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Cheap flights from Illinois to Bangkok from $519

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 7/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Illinois to Bangkok

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
7:30 am - 11:35 pm
ORD
-
BKK
28h 05m
2 stops
Delta Logo
2:35 am - 11:46 pm
BKK
-
ORD
33h 11m
2 stops
$994Delta
Mon, Sep 7 - Fri, Oct 16
Cathay Pacific Logo
4:15 pm - 6:00 pm
ORD
-
BKK
37h 45m
1 stop
Cathay Pacific Logo
11:40 am - 12:55 pm
BKK
-
ORD
38h 15m
1 stop
$996Cathay Pacific
Thu, Oct 15 - Tue, Nov 10
Multiple Airlines Logo
6:54 pm - 11:30 am
STL
-
BKK
28h 36m
2 stops
Multiple Airlines Logo
9:35 pm - 12:49 pm
BKK
-
STL
27h 14m
2 stops
$998Multiple Airlines
Sun, Sep 6 - Tue, Sep 15
Delta Logo
6:59 pm - 9:30 pm
ORD
-
BKK
37h 31m
2 stops
Delta Logo
9:40 am - 11:50 pm
BKK
-
ORD
27h 10m
2 stops
$999Delta
Wed, Nov 4 - Sun, Nov 22
Korean Air Logo
12:10 pm - 11:35 pm
ORD
-
BKK
23h 25m
1 stop
Korean Air Logo
9:50 am - 9:30 am
BKK
-
ORD
35h 40m
1 stop
$1,014Korean Air
Sun, Oct 11 - Sun, Oct 25
Etihad Airways Logo
7:34 am - 11:50 pm
STL
-
BKK
28h 16m
2 stops
Etihad Airways Logo
2:40 pm - 5:54 pm
BKK
-
STL
40h 14m
2 stops
$1,031Etihad Airways
Thu, Aug 20 - Wed, Nov 18
Etihad Airways Logo
3:01 pm - 6:10 pm
BMI
-
BKK
39h 09m
2 stops
Etihad Airways Logo
3:05 pm - 2:07 pm
BKK
-
BMI
35h 02m
2 stops
$1,031Etihad Airways
Thu, Sep 10 - Fri, Sep 18
Multiple Airlines Logo
10:22 am - 6:45 am
STL
-
BKK
32h 23m
2 stops
Multiple Airlines Logo
3:15 am - 8:03 pm
BKK
-
STL
28h 48m
2 stops
$1,038Multiple Airlines
Wed, Sep 2 - Fri, Sep 18
Qatar Airways Logo
3:01 pm - 6:20 am
BMI
-
BKK
27h 19m
2 stops
Qatar Airways Logo
8:00 pm - 10:59 pm
BKK
-
BMI
38h 59m
2 stops
$1,271Qatar Airways
Thu, Sep 24 - Mon, Sep 28
Qatar Airways Logo
7:19 am - 7:15 am
EVV
-
BKK
35h 56m
2 stops
Qatar Airways Logo
8:30 pm - 11:24 pm
BKK
-
EVV
38h 54m
2 stops
$1,291Qatar Airways
Thu, Oct 22 - Mon, Oct 26

Etihad Airways flights from Illinois to Bangkok

Our best Etihad Airways deals on Illinois to Bangkok flight tickets
Etihad Airways
Aug 20
STL7:34 amLambert-St Louis
28h 16m
2 stops
BKK11:50 pmBangkok Suvarnabhumi
Nov 18
BKK2:40 pmBangkok Suvarnabhumi
40h 14m
2 stops
STL5:54 pmLambert-St Louis
$1,031
Etihad Airways
Jul 7
PIA9:50 amGreater Peoria
26h 00m
2 stops
BKK11:50 pmBangkok Suvarnabhumi
Jul 26
BKK9:00 pmBangkok Suvarnabhumi
38h 58m
2 stops
PIA11:58 pmGreater Peoria
$1,045
Etihad Airways
Jul 28
ORD2:00 pmChicago O'Hare Intl
21h 50m
1 stop
BKK11:50 pmBangkok Suvarnabhumi
Aug 18
BKK9:15 amBangkok Suvarnabhumi
35h 20m
1 stop
ORD8:35 amChicago O'Hare Intl
$1,047

Turkish Airlines flights from Illinois to Bangkok

Our best Turkish Airlines deals on Illinois to Bangkok flight tickets
Turkish Airlines
Oct 22
ORD11:25 amChicago O'Hare Intl
30h 15m
1 stop
BKK5:40 amBangkok Suvarnabhumi
Nov 4
BKK10:10 amBangkok Suvarnabhumi
37h 55m
1 stop
ORD11:05 amChicago O'Hare Intl
$1,036
Turkish Airlines
Nov 5
ORD12:50 pmChicago O'Hare Intl
26h 25m
1 stop
BKK4:15 amBangkok Suvarnabhumi
Nov 26
BKK11:45 pmBangkok Suvarnabhumi
23h 20m
1 stop
ORD10:05 amChicago O'Hare Intl
$1,037
Turkish Airlines
Oct 1
ORD8:10 pmChicago O'Hare Intl
21h 30m
1 stop
BKK5:40 amBangkok Suvarnabhumi
Nov 5
BKK10:20 pmBangkok Suvarnabhumi
25h 45m
1 stop
ORD11:05 amChicago O'Hare Intl
$1,056

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Bangkok that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated May 11, 2026.
Use the filters below to find and compare flights from Illinois to Bangkok that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Mon 9/7

7:30 am-11:35 pm

2 stops28h 05m

Bangkok Suvarnabhumi

Fri 10/16

2:35 am-11:46 pm

2 stops33h 11m

$994

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Thu 10/15

4:15 pm-6:00 pm

1 stop37h 45m

Bangkok Suvarnabhumi

Tue 11/10

11:40 am-12:55 pm

1 stop38h 15m

$996
Quickest round-trip

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Sun 9/6

6:54 pm-11:30 am

2 stops28h 36m

Bangkok Suvarnabhumi

Tue 9/15

9:35 pm-12:49 pm

2 stops27h 14m

$998

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Wed 11/4

6:59 pm-9:30 pm

2 stops37h 31m

Bangkok Suvarnabhumi

Sun 11/22

9:40 am-11:50 pm

2 stops27h 10m

$999

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Sun 10/11

12:10 pm-11:35 pm

1 stop23h 25m

Bangkok Suvarnabhumi

Sun 10/25

9:50 am-9:30 am

1 stop35h 40m

$1,014

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Thu 8/20

7:34 am-11:50 pm

2 stops28h 16m

Bangkok Suvarnabhumi

Wed 11/18

2:40 pm-5:54 pm

2 stops40h 14m

$1,031

BloomingtonBangkok

BMI - BKK

BMIBKK

Bloomington-Normal

Thu 9/10

3:01 pm-6:10 pm

2 stops39h 09m

Bangkok Suvarnabhumi

Fri 9/18

3:05 pm-2:07 pm

2 stops35h 02m

$1,031

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Wed 9/2

10:22 am-6:45 am

2 stops32h 23m

Bangkok Suvarnabhumi

Fri 9/18

3:15 am-8:03 pm

2 stops28h 48m

$1,038

BloomingtonBangkok

BMI - BKK

BMIBKK

Bloomington-Normal

Thu 9/24

3:01 pm-6:20 am

2 stops27h 19m

Bangkok Suvarnabhumi

Mon 9/28

8:00 pm-10:59 pm

2 stops38h 59m

$1,271

EvansvilleBangkok

EVV - BKK

EVVBKK

Evansville Dress Regional

Thu 10/22

7:19 am-7:15 am

2 stops35h 56m

Bangkok Suvarnabhumi

Mon 10/26

8:30 pm-11:24 pm

2 stops38h 54m

$1,291

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Bangkok from

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

What is the cheapest month to fly to Bangkok?

If you aren’t able to travel during the month of January, then book flights to Bangkok from Illinois during February instead. Flights to Bangkok in February, while not as cheap as those in January, still average around $894.

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 $962 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 $828 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

Fastest flight time

21h 50m

Direct flights

None
The fastest flight from Illinois to Bangkok takes 21h 50m
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?

  • 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 IndiaPriceFrom $611Free CancellationRating
5.5
2,957 reviews
Search Air India flights
Cathay PacificPriceFrom $665Free CancellationRating
7.6
1,329 reviews
Search Cathay Pacific flights
ANAPriceFrom $680Free CancellationRating
8.3
1,208 reviews
Search ANA flights
Korean AirPriceFrom $697Free CancellationRating
8.4
1,217 reviews
Search Korean Air flights
United AirlinesPriceFrom $703Free CancellationRating
7.4
9,701 reviews
Search United Airlines flights
Turkish AirlinesPriceFrom $710Free CancellationRating
7.4
4,360 reviews
Search Turkish Airlines flights
DeltaPriceFrom $749Free CancellationRating
7.9
8,446 reviews
Search Delta flights
American AirlinesPriceFrom $790Free CancellationRating
7.1
11,661 reviews
Search American Airlines flights
EVA AirPriceFrom $806Free CancellationRating
8.5
1,445 reviews
Search EVA Air flights
Japan AirlinesPriceFrom $815Free CancellationRating
8.3
1,817 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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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
Bangkok Suvarnabhumi Airport
Bangkok Don Mueang Intl Airport