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Chiang Mai

$529+ Cheap flights from Illinois to Chiang Mai (CNX)

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 5/25. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CNX
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheap flight deals from Illinois to Chiang Mai

Keep the following information in mind while searching for Illinois to Chiang Mai flight deals. Data was last updated May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$977
(Delta)

One-way from

$565
(Kiwi.com)

Popular in

May

Cheapest in

April

Average price

$1,897
Provider with most accurate pricing for Chicago (CHI)-Chiang Mai flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Chiang Mai flights.
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From Illinois to Chiang Mai
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One-way flight from Illinois to Chiang Mai
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Highest demand for flights based on searches. 12% potential increase in price ($186 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($50 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Find flight deals from Illinois to Chiang Mai

Cheapest flights from Illinois to Chiang Mai
Explore the most affordable flight options available from Illinois to Chiang Mai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

This FlightHub deal was found by Cheapflights users on 4/30. 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.
Mon 9/14:00 pmORD - CNX
1 stop29h 45mCathay Pacific
Mon 9/810:30 amCNX - ORD
1 stop39h 55mCathay Pacific
Deal found 4/30$858
This Travelocity deal was found by Cheapflights users on 4/30. 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.
Fri 9/55:45 pmORD - CNX
2 stops27h 35mMultiple Airlines
Fri 9/128:00 pmCNX - ORD
2 stops30h 55mMultiple Airlines
Deal found 4/30$887
This oojo deal was found by Cheapflights users on 5/1. 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.
Wed 9/2412:10 pmORD - CNX
1 stop21h 45mKorean Air
Mon 3/212:15 amCNX - ORD
1 stop21h 25mKorean Air
Deal found 5/1$948
This oojo deal was found by Cheapflights users on 4/30. 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.
Tue 11/1111:30 pmORD - CNX
1 stop22h 05mEVA Air
Tue 11/2511:50 amCNX - ORD
1 stop20h 45mEVA Air
Deal found 4/30$972
This Delta deal was found by Cheapflights users on 4/30. 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.
Thu 5/89:00 amORD - CNX
2 stops24h 55mDelta
Tue 5/1311:15 pmCNX - ORD
2 stops34h 05mDelta
Deal found 4/30$977
This Delta deal was found by Cheapflights users on 5/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/246:00 amMDW - CNX
2 stops27h 55mDelta
Mon 3/212:15 amCNX - MDW
2 stops24h 46mDelta
Deal found 5/1$1,123
This oojo deal was found by Cheapflights users on 4/30. 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 5/126:58 pmORD - CNX
2 stops27h 22mChina Airlines
Wed 7/3011:20 amCNX - ORD
2 stops42h 58mChina Airlines
Deal found 4/30$1,531
This Korean Air deal was found by Cheapflights users on 4/30. 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.
Tue 6/109:21 amMDW - CNX
2 stops24h 34mMultiple Airlines
Tue 6/1711:15 pmCNX - MDW
2 stops25h 14mMultiple Airlines
Deal found 4/30$1,755
This Korean Air deal was found by Cheapflights users on 5/1. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/19:20 amMDW - CNX
2 stops24h 35mKorean Air
Mon 6/1611:15 pmCNX - MDW
2 stops25h 14mKorean Air
Deal found 5/1$7,752

Cheapflights Fare Finder

Customize your flight search to find flights from Illinois to Chiang Mai 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 May 1, 2025.
Use the filters below to find and compare flights from Illinois to Chiang Mai that are best for you.

Fly from

Illinois

Fly to

Chiang Mai

Route

Depart

Return

Price

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Mon 9/1

4:00 pm-9:45 am

1 stop29h 45m

Chiang Mai

Mon 9/8

10:30 am-2:25 pm

1 stop39h 55m

$858

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Fri 9/5

5:45 pm-9:20 am

2 stops27h 35m

Chiang Mai

Fri 9/12

8:00 pm-2:55 pm

2 stops30h 55m

$887

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Wed 9/24

12:10 pm-9:55 pm

1 stop21h 45m

Chiang Mai

Mon 3/2

12:15 am-8:40 am

1 stop21h 25m

$948

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Mon 9/8

12:30 am-10:25 am

1 stop21h 55m

Chiang Mai

Mon 10/6

11:35 am-8:45 pm

1 stop21h 10m

$973

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Wed 9/24

6:00 am-9:55 pm

2 stops27h 55m

Chiang Mai

Mon 3/2

12:15 am-8:40 am

1 stop21h 25m

$1,113

ChicagoChiang Mai

MDW - CNX

MDWCNX

Chicago Midway

Wed 9/24

6:00 am-9:55 pm

2 stops27h 55m

Chiang Mai

Mon 3/2

12:15 am-12:01 pm

2 stops24h 46m

$1,123

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Mon 5/12

6:58 pm-10:20 am

2 stops27h 22m

Chiang Mai

Wed 7/30

11:20 am-6:18 pm

2 stops42h 58m

$1,531

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Mon 9/1

6:50 pm-5:50 pm

3 stops35h 00m

Chiang Mai

Mon 9/8

11:30 am-6:05 am

3 stops30h 35m

$1,689

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Mon 9/1

7:10 am-11:40 pm

2 stops28h 30m

Chiang Mai

Sun 9/7

12:45 am-6:53 pm

2 stops30h 08m

$1,720

ChicagoChiang Mai

MDW - CNX

MDWCNX

Chicago Midway

Tue 6/10

9:21 am-9:55 pm

2 stops24h 34m

Chiang Mai

Tue 6/17

11:15 pm-12:29 pm

2 stops25h 14m

$1,755

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/1

Showing 1-10 of 21 results
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Best time to book a flight from Illinois to Chiang Mai

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

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

Currently, April is the cheapest month in which you can book a flight from Illinois to Chiang Mai (average of $1,011). Flying from Illinois to Chiang Mai in December is currently the most expensive (average of $1,678). 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 CNX?

Find hourly flight availability from Illinois to Chiang Mai. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 1, 2025.

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

Rainfall in Chiang Mai by month

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

In terms of precipitation, rainfall in Chiang Mai ranges from 0.0 - 9.8 inches per month. September is typically the wettest month, when rainfall can reach 9.8 in. January is typically the driest time to visit Chiang Mai when rainfall is around 0.0 in.

Temperature in Chiang Mai by month

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

If weather is an important factor for your trip to Chiang Mai, 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 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 69.8 F).

Reviews of airlines servicing Chiang Mai

Get insights into the airlines that provide service to Chiang Mai. 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 Chiang Mai. Reviews last updated May 1, 2025.
See what other customers who have flown with EVA Air, Korean Air and China Airlines from Illinois to Chiang Mai have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,186 reviews

Food

8.1

Crew

8.6

Overall

8.4

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
EVA Air
8.4
Very good
1,186 reviews
EVA Air
8.4
Very good
1,186 reviews

Food

8.1

Crew

8.6

Overall

8.4

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Korean Air
8.4
Very good
1,069 reviews
EVA Air
8.4
Very good
1,186 reviews

Food

8.1

Crew

8.6

Overall

8.4

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
China Airlines
8.3
Very good
732 reviews
EVA Air
8.4
Very good
1,186 reviews

Food

8.1

Crew

8.6

Overall

8.4

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Asiana Airlines
8.2
Very good
442 reviews
EVA Air
8.4
Very good
1,186 reviews

Food

8.1

Crew

8.6

Overall

8.4

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Delta
8.0
Very good
7,934 reviews
EVA Air
8.4
Very good
1,186 reviews

Food

8.1

Crew

8.6

Overall

8.4

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

Related info for your journey

Find useful and relevant information for your journey from Illinois to Chiang Mai. 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 into for flights to Chiang Mai from Illinois?

    If you book a flight to Chiang Mai from Illinois, you will be flying to Chiang Mai, which is the city’s only airport. Chiang Mai (CNX) is located 1.9 mi from the center of Chiang Mai.

  • What are the cheapest airlines to fly from Illinois to Chiang Mai one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $604. However, be on the lookout for offers from Cathay Pacific and EVA Air, as they are both options that can get you from Illinois to Chiang Mai for a low price.

  • What are the most popular routes from Illinois to Chiang Mai?

    Most travelers choose Chicago O'Hare Intl - Chiang Mai, Chicago Midway - Chiang Mai or Lambert-St Louis - Chiang Mai when deciding on the best route from Illinois to Chiang Mai.

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from Illinois to Chiang Mai (average of $1,011). Flying from Illinois to Chiang Mai in December is currently the most expensive (average of $1,678). 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 Chiang Mai

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Illinois to Chiang Mai

Discover the top 4 airlines that operate flights from Illinois to Chiang Mai. 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$805Average$1,205FlexibilityNo cancel feeOn-time72%
Korean AirCheapest$965Average$1,284FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$1,008Average$1,410FlexibilityNo cancel feeOn-time74%
DeltaCheapest$1,070Average$1,374FlexibilityNo cancel feeOn-timeN/A

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