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$497+ 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 3/30. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BKK
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
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 February 20, 2025.

Round-trip from

$724
(oojo)

One-way from

$497
(oojo)

Popular in

December

Cheapest in

October

Average price

$960
From Illinois to Thailand
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One-way flight from Illinois to Thailand
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($51 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($42 potential savings vs. average RT price).
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Average for round-trip flights in February 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 February 20, 2025.

This oojo deal was found by Cheapflights users on 2/20. 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.
Mon 3/311:00 amORD - HKT
1 stop40h 50mAir India
Thu 3/139:10 amHKT - ORD
1 stop34h 20mAir India
Deal found 2/20$728
This oojo deal was found by Cheapflights users on 2/19. 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.
Tue 5/61:55 pmORD - HKT
2 stops34h 15mEtihad Airways
Wed 5/212:50 amHKT - ORD
1 stop42h 05mEtihad Airways
Deal found 2/19$828
This CrystalTravel deal was found by Cheapflights users on 2/19. 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.
Thu 9/114:00 pmORD - HKT
1 stop30h 50mCathay Pacific
Mon 9/296:20 pmHKT - ORD
1 stop32h 05mCathay Pacific
Deal found 2/19$839
This United Airlines deal was found by Cheapflights users on 2/20. 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.
Tue 2/251:10 pmORD - BKK
1 stop27h 00mUnited Airlines
Tue 3/187:10 amBKK - ORD
2 stops26h 50mUnited Airlines
Deal found 2/20$856
This FlightHub deal was found by Cheapflights users on 2/19. 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.
Wed 9/2411:45 pmORD - HKT
1 stop27h 35mTurkish Airlines
Wed 10/810:15 pmHKT - ORD
1 stop23h 25mTurkish Airlines
Deal found 2/19$861
This Gurufare deal was found by Cheapflights users on 2/20. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/272:40 pmORD - BKK
1 stop20h 30mCathay Pacific
Wed 3/266:40 amBKK - ORD
1 stop19h 20mCathay Pacific
Deal found 2/20$865
This StudentUniverse deal was found by Cheapflights users on 2/19. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/79:05 pmORD - BKK
2 stops38h 50mANA
Tue 9/237:00 amBKK - ORD
1 stop19h 55mANA
Deal found 2/19$872
This FlightHub deal was found by Cheapflights users on 2/20. 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.
Mon 8/2511:25 amORD - BKK
1 stop29h 50mTurkish Airlines
Sat 9/206:45 amBKK - ORD
1 stop27h 15mTurkish Airlines
Deal found 2/20$873
This Delta deal was found by Cheapflights users on 2/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/67:00 amORD - BKK
2 stops28h 45mDelta
Tue 3/181:00 amBKK - ORD
2 stops32h 47mDelta
Deal found 2/20$876
This Justfly.com deal was found by Cheapflights users on 2/20. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1312:00 pmORD - BKK
1 stop21h 30mAir India
Wed 4/303:15 pmBKK - ORD
1 stop28h 10mAir India
Deal found 2/20$877
This FlightHub deal was found by Cheapflights users on 2/20. 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.
Tue 3/42:40 pmORD - DMK
1 stop30h 05mCathay Pacific
Tue 3/186:30 pmDMK - ORD
1 stop31h 30mCathay Pacific
Deal found 2/20$878
This FlightHub deal was found by Cheapflights users on 2/19. 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.
Mon 3/314:00 pmORD - CNX
1 stop38h 40mCathay Pacific
Wed 4/167:25 pmCNX - ORD
1 stop31h 00mCathay Pacific
Deal found 2/19$878

Find flights from Illinois to Thailand within your budget

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 February 20, 2025.

Fly from

Illinois

Fly to

Thailand

Route

Depart

Return

Price

ChicagoPhuket City

ORD - HKT

ORDHKT

Chicago O'Hare Intl

Mon 3/3

11:00 am-4:50 pm

1 stop40h 50m

Phuket City

Thu 3/13

9:10 am-7:30 am

1 stop34h 20m

$728

ChicagoPhuket City

ORD - HKT

ORDHKT

Chicago O'Hare Intl

Tue 5/6

1:55 pm-12:15 am

1 stop22h 20m

Phuket City

Thu 5/22

2:45 pm-8:55 am

2 stops30h 10m

$828

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Tue 2/25

1:10 pm-5:10 am

1 stop27h 00m

Bangkok Suvarnabhumi

Tue 3/18

7:10 am-10:00 pm

2 stops26h 50m

$856

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Thu 2/27

2:40 pm-12:10 am

1 stop20h 30m

Bangkok Suvarnabhumi

Wed 3/26

6:40 am-2:00 pm

1 stop19h 20m

$865

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Thu 3/6

7:00 am-12:45 am

2 stops28h 45m

Bangkok Suvarnabhumi

Tue 3/18

1:00 am-9:47 pm

2 stops32h 47m

$876

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Sun 4/13

12:00 pm-9:30 pm

1 stop21h 30m

Bangkok Suvarnabhumi

Wed 4/30

3:15 pm-7:25 am

1 stop28h 10m

$877

ChicagoPhuket City

ORD - HKT

ORDHKT

Chicago O'Hare Intl

Tue 4/1

4:00 pm-10:50 am

1 stop30h 50m

Phuket City

Sun 4/6

6:20 pm-2:25 pm

1 stop32h 05m

$877

ChicagoBangkok

ORD - DMK

ORDDMK

Chicago O'Hare Intl

Tue 3/4

2:40 pm-9:45 am

1 stop30h 05m

Bangkok Don Mueang Intl

Tue 3/18

6:30 pm-2:00 pm

1 stop31h 30m

$878

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Mon 3/31

4:00 pm-6:40 pm

1 stop38h 40m

Chiang Mai

Wed 4/16

7:25 pm-2:25 pm

1 stop31h 00m

$878

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Sun 4/27

5:45 pm-5:25 am

1 stop23h 40m

Bangkok Suvarnabhumi

Sun 5/11

1:55 pm-3:10 pm

1 stop37h 15m

$887

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/18

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.

Travel insights for flights from Illinois to Thailand

Get recent, data-driven insights about flights from Illinois to Thailand including ideal travel times, pricing trends, and more.

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

Currently, February is the cheapest month in which you can book a flight from Illinois to Thailand (average of $976). Flying from Illinois to Thailand in June is currently the most expensive (average of $1,580). 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 February 20, 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.

Rainfall in Thailand by month

Plan your trip to Thailand by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Thailand ranges from 0.4 - 12.6 inches per month. September is typically the wettest month, when rainfall can reach 12.6 in. January is typically the driest time to visit Thailand when rainfall is around 0.4 in.

Temperature in Thailand by month

Plan your trip to Thailand by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Thailand, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 86.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 78.8 F).

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 February 20, 2025.
Read reviews from past customers who have flown EVA Air, Korean Air and ANA from Illinois to Thailand. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,200 reviews

Crew

8.6

Boarding

8.4

Comfort

8.2

Food

8.0

Overall

8.4

Entertainment

8.0

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

EVA Air
8.4
Very good
1,200 reviews
EVA Air
8.4
Very good
1,200 reviews

Crew

8.6

Boarding

8.4

Comfort

8.2

Food

8.0

Overall

8.4

Entertainment

8.0

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

Korean Air
8.4
Very good
1,037 reviews
EVA Air
8.4
Very good
1,200 reviews

Crew

8.6

Boarding

8.4

Comfort

8.2

Food

8.0

Overall

8.4

Entertainment

8.0

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

ANA
8.4
Very good
842 reviews
EVA Air
8.4
Very good
1,200 reviews

Crew

8.6

Boarding

8.4

Comfort

8.2

Food

8.0

Overall

8.4

Entertainment

8.0

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

Japan Airlines
8.3
Very good
1,440 reviews
EVA Air
8.4
Very good
1,200 reviews

Crew

8.6

Boarding

8.4

Comfort

8.2

Food

8.0

Overall

8.4

Entertainment

8.0

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

Asiana Airlines
8.3
Very good
446 reviews
EVA Air
8.4
Very good
1,200 reviews

Crew

8.6

Boarding

8.4

Comfort

8.2

Food

8.0

Overall

8.4

Entertainment

8.0

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

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 Qatar Airways, with whom users have recently found tickets for as low as $497. However, be on the lookout for offers from Turkish Airlines and Air India, 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, February is the cheapest month in which you can book a flight from Illinois to Thailand (average of $976). Flying from Illinois to Thailand in June is currently the most expensive (average of $1,580). 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
EmiratesCheapest$503Average$1,452FlexibilityNo cancel feeOn-time75%
Air IndiaCheapest$795Average$942FlexibilityNo cancel feeOn-timeN/A
Cathay PacificCheapest$795Average$1,005FlexibilityNo cancel feeOn-time72%
Turkish AirlinesCheapest$809Average$1,035FlexibilityNo cancel feeOn-time77%
ANACheapest$839Average$1,171FlexibilityNo cancel feeOn-time80%
United AirlinesCheapest$841Average$1,011FlexibilityNo cancel feeOn-time69%
Etihad AirwaysCheapest$847Average$1,347FlexibilityNo cancel feeOn-time75%
Korean AirCheapest$850Average$1,124FlexibilityNo cancel feeOn-time81%
Japan AirlinesCheapest$891Average$977FlexibilityNo cancel feeOn-time79%
EVA AirCheapest$926Average$1,228FlexibilityNo cancel feeOn-time74%
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