$456 Cheap Flights from Chicago (ORD) to Chiang Mai (CNX)

View $456 flight on Sat, Sep 13, 2025Opens in a new window

Popular airlines from Chicago O'Hare Intl. Airport (ORD) to Chiang Mai Intl. Airport (CNX)

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Cheap Flights from Chicago to Chiang Mai (ORD-CNX)

Prices were available within the past 7 days and start at $456 for one-way flights and $723 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Cathay Pacific
Mon, Oct 27 - Tue, Nov 4
ORD
Chicago
CNX
Chiang Mai
$723 Roundtrip, found 6 hours ago
$723
Roundtrip
found 6 hours ago
Select Cathay Pacific flight, departing Mon, Oct 27 from Chicago to Chiang Mai, returning Tue, Nov 4, priced at $723 found 6 hours ago
Cathay Pacific
Tue, Nov 11 - Thu, Nov 20
ORD
Chicago
CNX
Chiang Mai
$773 Roundtrip, found 6 hours ago
$773
Roundtrip
found 6 hours ago
Select Cathay Pacific flight, departing Tue, Nov 11 from Chicago to Chiang Mai, returning Thu, Nov 20, priced at $773 found 6 hours ago
Korean Air
Tue, Mar 10 - Wed, Mar 18
ORD
Chicago
CNX
Chiang Mai
$798 Roundtrip, found 7 hours ago
$798
Roundtrip
found 7 hours ago
Select Korean Air flight, departing Tue, Mar 10 from Chicago to Chiang Mai, returning Wed, Mar 18, priced at $798 found 7 hours ago
Delta
Thu, Sep 25 - Mon, Oct 6
ORD
Chicago
CNX
Chiang Mai
$809 Roundtrip, found 9 hours ago
$809
Roundtrip
found 9 hours ago
Select Delta flight, departing Thu, Sep 25 from Chicago to Chiang Mai, returning Mon, Oct 6, priced at $809 found 9 hours ago
Delta
Sun, Feb 15 - Thu, Mar 12
ORD
Chicago
CNX
Chiang Mai
$815 Roundtrip, found 1 day ago
$815
Roundtrip
found 1 day ago
Select Delta flight, departing Sun, Feb 15 from Chicago to Chiang Mai, returning Thu, Mar 12, priced at $815 found 1 day ago
EVA Airways
Wed, Jan 21 - Wed, Feb 11
ORD
Chicago
CNX
Chiang Mai
$954 Roundtrip, found 1 hour ago
$954
Roundtrip
found 1 hour ago
Select EVA Airways flight, departing Wed, Jan 21 from Chicago to Chiang Mai, returning Wed, Feb 11, priced at $954 found 1 hour ago
Air Canada
Sun, Oct 26 - Wed, Nov 5
ORD
Chicago
CNX
Chiang Mai
$1,076 Roundtrip, found 16 hours ago
$1,076
Roundtrip
found 16 hours ago
Select Air Canada flight, departing Sun, Oct 26 from Chicago to Chiang Mai, returning Wed, Nov 5, priced at $1,076 found 16 hours ago
Etihad Airways
Tue, Nov 11 - Thu, Nov 20
ORD
Chicago
CNX
Chiang Mai
$1,253 Roundtrip, found 6 hours ago
$1,253
Roundtrip
found 6 hours ago
Select Etihad Airways flight, departing Tue, Nov 11 from Chicago to Chiang Mai, returning Thu, Nov 20, priced at $1,253 found 6 hours ago
Japan Airlines
Tue, Sep 23 - Tue, Sep 30
ORD
Chicago
CNX
Chiang Mai
$1,267 Roundtrip, found 21 hours ago
$1,267
Roundtrip
found 21 hours ago
Select Japan Airlines flight, departing Tue, Sep 23 from Chicago to Chiang Mai, returning Tue, Sep 30, priced at $1,267 found 21 hours ago
Air China
Wed, Nov 5 - Tue, Nov 25
ORD
Chicago
CNX
Chiang Mai
$1,319 Roundtrip, found 6 days ago
$1,319
Roundtrip
found 6 days ago
Select Air China flight, departing Wed, Nov 5 from Chicago to Chiang Mai, returning Tue, Nov 25, priced at $1,319 found 6 days ago

Find the cheapest month to fly from Chicago (ORD) to Chiang Mai (CNX)

September is typically the cheapest month to fly

From $717 - $1,148 per traveler.

Alternative airports near Chiang Mai

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Chiang Mai Intl. CNX. Cheapest and Closest option available. Average driving time to city center is 10 minutes. Flights from $798
CNX
Chiang Mai Intl.
CheapestClosest
Average driving time to city center10 min
Flights from $798
Flights from Chicago (ORD) to Chiang Mai (CNX)
Origin airport
O'Hare Intl.
Destination airport
Chiang Mai Intl.
Airlines serving
Air Canada, Air China, Asiana Airlines, Austrian Airlines, British Airways, Cathay Pacific, China Southern Airlines, Delta, EVA Airways, Etihad Airways, Finnair, Japan Airlines, Korean Air, Lufthansa, Malaysia Airlines, Qatar Airways, Swiss International Air Lines, Turkish Airlines
Roundtrip price
$723
Distance
8216 mi

Chicago to Chiang Mai Flights

The cheapest times to fly from Chicago to Chiang Mai

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Chicago to Chiang Mai are during the month of October. You can find some of the cheapest flights from Chicago to Chiang Mai with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Chicago to Chiang Mai

Sunday is one of the best days to book for cheap flights from Chicago to Chiang Mai: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Chicago to Chiang Mai

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Chicago to Chiang Mai in 2025. You can also book with separate airlines for your outbound and return journeys, from $456 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Chicago to Chiang Mai flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Chicago to Chiang Mai airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from O'Hare Intl. Airport (ORD) to Chiang Mai Intl. Airport (CNX) cost?
Lock in a cheap one-way flight from $456 or cheap return flight from $723 from O'Hare Intl. Airport (ORD) to Chiang Mai Intl. Airport (CNX) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from O'Hare Intl. Airport (ORD) to Chiang Mai Intl. Airport (CNX)?
Planning your trip for October can help you save, as it's the cheapest month for flights between ORD and CNX. You'll typically find the lowest prices during the off-season.
What is the cheapest airline that flies from O'Hare Intl. Airport (ORD) to Chiang Mai Intl. Airport (CNX)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll take you from ORD to CNX. Then, sort your results by "Price (lowest to highest)" to snap up the best deal available.
How many flights per day from O'Hare Intl. Airport (ORD) to Chiang Mai Intl. Airport (CNX)?
There aren't any daily direct flights available from O'Hare Intl. Airport (ORD) to Chiang Mai Intl. Airport (CNX). But you can opt for flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be cruising above the clouds in no time.
What day of the week has the most flights from ORD to CNX?
Usually you'll find the largest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can change depending on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from O'Hare Intl. Airport (ORD) to Chiang Mai Intl. Airport (CNX)?
Choose a flight from O'Hare Intl. Airport (ORD) to Chiang Mai Intl. Airport (CNX) that leaves before 3 PM to reduce the risk of cancellations. Later departures have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from O'Hare Intl. Airport (ORD) to Chiang Mai Intl. Airport (CNX) last-minute?
Last-minute bookings from ORD to CNX are usually more expensive. For the best prices, start searching for flights ahead of time. That being said, if you can play around with your travel dates, you may find a cheap ticket just before your departure.
Is it cheaper to book an ORD to CNX flight and hotel package?
Booking an ORD to CNX flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Choose from our extensive range of accommodations and then add car rentals, activities and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from O'Hare Intl. Airport (ORD) to Chiang Mai Intl. Airport (CNX)?
In most cases, you can modify or cancel your ORD to CNX flight. However, there may be additional fees, especially if you booked more than 24 hours ago. Double-check your itinerary for the airline's fees and guidelines on flight changes, or if you'd like further details, visit our Customer Service portal.

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*Available to One Key members.