CHI - CNX

$401 Find Cheap Flights from Chicago 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 Chicago to Chiang Mai departing on 1/12. 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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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$822
Overall average: $975
EVA Air
Wed 2/18Wed 3/11
ORD - CNX • 1 stop
Cheapest one-way
$401
Typical prices: $610-$754
Multiple Airlines
Mon 1/12
ORD - CNX • 3 stops
Top airlines
EVA Air
Cheapest • from $822 (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 30% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
April
Cheapest • 26% 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 Chicago to Chiang Mai (CHI-CNX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago 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 Chicago to Chiang Mai

Wed, Feb 18 - Wed, Mar 11
EVA Air Logo
11:30 pm - 10:35 am
ORD
-
CNX
22h 05m1 stop
EVA Air Logo
11:50 am - 8:35 pm
CNX
-
ORD
20h 45m1 stop
$822EVA Air
Mon, Jan 26 - Wed, Feb 4
Cathay Pacific Logo
2:35 pm - 9:50 am
ORD
-
CNX
30h 15m1 stop
Cathay Pacific Logo
7:40 pm - 12:55 pm
CNX
-
ORD
30h 15m1 stop
$835Cathay Pacific
Wed, Jan 21 - Wed, Feb 4
Multiple Airlines Logo
4:25 pm - 9:25 am
ORD
-
CNX
28h 00m2 stops
Multiple Airlines Logo
5:05 pm - 7:20 am
CNX
-
ORD
27h 15m2 stops
$838Multiple Airlines
Tue, Jan 20 - Tue, Feb 17
Multiple Airlines Logo
4:25 pm - 11:20 am
ORD
-
CNX
29h 55m2 stops
Multiple Airlines Logo
12:10 pm - 7:20 am
CNX
-
ORD
32h 10m2 stops
$872Multiple Airlines
Wed, Jan 21 - Wed, Feb 4
EVA Air Logo
11:30 pm - 9:00 pm
ORD
-
CNX
32h 30m2 stops
EVA Air Logo
11:50 am - 7:35 pm
CNX
-
ORD
20h 45m1 stop
$891EVA Air
Wed, Feb 18 - Wed, Mar 11
EVA Air Logo
11:30 pm - 9:00 pm
ORD
-
CNX
32h 30m2 stops
EVA Air Logo
11:50 am - 8:35 pm
CNX
-
ORD
20h 45m1 stop
$894EVA Air
Thu, Apr 30 - Thu, May 7
EVA Air Logo
12:30 am - 10:25 am
ORD
-
CNX
21h 55m1 stop
EVA Air Logo
11:35 am - 9:00 pm
CNX
-
ORD
21h 25m1 stop
$908EVA Air
Wed, Jan 21 - Wed, Feb 4
EVA Air Logo
11:30 pm - 10:35 am
ORD
-
CNX
22h 05m1 stop
EVA Air Logo
11:50 am - 7:35 pm
CNX
-
ORD
20h 45m1 stop
$917EVA Air
Thu, Feb 19 - Wed, Feb 25
Delta Logo
6:00 am - 10:55 pm
MDW
-
CNX
27h 55m2 stops
Delta Logo
12:15 am - 11:59 am
CNX
-
MDW
24h 44m2 stops
$1,308Delta
Thu, Feb 19 - Wed, Feb 25
Delta Logo
6:00 am - 10:55 pm
MDW
-
CNX
27h 55m2 stops
Delta Logo
12:15 am - 5:45 pm
CNX
-
MDW
30h 30m2 stops
$1,338Delta
Booking Insights

KAYAK's insights & trends for Chicago to Chiang Mai flights

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

What’s the cheapest day of the week to fly from Chicago to Chiang Mai?

The average price of all round-trip flights from Chicago to Chiang Mai clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Chicago to Chiang Mai, look for departures on Tuesdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from Chiang Mai, Sunday is the cheapest day to fly and Monday is the most expensive.

What is the cheapest month to fly from Chicago 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 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 to Chiang Mai is April, where tickets cost $970 (return) on average. On the other hand, the most expensive months are June and May, where the average cost of round-trip tickets is $2,111 and $1,631 respectively.

How far in advance should I book a flight from Chicago 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 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 to Chiang Mai, you should book around 2 weeks before departure, which saves you about 30% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonJune
Cheapest flight$401
Best time to beat the crowds but there is an average 62% increase in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Chicago O'Hare Airport to Chiang Mai

When to book flights from Chicago to Chiang Mai

Are your dates flexible? Find out the best times to travel from Chicago 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 flights from Chicago to Chiang Mai

  • What is the cheapest flight from Chicago to Chiang Mai?

    In the last 3 days, the lowest price for a flight from Chicago to Chiang Mai was $401 for a one-way ticket and $822 for a round-trip.

  • Do I need a passport to fly between Chicago and Chiang Mai?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Chicago and on arrival in Chiang Mai.

  • Which airports will I be using when flying from Chicago to Chiang Mai?

    On your way to Chiang Mai, you’ll fly out from one of these Chicago airports: Chicago Midway or Chicago O'Hare Intl. You’ll be landing at Chiang Mai.

  • Which aircraft models fly most regularly from Chicago to Chiang Mai?

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

  • Which airline alliances offer flights from Chicago to Chiang Mai?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Chicago 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 $1,283 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 $1,058 and an overall rating of 8.4.

  • How does KAYAK find such low prices on flights from Chicago 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 to Chiang Mai.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago 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 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 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 with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago 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 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 Chicago 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 Chicago 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 1296 reviews
8.6Crew
8.3Comfort
8.0Entertainment
8.1Food
8.4Boarding
Airline reviews

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

10.0 ExcellentVip, Dec 2025
LAX - TPE
Read more EVA Air reviews

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

Flight Attendants could have been nicer and food portions could be bigger.

Great experience, comfort and food is delicious. Always great service and one time

The food from Los Angeles to Taipei made me throw up. The flight is also not comfort. But the staffs are very friendly and nice.

For the price, it was better than other airlines; quality of food and service was very good.

I appreciate the email reminders for online check-in which made my entry to the lines less stressful. The flight was on schedule and on time. The baording staff were proactively helpful and approachable. The airplane inflight food, entertainment and comfies as well as provisions are excellent even in the economy seating. The airline transfer was smooth and easy! Luggage safe and intact! Thank you EVA airline for making my trip a reliable safe and comfortable experience.

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.

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Getting to the flight was arduous and lengthy. The flight itself was good but the food option wasn’t a good selection. I need to do a Kosher option on my return. Flight crew were nice

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

one hour transit not good. cathay pacific is not helpful at all

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.

The morning in Hong Kong was ridiculous. Very chaotic. The flight was delayed. Missed connecting flights. Kathy should be more competent in getting the planes ready ahead of time so that flights can depart on time.. totally ridiculous and unnecessary. Very poor performance.

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.

Crew on this flight dedicate their business class service to their high priority members. They would get priority service even the seats are behind me, and meals priority service and orders. I get the left over choices. I refused to eat because I felt discriminated, never booking this airline.

First time tying out business class with this airline, hat a disappointment, never returning. We didn’t get the meal as requested from Singapore to HKG flight. While meals served connecting flight, crew takes meal order based off passenger membership status by giving the. Priority selection of meals. It was a battle, plain disappointment, not worth the hype, price, class as categorized/ advertised

Leg room wasn't that great. Other than that it was a good flight

Everything you need to know for your flight from Chicago to Chiang Mai

Information on your arrival and departure airports