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Cheap flights from Illinois to Bangkok from $377

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 11/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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.
Korean Air Logo
11:25 am - 11:20 pmORD-BKK
22h 55m1 stop
Korean Air Logo
12:55 am - 9:40 amBKK-ORD
20h 45m1 stop
$686Korean Air
Find Deal
Wed, Feb 18 - Wed, Mar 11
Air India Logo
1:30 pm - 7:50 amORD-BKK
29h 20m1 stop
Air India Logo
5:55 pm - 7:25 amBKK-ORD
25h 30m1 stop
$688Air India
Find Deal
Mon, Feb 16 - Wed, Apr 15
Turkish Airlines Logo
9:20 pm - 3:05 pmORD-BKK
29h 45m1 stop
Turkish Airlines Logo
5:50 am - 6:25 pmBKK-ORD
25h 35m1 stop
$692Turkish Airlines
Find Deal
Mon, Oct 27 - Tue, Nov 11
Turkish Airlines Logo
11:50 am - 3:05 pmORD-BKK
38h 15m1 stop
Turkish Airlines Logo
11:15 pm - 10:05 amBKK-ORD
23h 50m1 stop
$701Turkish Airlines
Find Deal
Thu, Nov 27 - Wed, Dec 3
Delta Logo
7:47 am - 12:45 amORD-BKK
27h 58m2 stops
Delta Logo
9:40 am - 7:55 pmBKK-ORD
23h 15m2 stops
$709Delta
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Tue, Nov 25 - Thu, Dec 4
Delta Logo
6:00 am - 11:20 pmMDW-BKK
28h 20m2 stops
Delta Logo
9:30 pm - 11:49 pmBKK-MDW
39h 19m2 stops
$709Delta
Find Deal
Mon, Nov 17 - Wed, Dec 3
Multiple Airlines Logo
4:14 pm - 4:30 pmSTL-BKK
35h 16m2 stops
Multiple Airlines Logo
1:45 pm - 11:54 pmBKK-STL
23h 09m2 stops
$844Multiple Airlines
Find Deal
Thu, Nov 13 - Mon, Nov 24
Multiple Airlines Logo
3:57 pm - 4:40 pmSTL-BKK
36h 43m2 stops
Multiple Airlines Logo
1:45 pm - 3:18 pmBKK-STL
38h 33m2 stops
$850Multiple Airlines
Find Deal
Tue, Oct 21 - Wed, Nov 12
Japan Airlines Logo
6:00 am - 4:25 pmSTL-BKK
45h 25m2 stops
Japan Airlines Logo
1:10 am - 11:08 pmBKK-STL
34h 58m2 stops
$960Japan Airlines
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Wed, Jan 7 - Tue, Mar 3
Japan Airlines Logo
7:38 am - 11:35 pmPIA-BKK
26h 57m2 stops
Japan Airlines Logo
8:05 am - 4:32 pmBKK-PIA
21h 27m2 stops
$1,347Japan Airlines
Find Deal
Thu, Jan 8 - Thu, Jan 22

Cathay Pacific flights from Illinois to Bangkok Suvarnabhumi Airport

Our best Cathay Pacific deals on Illinois to Bangkok Suvarnabhumi Airport flight tickets
Cathay Pacific
Jan 8
PIA7:38 amGreater Peoria
27h 37m
2 stops
BKK12:15 amBangkok Suvarnabhumi
Jan 22
BKK7:55 amBangkok Suvarnabhumi
21h 37m
2 stops
PIA4:32 pmGreater Peoria
$977
Find similar
Cathay Pacific
Oct 7
ORD4:00 pmChicago O'Hare Intl
36h 30m
1 stop
BKK4:30 pmBangkok Suvarnabhumi
Oct 12
BKK4:25 pmBangkok Suvarnabhumi
34h 00m
1 stop
ORD2:25 pmChicago O'Hare Intl
$984
Find similar
Cathay Pacific
Oct 8
ORD4:00 pmChicago O'Hare Intl
19h 50m
1 stop
BKK11:50 pmBangkok Suvarnabhumi
Oct 17
BKK12:30 pmBangkok Suvarnabhumi
37h 55m
1 stop
ORD2:25 pmChicago O'Hare Intl
$1,034
Find similar

United Airlines flights from Illinois to Bangkok Suvarnabhumi Airport

Our best United Airlines deals on Illinois to Bangkok Suvarnabhumi Airport flight tickets
United Airlines
Nov 13
STL8:20 amLambert-St Louis
38h 05m
3 stops
BKK11:25 amBangkok Suvarnabhumi
Nov 24
BKK4:55 pmBangkok Suvarnabhumi
34h 29m
3 stops
STL2:24 pmLambert-St Louis
$998
Find similar
United Airlines
Dec 2
STL5:30 pmLambert-St Louis
52h 55m
2 stops
BKK11:25 amBangkok Suvarnabhumi
Dec 10
BKK4:55 pmBangkok Suvarnabhumi
30h 12m
3 stops
STL10:07 amLambert-St Louis
$1,015
Find similar
United Airlines
Nov 2
STL5:29 pmLambert-St Louis
52h 56m
2 stops
BKK11:25 amBangkok Suvarnabhumi
Nov 11
BKK4:55 pmBangkok Suvarnabhumi
32h 33m
3 stops
STL12:28 pmLambert-St Louis
$1,016
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momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Bangkok Suvarnabhumi Airport 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 October 2, 2025.
Use the filters below to find and compare flights from Illinois to Bangkok Suvarnabhumi Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Wed 2/18

11:25 am-11:20 pm

1 stop22h 55m

Bangkok Suvarnabhumi

Wed 3/11

12:55 am-9:40 am

1 stop20h 45m

$686

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Mon 2/16

1:30 pm-7:50 am

1 stop29h 20m

Bangkok Suvarnabhumi

Wed 4/15

5:55 pm-7:25 am

1 stop25h 30m

$688

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Mon 10/27

9:20 pm-3:05 pm

1 stop29h 45m

Bangkok Suvarnabhumi

Tue 11/11

5:50 am-6:25 pm

1 stop25h 35m

$692

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Thu 11/27

11:50 am-3:05 pm

1 stop38h 15m

Bangkok Suvarnabhumi

Wed 12/3

11:15 pm-10:05 am

1 stop23h 50m

$701

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Tue 11/25

7:47 am-12:45 am

2 stops27h 58m

Bangkok Suvarnabhumi

Thu 12/4

9:40 am-7:55 pm

2 stops23h 15m

$709

ChicagoBangkok

MDW - BKK

MDWBKK

Chicago Midway

Mon 11/17

6:00 am-11:20 pm

2 stops28h 20m

Bangkok Suvarnabhumi

Wed 12/3

9:30 pm-11:49 pm

2 stops39h 19m

$709

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Thu 11/13

4:14 pm-4:30 pm

2 stops35h 16m

Bangkok Suvarnabhumi

Mon 11/24

1:45 pm-11:54 pm

2 stops23h 09m

$844

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Tue 10/21

3:57 pm-4:40 pm

2 stops36h 43m

Bangkok Suvarnabhumi

Wed 11/12

1:45 pm-3:18 pm

2 stops38h 33m

$850

St. LouisBangkok

STL - BKK

STLBKK

Lambert-St Louis

Wed 1/7

6:00 am-4:25 pm

2 stops45h 25m

Bangkok Suvarnabhumi

Tue 3/3

1:10 am-11:08 pm

2 stops34h 58m

$960

PeoriaBangkok

PIA - BKK

PIABKK

Greater Peoria

Thu 1/8

7:38 am-11:35 pm

2 stops26h 57m

Bangkok Suvarnabhumi

Thu 1/22

8:05 am-4:32 pm

2 stops21h 27m

$1,347

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Illinois to Bangkok Suvarnabhumi Airport

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 Suvarnabhumi Airport?

The month of September is, on average, the cheapest month to fly to Bangkok Suvarnabhumi Airport from Illinois, with most prices found around $854. The month of October is another great option to travel to Bangkok Suvarnabhumi Airport, with average flight prices from Illinois averaging around $861.

What is the cheapest day to depart on your flight to Bangkok Suvarnabhumi Airport?

The cheapest day to depart on your flight to Bangkok Suvarnabhumi Airport is on a Tuesday when prices can be found for as low as $995. This is often the case because there is less demand to fly during this day of the week. On the other hand, Saturday is the most expensive day to depart from Illinois because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,268.

What is the cheapest time of day to depart on your flight to Bangkok Suvarnabhumi Airport?

Our most recent data shows that the best time of day to fly to Bangkok Suvarnabhumi Airport is at noon. Flights from Illinois to Bangkok Suvarnabhumi Airport during this time can be as low as $964. In the evening is when there is more demand to fly to Bangkok Suvarnabhumi Airport, so prices are often more expensive at around $1,146 per ticket.

How far in advance should I book a flight to Bangkok Suvarnabhumi Airport?

You are more likely to see cheaper flights to Bangkok Suvarnabhumi Airport from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Bangkok Suvarnabhumi Airport for around $1,029 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bangkok Suvarnabhumi Airport from Illinois for as low as $859 on momondo.

Can stopping save me money on Illinois to Bangkok Suvarnabhumi Airport flights?

You could potentially save up to 23% on your flight if you consider stops on a Illinois to Bangkok Suvarnabhumi Airport flight.

Cheap Illinois to Bangkok Suvarnabhumi Airport flight deals and tips

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

Direct flights

None
There are no direct flights from Illinois to Bangkok Suvarnabhumi Airport. There are no popular flight routes from Illinois to Bangkok Suvarnabhumi Airport.
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  • When did momondo last update prices for flights from Illinois to Bangkok Suvarnabhumi Airport?

    Prices for flights from Illinois to Bangkok Suvarnabhumi Airport are refreshed on a daily basis.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Bangkok Suvarnabhumi Airport.

  • What documentation or ID do you need to fly to Bangkok Suvarnabhumi Airport?

    The travel and health documents you'll need for your trip to Bangkok Suvarnabhumi Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Bangkok Suvarnabhumi Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Illinois to Bangkok Suvarnabhumi Airport

Compare and see reviews for airlines that fly from Illinois to Bangkok Suvarnabhumi Airport with momondo
Airline
Rating
Free Cancellation
Price
Air IndiaPriceFrom $653Free CancellationRating
5.5
2,935 reviews
Search Air India flights
Cathay PacificPriceFrom $680Free CancellationRating
7.6
1,015 reviews
Search Cathay Pacific flights
ANAPriceFrom $684Free CancellationRating
8.4
979 reviews
Search ANA flights
Korean AirPriceFrom $702Free CancellationRating
8.4
1,145 reviews
Search Korean Air flights
United AirlinesPriceFrom $708Free CancellationRating
7.4
8,933 reviews
Search United Airlines flights
Turkish AirlinesPriceFrom $764Free CancellationRating
7.3
3,983 reviews
Search Turkish Airlines flights
DeltaPriceFrom $808Free CancellationRating
7.9
7,962 reviews
Search Delta flights
Etihad AirwaysPriceFrom $819Free CancellationRating
7.4
1,267 reviews
Search Etihad Airways flights
Japan AirlinesPriceFrom $825Free CancellationRating
8.3
1,574 reviews
Search Japan Airlines flights
Air CanadaPriceFrom $882Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights

Traveling to a place near Bangkok?

Book flights to Bangkok if you plan to visit one of these locations
Pattaya
Ko Samet
Kanchanaburi
Chonburi
Ayutthaya
Cha-am
Ko Lan
Pak Chong
Sattahip
Phetchaburi

Why use momondo?

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

Finding the right flight to Bangkok from Illinois is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Bangkok quick and easy, saving you time and money.

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

Yes. All flights to Bangkok from Illinois on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for Illinois to Bangkok flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Illinois to Bangkok right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Illinois to Bangkok flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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