ORD - CNX

$470 Find Cheap Flights from Chicago O'Hare Airport to Chiang Mai

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from O'Hare Intl to Chiang Mai departing on 2/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Chiang Mai

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Chiang Mai, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Chiang Mai, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$892
Overall average: $1,045
EVA Air
Wed 4/15Sun 4/26
ORD - CNX • 1 stop
Cheapest one-way
$470
Typical prices: $663-$2,382
Multiple Airlines
Sun 2/15
ORD - CNX • 2 stops
Top airlines
EVA Air
Cheapest • from $892 (round-trip)
EVA Air
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 29% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 24% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Chiang Mai!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from O'Hare Intl to Chiang Mai (ORD-CNX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from O'Hare Intl to Chiang Mai that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from O'Hare Intl to Chiang Mai

Wed, Apr 15 - Sun, Apr 26
EVA Air Logo
12:30 am - 10:25 am
ORD
-
CNX
21h 55m
1 stop
EVA Air Logo
8:00 pm - 9:00 pm
CNX
-
ORD
37h 00m
2 stops
$892EVA Air
Tue, Mar 17 - Tue, Mar 24
Etihad Airways Logo
2:10 pm - 6:10 am
ORD
-
CNX
28h 00m
1 stop
Etihad Airways Logo
8:50 am - 8:35 am
CNX
-
ORD
35h 45m
1 stop
$905Etihad Airways
Wed, Feb 18 - Wed, Mar 11
EVA Air Logo
11:30 pm - 11:20 am
ORD
-
CNX
46h 50m
2 stops
EVA Air Logo
12:10 pm - 8:35 pm
CNX
-
ORD
44h 25m
2 stops
$928EVA Air
Wed, Feb 18 - Wed, Mar 11
EVA Air Logo
11:30 pm - 11:20 am
ORD
-
CNX
46h 50m
2 stops
EVA Air Logo
12:10 pm - 8:35 pm
CNX
-
ORD
44h 25m
2 stops
$929EVA Air
Sun, May 3 - Sun, May 31
Multiple Airlines Logo
11:50 am - 9:20 am
ORD
-
CNX
33h 30m
2 stops
Multiple Airlines Logo
8:00 pm - 2:55 pm
CNX
-
ORD
30h 55m
2 stops
$930Multiple Airlines
Tue, Feb 24 - Thu, Apr 2
Etihad Airways Logo
1:10 pm - 6:10 am
ORD
-
CNX
28h 00m
1 stop
Etihad Airways Logo
9:30 am - 8:35 am
CNX
-
ORD
35h 05m
1 stop
$948Etihad Airways
Tue, Mar 17 - Tue, Mar 24
Etihad Airways Logo
2:10 pm - 6:10 am
ORD
-
CNX
28h 00m
1 stop
Etihad Airways Logo
8:50 am - 8:35 am
CNX
-
ORD
35h 45m
1 stop
$950Etihad Airways
Mon, Mar 16 - Tue, Mar 24
EVA Air Logo
12:30 am - 10:35 am
ORD
-
CNX
22h 05m
1 stop
EVA Air Logo
7:45 pm - 8:35 pm
CNX
-
ORD
36h 50m
2 stops
$954EVA Air
Tue, Mar 24 - Thu, Apr 2
Etihad Airways Logo
2:10 pm - 6:10 am
ORD
-
CNX
28h 00m
1 stop
Etihad Airways Logo
9:30 am - 8:35 am
CNX
-
ORD
35h 05m
1 stop
$960Etihad Airways
Tue, Apr 21 - Thu, May 7
EVA Air Logo
12:30 am - 1:45 pm
ORD
-
CNX
25h 15m
2 stops
EVA Air Logo
11:55 am - 9:00 pm
CNX
-
ORD
45h 05m
2 stops
$966EVA Air
Booking Insights

KAYAK's insights & trends for O'Hare Intl to Chiang Mai flights

Get data-powered insights and trends into flights from O'Hare Intl to Chiang Mai to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Chicago O'Hare Intl Airport to Chiang Mai?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago O'Hare Intl Airport to Chiang Mai, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Chicago O'Hare Intl Airport to Chiang Mai is February, where tickets cost $972 (return) on average. On the other hand, the most expensive months are June and May, where the average cost of round-trip tickets is $1,803 and $1,768 respectively.

How far in advance should I book a flight from Chicago O'Hare Intl Airport to Chiang Mai?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Chicago O'Hare Intl Airport to Chiang Mai, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Chicago O'Hare Intl Airport to Chiang Mai, you should book around 2 weeks before departure, which saves you about 29% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$470
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly with an average 12% increase in price.
Flight from Chicago O'Hare Airport to Chiang Mai

When to book flights from O'Hare Intl to Chiang Mai

Are your dates flexible? Find out the best times to travel from O'Hare Intl to Chiang Mai based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Chicago O'Hare Airport to Chiang Mai flights

  • What is the cheapest flight from Chicago O'Hare Intl Airport to Chiang Mai?

    In the last 3 days, the lowest price for a flight from Chicago O'Hare Intl Airport to Chiang Mai was $470 for a one-way ticket and $892 for a round-trip.

  • Do I need a passport to fly between Chicago O'Hare Airport and Chiang Mai?

    A passport is required to fly from Chicago O'Hare Airport to Chiang Mai.

  • Which aircraft models fly most regularly from Chicago O'Hare Airport to Chiang Mai?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Chicago O'Hare Airport to Chiang Mai?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Chicago O'Hare Airport and Chiang Mai, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Chicago to Chiang Mai, EVA Air or Korean Air?

    The two airlines most popular with KAYAK users for flights from Chicago to Chiang Mai are EVA Air and Korean Air. With an average price for the route of $1,432 and an overall rating of 8.4, EVA Air is the most popular choice. Korean Air is also a great choice for the route, with an average price of $1,291 and an overall rating of 8.4.

  • How does KAYAK find such low prices on flights from Chicago O'Hare Airport to Chiang Mai?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago O'Hare Airport to Chiang Mai.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago O'Hare Airport to Chiang Mai?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chiang Mai from Chicago O'Hare Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago O'Hare Airport to Chiang Mai?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chiang Mai with an airline and back to Chicago O'Hare Airport with another airline. Booking your flights between Chicago O'Hare Airport and CNX can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago O'Hare Airport to Chiang Mai?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chiang Mai from Chicago O'Hare Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from O'Hare Intl to Chiang Mai

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Chiang Mai. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from O'Hare Intl to Chiang Mai? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
EVA AirOverall score based on 1338 reviews
8.4Boarding
8.1Food
8.3Comfort
8.6Crew
8.0Entertainment
Airline reviews

From checking at the airport to end of flights, attentive and caring personnel, comfortable seating, great food. I plan on using EVA again. Thank you, all.

10.0 ExcellentAnonymous, Jan 2026
DFW - TPE
Read more EVA Air reviews

From checking at the airport to end of flights, attentive and caring personnel, comfortable seating, great food. I plan on using EVA again. Thank you, all.

Very nice, I feel I got good value for the price.

Amazing one of the best airlines i have ever traveled with. I live with medical issues called psoriatic arthritis and was in pain on the flight. The flight crew made sure I had fresh ice pack ever hour. Going above an beyond with service and care ⭐️⭐️⭐️⭐️⭐️.

Certain flight crew member were rude and short with me when I asked questions.

We were very impressed with the modern plane its amenities, as well as the services of flight attendants.

Everything was great, however the seats in the back are very small. Not as Comfortable as I would have liked.

The crew very accommodating and food too is good. Keep up the good work

The crews are very efficient. Other airlines should learn from them when it comes to boarding and departing from the airplane. They also display efficiency in serving meals. They don't keep the aisles blocked for hours like some other airlines. The food is poor. Generally the food was unrecognizable and poorly prepared. The only thing that made it better than US flag carriers is that there was a fresh fruit bowl with each meal.

Very good service and food. Crew was professional and considerate. Cabin and restrooms were kept clean

EVA! What is going on with your food!?!? Pre pandemic I used to go to Taiwan at least twice a year and always flew EVA — the food was consistently tasty for airplane food. Post pandemic, it’s not great at all. Step it up!

The boarding process was efficient and quick. The seats were comfortable. The food was good. The service was excellent. We had a lovely flight from Seattle on Korean air

Flight crew was fantastic. The aircraft was meticulously cleaned at all times. The crew was continuously checking to see if the passengers were ok.

They were trying to get people to check luggage because the over head compartments were full but when we boarded there were lots of empty places that people could have put the luggage.

It was good, I liked the self-serve snacks but it was a little difficult to get the alcohol, which is understandable since I wouldn't want kids sneaking it.

Friendly flight attendants and gate agents. Very clean plane and food was good!

I was unable to select decent seats, and so I was stuck in the middle seat because it was selected for me

There was a lot of partial tv shows but not enough to last the flight. The food was incredible! The crew were so helpful and patient. Lots more space than what I usually get on an international flight. Very comfortable!

Stingy on the drinks - 15 hour direct flight and could barely get attention for some water

Not many people, so you can lay down on two seats

They did an excellent job helping me with a wheelchair. I couldn’t have asked for any better help.

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The flight was comfortable and uneventful, which is what I desire

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

I didn't have much experience with Cathay Pacific airlines because of delay and missed connections, the bulk of the trip was on Japan Airlines.

Flight delayed first from bad weather, then after boarding there was a problem with the plane. We had to get off and onto another plane...connections were missed and the trip took an additional 10 hours!! Pre-paid seatting was not honored due ro last minute carrier changes. Most of the trip was on Japan Airline.

The bed was alright in business class. Food variety and quality were not up to the mark compared to the business class airfare.

Crew and food were great in-flight. We had a 2 hour delay, no communication, and just got left in a limbo. The crew arrived late and they were running checkouts on the plane (which is important, but why not doing it earlier?) Cathay did nothing to about the delay, and a lot of people missed their connection flights. I had to run and got stuck at checkpoint, which made my entire trip very unpleasant. Got to my gate 5 mins prior to them closing it.

My flight was suppose to be at 7:45pm to fly but it didnt fly out until 8:55 to dallas so then all of my other flights was late and delay ihad to wait at the airport for extra 14 hours to be able to get on a different plane

There were delays at boarding and landing. These events resulted in a tight transfer time in HK. Poor signage for transfers. Finally, lost luggage at final destination.

It was good. The planes needed to be updated though, they were dated and the entertainment systems were old. Service was amazing. The pre-booked meals were lacklustre.

Super delayed. Unnecessary. Need more competent people doing logistics to keep things moving on time. Totally unacceptable.

Flew from lax economy on cathay 777. Seat configuration 3-4-3. When the forward seat reclines it feels like someone is leaning forward and staring you. If you are slightly big tray tables will touch your abdomen even with seats upright. AVOID this above 777 configuration at all cost for a long flight. However their Airbus 350 3-3-3 configuration felt spacious and Seats wider.

The staff were so friendly and accommodating. The food was great. Lots of movies to choose from as well as tv shows. Highly recommend.

Everything you need to know for your flight from O'Hare Intl to Chiang Mai

Information on your arrival and departure airports