How long does it take to fly to Bangkok?

Flight times from Illinois to Bangkok vary, but if you’re flying out of Chicago and flying into Bangkok Suvarnabhumi Airport (one of the most popular routes), then the duration is 22h 02m on average. Another popular route from Illinois to Bangkok is flying from Peoria to Bangkok Suvarnabhumi Airport, which will take roughly 24h 53m. Keep in mind that layovers or delays could extend your travel time.

What airlines fly to Bangkok?

ANA, EVA Air and Cathay Pacific are the top three most popular airlines that fly to Bangkok from Illinois according to our data. ANA is the first choice among our users, with 28% of people opting to fly with this airline when traveling to Bangkok. Keep in mind that there are 17 different airlines that fly to Bangkok on a routine basis, so you have a few additional options to choose from.

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

Cathay Pacific, Turkish Airlines, and Air India are the most popular carriers operating from Illinois to Bangkok

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

Prices for flights from Illinois to Bangkok are updated daily.

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

There are 17 operators available for flights from Illinois to Bangkok as of August 2025.

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

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 Bangkok.

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

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

$339 Cheap Flights from Illinois to Bangkok in 2025

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Find the cheapest flights from Illinois to Bangkok

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

Wed, Oct 1 - Mon, 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

Mon, Sep 1 - Wed, 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

Thu, Nov 6 - Sun, 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

Mon, Nov 10 - Thu, Dec 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

Mon, Sep 8 - Wed, 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

Thu, Sep 4 - Thu, Sep 11

10:35 am - 1:15 pmMDW-BKK

38h 40m2 stops

9:40 pm - 9:36 pmBKK-MDW

35h 56m2 stops

$878Delta

Find Deal

Mon, Sep 8 - Tue, Sep 23

9:15 am - 11:25 pmMDW-BKK

26h 10m2 stops

9:50 am - 8:51 amBKK-MDW

35h 01m2 stops

$883Delta

Find Deal

Fri, Aug 29 - Fri, Sep 5

7:00 am - 11:00 pmPIA-BKK

28h 00m2 stops

8:05 am - 11:23 pmBKK-PIA

27h 18m2 stops

$890American Airlines

Find Deal

Tue, Sep 2 - Tue, Sep 9

7:00 am - 11:00 pmEVV-BKK

28h 00m2 stops

8:05 am - 9:53 pmBKK-EVV

25h 48m2 stops

$890American Airlines

Find Deal

Thu, Aug 28 - Thu, Sep 4

Cathay Pacific flights from Illinois to Bangkok

Our best Cathay Pacific deals on Illinois to Bangkok 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 Bangkok

Our best United Airlines deals on Illinois to Bangkok 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

Wed 10/1

4:00 pm-11:30 am

1 stop31h 30m

Bangkok Suvarnabhumi

Mon 10/6

7:00 pm-2:25 pm

1 stop31h 25m

$592

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Mon 9/1

4:00 pm-11:50 pm

1 stop19h 50m

Bangkok Suvarnabhumi

Wed 9/10

7:00 pm-2:25 pm

1 stop31h 25m

$606

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Thu 11/6

4:25 pm-6:30 am

1 stop25h 05m

Bangkok Suvarnabhumi

Sun 11/23

2:20 pm-7:20 am

1 stop30h 00m

$624

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Mon 11/10

4:25 pm-6:30 am

1 stop25h 05m

Bangkok Suvarnabhumi

Thu 12/11

7:10 am-1:50 pm

1 stop19h 40m

$627

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Mon 9/8

12:40 pm-4:35 am

1 stop27h 55m

Bangkok Suvarnabhumi

Wed 9/17

9:35 am-3:10 pm

1 stop41h 35m

$639

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Thu 9/4

12:40 pm-4:35 am

1 stop27h 55m

Bangkok Suvarnabhumi

Thu 9/11

7:00 am-2:55 pm

1 stop19h 55m

$642

ChicagoBangkok

MDW - BKK

MDWBKK

Chicago Midway

Mon 9/8

10:35 am-1:15 pm

2 stops38h 40m

Bangkok Suvarnabhumi

Tue 9/23

9:40 pm-9:36 pm

2 stops35h 56m

$878

ChicagoBangkok

MDW - BKK

MDWBKK

Chicago Midway

Fri 8/29

9:15 am-11:25 pm

2 stops26h 10m

Bangkok Suvarnabhumi

Fri 9/5

9:50 am-8:51 am

2 stops35h 01m

$883

PeoriaBangkok

PIA - BKK

PIABKK

Greater Peoria

Tue 9/2

7:00 am-11:00 pm

2 stops28h 00m

Bangkok Suvarnabhumi

Tue 9/9

8:05 am-11:23 pm

2 stops27h 18m

$890

EvansvilleBangkok

EVV - BKK

EVVBKK

Evansville Dress Regional

Thu 8/28

7:00 am-11:00 pm

2 stops28h 00m

Bangkok Suvarnabhumi

Thu 9/4

8:05 am-9:53 pm

2 stops25h 48m

$890

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 Bangkok

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 Bangkok?

If you aren’t able to travel during the month of September, then book flights to Bangkok from Illinois during October instead. Flights to Bangkok in October, while not as cheap as those in September, still average around $895.

What is the cheapest day to depart on your flight to Bangkok?

On average, the least expensive day to fly to Bangkok from Illinois is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $995. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Illinois to Bangkok on a Saturday will generally be more expensive and average around $1,268. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Bangkok?

According to our data, the cheapest time of day to fly to Bangkok is at noon. momondo users have found flights departing from Illinois to Bangkok at noon for as low as $964. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the evening because they tend to be around $1,146. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight to Bangkok?

You are more likely to see cheaper flights to Bangkok from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Bangkok 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 Bangkok from Illinois for as low as $913 on momondo.

Cheap Illinois to Bangkok flight deals and tips

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

Best Price Found	$339
Fastest flight time	19h 50m
Direct flights	None
Airports in Bangkok	2 airports

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

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

There are no direct flights from Illinois to Bangkok. Popular non-direct route for this connection is Chicago O'Hare Intl Airport - Bangkok Suvarnabhumi Airport.

There are 2 airports near Bangkok: Bangkok Suvarnabhumi (BKK), Bangkok Don Mueang Intl (DMK)

Search flight deals

When did momondo last update prices for flights from Illinois to Bangkok?
Prices for flights from Illinois to Bangkok are updated daily.
How many operators does momondo search for flights from Illinois to Bangkok?
There are 17 operators available for flights from Illinois to Bangkok as of August 2025.
How old do you have to be to fly from Illinois to Bangkok?
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 Bangkok.
What documentation or ID do you need to fly to Bangkok?
The required travel and health documents for your Bangkok 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 Bangkok. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Illinois to Bangkok

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

Airline	Rating	Free Cancellation	Price
Emirates	PriceFrom $503	Free Cancellation	Rating 8.1 3,315 reviews	Search Emirates flights
Air India	PriceFrom $685	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 Bangkok?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Illinois to Bangkok. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for Illinois to Bangkok flights to just show those with flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Illinois to Bangkok.

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

Yes. momondo can track prices for Illinois to Bangkok flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.