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$611+ Cheap flights from Chiang Mai (CNX) 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 11/1. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — ORD
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Chiang Mai to Illinois

Keep the following information in mind while searching for Chiang Mai to Illinois flight deals. Data was last updated August 14, 2025.

Round-trip from

$984
(Expedia)

One-way from

$611
(Kiwi.com)
From Chiang Mai to Illinois
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One-way flight from Chiang Mai to Illinois
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Find flight deals from Chiang Mai to Illinois

Cheapest flights from Chiang Mai to Illinois
Explore the most affordable flight options available from Chiang Mai to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This Expedia deal was found by Cheapflights users on 8/13. 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.
Wed 9/311:15 pmCNX - ORD
1 stop22h 15mKorean Air
Mon 9/2212:10 pmORD - CNX
1 stop21h 45mKorean Air
Deal found 8/13$984
This Korean Air deal was found by Cheapflights users on 8/14. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1412:15 amCNX - ORD
1 stop21h 15mKorean Air
Thu 1/1511:25 amORD - CNX
1 stop22h 40mKorean Air
Deal found 8/14$1,025
This TeaFlight deal was found by Cheapflights users on 8/13. 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 TeaFlight is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/311:15 pmCNX - ORD
1 stop22h 15mKorean Air
Thu 9/2512:10 pmORD - CNX
1 stop21h 45mKorean Air
Deal found 8/13$1,026
This Delta deal was found by Cheapflights users on 8/13. 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 9/111:15 pmCNX - ORD
2 stops36h 36mDelta
Mon 9/227:10 amORD - CNX
2 stops26h 45mDelta
Deal found 8/13$1,029
This oojo deal was found by Cheapflights users on 8/14. 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 12/1511:50 amCNX - ORD
1 stop20h 45mEVA Air
Thu 1/1511:30 pmORD - CNX
1 stop22h 05mEVA Air
Deal found 8/14$1,054
This Trip.com deal was found by Cheapflights users on 8/13. 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.
Sat 9/612:45 amCNX - ORD
2 stops33h 58mMultiple Airlines
Fri 9/266:30 amORD - CNX
2 stops53h 10mMultiple Airlines
Deal found 8/13$1,073
This TeaFlight deal was found by Cheapflights users on 8/13. 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 TeaFlight is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/311:35 amCNX - ORD
1 stop21h 10mEVA Air
Sun 9/2812:30 amORD - CNX
1 stop21h 55mEVA Air
Deal found 8/13$1,088
This TeaFlight deal was found by Cheapflights users on 8/13. 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 TeaFlight is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/311:35 amCNX - ORD
1 stop21h 10mEVA Air
Thu 9/2512:30 amORD - CNX
1 stop21h 55mEVA Air
Deal found 8/13$1,089
This Delta deal was found by Cheapflights users on 8/13. 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 9/311:15 pmCNX - ORD
2 stops28h 58mDelta
Thu 9/258:52 amORD - CNX
2 stops25h 03mDelta
Deal found 8/13$1,106
This Expedia deal was found by Cheapflights users on 8/13. 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.
Thu 9/411:35 amCNX - ORD
2 stops31h 28mMultiple Airlines
Thu 9/2512:30 amORD - CNX
1 stop21h 55mMultiple Airlines
Deal found 8/13$1,117
This oojo deal was found by Cheapflights users on 8/14. 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.
Wed 10/111:35 amCNX - ORD
1 stop21h 10mEVA Air
Tue 10/2812:30 amORD - CNX
1 stop22h 05mEVA Air
Deal found 8/14$1,124
This Korean Air deal was found by Cheapflights users on 8/13. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/411:15 pmCNX - MDW
2 stops25h 13mKorean Air
Fri 10/319:35 amMDW - CNX
2 stops25h 30mKorean Air
Deal found 8/13$1,784

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chiang Mai 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 August 14, 2025.
Use the filters below to find and compare flights from Chiang Mai to Illinois that are best for you.

Fly from

Chiang Mai

Fly to

Illinois

Route

Depart

Return

Price

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Wed 9/3

11:15 pm-9:30 am

1 stop22h 15m

Chicago O'Hare Intl

Mon 9/22

12:10 pm-9:55 pm

1 stop21h 45m

$984

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Sun 12/14

12:15 am-8:30 am

1 stop21h 15m

Chicago O'Hare Intl

Thu 1/15

11:25 am-11:05 pm

1 stop22h 40m

$1,025

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Wed 9/3

11:15 pm-9:30 am

1 stop22h 15m

Chicago O'Hare Intl

Thu 9/25

12:10 pm-9:55 pm

1 stop21h 45m

$1,026

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Wed 9/10

11:15 pm-9:30 am

1 stop22h 15m

Chicago O'Hare Intl

Thu 9/25

12:10 pm-9:55 pm

1 stop21h 45m

$1,026

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Wed 9/3

11:15 pm-11:51 pm

2 stops36h 36m

Chicago O'Hare Intl

Mon 9/22

9:10 am-9:55 pm

2 stops24h 45m

$1,029

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Mon 9/1

11:15 pm-11:51 pm

2 stops36h 36m

Chicago O'Hare Intl

Mon 9/22

7:10 am-9:55 pm

2 stops26h 45m

$1,029

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Sat 9/6

11:15 pm-12:45 pm

2 stops25h 30m

Chicago O'Hare Intl

Mon 9/22

7:10 am-9:55 pm

2 stops26h 45m

$1,029

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Mon 12/15

11:50 am-7:35 pm

1 stop20h 45m

Chicago O'Hare Intl

Thu 1/15

11:30 pm-10:35 am

1 stop22h 05m

$1,054

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Sat 9/6

12:45 am-10:43 pm

2 stops33h 58m

Chicago O'Hare Intl

Fri 9/26

6:30 am-11:40 pm

2 stops53h 10m

$1,073

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Wed 9/3

11:35 am-8:45 pm

1 stop21h 10m

Chicago O'Hare Intl

Sun 9/28

12:30 am-10:25 am

1 stop21h 55m

$1,088

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 25 results
1
2
3

Best time to book a flight from Chiang Mai to Illinois

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

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

Currently, August is the cheapest month in which you can book a flight from Chiang Mai to Illinois (average of $245). Flying from Chiang Mai to Illinois in March is currently the most expensive (average of $321). 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.

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 August 14, 2025.
Get a feel of what it's like to fly with EVA Air from Chiang Mai to Illinois by reading reviews from past customers. 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
1,233 reviews

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Food

8.1

Overall

8.4

Crew

8.6

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
EVA Air
8.4
Very good
1,233 reviews
EVA Air
8.4
Very good
1,233 reviews

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Food

8.1

Overall

8.4

Crew

8.6

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak

Related info for your journey

Find useful and relevant information for your journey from Chiang Mai to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Chiang Mai to Illinois?

    Chiang Mai (CNX) is the airport you will fly out of if you book a flight from Chiang Mai to Illinois. It is only a 1.9 mi journey to Chiang Mai (CNX) from Chiang Mai’s city center.

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

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

  • How can I find direct flights from Chiang Mai to Illinois?

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

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

    Yes. Cheapflights offers flight deals from Chiang Mai 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 Chiang Mai to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Chiang Mai to Illinois (average of $245). Flying from Chiang Mai to Illinois in March is currently the most expensive (average of $321). 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 Chiang Mai to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Chiang Mai to Illinois

Discover the top airline that operate flights from Chiang Mai 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
EVA AirCheapest$1,014Average$1,145FlexibilityNo cancel feeOn-time74%

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