CHI - CNX

$428 Find Cheap Flights from Chicago to Chiang Mai - Compare and Save

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 8/27. 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

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Everything you should know

Cheapest round-trip
$820
Typical prices: $849-$1,143
Cathay Pacific
Sun 10/11Wed 10/21
ORD - CNX • 1 stop
Cheapest one-way
$428
Typical prices: $661-$670
Cathay Pacific
Thu 8/27
ORD - CNX • 1 stop
Top airlines
Cheapest • from $820 (round-trip)
Best reviews • 8.5 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Chicago and Chiang Mai. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $871 (round-trip)
Shortest trip • 22h 00m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 25% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
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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

Sun, Oct 11 - Wed, Oct 21
Cathay Pacific Logo
4:15 pm - 9:45 am
ORD
-
CNX
29h 30m
1 stop
Cathay Pacific Logo
10:30 am - 1:55 pm
CNX
-
ORD
39h 25m
1 stop
$820Cathay Pacific
Sun, Oct 25 - Tue, Nov 10
Cathay Pacific Logo
3:35 pm - 9:50 am
ORD
-
CNX
30h 15m
1 stop
Cathay Pacific Logo
7:40 pm - 12:55 pm
CNX
-
ORD
30h 15m
1 stop
$820Cathay Pacific
Mon, Oct 26 - Wed, Nov 11
Cathay Pacific Logo
3:35 pm - 9:50 am
ORD
-
CNX
30h 15m
1 stop
Cathay Pacific Logo
7:40 pm - 12:55 pm
CNX
-
ORD
30h 15m
1 stop
$823Cathay Pacific
Sun, Oct 25 - Wed, Nov 11
Cathay Pacific Logo
3:35 pm - 6:55 pm
ORD
-
CNX
39h 20m
1 stop
Cathay Pacific Logo
7:40 pm - 12:55 pm
CNX
-
ORD
30h 15m
1 stop
$823Cathay Pacific
Sun, Oct 25 - Mon, Nov 9
Cathay Pacific Logo
3:35 pm - 9:50 am
ORD
-
CNX
30h 15m
1 stop
Cathay Pacific Logo
7:40 pm - 12:55 pm
CNX
-
ORD
30h 15m
1 stop
$823Cathay Pacific
Mon, Oct 26 - Mon, Nov 9
Cathay Pacific Logo
3:35 pm - 9:50 am
ORD
-
CNX
30h 15m
1 stop
Cathay Pacific Logo
10:35 am - 12:55 pm
CNX
-
ORD
39h 20m
1 stop
$823Cathay Pacific
Sun, Oct 18 - Sat, Oct 31
Cathay Pacific Logo
4:15 pm - 9:45 am
ORD
-
CNX
29h 30m
1 stop
Cathay Pacific Logo
10:35 am - 1:55 pm
CNX
-
ORD
39h 20m
1 stop
$823Cathay Pacific
Mon, Oct 26 - Tue, Nov 10
Cathay Pacific Logo
3:35 pm - 9:50 am
ORD
-
CNX
30h 15m
1 stop
Cathay Pacific Logo
10:35 am - 12:55 pm
CNX
-
ORD
39h 20m
1 stop
$823Cathay Pacific
Sun, Sep 13 - Mon, Sep 21
EVA Air Logo
12:30 am - 10:25 am
ORD
-
CNX
21h 55m
1 stop
EVA Air Logo
11:35 am - 8:45 pm
CNX
-
ORD
21h 10m
1 stop
$915EVA Air
Tue, Sep 8 - Wed, Sep 23
EVA Air Logo
12:30 am - 10:25 am
ORD
-
CNX
21h 55m
1 stop
EVA Air Logo
11:35 am - 8:45 pm
CNX
-
ORD
21h 10m
1 stop
$928EVA Air
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.

How much is a round-trip flight from Chicago to Chiang Mai?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Chicago to Chiang Mai departing in October.

Flight prices are typical for this route right now.

Flights to Chiang Mai from Chicago usually cost between $769 and $1,338 in October.
The lowest price found in the past 5 days was $820 on Cathay Pacific (Oct 11-Oct 21).

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 $935 (return) on average. On the other hand, the most expensive months are June and May, where the average cost of round-trip tickets is $1,928 and $1,451 respectively.

Good to know

Low season

February

Cheapest flight

$428
Best time to beat the crowds with an average 37% drop 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 5 days, the lowest price for a flight from Chicago to Chiang Mai was $428 for a one-way ticket and $820 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?

    Star Alliance is the only airline alliance operating flights between Chicago and Chiang Mai.

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

    The two airlines most popular with KAYAK users for flights from Chicago to Chiang Mai are EVA Air and Delta. With an average price for the route of $1,239 and an overall rating of 8.5, EVA Air is the most popular choice. Delta is also a great choice for the route, with an average price of $1,635 and an overall rating of 7.8.

  • 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 airlines flying 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.
8.5
EVA AirOverall score based on 1511 reviews
8.1Food
8.0Entertainment
8.7Crew
8.5Boarding
8.3Comfort
Airline reviews

I put the review all together for the first review

6.0 GoodRichard, Apr 2026
TPE - BKK
Read more EVA Air reviews

I put the review all together for the first review

I liked that they gave us a couple of meals and drinks but the meal was not good and not many options especially if we are seated in the back of the plane.

Again on this leg the WiFi wouldn't work. The seats were comfortable with adequate cushion and space between seats for my legs. Very nice 3-hour flight.

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

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

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

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.

On time service. Seat comfort and the crew service very good .

Eva air is a good airline. The seats on the way to Taipei could have certainly been more comfortable, but all in all it was a pretty good experience.

Boarding is fast and easy for economy class, food was ok baggage policies are good

The crew was very inconsiderate and rude. My flight was scheduled to depart at 6:00am. I received a call from the crew at 5:40am, asking if I was going to make the flight because I was the only one that hasn't boarded yet and boarding ends at 5:50am. I let them know that I will be at the gate in a few minutes, before the 5:50am cutoff. When I arrived at the gate at 5:45am the gate was closed. Departing early on last minute notice without having all passengers on board is inconsiderate and unprofessional.

Very easy to use and convenient, you can perform any action within the same portal

Okay considering we had weather delays which the Pilot notified us of immediately!

The boarding was organized and informative but the plane was tight meaning that you were sitting on one another and extremely uncomfortable. It’s disappointing that can’t have common seating comfort on the plane.

Everything could have benn better. Short fly, no food, no entertainment and no wifi.

Stop changing gates. Stop cancelling flights Stop moving my seat.

The staff was frielndly. The plane was terrible, it was too small and should be decommissioned. There were no back seat screens at all. The only beverages we had a choice from was coffee, tea or water. The only bathroom in the back was behind the flight attendant's jump seat and wasn't working. And I literally felt like I was sitting on top of the guy next to me. It was terribly hot in the plane and we had to sit on the tarmac in Chicago for 1/2 hour due to congestion in Mpls. Wouldn't they have know that before they even boarded us so that we could have sat in comfort in the terminal?

This was one of the worst flights I’ve been on in years. I upgraded to comfort and had such an uncomfortable experience. The person next to me was oversized - which I understand - however, they took up their space and mine. I could only use about 50% of my seat space to not be physically touching this person the entire flight and there was no spatial awareness. I also could not use the seat outlet because their body was obstructing it. It was very inconvenient. Their body kept touching me repeatedly during the flight and I felt very uncomfortable. To pay more for an upgraded space and then not even being able to use it was highly disappointing.

It was very cold because the air conditioner was on high power, and my son got sick.

Horrible. Flight ORD to CGH was okay, but Paris was a nightmare. Old planes, delays, involuntary downgrades, broken planes, terrible communication. CGH to CPT was my worst flight ever.

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

Information on your arrival and departure airports