CHI - CNX

$471 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 3/3. 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
$892
Overall average: $972
EVA Air
Wed 2/25Wed 3/4
ORD - CNX • 1 stop
Cheapest one-way
$471
Typical prices: $539-$549
Cathay Pacific
Tue 3/3
ORD - CNX • 1 stop
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 • 30% 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 25 - Wed, Mar 4
EVA Air Logo
11:30 pm - 10:35 am
ORD
-
CNX
22h 05m
1 stop
EVA Air Logo
12:10 pm - 7:35 pm
CNX
-
ORD
44h 25m
2 stops
$892EVA Air
Sun, Mar 8 - Mon, Mar 16
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
$901EVA Air
Wed, Feb 25 - Wed, Mar 4
EVA Air Logo
11:30 pm - 10:35 am
ORD
-
CNX
22h 05m
1 stop
EVA Air Logo
11:50 am - 7:35 pm
CNX
-
ORD
20h 45m
1 stop
$918EVA 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
7:45 pm - 8:35 pm
CNX
-
ORD
36h 50m
2 stops
$928EVA Air
Sun, Mar 15 - Tue, Mar 31
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
$948Etihad Airways
Thu, Apr 16 - Sun, Apr 26
Cathay Pacific Logo
4:15 pm - 9:45 am
ORD
-
CNX
29h 30m
1 stop
Cathay Pacific Logo
7:25 pm - 1:55 pm
CNX
-
ORD
30h 30m
1 stop
$950Cathay Pacific
Wed, Feb 18 - Tue, Mar 10
Delta Logo
11:25 am - 10:55 pm
ORD
-
CNX
22h 30m
1 stop
Delta Logo
12:15 am - 11:51 pm
CNX
-
ORD
35h 36m
2 stops
$954Delta
Thu, Apr 16 - Sun, Apr 26
Multiple Airlines Logo
6:10 pm - 10:20 am
MDW
-
CNX
28h 10m
2 stops
Multiple Airlines Logo
11:20 am - 1:55 am
CNX
-
MDW
26h 35m
2 stops
$1,077Multiple Airlines
Tue, Apr 7 - Mon, Apr 20
Multiple Airlines Logo
11:00 am - 10:20 am
MDW
-
CNX
35h 20m
2 stops
Multiple Airlines Logo
11:20 am - 5:50 am
CNX
-
MDW
30h 30m
2 stops
$1,082Multiple Airlines
Sun, Feb 22 - Mon, Mar 9
Delta Logo
6:40 pm - 10:55 pm
MDW
-
CNX
39h 15m
2 stops
Delta Logo
12:15 am - 10:31 pm
CNX
-
MDW
34h 16m
2 stops
$1,314Delta
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 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 February, where tickets cost $895 (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 $1,763 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 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 seasonJune
Cheapest flight$471
Best time to beat the crowds but there is an average 66% increase in price.
Most popular time to fly and prices are also 1% 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 $471 for a one-way ticket and $892 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 $1,238 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 $1,046 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 3 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 1333 reviews
8.0Entertainment
8.1Food
8.4Boarding
8.6Crew
8.3Comfort
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

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

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.

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

Outdated equipment in disrepair, wifi inoperable. Broken seats, taped air vents, generally poor condition, the 717 showed its age and lack of upkeep.

My flight out of Baton Rouge to Atlanta was delayed by a half hour. This got us into Atlanta airport 30 minutes late. I ran through the airport to get to my connecting flight. As I approached the boarding gate, I saw the boarding door was still open and a passenger was being checked in. But when I got to the gate, the boarding agent told me they had already given away my seat and there were no empty seats on that flight. So I had to take a later flight. That has never happened to me before. Very frustrating.

Connection through Atlanta was difficult. Mechanical issue on plane caused a two hour delay. New gate was a mile away.

No WiFi. Comfort plus should have alcohol provided, crew only offered water or tea. Who the heck wants tea?

The flight was delayed and oversold. I volunteered to give up my seat for compensation. Thinking I could get a good night's sleep instead of arriving home at 2 am. It took over an hour to get the new reservation confirmed, three different gate attendants, and two red coats. It took even longer to confirm the overnight hotel, and when I arrived, the line was 45 minutes long, with two people checking in, and at least 15 people slowly, very slowly—no food except frozen convenience food, no coupon for food from airlines. Slept, headed back to the airport, and that flight had an equipment change and a gate change just as they were about to board. It took an additional hour to board as they cleaned the plane from storage.

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

Information on your arrival and departure airports