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 on average. If you fly from Moline (another popular airport in Illinois) to Bangkok Suvarnabhumi Airport, then the average flight time is 33h 25m.

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

Philippine Airlines, Air India, and Turkish 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 30% 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.

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 September 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.

$374 Cheap Flights from Illinois to Thailand in 2025/26

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Find the cheapest flights from Illinois to Thailand

Round-trip

One-way

Last minute

Cheap round-trip flights

11:15 am - 12:45 amORD-BKK

24h 30m1 stop

11:55 pm - 8:30 amBKK-ORD

21h 35m1 stop

$676Multiple Airlines

Find Deal

Mon, Nov 10 - Mon, Nov 24

11:15 am - 11:20 pmORD-BKK

23h 05m1 stop

12:55 am - 8:30 amBKK-ORD

20h 35m1 stop

$677Korean Air

Find Deal

Wed, Nov 12 - Tue, Nov 25

12:50 pm - 3:05 pmORD-BKK

38h 15m1 stop

10:10 am - 6:25 pmBKK-ORD

45h 15m1 stop

$683Turkish Airlines

Find Deal

Thu, Oct 30 - Tue, Nov 4

6:00 am - 11:55 pmORD-BKK

29h 55m2 stops

9:35 am - 3:10 pmBKK-ORD

41h 35m1 stop

$698United Airlines

Find Deal

Tue, Sep 30 - Tue, Oct 7

11:50 am - 4:20 amORD-BKK

27h 30m1 stop

10:10 am - 10:05 amBKK-ORD

36h 55m1 stop

$702Turkish Airlines

Find Deal

Thu, Nov 27 - Wed, Dec 3

6:15 am - 4:35 amORD-BKK

34h 20m2 stops

9:35 am - 3:10 pmBKK-ORD

41h 35m1 stop

$703United Airlines

Find Deal

Tue, Sep 30 - Wed, Oct 15

1:10 pm - 7:40 amORD-BKK

30h 30m1 stop

5:55 pm - 12:30 pmBKK-ORD

30h 35m2 stops

$707Air India

Find Deal

Mon, Oct 20 - Tue, Oct 28

7:47 am - 12:45 amORD-BKK

27h 58m2 stops

9:40 am - 9:40 pmBKK-ORD

25h 00m2 stops

$710Delta

Find Deal

Mon, Nov 10 - Mon, Dec 15

5:34 pm - 9:30 pmMDW-BKK

38h 56m2 stops

9:30 pm - 11:32 pmBKK-MDW

39h 02m2 stops

$710Delta

Find Deal

Tue, Nov 25 - Tue, Dec 9

1:10 pm - 8:25 pmORD-BKK

43h 15m1 stop

8:50 am - 12:30 pmBKK-ORD

39h 40m2 stops

$721Air India

Find Deal

Mon, Oct 20 - Sun, Nov 2

Air India flights from Illinois to Thailand

Our best Air India deals on Illinois to Thailand flight tickets

Air India

Oct 20

ORD1:10 pmChicago O'Hare Intl

30h 30m

1 stop

BKK7:40 amBangkok Suvarnabhumi

Oct 28

BKK5:55 pmBangkok Suvarnabhumi

30h 35m

2 stops

ORD12:30 pmChicago O'Hare Intl

$707

Find similar

Air India

Oct 20

ORD1:10 pmChicago O'Hare Intl

43h 15m

1 stop

BKK8:25 pmBangkok Suvarnabhumi

Nov 2

BKK8:50 amBangkok Suvarnabhumi

39h 40m

2 stops

ORD12:30 pmChicago O'Hare Intl

$721

Find similar

Air India

Oct 20

ORD1:10 pmChicago O'Hare Intl

43h 15m

1 stop

BKK8:25 pmBangkok Suvarnabhumi

Nov 4

BKK3:10 pmBangkok Suvarnabhumi

33h 20m

2 stops

ORD11:30 amChicago O'Hare Intl

$733

Find similar

Turkish Airlines flights from Illinois to Thailand

Our best Turkish Airlines deals on Illinois to Thailand flight tickets

Turkish Airlines

Oct 30

ORD12:50 pmChicago O'Hare Intl

38h 15m

1 stop

BKK3:05 pmBangkok Suvarnabhumi

Nov 4

BKK10:10 amBangkok Suvarnabhumi

45h 15m

1 stop

ORD6:25 pmChicago O'Hare Intl

$683

Find similar

Turkish Airlines

Nov 27

ORD11:50 amChicago O'Hare Intl

27h 30m

1 stop

BKK4:20 amBangkok Suvarnabhumi

Dec 3

BKK10:10 amBangkok Suvarnabhumi

36h 55m

1 stop

ORD10:05 amChicago O'Hare Intl

$702

Find similar

Turkish Airlines

Nov 17

ORD8:20 pmChicago O'Hare Intl

43h 00m

1 stop

BKK4:20 amBangkok Suvarnabhumi

Nov 26

BKK10:10 amBangkok Suvarnabhumi

36h 55m

1 stop

ORD10:05 amChicago O'Hare Intl

$719

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Mon 11/10

11:15 am-12:45 am

1 stop24h 30m

Bangkok Suvarnabhumi

Mon 11/24

11:55 pm-8:30 am

1 stop21h 35m

$676

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Wed 11/12

11:15 am-11:20 pm

1 stop23h 05m

Bangkok Suvarnabhumi

Tue 11/25

12:55 am-8:30 am

1 stop20h 35m

$677

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Thu 10/30

12:50 pm-3:05 pm

1 stop38h 15m

Bangkok Suvarnabhumi

Tue 11/4

10:10 am-6:25 pm

1 stop45h 15m

$683

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Tue 9/30

6:00 am-11:55 pm

2 stops29h 55m

Bangkok Suvarnabhumi

Tue 10/7

9:35 am-3:10 pm

1 stop41h 35m

$698

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Thu 11/27

11:50 am-4:20 am

1 stop27h 30m

Bangkok Suvarnabhumi

Wed 12/3

10:10 am-10:05 am

1 stop36h 55m

$702

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Tue 9/30

6:15 am-4:35 am

2 stops34h 20m

Bangkok Suvarnabhumi

Wed 10/15

9:35 am-3:10 pm

1 stop41h 35m

$703

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Mon 10/20

1:10 pm-7:40 am

1 stop30h 30m

Bangkok Suvarnabhumi

Tue 10/28

5:55 pm-12:30 pm

2 stops30h 35m

$707

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Mon 11/10

7:47 am-12:45 am

2 stops27h 58m

Bangkok Suvarnabhumi

Mon 12/15

9:40 am-9:40 pm

2 stops25h 00m

$710

ChicagoBangkok

MDW - BKK

MDWBKK

Chicago Midway

Tue 11/25

5:34 pm-9:30 pm

2 stops38h 56m

Bangkok Suvarnabhumi

Tue 12/9

9:30 pm-11:32 pm

2 stops39h 02m

$710

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Mon 10/20

1:10 pm-8:25 pm

1 stop43h 15m

Bangkok Suvarnabhumi

Sun 11/2

8:50 am-12:30 pm

2 stops39h 40m

$721

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 $855. 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 $859.

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 $1,030 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 $859 on momondo.

Can stopping save me money on Illinois to Thailand flights?

You could potentially save up to 25% 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

Direct flights	None

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

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 September 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 3,348 reviews	Search Emirates flights
Air India	PriceFrom $619	Free Cancellation	Rating 5.5 2,934 reviews	Search Air India flights
Cathay Pacific	PriceFrom $682	Free Cancellation	Rating 7.6 1,009 reviews	Search Cathay Pacific flights
ANA	PriceFrom $684	Free Cancellation	Rating 8.4 972 reviews	Search ANA flights
United Airlines	PriceFrom $708	Free Cancellation	Rating 7.4 8,928 reviews	Search United Airlines flights
American Airlines	PriceFrom $710	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Korean Air	PriceFrom $712	Free Cancellation	Rating 8.4 1,143 reviews	Search Korean Air flights
Turkish Airlines	PriceFrom $767	Free Cancellation	Rating 7.3 3,976 reviews	Search Turkish Airlines flights
Etihad Airways	PriceFrom $803	Free Cancellation	Rating 7.4 1,260 reviews	Search Etihad Airways flights
Japan Airlines	PriceFrom $815	Free Cancellation	Rating 8.3 1,564 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.