Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Illinois to Bangkok from $561

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 8/18. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Illinois to Bangkok

Cheap round-trip flights

Enter your travel dates to find the best prices.
Etihad Airways Logo
6:54 am - 11:55 pm
STL
-
BKK
29h 01m
2 stops
Etihad Airways Logo
8:30 am - 1:17 pm
BKK
-
STL
41h 47m
2 stops
$1,029Etihad Airways
Thu, Aug 20 - Wed, Nov 18
Etihad Airways Logo
2:59 pm - 6:00 pm
SPI
-
BKK
39h 01m
2 stops
Etihad Airways Logo
8:50 pm - 2:29 pm
BKK
-
SPI
30h 39m
2 stops
$1,029Etihad Airways
Fri, Oct 23 - Sun, Nov 15
Etihad Airways Logo
2:30 pm - 6:45 am
BMI
-
BKK
28h 15m
2 stops
Etihad Airways Logo
8:45 pm - 11:59 pm
BKK
-
BMI
39h 14m
2 stops
$1,029Etihad Airways
Sun, Oct 11 - Mon, Oct 19
ANA Logo
10:30 am - 12:20 am
ORD
-
BKK
24h 50m
1 stop
ANA Logo
7:10 am - 1:50 pm
BKK
-
ORD
19h 40m
1 stop
$1,031ANA
Mon, Nov 23 - Sat, Dec 5
Cathay Pacific Logo
4:15 pm - 12:10 am
ORD
-
BKK
19h 55m
1 stop
Cathay Pacific Logo
4:25 pm - 1:55 pm
BKK
-
ORD
33h 30m
1 stop
$1,032Cathay Pacific
Thu, Oct 8 - Sat, Oct 24
Korean Air Logo
11:15 am - 11:20 pm
ORD
-
BKK
23h 05m
1 stop
Korean Air Logo
9:30 pm - 8:40 am
BKK
-
ORD
24h 10m
1 stop
$1,034Korean Air
Fri, Nov 27 - Sat, Mar 13
Cathay Pacific Logo
4:00 pm - 11:05 am
ORD
-
BKK
31h 05m
1 stop
Cathay Pacific Logo
5:40 pm - 12:55 pm
BKK
-
ORD
32h 15m
1 stop
$1,035Cathay Pacific
Sat, Sep 5 - Sat, Nov 7
ANA Logo
11:50 am - 11:55 pm
ORD
-
BKK
24h 05m
1 stop
ANA Logo
7:00 am - 8:26 pm
BKK
-
ORD
25h 26m
2 stops
$1,037ANA
Fri, Aug 7 - Mon, Aug 31
Multiple Airlines Logo
11:01 am - 12:10 pm
STL
-
BKK
37h 09m
2 stops
Multiple Airlines Logo
9:00 pm - 5:30 pm
BKK
-
STL
32h 30m
2 stops
$1,037Multiple Airlines
Thu, Sep 10 - Thu, Sep 17
Multiple Airlines Logo
9:32 am - 11:55 pm
STL
-
BKK
26h 23m
2 stops
Multiple Airlines Logo
9:00 pm - 8:44 pm
BKK
-
STL
35h 44m
2 stops
$1,038Multiple Airlines
Wed, Sep 2 - Sat, Sep 19

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Delta flights from Illinois to Bangkok

Our best Delta deals on Illinois to Bangkok flight tickets
Delta
Aug 7
ORD8:48 amChicago O'Hare Intl
24h 57m
2 stops
BKK9:45 pmBangkok Suvarnabhumi
Aug 28
BKK11:30 pmBangkok Suvarnabhumi
34h 03m
2 stops
ORD9:33 pmChicago O'Hare Intl
$1,044
Delta
Aug 29
ORD7:00 amChicago O'Hare Intl
26h 45m
2 stops
BKK9:45 pmBangkok Suvarnabhumi
Sep 11
BKK2:35 amBangkok Suvarnabhumi
31h 03m
2 stops
ORD9:38 pmChicago O'Hare Intl
$1,045
Delta
Sep 23
MDW6:05 amChicago Midway
29h 30m
2 stops
BKK11:35 pmBangkok Suvarnabhumi
Sep 29
BKK11:30 pmBangkok Suvarnabhumi
25h 09m
2 stops
MDW12:39 pmChicago Midway
$1,051

Etihad Airways flights from Illinois to Bangkok

Our best Etihad Airways deals on Illinois to Bangkok flight tickets
Etihad Airways
Oct 23
SPI2:59 pmSpringfield Capital
39h 01m
2 stops
BKK6:00 pmBangkok Suvarnabhumi
Nov 15
BKK8:50 pmBangkok Suvarnabhumi
30h 39m
2 stops
SPI2:29 pmSpringfield Capital
$1,029
Etihad Airways
Oct 23
SPI2:59 pmSpringfield Capital
32h 46m
2 stops
BKK11:45 amBangkok Suvarnabhumi
Nov 14
BKK2:55 amBangkok Suvarnabhumi
34h 14m
2 stops
SPI12:09 amSpringfield Capital
$1,030
Etihad Airways
Oct 1
PIA5:28 pmGreater Peoria
42h 27m
2 stops
BKK11:55 pmBangkok Suvarnabhumi
Oct 30
BKK8:50 pmBangkok Suvarnabhumi
39h 06m
2 stops
PIA11:56 pmGreater Peoria
$1,035

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 July 2, 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

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Thu 8/20

6:54 am-11:55 pm

2 stops29h 01m

Bangkok Suvarnabhumi

Wed 11/18

8:30 am-1:17 pm

2 stops41h 47m

$1,029

SpringfieldBangkok

SPI - BKK

SPIBKK

Springfield Capital

Fri 10/23

2:59 pm-6:00 pm

2 stops39h 01m

Bangkok Suvarnabhumi

Sun 11/15

8:50 pm-2:29 pm

2 stops30h 39m

$1,029

BloomingtonBangkok

BMI - BKK

BMIBKK

Bloomington-Normal

Sun 10/11

2:30 pm-6:45 am

2 stops28h 15m

Bangkok Suvarnabhumi

Mon 10/19

8:45 pm-11:59 pm

2 stops39h 14m

$1,029
Quickest round-trip

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Mon 11/23

10:30 am-12:20 am

1 stop24h 50m

Bangkok Suvarnabhumi

Sat 12/5

7:10 am-1:50 pm

1 stop19h 40m

$1,031

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Thu 10/8

4:15 pm-12:10 am

1 stop19h 55m

Bangkok Suvarnabhumi

Sat 10/24

4:25 pm-1:55 pm

1 stop33h 30m

$1,032

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Fri 11/27

11:15 am-11:20 pm

1 stop23h 05m

Bangkok Suvarnabhumi

Sat 3/13

9:30 pm-8:40 am

1 stop24h 10m

$1,034

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Sat 9/5

4:00 pm-11:05 am

1 stop31h 05m

Bangkok Suvarnabhumi

Sat 11/7

5:40 pm-12:55 pm

1 stop32h 15m

$1,035

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Fri 8/7

11:50 am-11:55 pm

1 stop24h 05m

Bangkok Suvarnabhumi

Mon 8/31

7:00 am-8:26 pm

2 stops25h 26m

$1,037

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Thu 9/10

11:01 am-12:10 pm

2 stops37h 09m

Bangkok Suvarnabhumi

Thu 9/17

9:00 pm-5:30 pm

2 stops32h 30m

$1,037

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Wed 9/2

9:32 am-11:55 pm

2 stops26h 23m

Bangkok Suvarnabhumi

Sat 9/19

9:00 pm-8:44 pm

2 stops35h 44m

$1,038

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 July, then book flights to Bangkok from Illinois during January instead. Flights to Bangkok in January, while not as cheap as those in July, still average around $820.

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 $976 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 $862 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

19h 55m

Direct flights

None
The fastest flight from Illinois to Bangkok takes 19h 55m
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 $602Free CancellationRating
5.6
2,956 reviews
Search Air India flights
Cathay PacificPriceFrom $665Free CancellationRating
7.6
1,402 reviews
Search Cathay Pacific flights
ANAPriceFrom $679Free CancellationRating
8.3
1,260 reviews
Search ANA flights
Korean AirPriceFrom $697Free CancellationRating
8.4
1,220 reviews
Search Korean Air flights
United AirlinesPriceFrom $702Free CancellationRating
7.4
9,927 reviews
Search United Airlines flights
Turkish AirlinesPriceFrom $710Free CancellationRating
7.4
4,438 reviews
Search Turkish Airlines flights
DeltaPriceFrom $749Free CancellationRating
7.8
8,452 reviews
Search Delta flights
American AirlinesPriceFrom $790Free CancellationRating
7.1
11,763 reviews
Search American Airlines flights
EVA AirPriceFrom $804Free CancellationRating
8.5
1,484 reviews
Search EVA Air flights
Japan AirlinesPriceFrom $815Free CancellationRating
8.3
1,858 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.

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 8/1
Sat 8/8
By creating a price alert you accept our terms of use and privacy policy.

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