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$531+ Cheap flights from Suvarnabhumi (BKK) to Illinois

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — ORD
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Suvarnabhumi to Illinois

Cheapest flights from Suvarnabhumi to Illinois
Explore the most affordable flight options available from Suvarnabhumi to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Expedia deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/1611:50 pm
BKK
-
STL
2 stops60h 09m
Multiple Airlines
Fri 3/274:20 pm
STL
-
BKK
2 stops31h 50m
Multiple Airlines
Deal found 1/27$934
This Japan Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2612:25 am
BKK
-
STL
2 stops34h 43m
Japan Airlines
Mon 8/318:00 pm
STL
-
BKK
2 stops45h 50m
Japan Airlines
Deal found 1/26$940
This Trip.com deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/217:35 am
BKK
-
STL
2 stops28h 24m
Multiple Airlines
Wed 5/67:00 am
STL
-
BKK
2 stops29h 10m
Multiple Airlines
Deal found 1/28$1,034
This Air Canada deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/297:05 am
BKK
-
ORD
2 stops33h 53m
Air Canada
Tue 7/143:45 pm
ORD
-
BKK
2 stops49h 20m
Air Canada
Deal found 1/27$1,049
This Kiwi.com deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/165:50 pm
BKK
-
ORD
2 stops22h 59m
Multiple Airlines
Sun 3/292:00 pm
ORD
-
BKK
1 stop21h 50m
Multiple Airlines
Deal found 1/28$1,054
This Air Canada deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/297:05 am
BKK
-
ORD
2 stops33h 53m
Air Canada
Wed 7/159:50 am
ORD
-
BKK
2 stops25h 20m
Air Canada
Deal found 1/27$1,056
This Air Canada deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/297:05 am
BKK
-
ORD
2 stops33h 53m
Air Canada
Mon 7/138:45 am
ORD
-
BKK
2 stops27h 10m
Air Canada
Deal found 1/27$1,057
This Air Canada deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/297:05 am
BKK
-
ORD
2 stops33h 53m
Air Canada
Sun 7/123:40 pm
ORD
-
BKK
2 stops41h 05m
Air Canada
Deal found 1/27$1,058
This United Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/289:35 am
BKK
-
ORD
1 stop35h 05m
United Airlines
Sat 7/185:45 pm
ORD
-
BKK
1 stop22h 50m
United Airlines
Deal found 1/27$1,059
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/79:35 am
BKK
-
ORD
1 stop35h 05m
United Airlines
Sat 7/185:45 pm
ORD
-
BKK
1 stop22h 50m
United Airlines
Deal found 1/28$1,060
This United Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/37:00 am
BKK
-
ORD
1 stop19h 55m
United Airlines
Fri 7/175:45 pm
ORD
-
BKK
1 stop22h 50m
United Airlines
Deal found 1/27$1,061
This China Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/235:30 pm
BKK
-
STL
2 stops39h 35m
Multiple Airlines
Fri 5/18:25 am
STL
-
BKK
2 stops37h 20m
Multiple Airlines
Deal found 1/27$1,061

Find flight deals from Suvarnabhumi to Illinois

Keep the following information in mind while searching for Suvarnabhumi to Illinois flight deals. Data was last updated January 29, 2026.

Round-trip from

$934
(Expedia)

One-way from

$531
(oojo)

Popular in

August

Cheapest in

February

Average price

$1,242
From Bangkok Suvarnabhumi to Illinois
Search Deals
One-way flight from Bangkok Suvarnabhumi to Illinois
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($66 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Suvarnabhumi to Illinois 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, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from Bangkok Suvarnabhumi Airport to Illinois that are best for you.

Fly from

Suvarnabhumi

Fly to

Illinois

Route

Depart

Return

Price

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Tue 4/21

7:35 am-11:59 pm

2 stops28h 24m

Lambert-St Louis

Wed 5/6

7:00 am-12:10 am

2 stops29h 10m

$1,034

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Wed 7/1

9:35 am-8:40 am

1 stop35h 05m

Chicago O'Hare Intl

Tue 7/14

5:45 pm-4:35 am

1 stop22h 50m

$1,059

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Wed 7/1

9:35 am-8:40 am

1 stop35h 05m

Chicago O'Hare Intl

Fri 7/17

5:45 pm-4:35 am

1 stop22h 50m

$1,059

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Wed 7/1

9:35 am-8:40 am

1 stop35h 05m

Chicago O'Hare Intl

Mon 7/13

6:30 am-4:35 am

2 stops34h 05m

$1,059

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Sun 6/28

9:35 am-8:40 am

1 stop35h 05m

Chicago O'Hare Intl

Tue 7/14

5:45 pm-4:35 am

1 stop22h 50m

$1,059

BangkokSt. Louis

BKK - STL

BKKSTL

Bangkok Suvarnabhumi

Thu 4/23

5:30 pm-9:05 pm

2 stops39h 35m

Lambert-St Louis

Fri 5/1

8:25 am-9:45 am

2 stops37h 20m

$1,061

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Sat 4/25

12:40 pm-9:00 pm

1 stop20h 20m

Chicago O'Hare Intl

Tue 4/28

2:00 pm-11:50 pm

1 stop21h 50m

$1,064

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Wed 7/1

9:35 am-11:20 pm

2 stops25h 45m

Chicago O'Hare Intl

Wed 7/15

6:15 pm-9:35 am

2 stops27h 20m

$1,064

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Mon 6/15

9:35 am-11:20 pm

2 stops25h 45m

Chicago O'Hare Intl

Sun 6/28

6:00 am-4:35 am

2 stops34h 35m

$1,065

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Sun 6/14

9:35 am-6:08 am

2 stops32h 33m

Chicago O'Hare Intl

Tue 6/30

5:45 pm-4:35 am

1 stop22h 50m

$1,065

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 59 results
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Best time to book a flight from Suvarnabhumi to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Suvarnabhumi with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Bangkok Suvarnabhumi Airport to Illinois

What is the cheapest month to book a flight from Bangkok Suvarnabhumi Airport to Illinois?

Currently, June is the cheapest month in which you can book a flight from Bangkok Suvarnabhumi Airport to Illinois (average of $735). Flying from Bangkok Suvarnabhumi Airport to Illinois in August is currently the most expensive (average of $1,061). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Bangkok Suvarnabhumi Airport to Illinois?

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated January 29, 2026.
Read through reviews of airlines operating flights from Bangkok Suvarnabhumi Airport to Illinois, such as EVA Air, ANA, and Korean Air. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,334 reviews

Comfort

8.3

Crew

8.6

Boarding

8.4

Entertainment

8.0

Overall

8.4

Food

8.1

Reviews

1 / 20
8.0
Excellent

Jolene,Jan 2026

SGN - TPE

Everything was good. I asked for aisle seating as I must stretch my leg out because of back and pelvis issues. Sometimes I don't always get it. But I did for all 3 of my flights for my destination. It was very nice.
EVA Air
8.4
Very good
1,334 reviews
EVA Air
8.4
Very good
1,334 reviews

Comfort

8.3

Crew

8.6

Boarding

8.4

Entertainment

8.0

Overall

8.4

Food

8.1

Reviews

1 / 20
8.0
Excellent

Jolene,Jan 2026

SGN - TPE

Everything was good. I asked for aisle seating as I must stretch my leg out because of back and pelvis issues. Sometimes I don't always get it. But I did for all 3 of my flights for my destination. It was very nice.
ANA
8.4
Very good
1,078 reviews
EVA Air
8.4
Very good
1,334 reviews

Comfort

8.3

Crew

8.6

Boarding

8.4

Entertainment

8.0

Overall

8.4

Food

8.1

Reviews

1 / 20
8.0
Excellent

Jolene,Jan 2026

SGN - TPE

Everything was good. I asked for aisle seating as I must stretch my leg out because of back and pelvis issues. Sometimes I don't always get it. But I did for all 3 of my flights for my destination. It was very nice.
Korean Air
8.4
Very good
1,188 reviews
EVA Air
8.4
Very good
1,334 reviews

Comfort

8.3

Crew

8.6

Boarding

8.4

Entertainment

8.0

Overall

8.4

Food

8.1

Reviews

1 / 20
8.0
Excellent

Jolene,Jan 2026

SGN - TPE

Everything was good. I asked for aisle seating as I must stretch my leg out because of back and pelvis issues. Sometimes I don't always get it. But I did for all 3 of my flights for my destination. It was very nice.
Japan Airlines
8.3
Very good
1,691 reviews
EVA Air
8.4
Very good
1,334 reviews

Comfort

8.3

Crew

8.6

Boarding

8.4

Entertainment

8.0

Overall

8.4

Food

8.1

Reviews

1 / 20
8.0
Excellent

Jolene,Jan 2026

SGN - TPE

Everything was good. I asked for aisle seating as I must stretch my leg out because of back and pelvis issues. Sometimes I don't always get it. But I did for all 3 of my flights for my destination. It was very nice.
Cathay Pacific
7.6
Good
1,148 reviews
EVA Air
8.4
Very good
1,334 reviews

Comfort

8.3

Crew

8.6

Boarding

8.4

Entertainment

8.0

Overall

8.4

Food

8.1

Reviews

1 / 20
8.0
Excellent

Jolene,Jan 2026

SGN - TPE

Everything was good. I asked for aisle seating as I must stretch my leg out because of back and pelvis issues. Sometimes I don't always get it. But I did for all 3 of my flights for my destination. It was very nice.

Related info for your journey

Find useful and relevant information for your journey from Suvarnabhumi to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Bangkok Suvarnabhumi Airport to Illinois?

    There are many flights that can get you from Bangkok Suvarnabhumi Airport to Illinois in 27h 43m. Fly via United Airlines or Air Canada to get the fastest option. Bangkok Suvarnabhumi Airport and Illinois are separated by a distance of 8737 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Bangkok Suvarnabhumi Airport to Illinois one-way?

    The cheapest airlines for a one-way flight from Bangkok Suvarnabhumi Airport to Illinois are Air Canada ($450), Philippine Airlines ($457), and Korean Air ($467).

  • What are the most popular routes from Bangkok Suvarnabhumi Airport to Illinois?

    When deciding which route to take from Bangkok Suvarnabhumi Airport to Illinois consider Bangkok Suvarnabhumi - Chicago O'Hare Intl, Bangkok Suvarnabhumi - Lambert-St Louis or Bangkok Suvarnabhumi - Chicago Midway as they are the most popular.

  • Can I find deals for flights from Suvarnabhumi to Illinois that include hotel bookings?

    Yes. In addition to deals on Suvarnabhumi to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Suvarnabhumi to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Suvarnabhumi to Illinois.

  • Can I find deals for business class flights from Suvarnabhumi to Illinois?

    Yes. Cheapflights offers flight deals from Suvarnabhumi to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Bangkok Suvarnabhumi Airport to Illinois?

    Currently, June is the cheapest month in which you can book a flight from Bangkok Suvarnabhumi Airport to Illinois (average of $735). Flying from Bangkok Suvarnabhumi Airport to Illinois in August is currently the most expensive (average of $1,061). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Suvarnabhumi to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Suvarnabhumi to Illinois

Discover the top 8 airlines that operate flights from Suvarnabhumi to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest$681Average$1,261FlexibilityNo cancel feeOn-time79%
Korean AirCheapest$902Average$1,040FlexibilityNo cancel feeOn-time81%
ANACheapest$983Average$1,096FlexibilityNo cancel feeOn-time80%
United AirlinesCheapest$1,003Average$1,109FlexibilityNo cancel feeOn-time69%
Cathay PacificCheapest$1,036Average$1,134FlexibilityNo cancel feeOn-time72%
EVA AirCheapest$1,063Average$1,206FlexibilityNo cancel feeOn-time74%
Turkish AirlinesCheapest$1,087Average$1,271FlexibilityNo cancel feeOn-time77%
Thai AirwaysCheapest$1,106Average$1,164FlexibilityNo cancel feeOn-time77%

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