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$492+ 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 4/25. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BKK
Apr 7 — Apr 141
Mon 4/7
Mon 4/14
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 April 2, 2025.

Round-trip from

$846
(oojo)

One-way from

$492
(StudentUniverse)

Popular in

June

Cheapest in

February

Average price

$970
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. 19% potential increase in price ($268 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 April 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 April 2, 2025.

This Gurufare deal was found by Cheapflights users on 3/31. 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.
Tue 9/25:45 pmORD - HKT
2 stops27h 50mMultiple Airlines
Tue 9/95:30 pmHKT - ORD
2 stops27h 10mMultiple Airlines
Deal found 3/31$833
This oojo deal was found by Cheapflights users on 4/1. 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.
Thu 5/81:55 pmORD - HKT
2 stops31h 40mEtihad Airways
Sat 5/172:45 pmHKT - ORD
2 stops54h 00mEtihad Airways
Deal found 4/1$846
This United Airlines deal was found by Cheapflights users on 3/31. 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.
Wed 10/229:45 pmORD - BKK
2 stops38h 10mUnited Airlines
Tue 11/119:25 amBKK - ORD
2 stops42h 12mUnited Airlines
Deal found 3/31$854
This Travelocity deal was found by Cheapflights users on 3/31. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2111:50 amORD - CNX
2 stops32h 40mMultiple Airlines
Tue 5/2010:10 amCNX - ORD
2 stops34h 30mMultiple Airlines
Deal found 3/31$854
This KAYAK deal was found by Cheapflights users on 3/31. 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.
Wed 9/35:45 pmORD - BKK
1 stop33h 45mANA
Tue 9/99:35 pmBKK - ORD
1 stop23h 05mANA
Deal found 3/31$856
This FlightHub deal was found by Cheapflights users on 4/1. 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.
Tue 10/144:00 pmORD - BKK
1 stop35h 25mCathay Pacific
Wed 11/53:05 pmBKK - ORD
1 stop34h 55mCathay Pacific
Deal found 4/1$858
This oojo deal was found by Cheapflights users on 3/31. 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.
Sun 10/2612:05 pmORD - BKK
1 stop23h 15mKorean Air
Wed 10/2911:15 pmBKK - ORD
1 stop22h 15mKorean Air
Deal found 3/31$862
This FlightHub deal was found by Cheapflights users on 3/31. 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.
Fri 10/1012:00 pmORD - BKK
1 stop31h 40mAir India
Fri 10/173:15 pmBKK - ORD
1 stop28h 10mAir India
Deal found 3/31$872
This Delta deal was found by Cheapflights users on 3/31. 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.
Wed 5/77:15 amORD - BKK
2 stops26h 30mDelta
Tue 5/272:35 amBKK - ORD
2 stops33h 24mDelta
Deal found 3/31$876
This Delta deal was found by Cheapflights users on 3/31. 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.
Mon 9/19:30 amMDW - BKK
2 stops27h 35mDelta
Wed 9/172:35 amBKK - MDW
2 stops31h 09mDelta
Deal found 3/31$876
This United deal was found by Cheapflights users on 3/31. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/37:10 amORD - BKK
2 stops28h 45mMultiple Airlines
Mon 5/121:55 pmBKK - ORD
1 stop30h 45mMultiple Airlines
Deal found 3/31$904
This FlightHub deal was found by Cheapflights users on 4/1. 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.
Thu 11/62:40 pmORD - HKT
1 stop31h 40mCathay Pacific
Sat 11/1512:20 pmHKT - ORD
1 stop37h 40mCathay Pacific
Deal found 4/1$908

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 April 2, 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

Thu 5/8

1:55 pm-9:35 am

2 stops31h 40m

Phuket City

Sat 5/17

2:45 pm-8:45 am

2 stops54h 00m

$846

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Mon 4/21

11:50 am-8:30 am

2 stops32h 40m

Chiang Mai

Tue 5/20

10:10 am-8:40 am

2 stops34h 30m

$854

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Sun 4/20

2:20 pm-11:55 pm

2 stops45h 35m

Bangkok Suvarnabhumi

Thu 4/24

9:35 am-8:25 pm

2 stops46h 50m

$856

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Tue 5/6

5:45 pm-6:00 am

1 stop24h 15m

Bangkok Suvarnabhumi

Wed 5/21

1:55 pm-8:40 am

1 stop30h 45m

$857

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Tue 4/29

4:00 pm-2:00 pm

1 stop34h 00m

Bangkok Suvarnabhumi

Wed 6/11

7:00 pm-2:25 pm

1 stop31h 25m

$858

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Wed 5/7

7:15 am-9:45 pm

2 stops26h 30m

Bangkok Suvarnabhumi

Tue 5/27

2:35 am-11:59 pm

2 stops33h 24m

$876

ChicagoBangkok

MDW - BKK

MDWBKK

Chicago Midway

Mon 9/1

9:30 am-1:05 am

2 stops27h 35m

Bangkok Suvarnabhumi

Wed 9/17

2:35 am-9:44 pm

2 stops31h 09m

$876

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Sat 5/3

7:10 am-11:55 pm

2 stops28h 45m

Bangkok Suvarnabhumi

Mon 5/12

1:55 pm-8:40 am

1 stop30h 45m

$904

ChicagoPhuket City

ORD - HKT

ORDHKT

Chicago O'Hare Intl

Mon 4/21

4:00 pm-10:50 am

1 stop30h 50m

Phuket City

Thu 5/1

11:50 am-2:25 pm

1 stop38h 35m

$926

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

Wed 4/30

1:55 pm-6:35 pm

1 stop40h 40m

Bangkok Suvarnabhumi

Wed 5/21

9:05 am-8:45 am

1 stop35h 40m

$944

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

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 $958). Flying from Illinois to Thailand in December is currently the most expensive (average of $1,574). 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 April 2, 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 April 2, 2025.
Read reviews from past customers who have flown EVA Air, Korean Air and Japan Airlines 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
1,170 reviews

Food

8.1

Comfort

8.3

Entertainment

8.0

Overall

8.4

Crew

8.6

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
EVA Air
8.4
Very good
1,170 reviews
EVA Air
8.4
Very good
1,170 reviews

Food

8.1

Comfort

8.3

Entertainment

8.0

Overall

8.4

Crew

8.6

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Korean Air
8.4
Very good
1,051 reviews
EVA Air
8.4
Very good
1,170 reviews

Food

8.1

Comfort

8.3

Entertainment

8.0

Overall

8.4

Crew

8.6

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Japan Airlines
8.3
Very good
1,440 reviews
EVA Air
8.4
Very good
1,170 reviews

Food

8.1

Comfort

8.3

Entertainment

8.0

Overall

8.4

Crew

8.6

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
ANA
8.3
Very good
830 reviews
EVA Air
8.4
Very good
1,170 reviews

Food

8.1

Comfort

8.3

Entertainment

8.0

Overall

8.4

Crew

8.6

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Asiana Airlines
8.2
Very good
440 reviews
EVA Air
8.4
Very good
1,170 reviews

Food

8.1

Comfort

8.3

Entertainment

8.0

Overall

8.4

Crew

8.6

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

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 $500. However, be on the lookout for offers from Etihad Airways and Delta, 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 $958). Flying from Illinois to Thailand in December is currently the most expensive (average of $1,574). 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 April 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
EmiratesCheapest$503Average$1,354FlexibilityNo cancel feeOn-time75%
Air IndiaCheapest$754Average$928FlexibilityNo cancel feeOn-timeN/A
Cathay PacificCheapest$795Average$1,004FlexibilityNo cancel feeOn-time72%
Turkish AirlinesCheapest$805Average$1,033FlexibilityNo cancel feeOn-time77%
Korean AirCheapest$820Average$1,125FlexibilityNo cancel feeOn-time81%
ANACheapest$825Average$1,068FlexibilityNo cancel feeOn-time80%
Etihad AirwaysCheapest$828Average$1,270FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$841Average$980FlexibilityNo cancel feeOn-time69%
Japan AirlinesCheapest$891Average$975FlexibilityNo cancel feeOn-time79%
EVA AirCheapest$925Average$1,265FlexibilityNo cancel feeOn-time74%

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