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

Etihad Airways, Cathay Pacific, and United Airlines are the most popular carriers operating from Illinois to Thailand

What airlines fly to Thailand?

EVA Air, Cathay Pacific and Korean Air 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 37% 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 23h 40m on average. If you fly from Moline (another popular airport in Illinois) to Bangkok Suvarnabhumi Airport, then the average flight time is 28h 05m.

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 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.

$376 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.

8:45 am - 5:05 amORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

32h 20m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

7:05 am - 2:43 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

19h 38m1 stop Vancouver Intl

$851Air Canada

Wed, Sep 16 - Wed, Sep 23

8:25 pm - 12:10 pmORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

27h 45m1 stop Abu Dhabi Zayed Intl

3:15 am - 3:40 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

24h 25m1 stop Abu Dhabi Zayed Intl

$851Etihad Airways

Sun, Sep 6 - Fri, Sep 18

2:00 pm - 11:55 pmORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

21h 55m1 stop Abu Dhabi Zayed Intl

3:15 am - 3:40 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

24h 25m1 stop Abu Dhabi Zayed Intl

$851Etihad Airways

Wed, Sep 9 - Fri, Sep 18

11:05 am - 5:05 amORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

30h 00m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

7:05 am - 8:12 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

25h 07m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$854Air Canada

Mon, Sep 14 - Wed, Oct 21

3:35 pm - 12:15 amORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

20h 40m1 stop Hong Kong Intl

7:55 am - 12:55 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

18h 00m1 stop Hong Kong Intl

$862Cathay Pacific

Mon, Oct 26 - Mon, Nov 30

5:30 pm - 2:40 pmORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

33h 10m3 stops Calgary Vancouver Intl Guangzhou Baiyun

6:05 pm - 1:23 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

31h 18m3 stops Guangzhou Baiyun Vancouver Intl Toronto Pearson Intl

$862Multiple Airlines

Tue, Sep 15 - Tue, Sep 29

2:35 pm - 12:15 amORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

20h 40m1 stop Hong Kong Intl

3:05 pm - 12:55 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

34h 50m1 stop Hong Kong Intl

$878Cathay Pacific

Wed, Feb 10 - Sat, Feb 20

12:15 pm - 4:35 amORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

28h 20m1 stop Tokyo Haneda

7:00 am - 2:55 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

19h 55m1 stop Tokyo Narita

$887United Airlines

Mon, Aug 31 - Thu, Sep 3

10:30 am - 10:50 pmORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

23h 20m1 stop Tokyo Narita

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

35h 10m1 stop Tokyo Haneda

$888United Airlines

Thu, Nov 26 - Wed, Dec 2

2:00 pm - 6:10 pmORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

40h 10m1 stop Abu Dhabi Zayed Intl

1:10 am - 6:34 amBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

41h 24m2 stops Chengdu Tianfu Intl Los Angeles

$894Multiple Airlines

Sun, Oct 4 - Sat, Oct 17

Cheap last minute flights

Enter your travel dates to find the best prices.

7:46 pm - 5:05 amORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

45h 19m2 stops Calgary Vancouver Intl

7:05 am - 2:43 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

19h 38m1 stop Vancouver Intl

$857Air Canada

Tue, Aug 25 - Mon, Oct 5

12:15 pm - 5:55 amORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

29h 40m1 stop Tokyo Haneda

9:35 am - 8:36 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

47h 01m2 stops Tokyo Haneda Los Angeles

$859ANA

Mon, Aug 24 - Mon, Sep 7

7:46 pm - 5:05 amORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

45h 19m2 stops Calgary Vancouver Intl

7:05 am - 7:51 amBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

36h 46m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$861Air Canada

Tue, Aug 25 - Mon, Oct 5

8:00 pm - 6:45 amORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

22h 45m1 stop Abu Dhabi Zayed Intl

8:30 am - 8:55 amBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

36h 25m1 stop Abu Dhabi Zayed Intl

$865Etihad Airways

Wed, Aug 26 - Sun, Nov 1

8:00 pm - 6:45 amORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

22h 45m1 stop Abu Dhabi Zayed Intl

2:55 am - 4:00 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

25h 05m1 stop Abu Dhabi Zayed Intl

$865Etihad Airways

Tue, Aug 25 - Fri, Oct 30

12:15 pm - 4:35 amORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

28h 20m1 stop Tokyo Haneda

9:35 am - 3:25 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

41h 50m1 stop Tokyo Haneda

$885United Airlines

Tue, Aug 25 - Tue, Sep 1

2:00 pm - 9:35 amORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

31h 35m2 stops Los Angeles Hong Kong Intl

9:35 am - 3:05 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

41h 30m1 stop Tokyo Haneda

$889United Airlines

Wed, Aug 26 - Wed, Sep 9

7:50 pm - 9:35 amORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

25h 45m2 stops Los Angeles Hong Kong Intl

3:45 pm - 6:20 amBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

26h 35m2 stops Hong Kong Intl Los Angeles

$891Lufthansa

Mon, Aug 24 - Mon, Sep 7

12:15 pm - 5:55 amORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

29h 40m1 stop Tokyo Haneda

9:35 pm - 3:25 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

29h 50m1 stop Tokyo Haneda

$897ANA

Mon, Aug 24 - Wed, Aug 26

10:00 pm - 11:55 pmORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

37h 55m2 stops Denver Intl Tokyo Narita

7:00 am - 2:55 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

19h 55m1 stop Tokyo Narita

$911Lufthansa

Sun, Aug 23 - Mon, Sep 7

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Delta flights from Illinois to Thailand

Our best Delta deals on Illinois to Thailand flight tickets

Delta

Sep 1

MDW9:24 amChicago Midway

27h 41m

2 stops

BKK1:05 amBangkok Suvarnabhumi

Sep 8

BKK9:50 amBangkok Suvarnabhumi

24h 54m

2 stops

MDW10:44 pmChicago Midway

$922

Delta

Nov 23

MDW5:25 pmChicago Midway

39h 05m

2 stops

BKK9:30 pmBangkok Suvarnabhumi

Dec 6

BKK12:55 amBangkok Suvarnabhumi

30h 09m

2 stops

MDW6:04 pmChicago Midway

$927

Delta

Sep 4

MDW9:24 amChicago Midway

26h 11m

2 stops

BKK11:35 pmBangkok Suvarnabhumi

Sep 29

BKK2:35 amBangkok Suvarnabhumi

32h 09m

2 stops

MDW10:44 pmChicago Midway

$958

Air Canada flights from Illinois to Thailand

Our best Air Canada deals on Illinois to Thailand flight tickets

Air Canada

Sep 14

ORD11:05 amChicago O'Hare Intl

30h 00m

2 stops

BKK5:05 amBangkok Suvarnabhumi

Sep 21

BKK7:05 amBangkok Suvarnabhumi

25h 07m

2 stops

ORD8:12 pmChicago O'Hare Intl

$854

Air Canada

Aug 31

ORD8:44 amChicago O'Hare Intl

32h 21m

2 stops

BKK5:05 amBangkok Suvarnabhumi

Sep 21

BKK7:05 amBangkok Suvarnabhumi

19h 38m

1 stop

ORD2:43 pmChicago O'Hare Intl

$857

Air Canada

Aug 31

ORD8:44 amChicago O'Hare Intl

32h 21m

2 stops

BKK5:05 amBangkok Suvarnabhumi

Sep 21

BKK7:05 amBangkok Suvarnabhumi

36h 46m

2 stops

ORD7:51 amChicago O'Hare Intl

$861

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoBangkok

ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi

ORDBKK

Chicago O'Hare Intl

Wed 9/16

8:45 am-5:05 am

2 stops32h 20m

Bangkok Suvarnabhumi

Wed 9/23

7:05 am-2:43 pm

1 stop19h 38m

$851

ChicagoBangkok

ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi

ORDBKK

Chicago O'Hare Intl

Sun 9/6

8:25 pm-12:10 pm

1 stop27h 45m

Bangkok Suvarnabhumi

Fri 9/18

3:15 am-3:40 pm

1 stop24h 25m

$851

ChicagoBangkok

ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi

ORDBKK

Chicago O'Hare Intl

Wed 9/9

2:00 pm-11:55 pm

1 stop21h 55m

Bangkok Suvarnabhumi

Fri 9/18

3:15 am-3:40 pm

1 stop24h 25m

$851

ChicagoBangkok

ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi

ORDBKK

Chicago O'Hare Intl

Mon 9/14

11:05 am-5:05 am

2 stops30h 00m

Bangkok Suvarnabhumi

Wed 10/21

7:05 am-8:12 pm

2 stops25h 07m

$854

Quickest round-trip

ChicagoBangkok

ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi

ORDBKK

Chicago O'Hare Intl

Mon 10/26

3:35 pm-12:15 am

1 stop20h 40m

Bangkok Suvarnabhumi

Mon 11/30

7:55 am-12:55 pm

1 stop18h 00m

$862

ChicagoBangkok

ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi

ORDBKK

Chicago O'Hare Intl

Tue 9/15

5:30 pm-2:40 pm

3 stops33h 10m

Bangkok Suvarnabhumi

Tue 9/29

6:05 pm-1:23 pm

3 stops31h 18m

$862

ChicagoBangkok

ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi

ORDBKK

Chicago O'Hare Intl

Wed 2/10

2:35 pm-12:15 am

1 stop20h 40m

Bangkok Suvarnabhumi

Sat 2/20

3:05 pm-12:55 pm

1 stop34h 50m

$878

ChicagoBangkok

ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi

ORDBKK

Chicago O'Hare Intl

Mon 8/31

12:15 pm-4:35 am

1 stop28h 20m

Bangkok Suvarnabhumi

Thu 9/3

7:00 am-2:55 pm

1 stop19h 55m

$887

ChicagoBangkok

ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi

ORDBKK

Chicago O'Hare Intl

Thu 11/26

10:30 am-10:50 pm

1 stop23h 20m

Bangkok Suvarnabhumi

Wed 12/2

9:10 am-7:20 am

1 stop35h 10m

$888

ChicagoBangkok

ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi

ORDBKK

Chicago O'Hare Intl

Sun 10/4

2:00 pm-6:10 pm

1 stop40h 10m

Bangkok Suvarnabhumi

Sat 10/17

1:10 am-6:34 am

2 stops41h 24m

$894

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 $872. If you are unable to visit Thailand during the month of September, then departing from Illinois during the month February is also very affordable. Most momondo users find prices during this month for around $883.

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 $1,013 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 $918 on momondo.

Can stopping save me money on Illinois to Thailand flights?

You could potentially save up to 15% 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	$376
Fastest flight time	20h 45m
Direct flights	None

The best one-way flight to Thailand from Illinois in the past 72 hours is $376. The best round-trip flight deal from Illinois to Thailand found on momondo in the last 72 hours is $851.

The fastest flight from Illinois to Thailand takes 20h 45m

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 17 operators available for flights from Illinois to Thailand as of August 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 $601	Free Cancellation	Rating 5.5 2,943 reviews	Search Air India flights
Cathay Pacific	PriceFrom $674	Free Cancellation	Rating 7.6 1,455 reviews	Search Cathay Pacific flights
ANA	PriceFrom $688	Free Cancellation	Rating 8.3 1,299 reviews	Search ANA flights
Korean Air	PriceFrom $694	Free Cancellation	Rating 8.4 1,221 reviews	Search Korean Air flights
Turkish Airlines	PriceFrom $710	Free Cancellation	Rating 7.4 4,480 reviews	Search Turkish Airlines flights
United Airlines	PriceFrom $723	Free Cancellation	Rating 7.4 10,104 reviews	Search United Airlines flights
Delta	PriceFrom $749	Free Cancellation	Rating 7.8 8,510 reviews	Search Delta flights
American Airlines	PriceFrom $790	Free Cancellation	Rating 7.1 11,979 reviews	Search American Airlines flights
EVA Air	PriceFrom $804	Free Cancellation	Rating 8.5 1,518 reviews	Search EVA Air flights
Japan Airlines	PriceFrom $815	Free Cancellation	Rating 8.3 1,908 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.