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$590+ 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 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — ORD
Dec 27 — Jan 31
Fri 12/27
Fri 1/3
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 December 22, 2024.

Round-trip from

$941
(Gotogate)

One-way from

$590
(Mytrip)
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 December 22, 2024.

This Ovago deal was found by Cheapflights users on 12/21. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2410:05 pmBKK - STL
2 stops30h 35mJapan Airlines
Tue 6/176:29 amSTL - BKK
2 stops35h 21mJapan Airlines
Deal found 12/21$996
This United Airlines deal was found by Cheapflights users on 12/21. 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.
Tue 12/317:10 amBKK - ORD
2 stops39h 07mUnited Airlines
Sun 1/123:35 pmORD - BKK
2 stops43h 30mUnited Airlines
Deal found 12/21$1,031
This Delta deal was found by Cheapflights users on 12/21. 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.
Wed 12/2512:15 amCNX - ORD
2 stops34h 05mDelta
Tue 1/77:15 amORD - CNX
2 stops41h 50mDelta
Deal found 12/21$1,078
This EVA Air deal was found by Cheapflights users on 12/21. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/232:15 amBKK - ORD
1 stop30h 20mEVA Air
Mon 12/3011:30 pmORD - BKK
1 stop35h 10mEVA Air
Deal found 12/21$1,115
This ANA deal was found by Cheapflights users on 12/21. 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 ANA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/287:10 amBKK - ORD
1 stop19h 40mANA
Tue 1/144:25 pmORD - BKK
1 stop25h 10mANA
Deal found 12/21$1,143
This Delta deal was found by Cheapflights users on 12/21. 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.
Wed 12/251:00 amBKK - ORD
2 stops34h 52mDelta
Tue 1/77:15 amORD - BKK
2 stops27h 05mDelta
Deal found 12/21$1,158
This Cathay Pacific deal was found by Cheapflights users on 12/21. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/266:40 amBKK - ORD
1 stop19h 20mCathay Pacific
Sun 1/122:40 pmORD - BKK
1 stop32h 25mCathay Pacific
Deal found 12/21$1,159
This Lufthansa deal was found by Cheapflights users on 12/21. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2911:30 pmBKK - ORD
1 stop27h 40mMultiple Airlines
Wed 1/157:05 pmORD - BKK
1 stop26h 35mMultiple Airlines
Deal found 12/21$1,180
This KAYAK deal was found by Cheapflights users on 12/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/298:05 amBKK - ORD
2 stops24h 39mJapan Airlines
Fri 1/1010:35 amORD - BKK
2 stops29h 25mJapan Airlines
Deal found 12/21$1,206
This SWISS deal was found by Cheapflights users on 12/21. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/261:10 pmBKK - ORD
1 stop40h 05mSWISS
Mon 1/137:05 pmORD - BKK
1 stop26h 35mSWISS
Deal found 12/21$1,212
This Austrian Airlines deal was found by Cheapflights users on 12/21. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2611:50 pmBKK - ORD
1 stop27h 15mAustrian Airlines
Fri 1/104:20 pmORD - BKK
1 stop34h 10mAustrian Airlines
Deal found 12/21$1,267
This Mytrip deal was found by Cheapflights users on 12/22. 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.
Fri 12/2712:50 pmBKK - ORD
1 stop19h 45mThai Airways
Fri 1/311:30 pmORD - BKK
1 stop22h 05mThai Airways
Deal found 12/22$1,290

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 December 22, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Mon 1/27

11:15 pm-8:40 am

1 stop22h 25m

Chicago O'Hare Intl

Sun 2/9

11:25 am-11:20 pm

1 stop22h 55m

$941

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Sun 3/23

1:00 am-11:53 pm

2 stops34h 53m

Chicago O'Hare Intl

Tue 4/22

7:35 pm-9:45 pm

2 stops38h 10m

$977

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Thu 1/30

3:20 am-2:39 pm

2 stops48h 19m

Chicago O'Hare Intl

Mon 3/31

3:40 pm-5:15 am

1 stop25h 35m

$983

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Tue 2/4

7:10 am-7:31 pm

2 stops25h 21m

Chicago O'Hare Intl

Tue 2/11

7:15 am-12:05 am

2 stops27h 50m

$987

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Sat 3/1

3:05 pm-1:00 pm

1 stop34h 55m

Chicago O'Hare Intl

Sat 3/8

2:40 pm-12:10 am

1 stop20h 30m

$994

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Thu 6/19

9:45 am-12:16 am

2 stops26h 31m

Chicago O'Hare Intl

Mon 6/23

6:00 am-5:50 am

2 stops35h 50m

$1,005

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Tue 2/4

7:10 am-6:55 pm

2 stops24h 45m

Chicago O'Hare Intl

Tue 2/11

4:25 pm-6:35 am

1 stop25h 10m

$1,007

BangkokChicago

DMK - ORD

DMKORD

Bangkok Don Mueang Intl

Thu 3/20

10:50 am-2:00 pm

1 stop39h 10m

Chicago O'Hare Intl

Thu 3/27

3:40 pm-5:45 pm

1 stop38h 05m

$1,009

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Tue 5/6

11:35 am-9:00 pm

1 stop21h 25m

Chicago O'Hare Intl

Mon 7/14

12:30 am-10:25 am

1 stop21h 55m

$1,019

BangkokChicago

BKK - ORD

BKKORD

Bangkok Suvarnabhumi

Sat 5/17

4:45 pm-9:00 pm

1 stop40h 15m

Chicago O'Hare Intl

Mon 6/16

12:30 am-11:30 pm

1 stop35h 00m

$1,031

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 60 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 $317). 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 December 22, 2024.

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 December 22, 2024.
Read reviews from past customers who have flown Korean Air, Japan Airlines 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.
EVA Air
8.4
Very good
1,265 reviews

Food

8.0

Entertainment

8.0

Overall

8.4

Boarding

8.4

Comfort

8.3

Crew

8.6

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

EVA Air
8.4
Very good
1,265 reviews
EVA Air
8.4
Very good
1,265 reviews

Food

8.0

Entertainment

8.0

Overall

8.4

Boarding

8.4

Comfort

8.3

Crew

8.6

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

Korean Air
8.4
Very good
1,025 reviews
EVA Air
8.4
Very good
1,265 reviews

Food

8.0

Entertainment

8.0

Overall

8.4

Boarding

8.4

Comfort

8.3

Crew

8.6

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

ANA
8.4
Very good
844 reviews
EVA Air
8.4
Very good
1,265 reviews

Food

8.0

Entertainment

8.0

Overall

8.4

Boarding

8.4

Comfort

8.3

Crew

8.6

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

Japan Airlines
8.3
Very good
1,440 reviews
EVA Air
8.4
Very good
1,265 reviews

Food

8.0

Entertainment

8.0

Overall

8.4

Boarding

8.4

Comfort

8.3

Crew

8.6

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

Asiana Airlines
8.3
Very good
474 reviews
EVA Air
8.4
Very good
1,265 reviews

Food

8.0

Entertainment

8.0

Overall

8.4

Boarding

8.4

Comfort

8.3

Crew

8.6

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

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 ($590), Delta ($604), and Korean Air ($617).

  • 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 $317). 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 December 22, 2024.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$859Average$989FlexibilityNo cancel feeOn-time72%
Korean AirCheapest$915Average$1,085FlexibilityNo cancel feeOn-time81%
ANACheapest$929Average$1,073FlexibilityNo cancel feeOn-time80%
EVA AirCheapest$940Average$1,102FlexibilityNo cancel feeOn-time74%
United AirlinesCheapest$946Average$1,055FlexibilityNo cancel feeOn-time69%
Japan AirlinesCheapest$954Average$1,046FlexibilityNo cancel feeOn-time79%
American AirlinesCheapest$966Average$1,106FlexibilityNo cancel feeOn-time71%
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