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$487+ 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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BKK
ene. 26 — feb. 21
dom. 1/26
dom. 2/2
1 adult, Economy
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Cheap flight deals from Illinois to Thailand

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to Thailand (TH0). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated enero 21, 2025.

Round-trip from

$810
(oojo)

One-way from

$487
(Kiwi.com)
From Illinois to Thailand
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One-way flight from Illinois to Thailand
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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 enero 21, 2025.

This oojo deal was found by Cheapflights users on 1/21. 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. 3/1012:00 pmORD - HKT
1 stop32h 05mAir India
lun. 6/96:15 pmHKT - ORD
1 stop25h 10mAir India
Deal found 1/21$810
This flugladen.de deal was found by Cheapflights users on 1/20. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/1912:00 pmORD - BKK
1 stop20h 00mAir India
mié. 3/263:05 pmBKK - ORD
1 stop28h 25mAir India
Deal found 1/20$826
This Gotogate deal was found by Cheapflights users on 1/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/1112:25 pmORD - BKK
1 stop36h 50mKorean Air
mar. 3/189:30 pmBKK - ORD
1 stop24h 10mKorean Air
Deal found 1/20$828
This FlightHub deal was found by Cheapflights users on 1/20. 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.
lun. 1/202:40 pmORD - BKK
1 stop20h 30mCathay Pacific
mar. 1/286:40 amBKK - ORD
1 stop19h 20mCathay Pacific
Deal found 1/20$846
This Justfly.com deal was found by Cheapflights users on 1/20. 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.
mar. 1/214:25 pmORD - BKK
1 stop23h 45mANA
mar. 1/283:15 pmBKK - ORD
1 stop29h 05mANA
Deal found 1/20$849
This United Airlines deal was found by Cheapflights users on 1/20. 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.
jue. 9/412:40 pmORD - BKK
1 stop27h 55mUnited Airlines
lun. 9/89:35 amBKK - ORD
2 stops38h 03mUnited Airlines
Deal found 1/20$851
This United deal was found by Cheapflights users on 1/20. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 1/217:15 amORD - BKK
2 stops27h 50mMultiple Airlines
mar. 1/283:15 pmBKK - ORD
1 stop29h 05mMultiple Airlines
Deal found 1/20$863
This Expedia deal was found by Cheapflights users on 1/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 1/214:25 pmORD - HKT
2 stops28h 10mMultiple Airlines
mar. 1/2810:20 amHKT - ORD
2 stops34h 00mMultiple Airlines
Deal found 1/20$869
This Travelocity deal was found by Cheapflights users on 1/20. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 1/214:25 pmORD - CNX
2 stops32h 20mMultiple Airlines
mar. 1/2812:10 pmCNX - ORD
2 stops32h 10mMultiple Airlines
Deal found 1/20$869
This oojo deal was found by Cheapflights users on 1/20. 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.
lun. 3/311:55 amORD - BKK
1 stop27h 45mTurkish Airlines
lun. 3/176:15 amBKK - ORD
1 stop40h 55mTurkish Airlines
Deal found 1/20$871
This Delta deal was found by Cheapflights users on 1/21. 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.
lun. 3/106:15 amORD - BKK
2 stops30h 30mDelta
mar. 3/251:00 amBKK - ORD
2 stops27h 15mDelta
Deal found 1/21$876
This Delta deal was found by Cheapflights users on 1/20. 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.
mar. 2/256:00 amMDW - BKK
2 stops28h 20mDelta
lun. 3/109:30 pmBKK - MDW
2 stops27h 06mDelta
Deal found 1/20$876

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 enero 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoPhuket City

ORD - HKT

ORDHKT

Chicago O'Hare Intl

lun. 3/10

12:00 pm-8:05 am

1 stop32h 05m

Phuket City

lun. 6/9

6:15 pm-7:25 am

1 stop25h 10m

$810

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

mié. 3/19

12:00 pm-8:00 pm

1 stop20h 00m

Bangkok Suvarnabhumi

mié. 3/26

3:05 pm-7:30 am

1 stop28h 25m

$826

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

mar. 3/11

12:25 pm-1:15 pm

1 stop36h 50m

Bangkok Suvarnabhumi

mar. 3/18

9:30 pm-9:40 am

1 stop24h 10m

$828

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

mar. 2/18

2:40 pm-10:40 am

1 stop31h 00m

Bangkok Suvarnabhumi

lun. 3/10

7:15 pm-2:00 pm

1 stop30h 45m

$830

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

mié. 5/14

7:00 am-4:35 am

3 stops33h 35m

Bangkok Suvarnabhumi

lun. 5/19

9:35 am-8:40 am

1 stop35h 05m

$846

ChicagoPhuket City

ORD - HKT

ORDHKT

Chicago O'Hare Intl

lun. 3/10

5:45 pm-6:55 pm

2 stops37h 10m

Phuket City

lun. 6/9

9:05 am-4:00 pm

2 stops42h 55m

$869

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

lun. 3/3

11:55 am-4:40 am

1 stop27h 45m

Bangkok Suvarnabhumi

lun. 3/17

6:15 am-11:10 am

1 stop40h 55m

$871

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

lun. 3/31

12:45 pm-5:25 am

1 stop28h 40m

Bangkok Suvarnabhumi

lun. 5/12

9:35 am-8:40 am

1 stop35h 05m

$874

ChicagoBangkok

ORD - BKK

ORDBKK

Chicago O'Hare Intl

lun. 3/10

6:15 am-12:45 am

2 stops30h 30m

Bangkok Suvarnabhumi

jue. 3/27

9:40 am-11:53 pm

2 stops26h 13m

$876

ChicagoBangkok

MDW - BKK

MDWBKK

Chicago Midway

mar. 2/25

6:00 am-11:20 pm

2 stops28h 20m

Bangkok Suvarnabhumi

dom. 3/9

11:15 pm-6:02 pm

2 stops30h 47m

$876

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

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, October is the cheapest month in which you can book a flight from Illinois to Thailand (average of $996). Flying from Illinois to Thailand in June is currently the most expensive (average of $1,585). 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 enero 21, 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 enero 21, 2025.
Read reviews from past customers who have flown United Airlines, Korean Air and Cathay Pacific from Illinois to Thailand. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.5
Very good
1,039 reviews

Comfort

8.3

Crew

8.7

Food

8.1

Boarding

8.5

Entertainment

8.2

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Korean Air
8.5
Very good
1,039 reviews
Korean Air
8.5
Very good
1,039 reviews

Comfort

8.3

Crew

8.7

Food

8.1

Boarding

8.5

Entertainment

8.2

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

EVA Air
8.4
Very good
1,253 reviews
Korean Air
8.5
Very good
1,039 reviews

Comfort

8.3

Crew

8.7

Food

8.1

Boarding

8.5

Entertainment

8.2

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

ANA
8.4
Very good
852 reviews
Korean Air
8.5
Very good
1,039 reviews

Comfort

8.3

Crew

8.7

Food

8.1

Boarding

8.5

Entertainment

8.2

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Japan Airlines
8.3
Very good
1,449 reviews
Korean Air
8.5
Very good
1,039 reviews

Comfort

8.3

Crew

8.7

Food

8.1

Boarding

8.5

Entertainment

8.2

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Singapore Airlines
8.1
Very good
1,328 reviews
Korean Air
8.5
Very good
1,039 reviews

Comfort

8.3

Crew

8.7

Food

8.1

Boarding

8.5

Entertainment

8.2

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

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 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, October is the cheapest month in which you can book a flight from Illinois to Thailand (average of $996). Flying from Illinois to Thailand in June is currently the most expensive (average of $1,585). 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.

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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 enero 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
EmiratesCheapest$503Average$1,374FlexibilityNo cancel feeOn-time75%
Cathay PacificCheapest$795Average$1,080FlexibilityNo cancel feeOn-time72%
Air IndiaCheapest$797Average$979FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$811Average$1,054FlexibilityNo cancel feeOn-time77%
Etihad AirwaysCheapest$821Average$1,345FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$841Average$1,008FlexibilityNo cancel feeOn-time69%
ANACheapest$843Average$1,182FlexibilityNo cancel feeOn-time80%
Korean AirCheapest$859Average$1,122FlexibilityNo cancel feeOn-time81%
Japan AirlinesCheapest$892Average$986FlexibilityNo cancel feeOn-time79%
EVA AirCheapest$927Average$1,294FlexibilityNo cancel feeOn-time74%
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