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$359+ Cheap flights from Illinois to Thailand

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 8/29. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BKK
jul. 8 — jul. 151
mar. 7/8
mar. 7/15
1 adult, Economy
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Cheap flight deals from Illinois to Thailand

Keep the following information in mind while searching for Illinois to Thailand flight deals. Data was last updated julio 3, 2025.

Round-trip from

$657
(oojo)

One-way from

$359
(oojo)

Popular in

December

Cheapest in

September

Average price

$1,276
From Illinois to Thailand
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One-way flight from Illinois to Thailand
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Highest demand for flights based on searches. 5% potential increase in price ($60 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Illinois to Thailand

Cheapest flights from Illinois to Thailand
Explore the most affordable flight options available from Illinois to Thailand. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 3, 2025.

This oojo deal was found by Cheapflights users on 7/1. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/112:00 pmORD - HKT
1 stop32h 10mAir India
dom. 9/79:05 amHKT - ORD
1 stop34h 20mAir India
Deal found 7/1$657
This CrystalTravel deal was found by Cheapflights users on 7/1. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/15:45 pmORD - HKT
2 stops27h 50mMultiple Airlines
dom. 9/74:05 pmHKT - ORD
2 stops28h 35mMultiple Airlines
Deal found 7/1$671
This FlightHub deal was found by Cheapflights users on 7/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/205:45 pmORD - CNX
2 stops27h 35mMultiple Airlines
lun. 11/37:45 pmCNX - ORD
2 stops24h 35mMultiple Airlines
Deal found 7/1$696
This Ovago deal was found by Cheapflights users on 7/2. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/284:00 pmORD - HKT
1 stop30h 50mCathay Pacific
mié. 9/36:20 pmHKT - ORD
1 stop32h 05mCathay Pacific
Deal found 7/2$712
This Ovago deal was found by Cheapflights users on 7/3. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/411:05 amORD - BKK
1 stop24h 40mKorean Air
mar. 12/231:00 amBKK - ORD
2 stops25h 04mKorean Air
Deal found 7/3$833
This United Airlines deal was found by Cheapflights users on 7/3. 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.
vie. 7/49:05 amORD - BKK
2 stops31h 30mUnited Airlines
vie. 7/119:35 amBKK - ORD
2 stops25h 58mUnited Airlines
Deal found 7/3$837
This Cathay Pacific deal was found by Cheapflights users on 7/3. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/194:00 pmORD - BKK
1 stop19h 50mCathay Pacific
jue. 10/27:00 pmBKK - ORD
1 stop31h 25mCathay Pacific
Deal found 7/3$838
This KAYAK deal was found by Cheapflights users on 7/3. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/55:45 pmORD - BKK
1 stop22h 50mANA
dom. 10/127:00 amBKK - ORD
1 stop19h 55mANA
Deal found 7/3$839
This oojo deal was found by Cheapflights users on 7/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/181:55 pmORD - BKK
1 stop22h 00mEtihad Airways
dom. 8/312:55 amBKK - ORD
1 stop41h 50mEtihad Airways
Deal found 7/3$842
This Turkish Airlines deal was found by Cheapflights users on 7/1. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/307:50 pmORD - BKK
1 stop21h 25mTurkish Airlines
vie. 8/810:45 pmBKK - ORD
1 stop22h 55mTurkish Airlines
Deal found 7/1$853
This iWofly deal was found by Cheapflights users on 7/3. 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 iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/149:31 amMDW - BKK
2 stops24h 14mKorean Air
mar. 10/281:00 amBKK - MDW
2 stops23h 32mKorean Air
Deal found 7/3$857
This Trip.com deal was found by Cheapflights users on 7/1. 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.
mar. 8/1912:30 pmORD - HKT
1 stop21h 40mKorean Air
mar. 8/2611:25 pmHKT - ORD
1 stop22h 15mKorean Air
Deal found 7/1$866

Cheapflights Fare Finder

Customize your flight search to find flights from Illinois to Thailand 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 julio 3, 2025.
Use the filters below to find and compare flights from Illinois to Thailand that are best for you.

Fly from

Illinois

Fly to

Thailand

Route

Depart

Return

Price

ChicagoPhuket City

ORD - HKT

ORDHKT

Chicago O'Hare Intl

lun. 9/1

12:00 pm-8:10 am

1 stop32h 10m

Phuket City

dom. 9/7

9:05 am-7:25 am

1 stop34h 20m

$657

ChicagoPhuket City

ORD - HKT

ORDHKT

Chicago O'Hare Intl

lun. 9/1

5:45 pm-9:35 am

2 stops27h 50m

Phuket City

dom. 9/7

4:05 pm-8:40 am

2 stops28h 35m

$671

ChicagoPhuket City

ORD - HKT

ORDHKT

Chicago O'Hare Intl

jue. 8/28

4:00 pm-10:50 am

1 stop30h 50m

Phuket City

mié. 9/3

6:20 pm-2:25 pm

1 stop32h 05m

$712

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

lun. 9/1

5:45 pm-11:15 am

2 stops29h 30m

Chiang Mai

lun. 9/29

9:10 pm-2:55 pm

2 stops29h 45m

$734

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

vie. 9/19

4:00 pm-11:50 pm

1 stop19h 50m

Bangkok Suvarnabhumi

jue. 10/2

7:00 pm-2:25 pm

1 stop31h 25m

$838

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

dom. 10/5

5:45 pm-4:35 am

1 stop22h 50m

Bangkok Suvarnabhumi

dom. 10/12

7:00 am-2:55 pm

1 stop19h 55m

$839

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

sáb. 7/19

9:31 pm-4:35 am

2 stops43h 04m

Bangkok Suvarnabhumi

sáb. 9/27

7:00 am-7:58 pm

2 stops24h 58m

$840

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

lun. 8/18

1:55 pm-11:55 pm

1 stop22h 00m

Bangkok Suvarnabhumi

sáb. 9/6

2:55 am-8:45 am

1 stop41h 50m

$842

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

mié. 11/5

11:05 am-12:45 am

1 stop24h 40m

Bangkok Suvarnabhumi

jue. 11/20

1:00 am-8:30 am

1 stop20h 30m

$843

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

mié. 7/30

7:50 pm-5:15 am

1 stop21h 25m

Bangkok Suvarnabhumi

jue. 8/7

6:45 am-9:40 am

1 stop38h 55m

$853

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 60 results
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Best time to book a flight from Illinois to Thailand

Have a flexible travel schedule? Discover the best time to fly to Thailand from Illinois 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 Illinois to Thailand

What is the cheapest month to book a flight from Illinois to Thailand?

Currently, March is the cheapest month in which you can book a flight from Illinois to Thailand (average of $952). Flying from Illinois to Thailand in December is currently the most expensive (average of $1,573). 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.

What is the cheapest time of day to fly from IL to TH?

Find hourly flight availability from Illinois to Thailand. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 3, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Thailand as you normally would.

Reviews of airlines servicing Thailand

Get insights into the airlines that provide service to Thailand. 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 Thailand. Reviews last updated julio 3, 2025.
Read through reviews of airlines operating flights from Illinois to Thailand, such as EVA Air, Korean Air, and ANA. 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
1,215 reviews

Overall

8.4

Crew

8.6

Entertainment

8.0

Boarding

8.4

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very good
1,215 reviews
EVA Air
8.4
Very good
1,215 reviews

Overall

8.4

Crew

8.6

Entertainment

8.0

Boarding

8.4

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Korean Air
8.4
Very good
1,101 reviews
EVA Air
8.4
Very good
1,215 reviews

Overall

8.4

Crew

8.6

Entertainment

8.0

Boarding

8.4

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
ANA
8.4
Very good
893 reviews
EVA Air
8.4
Very good
1,215 reviews

Overall

8.4

Crew

8.6

Entertainment

8.0

Boarding

8.4

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Japan Airlines
8.3
Very good
1,505 reviews
EVA Air
8.4
Very good
1,215 reviews

Overall

8.4

Crew

8.6

Entertainment

8.0

Boarding

8.4

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
China Airlines
8.3
Very good
744 reviews
EVA Air
8.4
Very good
1,215 reviews

Overall

8.4

Crew

8.6

Entertainment

8.0

Boarding

8.4

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Related info for your journey

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

  • What are the cheapest airlines to fly from Illinois to Thailand one-way?

    The cheapest airline one-way is Air India, with whom users have recently found tickets for as low as $359. However, be on the lookout for offers from Cathay Pacific and Korean Air, as they are both options that can get you from Illinois to Thailand for a low price.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois to Thailand 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 Illinois to Thailand?

    Currently, March is the cheapest month in which you can book a flight from Illinois to Thailand (average of $952). Flying from Illinois to Thailand in December is currently the most expensive (average of $1,573). 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 Illinois to Thailand

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Illinois to Thailand

Discover the top 10 airlines that operate flights from Illinois to Thailand. 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 julio 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
EmiratesCheapest$503Average$1,442FlexibilityNo cancel feeOn-time75%
Japan AirlinesCheapest$707Average$987FlexibilityNo cancel feeOn-time79%
Air IndiaCheapest$728Average$938FlexibilityNo cancel feeOn-timeN/A
ANACheapest$767Average$1,002FlexibilityNo cancel feeOn-time80%
Korean AirCheapest$770Average$1,109FlexibilityNo cancel feeOn-time81%
Cathay PacificCheapest$795Average$1,079FlexibilityNo cancel feeOn-time72%
Turkish AirlinesCheapest$799Average$1,042FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$823Average$970FlexibilityNo cancel feeOn-time69%
Etihad AirwaysCheapest$825Average$1,196FlexibilityNo cancel feeOn-time75%
IndiGoCheapest$893Average$1,260FlexibilityNo cancel feeOn-time80%

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