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$482+ Cheap flights from Thailand 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 3/13. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — ORD
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Thailand to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from Thailand (TH0) to Illinois (USIL). 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 January 21, 2025.

Round-trip from

$912
(Gotogate)

One-way from

$482
(Kiwi.com)
From Thailand to Illinois
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One-way flight from Thailand to Illinois
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Find flight deals from Thailand to Illinois

Cheapest flights from Thailand to Illinois
Explore the most affordable flight options available from Thailand to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This StudentUniverse 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/209:30 pmBKK - ORD
1 stop24h 10mKorean Air
Thu 3/2712:25 pmORD - BKK
1 stop24h 20mKorean Air
Deal found 1/20$941
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/1112:15 amCNX - ORD
1 stop21h 25mKorean Air
Sat 3/111:25 amORD - CNX
1 stop37h 40mKorean Air
Deal found 1/21$941
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.
Wed 3/191:00 amBKK - MDW
2 stops33h 23mDelta
Wed 3/2612:51 pmMDW - BKK
2 stops36h 24mDelta
Deal found 1/20$953
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.
Wed 4/29:50 amBKK - ORD
2 stops26h 03mDelta
Sun 4/279:26 amORD - BKK
2 stops26h 09mDelta
Deal found 1/20$958
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/97:00 amBKK - ORD
1 stop19h 55mUnited Airlines
Mon 10/135:45 pmORD - BKK
1 stop22h 50mUnited Airlines
Deal found 1/21$980
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/46:40 amBKK - ORD
1 stop19h 20mCathay Pacific
Thu 3/273:40 pmORD - BKK
1 stop20h 30mCathay Pacific
Deal found 1/21$1,007
This Gurufare 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/109:35 pmBKK - ORD
1 stop29h 45mANA
Thu 7/245:45 pmORD - BKK
1 stop22h 50mANA
Deal found 1/21$1,018
This Justfly.com 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/81:35 amBKK - ORD
1 stop31h 10mEVA Air
Sun 10/1212:30 amORD - BKK
1 stop21h 55mEVA Air
Deal found 1/21$1,025
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/109:20 amDMK - ORD
2 stops23h 40mMultiple Airlines
Tue 6/2412:30 amORD - DMK
2 stops51h 40mMultiple Airlines
Deal found 1/21$1,028
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/2012:15 pmBKK - ORD
2 stops29h 31mMultiple Airlines
Thu 3/272:10 pmORD - BKK
3 stops33h 10mMultiple Airlines
Deal found 1/20$1,038
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/206:30 pmDMK - ORD
1 stop31h 30mCathay Pacific
Thu 3/273:40 pmORD - DMK
1 stop38h 05mCathay Pacific
Deal found 1/21$1,038
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.
Mon 4/711:15 pmCNX - ORD
2 stops36h 44mDelta
Wed 4/2312:20 pmORD - CNX
1 stop21h 35mDelta
Deal found 1/20$1,054

Find flights from Thailand to Illinois within your budget

Customize your flight search to find flights from Thailand 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 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Thu 3/20

9:30 pm-9:40 am

1 stop24h 10m

Chicago O'Hare Intl

Thu 3/27

12:25 pm-12:45 am

1 stop24h 20m

$941

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Tue 2/11

12:15 am-8:40 am

1 stop21h 25m

Chicago O'Hare Intl

Sat 3/1

11:25 am-2:05 pm

1 stop37h 40m

$941

BangkokChicago

BKK - MDW

BKKMDW

Bangkok Suvarnabhumi

Wed 3/19

1:00 am-10:23 pm

2 stops33h 23m

Chicago Midway

Wed 3/26

12:51 pm-1:15 pm

2 stops36h 24m

$953

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Wed 4/2

9:50 am-11:53 pm

2 stops26h 03m

Chicago O'Hare Intl

Mon 4/28

6:40 am-9:45 pm

2 stops27h 05m

$958

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Tue 6/17

9:35 am-8:40 am

1 stop35h 05m

Chicago O'Hare Intl

Mon 6/30

5:45 pm-4:35 am

1 stop22h 50m

$987

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Tue 3/4

6:40 am-1:00 pm

1 stop19h 20m

Chicago O'Hare Intl

Thu 3/27

3:40 pm-12:10 am

1 stop20h 30m

$1,007

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Thu 7/10

9:35 pm-3:20 pm

1 stop29h 45m

Chicago O'Hare Intl

Thu 7/24

5:45 pm-4:35 am

1 stop22h 50m

$1,018

BangkokChicago

DMK - ORD

DMKORD

Bangkok Don Mueang Intl

Tue 6/10

9:20 am-9:00 pm

2 stops23h 40m

Chicago O'Hare Intl

Tue 6/24

12:30 am-4:10 pm

2 stops51h 40m

$1,028

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Thu 3/20

12:15 pm-5:46 am

2 stops29h 31m

Chicago O'Hare Intl

Thu 3/27

2:10 pm-11:20 am

3 stops33h 10m

$1,038

BangkokChicago

DMK - ORD

DMKORD

Bangkok Don Mueang Intl

Thu 3/20

6:30 pm-2:00 pm

1 stop31h 30m

Chicago O'Hare Intl

Thu 3/27

3:40 pm-5:45 pm

1 stop38h 05m

$1,038

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 58 results
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Best time to book a flight from Thailand to Illinois

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

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

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

Currently, August is the cheapest month in which you can book a flight from Thailand to Illinois (average of $245). Flying from Thailand to Illinois in March is currently the most expensive (average of $320). 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 TH to IL?

Find hourly flight availability from Thailand to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2025.

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

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 21, 2025.
Read reviews from past customers who have flown Turkish Airlines, Delta and EVA Air from Thailand to Illinois. 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

Food

8.1

Crew

8.7

Entertainment

8.2

Overall

8.5

Boarding

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

Food

8.1

Crew

8.7

Entertainment

8.2

Overall

8.5

Boarding

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
1,255 reviews
Korean Air
8.5
Very good
1,039 reviews

Comfort

8.3

Food

8.1

Crew

8.7

Entertainment

8.2

Overall

8.5

Boarding

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

Food

8.1

Crew

8.7

Entertainment

8.2

Overall

8.5

Boarding

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

Food

8.1

Crew

8.7

Entertainment

8.2

Overall

8.5

Boarding

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.

Asiana Airlines
8.3
Very good
466 reviews
Korean Air
8.5
Very good
1,039 reviews

Comfort

8.3

Food

8.1

Crew

8.7

Entertainment

8.2

Overall

8.5

Boarding

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 Thailand to Illinois. 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 Thailand to Illinois one-way?

    The cheapest airlines for a one-way flight from Thailand to Illinois are Thai Airways ($583), Korean Air ($606), and Air Canada ($608).

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Thailand to Illinois (average of $245). Flying from Thailand to Illinois in March is currently the most expensive (average of $320). 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 Thailand to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Thailand to Illinois

Discover the top 7 airlines that operate flights from Thailand 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 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$859Average$995FlexibilityNo cancel feeOn-time72%
ANACheapest$902Average$1,068FlexibilityNo cancel feeOn-time80%
Korean AirCheapest$915Average$1,083FlexibilityNo cancel feeOn-time81%
Japan AirlinesCheapest$939Average$1,029FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$939Average$1,047FlexibilityNo cancel feeOn-time69%
EVA AirCheapest$940Average$1,078FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$956Average$1,120FlexibilityNo cancel feeOn-time71%
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