

11:35 am - 8:45 pm

CNX

ORD

21h 10m

1 stop

12:30 am - 10:35 am

ORD

CNX

22h 05m

1 stop

$1,225EVA Air

Tue, Oct 6 - Sat, Oct 24

9:40 am - 11:05 pm

BKK

STL

25h 25m

2 stops

8:30 am - 4:25 pm

STL

BKK

43h 55m

2 stops

$1,272Japan Airlines

Thu, Oct 22 - Mon, Oct 26

9:40 am - 11:05 pm

BKK

STL

49h 25m

2 stops

8:30 am - 5:05 am

STL

BKK

32h 35m

2 stops

$1,275Japan Airlines

Thu, Oct 22 - Mon, Oct 26

11:35 am - 8:45 pm

CNX

ORD

21h 10m

1 stop

12:30 am - 10:35 am

ORD

CNX

22h 05m

1 stop

$1,293EVA Air

Tue, Oct 6 - Mon, Oct 26

11:25 pm - 2:38 pm

HKT

STL

27h 13m

2 stops

7:05 pm - 10:10 pm

STL

HKT

39h 05m

2 stops

$1,467Korean Air

Thu, Sep 24 - Mon, Sep 28

11:25 pm - 12:53 pm

HKT

STL

25h 28m

2 stops

5:30 pm - 10:10 pm

STL

HKT

40h 40m

2 stops

$1,478Korean Air

Thu, Sep 24 - Mon, Sep 28

ANA flights from Thailand to Illinois

Our best ANA deals on Thailand to Illinois flight tickets

ANA

Jun 23

BKK1:55 pmBangkok Suvarnabhumi

39h 07m

2 stops

ORD5:02 pmChicago O'Hare Intl

Jul 14

ORD11:50 amChicago O'Hare Intl

22h 25m

1 stop

BKK10:15 pmBangkok Suvarnabhumi

$1,138

ANA

May 4

BKK1:55 pmBangkok Suvarnabhumi

30h 45m

1 stop

ORD8:40 amChicago O'Hare Intl

Sep 30

ORD5:45 pmChicago O'Hare Intl

22h 50m

1 stop

BKK4:35 amBangkok Suvarnabhumi

$1,151

ANA

May 4

BKK1:55 pmBangkok Suvarnabhumi

30h 45m

1 stop

ORD8:40 amChicago O'Hare Intl

Sep 30

ORD7:40 amChicago O'Hare Intl

28h 15m

2 stops

BKK11:55 pmBangkok Suvarnabhumi

$1,236

Japan Airlines flights from Thailand to Illinois

Our best Japan Airlines deals on Thailand to Illinois flight tickets

Japan Airlines

Jun 15

BKK9:40 pmBangkok Suvarnabhumi

22h 05m

1 stop

ORD7:45 amChicago O'Hare Intl

Jun 30

ORD8:05 amChicago O'Hare Intl

33h 40m

2 stops

BKK5:45 amBangkok Suvarnabhumi

$1,193

Japan Airlines

Jul 1

BKK9:40 pmBangkok Suvarnabhumi

38h 27m

2 stops

ORD12:07 amChicago O'Hare Intl

Sep 6

ORD2:10 pmChicago O'Hare Intl

27h 35m

1 stop

BKK5:45 amBangkok Suvarnabhumi

$1,198

Japan Airlines

Jun 22

BKK9:40 pmBangkok Suvarnabhumi

36h 20m

2 stops

ORD10:00 pmChicago O'Hare Intl

Aug 27

ORD10:40 amChicago O'Hare Intl

24h 20m

1 stop

BKK11:00 pmBangkok Suvarnabhumi

$1,202

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Tue 10/6

11:20 am-7:00 am

2 stops31h 40m

Chicago O'Hare Intl

Tue 10/27

5:55 pm-10:30 am

2 stops28h 35m

$1,092

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Sat 10/10

3:45 pm-5:05 am

2 stops25h 20m

Chicago O'Hare Intl

Fri 11/27

9:30 pm-12:20 am

2 stops37h 50m

$1,117

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Tue 6/9

1:00 am-4:50 pm

1 stop27h 50m

Chicago O'Hare Intl

Tue 6/23

4:33 pm-7:15 am

2 stops26h 42m

$1,119

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Tue 6/23

1:55 pm-5:02 pm

2 stops39h 07m

Chicago O'Hare Intl

Tue 7/14

11:50 am-10:15 pm

1 stop22h 25m

$1,138

Quickest round-trip

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Tue 10/6

11:35 am-8:45 pm

1 stop21h 10m

Chicago O'Hare Intl

Sat 10/24

12:30 am-10:35 am

1 stop22h 05m

$1,225

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 10/22

9:40 am-11:05 pm

2 stops25h 25m

Lambert-St Louis

Mon 10/26

8:30 am-4:25 pm

2 stops43h 55m

$1,272

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 10/22

9:40 am-11:05 pm

2 stops49h 25m

Lambert-St Louis

Mon 10/26

8:30 am-5:05 am

2 stops32h 35m

$1,275

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Tue 10/6

11:35 am-8:45 pm

1 stop21h 10m

Chicago O'Hare Intl

Mon 10/26

12:30 am-10:35 am

1 stop22h 05m

$1,293

Phuket CitySt. Louis

HKT - STL

HKTSTL

Phuket City

Thu 9/24

11:25 pm-2:38 pm

2 stops27h 13m

Lambert-St Louis

Mon 9/28

7:05 pm-10:10 pm

2 stops39h 05m

$1,467

Phuket CitySt. Louis

HKT - STL

HKTSTL

Phuket City

Thu 9/24

11:25 pm-12:53 pm

2 stops25h 28m

Lambert-St Louis

Mon 9/28

5:30 pm-10:10 pm

2 stops40h 40m

$1,478

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 Thailand to Illinois

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 Illinois?

The cheapest month to fly to Illinois from Thailand is in February. Flight prices, which tend to average around $372, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of February, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $386.

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

You are more likely to see cheaper flights to Illinois from Thailand when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $1,176 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Thailand for as low as $987 on momondo.

Can stopping save me money on Thailand to Illinois flights?

You could potentially save up to 3% on your flight if you consider stops on a Thailand to Illinois flight.

Cheap Thailand to Illinois flight deals and tips

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

Fastest flight time	22h 15m
Direct flights	None

The fastest flight from Thailand to Illinois takes 22h 15m

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

Search flight deals

Frequently asked questions about flying from Thailand to Illinois

When did momondo last update prices for flights from Thailand to Illinois?
Prices for flights from Thailand to Illinois refresh daily.
How many operators does momondo search for flights from Thailand to Illinois?
The number of operators available for flights from Thailand to Illinois is 6 as of May 2026.
How old do you have to be to fly from Thailand to Illinois?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Thailand to Illinois.
What documentation or ID do you need to fly to Illinois?
The required travel and health documents for your Illinois 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 Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Thailand to Illinois

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

Airline	Rating	Free Cancellation	Price
Japan Airlines	PriceFrom $681	Free Cancellation	Rating 8.3 1,803 reviews	Search Japan Airlines flights
Korean Air	PriceFrom $925	Free Cancellation	Rating 8.4 1,216 reviews	Search Korean Air flights
EVA Air	PriceFrom $993	Free Cancellation	Rating 8.5 1,442 reviews	Search EVA Air flights
ANA	PriceFrom $1,068	Free Cancellation	Rating 8.3 1,205 reviews	Search ANA flights
United Airlines	PriceFrom $1,095	Free Cancellation	Rating 7.4 9,680 reviews	Search United Airlines flights
Thai Airways	PriceFrom $1,122	Free Cancellation	Rating 7.9 401 reviews	Search Thai Airways flights

Why use momondo?

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

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 Thailand to Illinois for you.

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

momondo does allow users to show only those flights to Illinois from Thailand which offer a flexible booking policy as well as other useful filters and features.

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

momondo helps you find the best flight between Thailand and Illinois by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from Thailand to Illinois now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Illinois and let you know when they change.