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Cheap flights from Illinois to Bangkok from $434

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 1/12. 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.
Air India Logo
1:10 pm - 2:15 pmORD-BKK
37h 05m1 stop
Air India Logo
5:55 pm - 11:10 amBKK-ORD
29h 15m2 stops
$798Air India
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Fri, Apr 3 - Sun, Apr 12
United Airlines Logo
6:00 am - 4:35 amORD-BKK
34h 35m2 stops
United Airlines Logo
9:35 am - 3:15 pmBKK-ORD
41h 40m1 stop
$800United Airlines
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Wed, May 13 - Tue, May 19
Turkish Airlines Logo
8:20 pm - 8:40 amORD-BKK
23h 20m1 stop
Turkish Airlines Logo
10:10 am - 10:05 amBKK-ORD
36h 55m1 stop
$803Turkish Airlines
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Sun, Feb 22 - Tue, Mar 3
ANA Logo
4:25 pm - 6:30 amORD-BKK
25h 05m1 stop
ANA Logo
10:25 pm - 7:20 amBKK-ORD
21h 55m1 stop
$805ANA
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Mon, Jan 26 - Wed, Feb 18
ANA Logo
8:00 am - 11:55 pmORD-BKK
27h 55m2 stops
ANA Logo
9:35 pm - 8:40 amBKK-ORD
23h 05m1 stop
$807ANA
Find Deal
Wed, Apr 29 - Wed, May 6
Turkish Airlines Logo
11:50 am - 4:20 amORD-BKK
27h 30m1 stop
Turkish Airlines Logo
10:10 am - 10:05 amBKK-ORD
36h 55m1 stop
$808Turkish Airlines
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Fri, Jan 30 - Wed, Mar 4
Multiple Airlines Logo
1:30 pm - 2:30 amORD-DMK
24h 00m1 stop
Multiple Airlines Logo
4:50 pm - 11:30 amDMK-ORD
31h 40m2 stops
$887Multiple Airlines
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Sun, Jan 25 - Tue, Feb 17
Multiple Airlines Logo
1:30 pm - 2:30 amORD-DMK
24h 00m1 stop
Multiple Airlines Logo
4:50 pm - 11:30 amDMK-ORD
31h 40m2 stops
$893Multiple Airlines
Find Deal
Fri, Feb 13 - Sun, Feb 22
Delta Logo
6:00 am - 11:20 pmMDW-BKK
28h 20m2 stops
Delta Logo
9:40 am - 10:44 pmBKK-MDW
26h 04m2 stops
$906Delta
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Wed, Feb 4 - Tue, Mar 3
Delta Logo
9:30 am - 12:55 amMDW-BKK
27h 25m2 stops
Delta Logo
9:40 am - 8:54 amBKK-MDW
35h 14m2 stops
$911Delta
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Mon, Mar 9 - Thu, Mar 12

Air India flights from Illinois to Bangkok

Our best Air India deals on Illinois to Bangkok flight tickets
Air India
Apr 3
ORD1:10 pmChicago O'Hare Intl
37h 05m
1 stop
BKK2:15 pmBangkok Suvarnabhumi
Apr 12
BKK5:55 pmBangkok Suvarnabhumi
29h 15m
2 stops
ORD11:10 amChicago O'Hare Intl
$798
Find similar
Air India
Apr 12
ORD1:10 pmChicago O'Hare Intl
43h 15m
1 stop
BKK8:25 pmBangkok Suvarnabhumi
Apr 19
BKK5:55 pmBangkok Suvarnabhumi
29h 15m
2 stops
ORD11:10 amChicago O'Hare Intl
$801
Find similar
Air India
Jan 12
ORD1:30 pmChicago O'Hare Intl
29h 20m
1 stop
BKK7:50 amBangkok Suvarnabhumi
Jan 22
BKK5:55 pmBangkok Suvarnabhumi
30h 35m
2 stops
ORD11:30 amChicago O'Hare Intl
$815
Find similar

United Airlines flights from Illinois to Bangkok

Our best United Airlines deals on Illinois to Bangkok flight tickets
United Airlines
May 13
ORD6:00 amChicago O'Hare Intl
34h 35m
2 stops
BKK4:35 amBangkok Suvarnabhumi
May 19
BKK9:35 amBangkok Suvarnabhumi
41h 40m
1 stop
ORD3:15 pmChicago O'Hare Intl
$800
Find similar
United Airlines
Apr 30
ORD7:15 amChicago O'Hare Intl
28h 40m
2 stops
BKK11:55 pmBangkok Suvarnabhumi
May 11
BKK9:35 amBangkok Suvarnabhumi
35h 05m
1 stop
ORD8:40 amChicago O'Hare Intl
$804
Find similar
United Airlines
Apr 6
ORD5:45 pmChicago O'Hare Intl
22h 50m
1 stop
BKK4:35 amBangkok Suvarnabhumi
Apr 22
BKK9:35 amBangkok Suvarnabhumi
31h 26m
2 stops
ORD5:01 amChicago O'Hare Intl
$806
Find similar

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 November 23, 2025.
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

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Fri 4/3

1:10 pm-2:15 pm

1 stop37h 05m

Bangkok Suvarnabhumi

Sun 4/12

5:55 pm-11:10 am

2 stops29h 15m

$798

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Wed 5/13

6:00 am-4:35 am

2 stops34h 35m

Bangkok Suvarnabhumi

Tue 5/19

9:35 am-3:15 pm

1 stop41h 40m

$800

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Sun 2/22

8:20 pm-8:40 am

1 stop23h 20m

Bangkok Suvarnabhumi

Tue 3/3

10:10 am-10:05 am

1 stop36h 55m

$803

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Mon 1/26

4:25 pm-6:30 am

1 stop25h 05m

Bangkok Suvarnabhumi

Wed 2/18

10:25 pm-7:20 am

1 stop21h 55m

$805

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Wed 4/29

8:00 am-11:55 pm

2 stops27h 55m

Bangkok Suvarnabhumi

Wed 5/6

9:35 pm-8:40 am

1 stop23h 05m

$807

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Fri 1/30

11:50 am-4:20 am

1 stop27h 30m

Bangkok Suvarnabhumi

Wed 3/4

10:10 am-10:05 am

1 stop36h 55m

$808

ChicagoBangkok

ORD - DMK

ORDDMK

Chicago O'Hare Intl

Sun 1/25

1:30 pm-2:30 am

1 stop24h 00m

Bangkok Don Mueang Intl

Tue 2/17

4:50 pm-11:30 am

2 stops31h 40m

$887

ChicagoBangkok

ORD - DMK

ORDDMK

Chicago O'Hare Intl

Fri 2/13

1:30 pm-2:30 am

1 stop24h 00m

Bangkok Don Mueang Intl

Sun 2/22

4:50 pm-11:30 am

2 stops31h 40m

$893

ChicagoBangkok

MDW - BKK

MDWBKK

Chicago Midway

Wed 2/4

6:00 am-11:20 pm

2 stops28h 20m

Bangkok Suvarnabhumi

Tue 3/3

9:40 am-10:44 pm

2 stops26h 04m

$906

ChicagoBangkok

MDW - BKK

MDWBKK

Chicago Midway

Mon 3/9

9:30 am-12:55 am

2 stops27h 25m

Bangkok Suvarnabhumi

Thu 3/12

9:40 am-8:54 am

2 stops35h 14m

$911

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 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 $837.

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 $1,002 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 $858 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?

  • 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 $625Free CancellationRating
5.5
2,946 reviews
Search Air India flights
Cathay PacificPriceFrom $674Free CancellationRating
7.6
1,068 reviews
Search Cathay Pacific flights
ANAPriceFrom $681Free CancellationRating
8.4
1,010 reviews
Search ANA flights
Korean AirPriceFrom $698Free CancellationRating
8.4
1,170 reviews
Search Korean Air flights
United AirlinesPriceFrom $708Free CancellationRating
7.4
9,036 reviews
Search United Airlines flights
IndiGoPriceFrom $735Free CancellationRating
6.9
498 reviews
Search IndiGo flights
Turkish AirlinesPriceFrom $742Free CancellationRating
7.3
4,050 reviews
Search Turkish Airlines flights
DeltaPriceFrom $745Free CancellationRating
7.9
8,000 reviews
Search Delta flights
Etihad AirwaysPriceFrom $800Free CancellationRating
7.4
1,312 reviews
Search Etihad Airways flights
Japan AirlinesPriceFrom $825Free CancellationRating
8.3
1,625 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