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 23h 47m on average. Another popular route from Illinois to Bangkok is flying from Peoria to Bangkok Suvarnabhumi Airport, which will take roughly 32h 04m. Keep in mind that layovers or delays could extend your travel time.

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

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

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 29% 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.

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 September 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.

$379 Cheap Flights from Illinois to Bangkok in 2025/26

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Find the cheapest flights from Illinois to Bangkok

Round-trip

One-way

Last minute

Cheap round-trip flights

11:50 am - 4:20 amORD-BKK

27h 30m1 stop

10:10 am - 10:05 amBKK-ORD

36h 55m1 stop

$683Turkish Airlines

Find Deal

Mon, Nov 10 - Wed, Nov 26

11:15 am - 12:45 amORD-BKK

24h 30m1 stop

12:20 pm - 8:30 amBKK-ORD

33h 10m1 stop

$688Multiple Airlines

Find Deal

Mon, Nov 10 - Mon, Nov 17

12:15 pm - 12:45 amORD-BKK

24h 30m1 stop

12:55 am - 8:30 amBKK-ORD

20h 35m1 stop

$698Korean Air

Find Deal

Mon, Oct 27 - Sun, Nov 2

11:15 am - 12:45 amORD-BKK

24h 30m1 stop

9:50 am - 9:40 amBKK-ORD

35h 50m1 stop

$699Korean Air

Find Deal

Mon, Nov 24 - Mon, Mar 30

1:10 pm - 4:55 pmORD-BKK

39h 45m1 stop

8:50 am - 12:30 pmBKK-ORD

39h 40m2 stops

$707Air India

Find Deal

Mon, Oct 20 - Tue, Oct 28

7:20 am - 12:45 amORD-BKK

28h 25m2 stops

9:40 am - 11:59 pmBKK-ORD

27h 19m2 stops

$709Delta

Find Deal

Mon, Nov 24 - Wed, Dec 24

12:47 pm - 11:20 pmMDW-BKK

45h 33m2 stops

9:40 am - 10:22 pmBKK-MDW

25h 42m2 stops

$709Delta

Find Deal

Mon, Nov 24 - Thu, Dec 25

1:10 pm - 2:15 pmORD-BKK

37h 05m1 stop

8:50 am - 12:30 pmBKK-ORD

39h 40m2 stops

$713Air India

Find Deal

Mon, Oct 20 - Sun, Nov 2

6:00 am - 4:25 pmSTL-BKK

45h 25m2 stops

1:10 am - 11:08 pmBKK-STL

34h 58m2 stops

$960Japan Airlines

Find Deal

Wed, Jan 7 - Tue, Mar 3

6:00 am - 4:25 pmSTL-BKK

45h 25m2 stops

9:55 am - 11:10 amBKK-STL

38h 15m2 stops

$963Japan Airlines

Find Deal

Wed, Jan 7 - Wed, Mar 4

Air India flights from Illinois to Bangkok

Our best Air India deals on Illinois to Bangkok flight tickets

Air India

Oct 20

ORD1:10 pmChicago O'Hare Intl

39h 45m

1 stop

BKK4:55 pmBangkok Suvarnabhumi

Oct 28

BKK8:50 amBangkok Suvarnabhumi

39h 40m

2 stops

ORD12:30 pmChicago O'Hare Intl

$707

Find similar

Air India

Oct 20

ORD1:10 pmChicago O'Hare Intl

37h 05m

1 stop

BKK2:15 pmBangkok Suvarnabhumi

Nov 2

BKK8:50 amBangkok Suvarnabhumi

39h 40m

2 stops

ORD12:30 pmChicago O'Hare Intl

$713

Find similar

Air India

Oct 20

ORD1:10 pmChicago O'Hare Intl

30h 30m

1 stop

BKK7:40 amBangkok Suvarnabhumi

Nov 18

BKK3:10 pmBangkok Suvarnabhumi

33h 20m

2 stops

ORD11:30 amChicago O'Hare Intl

$716

Find similar

Japan Airlines flights from Illinois to Bangkok

Our best Japan Airlines deals on Illinois to Bangkok flight tickets

Japan Airlines

Jan 7

STL6:00 amLambert-St Louis

45h 25m

2 stops

BKK4:25 pmBangkok Suvarnabhumi

Mar 3

BKK1:10 amBangkok Suvarnabhumi

34h 58m

2 stops

STL11:08 pmLambert-St Louis

$960

Find similar

Japan Airlines

Jan 7

STL6:00 amLambert-St Louis

45h 25m

2 stops

BKK4:25 pmBangkok Suvarnabhumi

Mar 4

BKK9:55 amBangkok Suvarnabhumi

38h 15m

2 stops

STL11:10 amLambert-St Louis

$963

Find similar

Japan Airlines

Oct 3

EVV6:01 amEvansville Dress Regional

45h 09m

2 stops

BKK3:10 pmBangkok Suvarnabhumi

Oct 10

BKK10:05 pmBangkok Suvarnabhumi

27h 06m

2 stops

EVV1:11 pmEvansville Dress Regional

$1,990

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Mon 11/10

11:50 am-4:20 am

1 stop27h 30m

Bangkok Suvarnabhumi

Wed 11/26

10:10 am-10:05 am

1 stop36h 55m

$683

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Mon 11/10

11:15 am-12:45 am

1 stop24h 30m

Bangkok Suvarnabhumi

Mon 11/17

12:20 pm-8:30 am

1 stop33h 10m

$688

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Mon 10/27

12:15 pm-12:45 am

1 stop24h 30m

Bangkok Suvarnabhumi

Sun 11/2

12:55 am-8:30 am

1 stop20h 35m

$698

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Mon 11/24

11:15 am-12:45 am

1 stop24h 30m

Bangkok Suvarnabhumi

Mon 3/30

9:50 am-9:40 am

1 stop35h 50m

$699

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Mon 10/20

1:10 pm-4:55 pm

1 stop39h 45m

Bangkok Suvarnabhumi

Tue 10/28

8:50 am-12:30 pm

2 stops39h 40m

$707

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Mon 11/24

7:20 am-12:45 am

2 stops28h 25m

Bangkok Suvarnabhumi

Wed 12/24

9:40 am-11:59 pm

2 stops27h 19m

$709

ChicagoBangkok

MDW - BKK

MDWBKK

Chicago Midway

Mon 11/24

12:47 pm-11:20 pm

2 stops45h 33m

Bangkok Suvarnabhumi

Thu 12/25

9:40 am-10:22 pm

2 stops25h 42m

$709

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Mon 10/20

1:10 pm-2:15 pm

1 stop37h 05m

Bangkok Suvarnabhumi

Sun 11/2

8:50 am-12:30 pm

2 stops39h 40m

$713

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Wed 1/7

6:00 am-4:25 pm

2 stops45h 25m

Bangkok Suvarnabhumi

Tue 3/3

1:10 am-11:08 pm

2 stops34h 58m

$960

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Wed 1/7

6:00 am-4:25 pm

2 stops45h 25m

Bangkok Suvarnabhumi

Wed 3/4

9:55 am-11:10 am

2 stops38h 15m

$963

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 $861.

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 $1,030 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 $859 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

Direct flights	None

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

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 September 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 3,353 reviews	Search Emirates flights
Air India	PriceFrom $653	Free Cancellation	Rating 5.5 2,935 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 8,925 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 3,974 reviews	Search Turkish Airlines flights
Etihad Airways	PriceFrom $803	Free Cancellation	Rating 7.4 1,264 reviews	Search Etihad Airways flights
Japan Airlines	PriceFrom $815	Free Cancellation	Rating 8.3 1,569 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.