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

Delta, Qatar Airways, and Korean Air are the most popular carriers operating from Bangkok to Illinois

What airlines fly to Illinois?

EVA Air, Cathay Pacific and ANA are the top three most popular airlines that fly to Illinois from Bangkok 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 Illinois. Keep in mind that there are 7 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 Bangkok to Illinois?

Prices for flights from Bangkok to Illinois refresh daily.

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

The number of operators available for flights from Bangkok to Illinois is 7 as of March 2026.

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

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 Bangkok 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.

$528 Cheap Flights from Bangkok to Illinois in 2026

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Find the cheapest flights from Bangkok to Illinois

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:50 am - 2:26 pm

BKK

STL

39h 36m

2 stops

3:24 pm - 9:45 am

STL

BKK

30h 21m

2 stops

$951Multiple Airlines

Tue, Sep 8 - Sat, Oct 3

2:35 am - 11:47 pm

BKK

ORD

33h 12m

2 stops

7:55 pm - 11:35 pm

ORD

BKK

39h 40m

2 stops

$975Delta

Sat, Jun 20 - Tue, Jul 14

7:35 am - 8:35 am

BKK

ORD

37h 00m

2 stops

2:00 pm - 11:50 pm

ORD

BKK

21h 50m

1 stop

$989Multiple Airlines

Mon, Apr 20 - Sun, May 3

11:40 pm - 12:06 pm

BKK

ORD

48h 26m

2 stops

5:55 pm - 12:10 pm

ORD

BKK

30h 15m

2 stops

$1,005Multiple Airlines

Mon, Jul 20 - Wed, Aug 26

9:40 pm - 9:40 am

BKK

ORD

24h 00m

1 stop

12:30 pm - 1:05 am

ORD

BKK

24h 35m

1 stop

$1,012Korean Air

Thu, Jun 4 - Thu, Jul 16

9:35 am - 4:46 am

BKK

ORD

31h 11m

2 stops

4:00 pm - 9:35 am

ORD

BKK

29h 35m

2 stops

$1,018United Airlines

Thu, Apr 23 - Mon, Apr 27

9:35 am - 8:40 am

BKK

ORD

35h 05m

1 stop

7:00 am - 4:35 am

ORD

BKK

33h 35m

2 stops

$1,024United Airlines

Thu, Jun 18 - Sun, Jul 12

9:40 pm - 11:08 pm

BKK

STL

37h 28m

2 stops

7:23 am - 3:10 pm

STL

BKK

43h 47m

2 stops

$1,267Japan Airlines

Fri, Aug 28 - Tue, Sep 1

9:40 pm - 11:08 pm

BKK

STL

37h 28m

2 stops

7:23 am - 5:45 am

STL

BKK

34h 22m

2 stops

$1,273Japan Airlines

Fri, Aug 28 - Tue, Sep 1

9:35 pm - 8:00 pm

BKK

STL

34h 25m

2 stops

5:20 am - 5:05 am

STL

BKK

35h 45m

1 stop

$1,360ANA

Tue, Sep 8 - Sat, Oct 3

Korean Air flights from Bangkok to Illinois

Our best Korean Air deals on Bangkok to Illinois flight tickets

Korean Air

Jun 4

BKK9:40 pmBangkok Suvarnabhumi

24h 00m

1 stop

ORD9:40 amChicago O'Hare Intl

Jul 16

ORD12:30 pmChicago O'Hare Intl

24h 35m

1 stop

BKK1:05 amBangkok Suvarnabhumi

$1,012

Korean Air

Mar 22

BKK12:55 amBangkok Suvarnabhumi

26h 18m

2 stops

STL3:13 pmLambert-St Louis

Apr 23

STL6:48 amLambert-St Louis

26h 57m

2 stops

BKK9:45 pmBangkok Suvarnabhumi

$1,949

United Airlines flights from Bangkok to Illinois

Our best United Airlines deals on Bangkok to Illinois flight tickets

United Airlines

Apr 23

BKK9:35 amBangkok Suvarnabhumi

31h 11m

2 stops

ORD4:46 amChicago O'Hare Intl

Apr 27

ORD4:00 pmChicago O'Hare Intl

29h 35m

2 stops

BKK9:35 amBangkok Suvarnabhumi

$1,018

United Airlines

Jun 18

BKK9:35 amBangkok Suvarnabhumi

35h 05m

1 stop

ORD8:40 amChicago O'Hare Intl

Jul 12

ORD7:00 amChicago O'Hare Intl

33h 35m

2 stops

BKK4:35 amBangkok Suvarnabhumi

$1,024

United Airlines

Jun 18

BKK9:35 amBangkok Suvarnabhumi

35h 05m

1 stop

ORD8:40 amChicago O'Hare Intl

Jul 12

ORD11:50 amChicago O'Hare Intl

24h 05m

1 stop

BKK11:55 pmBangkok Suvarnabhumi

$1,027

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Tue 9/8

10:50 am-2:26 pm

2 stops39h 36m

Lambert-St Louis

Sat 10/3

3:24 pm-9:45 am

2 stops30h 21m

$951

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Sat 6/20

2:35 am-11:47 pm

2 stops33h 12m

Chicago O'Hare Intl

Tue 7/14

7:55 pm-11:35 pm

2 stops39h 40m

$975

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Mon 4/20

7:35 am-8:35 am

2 stops37h 00m

Chicago O'Hare Intl

Sun 5/3

2:00 pm-11:50 pm

1 stop21h 50m

$989

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Mon 7/20

11:40 pm-12:06 pm

2 stops48h 26m

Chicago O'Hare Intl

Wed 8/26

5:55 pm-12:10 pm

2 stops30h 15m

$1,005

Quickest round-trip

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Thu 6/4

9:40 pm-9:40 am

1 stop24h 00m

Chicago O'Hare Intl

Thu 7/16

12:30 pm-1:05 am

1 stop24h 35m

$1,012

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Thu 4/23

9:35 am-4:46 am

2 stops31h 11m

Chicago O'Hare Intl

Mon 4/27

4:00 pm-9:35 am

2 stops29h 35m

$1,018

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Thu 6/18

9:35 am-8:40 am

1 stop35h 05m

Chicago O'Hare Intl

Sun 7/12

7:00 am-4:35 am

2 stops33h 35m

$1,024

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Fri 8/28

9:40 pm-11:08 pm

2 stops37h 28m

Lambert-St Louis

Tue 9/1

7:23 am-3:10 pm

2 stops43h 47m

$1,267

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Fri 8/28

9:40 pm-11:08 pm

2 stops37h 28m

Lambert-St Louis

Tue 9/1

7:23 am-5:45 am

2 stops34h 22m

$1,273

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Tue 9/8

9:35 pm-8:00 pm

2 stops34h 25m

Lambert-St Louis

Sat 10/3

5:20 am-5:05 am

1 stop35h 45m

$1,360

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 Bangkok 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

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Bangkok is in February. Flight prices, which tend to average around $1,015, 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 November is also cheap. Prices for this month can be found on momondo for an average of $1,024.

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

You are more likely to see cheaper flights to Illinois from Bangkok when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $1,137 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Bangkok for as low as $987 on momondo.

Cheap Bangkok to Illinois flight deals and tips

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

Fastest flight time	23h 30m
Direct flights	None

The fastest flight from Bangkok to Illinois takes 23h 30m

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

Search flight deals

When did momondo last update prices for flights from Bangkok to Illinois?
Prices for flights from Bangkok to Illinois refresh daily.
How many operators does momondo search for flights from Bangkok to Illinois?
The number of operators available for flights from Bangkok to Illinois is 7 as of March 2026.
How old do you have to be to fly from Bangkok to Illinois?
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 Bangkok 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 Bangkok to Illinois

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

Airline	Rating	Free Cancellation	Price
Japan Airlines	PriceFrom $681	Free Cancellation	Rating 8.3 1,747 reviews	Search Japan Airlines flights
Thai Airways	PriceFrom $720	Free Cancellation	Rating 7.8 394 reviews	Search Thai Airways flights
Korean Air	PriceFrom $925	Free Cancellation	Rating 8.4 1,205 reviews	Search Korean Air flights
ANA	PriceFrom $983	Free Cancellation	Rating 8.4 1,136 reviews	Search ANA flights
United Airlines	PriceFrom $987	Free Cancellation	Rating 7.4 9,458 reviews	Search United Airlines flights
Cathay Pacific	PriceFrom $1,036	Free Cancellation	Rating 7.6 1,222 reviews	Search Cathay Pacific flights
EVA Air	PriceFrom $1,063	Free Cancellation	Rating 8.4 1,381 reviews	Search EVA Air flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Bangkok to Illinois. Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from Bangkok to Illinois on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Bangkok 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 Bangkok to Illinois right now. Can momondo alert me if prices change?

Price alerts on flights to Illinois from Bangkok are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.