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Chiang Mai

$485+ Cheap flights from Chicago (CHI) 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 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — CNX
sep. 10 — sep. 171
mié. 9/10
mié. 9/17
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago to Chiang Mai are usually found in April or September, booked 16 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from Chicago to Chiang Mai

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Chiang Mai (CNX). 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 septiembre 5, 2025.

Round-trip from

$798
(Korean Air)

One-way from

$485
(FlightHub)

Popular in

June

Cheapest in

April

Average price

$1,021
From Chicago (CHI) to Chiang Mai
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One-way flight from Chicago (CHI) to Chiang Mai
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Highest demand for flights based on searches. 25% potential increase in price ($453 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($72 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Chicago to Chiang Mai

Cheapest flights from Chicago to Chiang Mai
Explore the most affordable flight options available from Chicago to Chiang Mai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 5, 2025.

This Ovago deal was found by Cheapflights users on 9/4. 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.
dom. 10/194:00 pmORD - CNX
1 stop29h 45mCathay Pacific
dom. 10/2610:35 amCNX - ORD
1 stop39h 25mCathay Pacific
Deal found 9/4$740
This Ovago deal was found by Cheapflights users on 9/3. 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.
lun. 9/84:00 pmORD - CNX
1 stop38h 40mCathay Pacific
dom. 9/287:25 pmCNX - ORD
1 stop31h 00mCathay Pacific
Deal found 9/3$753
This Ovago deal was found by Cheapflights users on 9/4. 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.
mié. 11/52:40 pmORD - CNX
1 stop30h 10mCathay Pacific
dom. 11/1610:35 amCNX - ORD
1 stop39h 25mCathay Pacific
Deal found 9/4$799
This Delta deal was found by Cheapflights users on 9/3. 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. 9/86:05 pmORD - CNX
2 stops39h 50mDelta
dom. 9/2811:15 pmCNX - ORD
2 stops36h 40mDelta
Deal found 9/3$865
This oojo deal was found by Cheapflights users on 9/4. 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.
mar. 10/712:30 amORD - CNX
1 stop21h 55mEVA Air
mié. 10/2911:50 amCNX - ORD
1 stop20h 45mEVA Air
Deal found 9/4$901
This Ovago deal was found by Cheapflights users on 9/4. 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.
mar. 11/112:40 pmORD - CNX
1 stop39h 10mCathay Pacific
mar. 11/2510:35 amCNX - ORD
1 stop39h 25mCathay Pacific
Deal found 9/4$916
This Ovago deal was found by Cheapflights users on 9/3. 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.
lun. 11/242:40 pmORD - CNX
1 stop30h 10mCathay Pacific
mar. 12/210:35 amCNX - ORD
1 stop39h 25mCathay Pacific
Deal found 9/3$934
This FlightHub deal was found by Cheapflights users on 9/3. 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.
mar. 11/1111:30 pmORD - CNX
1 stop22h 05mEVA Air
mar. 11/257:45 pmCNX - ORD
2 stops36h 50mEVA Air
Deal found 9/3$944
This Ovago deal was found by Cheapflights users on 9/4. 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.
dom. 11/232:40 pmORD - CNX
1 stop30h 10mCathay Pacific
mar. 12/27:40 pmCNX - ORD
1 stop30h 20mCathay Pacific
Deal found 9/4$966
This oojo deal was found by Cheapflights users on 9/3. 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. 11/2411:30 pmORD - CNX
1 stop22h 05mEVA Air
mar. 12/212:10 pmCNX - ORD
2 stops44h 25mEVA Air
Deal found 9/3$968
This IEagle deal was found by Cheapflights users on 9/3. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/2511:30 pmORD - CNX
1 stop22h 05mEVA Air
mar. 12/211:50 amCNX - ORD
1 stop20h 45mEVA Air
Deal found 9/3$969
This Delta deal was found by Cheapflights users on 9/2. 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. 9/151:43 pmMDW - CNX
2 stops44h 12mDelta
jue. 9/1811:15 pmCNX - MDW
2 stops25h 13mDelta
Deal found 9/2$1,024

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago 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 septiembre 5, 2025.
Use the filters below to find and compare flights from Chicago to Chiang Mai that are best for you.

Fly from

Chicago

Fly to

Chiang Mai

Route

Depart

Return

Price

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

dom. 10/19

4:00 pm-9:45 am

1 stop29h 45m

Chiang Mai

dom. 10/26

10:35 am-2:00 pm

1 stop39h 25m

$740

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

lun. 9/8

4:00 pm-6:40 pm

1 stop38h 40m

Chiang Mai

dom. 9/28

7:25 pm-2:25 pm

1 stop31h 00m

$753

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

mié. 11/5

2:40 pm-9:50 am

1 stop30h 10m

Chiang Mai

dom. 11/16

10:35 am-1:00 pm

1 stop39h 25m

$799

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

mar. 11/11

2:40 pm-6:50 pm

1 stop39h 10m

Chiang Mai

mar. 11/25

10:35 am-1:00 pm

1 stop39h 25m

$824

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

lun. 9/8

6:05 pm-9:55 pm

2 stops39h 50m

Chiang Mai

dom. 9/28

11:15 pm-11:55 pm

2 stops36h 40m

$865

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

mar. 10/7

12:30 am-10:25 am

1 stop21h 55m

Chiang Mai

mié. 10/29

11:50 am-8:35 pm

1 stop20h 45m

$901

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

lun. 11/24

4:25 pm-9:25 am

2 stops28h 00m

Chiang Mai

mar. 12/2

10:10 am-7:20 am

2 stops34h 10m

$901

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

mar. 11/18

11:30 pm-10:35 am

1 stop22h 05m

Chiang Mai

mié. 12/10

11:50 am-7:35 pm

1 stop20h 45m

$901

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

lun. 11/24

2:40 pm-9:50 am

1 stop30h 10m

Chiang Mai

mar. 12/2

10:35 am-1:00 pm

1 stop39h 25m

$934

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

dom. 9/7

12:30 am-10:25 am

1 stop21h 55m

Chiang Mai

dom. 9/28

8:00 pm-8:45 pm

2 stops36h 45m

$944

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/4

Showing 1-10 of 33 results
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Best time to book a flight from Chicago to Chiang Mai

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

How far ahead should I book a flight from Chicago to Chiang Mai?

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Chiang Mai. Price data was last updated on August 29, 2025.

To ensure you get the cheapest price possible for a flight from Chicago to Chiang Mai, you should look to book at least 16 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, September is the cheapest month in which you can book a flight from Chicago to Chiang Mai (average of $977). Flying from Chicago to Chiang Mai in December is currently the most expensive (average of $1,611). 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 CHI to CNX?

Find hourly flight availability from Chicago 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 septiembre 5, 2025.

It’s optimal to fly from Chicago to Chiang Mai in the evening. By choosing this option you can save up to 12% on the cost of your flight, compared to a flight in the morning.

How much does it cost to fly round-trip from Chicago to Chiang Mai?

What’s the top layover airport for flights from Chicago to Chiang Mai?

Share of 1-stop round-trip flights from Chicago to Chiang Mai chosen by Cheapflights users in the past 12 months, using the same layover each way.

Taipei City (TPE) – chosen by Cheapflights users on 79% of 1-stop itineraries from Chicago to Chiang Mai on Cheapflights.

What’s the cheapest layover airport for flights from Chicago to Chiang Mai?

Average round-trip fare for 1-stop flights from Chicago to Chiang Mai, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Incheon (ICN) is the most affordable 1-stop option, with an average round-trip price of $1,116.

What’s the fastest layover option from Chicago to Chiang Mai?

Shortest average travel time for 1-stop one-way flights from Chicago to Chiang Mai, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Taipei City (TPE) have the shortest average one-way travel time for 1-stop routes: 22h 00m.

Which airport typically offers the quickest layover for flights from Chicago to Chiang Mai?

Average layover duration for 1-stop one-way flights from Chicago to Chiang Mai, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Taipei City (TPE) offer the fastest connection on this route, with an average layover time of 2h 43m.

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 septiembre 5, 2025.
See what other customers who have flown with EVA Air, Korean Air, and Delta from Chicago to Chiang Mai have to say. 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
1,235 reviews

Food

8.1

Comfort

8.3

Crew

8.6

Overall

8.4

Boarding

8.4

Entertainment

8.0

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
1,235 reviews
EVA Air
8.4
Very good
1,235 reviews

Food

8.1

Comfort

8.3

Crew

8.6

Overall

8.4

Boarding

8.4

Entertainment

8.0

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
Korean Air
8.4
Very good
1,137 reviews
EVA Air
8.4
Very good
1,235 reviews

Food

8.1

Comfort

8.3

Crew

8.6

Overall

8.4

Boarding

8.4

Entertainment

8.0

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
Delta
8.0
Very good
7,977 reviews
EVA Air
8.4
Very good
1,235 reviews

Food

8.1

Comfort

8.3

Crew

8.6

Overall

8.4

Boarding

8.4

Entertainment

8.0

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
Cathay Pacific
7.6
Good
986 reviews
EVA Air
8.4
Very good
1,235 reviews

Food

8.1

Comfort

8.3

Crew

8.6

Overall

8.4

Boarding

8.4

Entertainment

8.0

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 Chicago 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 Chicago?

    Most people fly into Chiang Mai (CNX) if they book a flight to Chiang Mai from Chicago. On average, Chiang Mai has 0 inbound flights from Chicago per day from 4 airlines. Chiang Mai is conveniently located just 1.9 mi from Chiang Mai’s city center.

  • How long is the flight from Chicago to Chiang Mai?

    Cathay Pacific and Delta can get you from Chicago to Chiang Mai in just under 29h 45m. Your travel time can differ by up to 14h 27m. The distance from Chicago to Chiang Mai is about 8211 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Chicago to Chiang Mai round-trip?

    Flying on Cathay Pacific is currently your cheapest option to Chiang Mai, with prices starting at $933. Additional round-trip tickets that might be worth considering are offered by Korean Air and EVA Air, with the lowest prices starting at $965 and $975, respectively. These flights start at 29% lower than the current average price 3 months from now.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Chicago to Chiang Mai (average of $977). Flying from Chicago to Chiang Mai in December is currently the most expensive (average of $1,611). 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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Top 4 airlines flying from Chicago to Chiang Mai

Discover the top 4 airlines that operate flights from Chicago 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 septiembre 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$933Average$1,347FlexibilityNo cancel feeOn-time72%
Korean AirCheapest$965Average$1,291FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$975Average$1,441FlexibilityNo cancel feeOn-time74%
DeltaCheapest$1,059Average$1,388FlexibilityNo cancel feeOn-timeN/A

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