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

United Airlines, Delta, and Cathay Pacific are the most popular carriers operating from Illinois to Bangkok

What airlines fly to Bangkok?

EVA Air, Cathay Pacific and Korean Air are the top three most popular airlines that fly to Bangkok from Illinois according to our data. EVA Air is the first choice among our users, with 35% 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.

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 30m on average. Another popular route from Illinois to Bangkok is flying from Peoria to Bangkok Suvarnabhumi Airport, which will take roughly 29h 20m. Keep in mind that layovers or delays could extend your travel time.

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 2026.

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.

$439 Cheap Flights from Illinois to Bangkok in 2026

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One-way

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Cheap round-trip flights

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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

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 - Mon, Sep 21

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

21h 55m1 stop Abu Dhabi Zayed Intl

7:55 pm - 3:00 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

32h 05m1 stop Abu Dhabi Zayed Intl

$858Etihad Airways

Sat, Oct 3 - Mon, Nov 30

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

21h 55m1 stop Abu Dhabi Zayed Intl

7:55 pm - 3:00 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

32h 05m1 stop Abu Dhabi Zayed Intl

$858Etihad Airways

Fri, Oct 2 - Mon, Nov 30

5:30 pm - 12:50 pmORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

31h 20m3 stops Calgary Vancouver Intl Guangzhou Baiyun

6:05 pm - 4:35 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

34h 30m3 stops Guangzhou Baiyun Vancouver Intl Winnipeg

$870Multiple Airlines

Tue, Sep 1 - Tue, Sep 15

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

20h 40m1 stop Hong Kong Intl

5:40 pm - 12:55 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

32h 15m1 stop Hong Kong Intl

$883Cathay Pacific

Sun, Nov 15 - Sat, Nov 21

2:35 pm - 10:40 amORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

31h 05m1 stop Hong Kong Intl

5:40 pm - 12:55 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

32h 15m1 stop Hong Kong Intl

$884Cathay Pacific

Mon, Nov 23 - Mon, Dec 7

4:25 pm - 5:10 amORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

23h 45m1 stop Tokyo Haneda

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

35h 10m1 stop Tokyo Haneda

$885United Airlines

Mon, Nov 30 - Wed, Dec 9

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

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

21h 55m1 stop Abu Dhabi Zayed Intl

5:15 pm - 8:45 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

39h 30m1 stop Taipei City Taiwan Taoyuan Intl

$922Multiple Airlines

Tue, Sep 1 - Fri, Sep 4

Cheap last minute flights

Enter your travel dates to find the best prices.

5:45 pm - 4:35 amORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

22h 50m1 stop Tokyo Haneda

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

41h 50m1 stop Tokyo Haneda

$885United Airlines

Wed, Aug 19 - Wed, Aug 26

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

25h 45m2 stops Los Angeles Hong Kong Intl

9:35 am - 8:40 amBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

35h 05m1 stop Tokyo Haneda

$889United Airlines

Wed, Aug 19 - Wed, Aug 26

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

28h 20m1 stop Tokyo Haneda

1:55 pm - 3:25 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

37h 30m1 stop Tokyo Haneda

$897ANA

Wed, Aug 19 - Wed, Aug 26

8:40 am - 11:55 pmORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

27h 15m2 stops San Francisco Tokyo Narita

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

29h 50m1 stop Tokyo Haneda

$900ANA

Wed, Aug 19 - Wed, Aug 26

4:00 pm - 3:25 pmORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

35h 25m1 stop Hong Kong Intl

12:10 pm - 2:20 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

38h 10m1 stop Hong Kong Intl

$911Cathay Pacific

Sun, Aug 23 - Tue, Sep 8

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

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

37h 55m2 stops Denver Intl Tokyo Narita

3:45 pm - 3:05 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

35h 20m2 stops Hong Kong Intl Tokyo Haneda

$926Lufthansa

Sun, Aug 23 - Mon, Sep 7

12:30 am - 1:20 amORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

36h 50m1 stop Taipei City Taiwan Taoyuan Intl

4:45 pm - 8:45 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

40h 00m1 stop Taipei City Taiwan Taoyuan Intl

$942EVA Air

Thu, Aug 20 - Mon, Aug 31

12:30 am - 10:50 amORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

22h 20m1 stop Taipei City Taiwan Taoyuan Intl

4:45 pm - 9:10 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

40h 25m1 stop Taipei City Taiwan Taoyuan Intl

$1,160EVA Air

Thu, Aug 20 - Sun, Aug 23

4:00 pm - 11:30 amORD Chicago O'Hare Intl-BKK Bangkok Suvarnabhumi

31h 30m1 stop Hong Kong Intl

12:10 pm - 2:20 pmBKK Bangkok Suvarnabhumi-ORD Chicago O'Hare Intl

38h 10m1 stop Hong Kong Intl

$2,324Cathay Pacific

Sat, Aug 22 - Sat, Sep 5

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Air Canada flights from Illinois to Bangkok

Our best Air Canada deals on Illinois to Bangkok flight tickets

Air Canada

Sep 14

ORD11:05 amChicago O'Hare Intl

30h 00m

2 stops

BKK5:05 amBangkok Suvarnabhumi

Oct 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

Sep 2

ORD12:45 pmChicago O'Hare Intl

28h 20m

2 stops

BKK5:05 amBangkok Suvarnabhumi

Sep 30

BKK7:05 amBangkok Suvarnabhumi

25h 01m

1 stop

ORD8:06 pmChicago O'Hare Intl

$858

Etihad Airways flights from Illinois to Bangkok

Our best Etihad Airways deals on Illinois to Bangkok flight tickets

Etihad Airways

Jan 8

ORD8:20 pmChicago O'Hare Intl

21h 55m

1 stop

BKK7:15 amBangkok Suvarnabhumi

Jan 21

BKK8:50 pmBangkok Suvarnabhumi

24h 05m

1 stop

ORD7:55 amChicago O'Hare Intl

$859

Etihad Airways

Oct 23

ORD2:00 pmChicago O'Hare Intl

21h 55m

1 stop

BKK11:55 pmBangkok Suvarnabhumi

Mar 8

BKK2:40 pmBangkok Suvarnabhumi

30h 15m

1 stop

ORD7:55 amChicago O'Hare Intl

$860

Etihad Airways

Jan 21

ORD8:20 pmChicago O'Hare Intl

38h 00m

1 stop

BKK11:20 pmBangkok Suvarnabhumi

Feb 8

BKK7:55 pmBangkok Suvarnabhumi

25h 00m

1 stop

ORD7:55 amChicago O'Hare Intl

$864

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

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

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

Mon 9/21

7:05 am-8:12 pm

2 stops25h 07m

$854

ChicagoBangkok

ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi

ORDBKK

Chicago O'Hare Intl

Sat 10/3

2:00 pm-11:55 pm

1 stop21h 55m

Bangkok Suvarnabhumi

Mon 11/30

7:55 pm-3:00 pm

1 stop32h 05m

$858

ChicagoBangkok

ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi

ORDBKK

Chicago O'Hare Intl

Fri 10/2

2:00 pm-11:55 pm

1 stop21h 55m

Bangkok Suvarnabhumi

Mon 11/30

7:55 pm-3:00 pm

1 stop32h 05m

$858

ChicagoBangkok

ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi

ORDBKK

Chicago O'Hare Intl

Tue 9/1

5:30 pm-12:50 pm

3 stops31h 20m

Bangkok Suvarnabhumi

Tue 9/15

6:05 pm-4:35 pm

3 stops34h 30m

$870

ChicagoBangkok

ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi

ORDBKK

Chicago O'Hare Intl

Sun 11/15

2:35 pm-12:15 am

1 stop20h 40m

Bangkok Suvarnabhumi

Sat 11/21

5:40 pm-12:55 pm

1 stop32h 15m

$883

ChicagoBangkok

ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi

ORDBKK

Chicago O'Hare Intl

Mon 11/23

2:35 pm-10:40 am

1 stop31h 05m

Bangkok Suvarnabhumi

Mon 12/7

5:40 pm-12:55 pm

1 stop32h 15m

$884

ChicagoBangkok

ORD Chicago O'Hare Intl - BKK Bangkok Suvarnabhumi

ORDBKK

Chicago O'Hare Intl

Mon 11/30

4:25 pm-5:10 am

1 stop23h 45m

Bangkok Suvarnabhumi

Wed 12/9

9:10 am-7:20 am

1 stop35h 10m

$885

Quickest round-trip

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

Tue 9/1

2:00 pm-11:55 pm

1 stop21h 55m

Bangkok Suvarnabhumi

Fri 9/4

5:15 pm-8:45 pm

1 stop39h 30m

$922

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 February instead. Flights to Bangkok in February, while not as cheap as those in September, still average around $876.

How far in advance should I book a flight from Illinois 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 $1,013 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 $918 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	$425
Fastest flight time	21h 10m
Direct flights	None

The best one-way flight to Bangkok from Illinois in the past 72 hours is $425. The best round-trip flight deal from Illinois to Bangkok found on momondo in the last 72 hours is $854.

The fastest flight from Illinois to Bangkok takes 21h 10m

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

Search flight deals

Frequently asked questions about flying 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 2026.
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
Air India	PriceFrom $601	Free Cancellation	Rating 5.5 2,944 reviews	Search Air India flights
Cathay Pacific	PriceFrom $674	Free Cancellation	Rating 7.6 1,453 reviews	Search Cathay Pacific flights
ANA	PriceFrom $688	Free Cancellation	Rating 8.3 1,298 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 4,477 reviews	Search Turkish Airlines flights
United Airlines	PriceFrom $723	Free Cancellation	Rating 7.4 10,103 reviews	Search United Airlines flights
Delta	PriceFrom $749	Free Cancellation	Rating 7.8 8,498 reviews	Search Delta flights
American Airlines	PriceFrom $790	Free Cancellation	Rating 7.1 11,958 reviews	Search American Airlines flights
EVA Air	PriceFrom $804	Free Cancellation	Rating 8.5 1,519 reviews	Search EVA Air flights
Japan Airlines	PriceFrom $815	Free Cancellation	Rating 8.3 1,904 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.

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Cheap flights from Illinois to Bangkok from $425

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Bangkok departing on 11/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Illinois to Bangkok

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Air Canada flights from Illinois to Bangkok

Our best Air Canada deals on Illinois to Bangkok flight tickets

Etihad Airways flights from Illinois to Bangkok

Our best Etihad Airways deals on Illinois to Bangkok flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Illinois to Bangkok that are best for you.

See travel insights to Bangkok from

How to get the cheapest flight ticket from Illinois to Bangkok

What is the cheapest month to fly to Bangkok?

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

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

What airlines fly to Bangkok?

How long does it take to fly to Bangkok?

Cheap Illinois to Bangkok flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Illinois to Bangkok

Best airlines flying from Illinois to Bangkok

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

Why use momondo?

An easier way to manage your Bangkok trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Thailand

Fly into one of these airports located in Bangkok

Airports listed have a maximum distance of 15.4 mi from Bangkok

Fly your favorite airline to Bangkok

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Popular cities in Thailand

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Illinois

According to popular flight searches on momondo this year

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According to popular flight searches on momondo this year