Find flights
Deals
Insights
When to book
FAQs & Tips
Airlines

CHI - CNX

$570 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 9/3. 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
0 bags
Sat 6/29
Sat 7/6

Search 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
In the last 7 days travelers have searched 42,686,544 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from Chicago to Chiang Mai (CHI-CNX)

 
These are the cheapest deals for flights from Chicago to Chiang Mai currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Chicago to Chiang Mai

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Chicago to Chiang Mai.

Recent one-way flight deals from Chicago to Chiang Mai

Only flying one-way? Below are some of the best one-way flight deals from Chicago to Chiang Mai found on KAYAK recently.

Recent last minute flight deals from Chicago to Chiang Mai

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Chicago to Chiang Mai.

Recent direct flight deals from Chicago to Chiang Mai

The latest deals for direct flights from Chicago to Chiang Mai so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Chicago to Chiang Mai

Find recent round-trip train or bus tickets from Chicago to Chiang Mai.

All round-trip flight deals to Chiang Mai

The cheapest plane tickets to Chiang Mai found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
4:05 pm - 6:40 pmORD-CNX
38h 35m1 stop
7:25 pm - 2:25 pmCNX-ORD
31h 00m1 stop
$918Cathay Pacific
Find Deal
Tue, Sep 17 - Wed, Sep 25
4:05 pm - 6:40 pmORD-CNX
38h 35m1 stop
7:25 pm - 2:25 pmCNX-ORD
31h 00m1 stop
$940Cathay Pacific
Find Deal
Thu, Sep 19 - Wed, Sep 25
12:30 am - 10:25 amORD-CNX
21h 55m1 stop
11:35 am - 8:45 pmCNX-ORD
21h 10m1 stop
$971EVA Air
Find Deal
Sun, Sep 1 - Mon, Sep 30
12:30 am - 10:25 amORD-CNX
21h 55m1 stop
11:35 am - 8:45 pmCNX-ORD
21h 10m1 stop
$978EVA Air
Find Deal
Mon, Sep 2 - Tue, Oct 1
12:20 pm - 9:55 pmORD-CNX
21h 35m1 stop
11:15 pm - 9:30 amCNX-ORD
22h 15m1 stop
$1,064Korean Air
Find Deal
Wed, Sep 4 - Tue, Oct 1
12:22 pm - 9:55 pmORD-CNX
45h 33m2 stops
11:15 pm - 9:30 amCNX-ORD
22h 15m1 stop
$1,065Delta
Find Deal
Tue, Sep 3 - Tue, Oct 1
5:45 pm - 8:45 amORD-CNX
27h 00m2 stops
4:55 pm - 8:40 amCNX-ORD
27h 45m2 stops
$1,066
Find Deal
Tue, Sep 3 - Wed, Oct 2
4:25 pm - 1:45 pmORD-CNX
32h 20m2 stops
5:05 pm - 7:20 amCNX-ORD
27h 15m2 stops
$1,067
Find Deal
Tue, Nov 5 - Wed, Nov 27
12:30 pm - 9:55 pmORD-CNX
21h 25m1 stop
11:15 pm - 4:35 pmCNX-ORD
29h 20m2 stops
$1,070Delta
Find Deal
Wed, Aug 28 - Sun, Sep 8
12:20 pm - 9:55 pmORD-CNX
21h 35m1 stop
11:15 pm - 9:30 amCNX-ORD
22h 15m1 stop
$1,102Korean Air
Find Deal
Sat, Sep 7 - Sun, Sep 15
12:30 am - 10:25 amORD-CNX
21h 55m1 stop
$570EVA Air
Find Deal
Tue, Sep 3
8:26 pm - 8:15 pmORD-CNX
59h 49m3 stops
Wed, Jul 10
10:58 pm - 12:25 pmORD-CNX
49h 27m3 stops
Tue, Jul 9
12:30 am - 2:50 pmORD-CNX
26h 20m2 stops
Tue, Sep 3
11:25 am - 10:05 pmORD-CNX
21h 40m1 stop
$644Delta
Find Deal
Sun, Nov 17
6:00 pm - 10:05 pmORD-CNX
40h 05m2 stops
$649Delta
Find Deal
Thu, Oct 31
12:25 pm - 10:05 pmORD-CNX
21h 40m1 stop
$661Korean Air
Find Deal
Thu, Oct 31
12:25 pm - 11:15 amORD-CNX
34h 50m2 stops
$720Japan Airlines
Find Deal
Tue, Jul 9
12:30 pm - 9:55 pmORD-CNX
21h 25m1 stop
$1,159Korean Air
Find Deal
Sun, Jul 7
4:05 pm - 6:40 pmORD-CNX
38h 35m1 stop
$1,203Cathay Pacific
Find Deal
Sat, Jul 13
12:30 am - 10:25 amORD-CNX
21h 55m1 stop
11:35 am - 8:45 pmCNX-ORD
21h 10m1 stop
$2,492EVA Air
Find Deal
Tue, Jun 4 - Wed, Sep 4
12:30 am - 10:25 amORD-CNX
21h 55m1 stop
11:35 am - 8:45 pmCNX-ORD
21h 10m1 stop
$2,493EVA Air
Find Deal
Tue, Jun 4 - Wed, Sep 4
12:30 am - 10:25 amORD-CNX
21h 55m1 stop
8:00 pm - 8:45 pmCNX-ORD
36h 45m2 stops
$2,573EVA Air
Find Deal
Tue, Jun 4 - Wed, Sep 4
12:30 am - 7:10 pmORD-CNX
30h 40m2 stops
11:55 am - 8:45 pmCNX-ORD
44h 50m2 stops
$2,707EVA Air
Find Deal
Tue, Jun 4 - Wed, Sep 4

Flights from Chicago to Chiang Mai - Travel Insights & Trends

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 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 September, where tickets cost $1,005 on average. On the other hand, the most expensive months are May and June, where the average cost of tickets is $2,017 and $1,758 respectively.

How far in advance should I book a flight from Chicago to Chiang Mai?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for 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 month.
To get a below average price on the flight from Chicago to Chiang Mai, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 74 days before departure.

Which airlines provide the cheapest flights from Chicago to Chiang Mai?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from Chicago to Chiang Mai found on KAYAK was with EVA Air for $570. Cathay Pacific proposed a round-trip connection from $918 and EVA Air from $971.

Good to know

Low season

July

High season

December

Cheapest flight

$570
Best time to beat the crowds but there is an average 15% increase in price.
Most popular time to fly with an average 20% increase in price.
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 $570 for a one-way ticket and $918 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, SkyTeam, and oneworld are the airline alliances operating flights between Chicago and Chiang Mai, with SkyTeam being the most commonly used for this route.

  • What is the most popular layover when flying to Chiang Mai from Chicago?

    Incheon is the most popular layover city among KAYAK users traveling from Chicago to Chiang Mai.

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

    The two airlines most popular with KAYAK users for flights from Chicago to Chiang Mai are Korean Air and EVA Air. With an average price for the route of $1,312 and an overall rating of 8.5, Korean Air is the most popular choice. EVA Air is also a great choice for the route, with an average price of $1,246 and an overall rating of 8.3.

  • 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.

See more FAQs

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.
8.5
Korean AirOverall score based on 1150 reviews
8.3Comfort
8.8Crew
8.6Boarding
8.2Entertainment
8.1Food
Airline reviews

The flight crews were extremely professional, helpful, and courteous. Departure and arrival times were accurate. No delay. I will use K airline again. Thanks

10.0 ExcellentAnonymous, Apr 2024IAD - ICN
Read more about Korean Air reviews

The flight crews were extremely professional, helpful, and courteous. Departure and arrival times were accurate. No delay. I will use K airline again. Thanks

On time and flight crew are always so happy to help and always smiling unlike other airlines.

Great crew, decent food Charging plugs were broken on both seats next to me. Only the USB port was available, and that charges, very, very slowly. Seat was also broken, it would not lock into position when reclining.

Korean Air had great service and the Bibimbap dish was the best airplane food I’ve ever had. It was a long flight so in between the two meals they served customers could get Shin ramen. The flight attendants let my children use a pair of nice headphones for the flight and had earbuds and slippers for all the adults. The flight was long but the time passed by relatively quickly because they have many great shows in their entertainment TV. I watched the BTS Love Yourself and Speak Yourself concerts 💜

not too bad but not too great either. Service on all airlines declined ever since covid. Your Delta Stewardess are not that friendly at all. :-(

You did not put me on a Korean Air flight! so I do not have nothing to say

My flight was diverted to Atlanta and I was not given enough time. I paid my travel on April 23, 2023. It was originally Delta from Norfolk to NY, then Korean Air from NY all the way Philippines which is my final stop. Instead from Atlanta to Korea I flew Delta which is okay. Then Korea to Philippines, I flew Asiana Airlines. What I did not like, Ieagle did not sent me an email that my flight was change and so when I went to check in Wednesday the 10th, at 4:30 a.m they told me my flight was delayed at 6;00 p.m and diverted in Atlanta and I am flying Asiana from Korea to Philippines. I do not appreciate that Kayak or Ieagle chenge our flights 5 times and then last minute change again during my day of flight. I hope that you will not make any changes of my flight o Feb 15th because it has to be the same flight with my husband. That is the reason why we made the arrangements early on.

Wonderful cabin crew!!!!! Food was poor, in flight entertainment was just ok. They need to serve more water on a 15 hour flight--we were dehydrated and kept asking for water.

Going through security a third time to get on the next flight was again utterly ridiculous and unnecessary. We were in a International secure area once again and as far as I'm concerned should not have been put through the gears for absolutely no reason. The United States can get all the information they need from the travel itinerary, there was no need to be forced out of a secure area to personally interview everyone on a connecting flight to find out their US immigration status.

Flight arrived early, fantastic, since it is short flight, no food being served

Their announcement was not quite clear in Chinese. The rest is pretty good.

The hygiene of the bathrooms were terrible. Urine smells leaked out into the cabin and the seats were really tight, even for a petite woman like myself. Flight attendants did not go through the cabin enough to offer refreshments.

Fast and efficient boarding. Flight was on time. Service was very good for our long flight. First time flying with this airline and I would highly recommend.

Eva Air's Business Class is pretty decent. With the given price, I think that the food can be better.

Pleasant, comfortable, and entertaining. All told, ZERO issues with it. And sadly, so far the flight was WAY more comfortable than the hellhole that is "Lambug Beach Resort" at Badian Beach!

It was a pleasant fly with Eva Air from NYC to Taipei. The crew were friendly and the food was exceeded my expectation.

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

Overall the flight was what might be expected for a long haul flight to Asia in economy class. The cabin crew was attentive and the food was good. Boarding was fairly fast and easy. The one thing I found frustrating was the EVA app. It is terrible. Trying to do anything on it was almost impossible.

EVA would not help with ticket issue since they were purchased through a travel agency. Even though it was EVA ticket stock. Travel agency Budget Air didn't reissue ticket after airline change which I didn’t learn until trying to checkin on Christmas Day and there was no contact number for the agency to help. I will never use Budget Air to purchase flight again and disappointed in EVA’s refusal to help. Thankfully just under 12 hrs before departure someone from the agency was available to reissue tickets. I was starting to think we would not be flying and the stress trying to resolve was completely unacceptable.

I've flown many many times on Northwest and then Delta. The crew on this flight were absolutely the best I've had the pleasure of being looked after by.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Awful. Flight was continuously getting delayed and gates kept changing without any reason. Flight was delayed for more then 3 hours

Paid premium for Delta only to be on safe but tired old 767 with ancient cabin in mediocre condition. Poor wifi and horrible inflight entertainment. Hardly a premium experience. Should have flown SW and had fun flight crew and no pretense

Our flight to Zurich was delayed by almost 3 hours, so we missed our next flight. There was no indication it would be delayed this much. We were told the gate had changed and then it apparently took over 2 hours to load the "catering" on the plane. We were not compensated in any way for the trouble.

Rated entertainment as Mediocre as there were major problems with the Infotainment system that took probably a half hour for them to fix.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

Half the bathrooms assigned to economy were out of action

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

Book cheap flights from Chicago to Chiang Mai

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Chicago to Chiang Mai found on KAYAK in the last 72 hours.
9/3Tue
1 stopEVA Air
21h 55mORD-CNX
$570
7/10Wed
3 stops
59h 49mORD-CNX
$584
7/9Tue
3 stops
49h 27mORD-CNX
$587
9/3Tue
2 stops
26h 20mORD-CNX
$608
11/17Sun
1 stopDelta
21h 40mORD-CNX
$644
10/31Thu
2 stopsDelta
40h 05mORD-CNX
$649
10/31Thu
1 stopKorean Air
21h 40mORD-CNX
$661
7/9Tue
2 stopsJapan Airlines
34h 50mORD-CNX
$720
7/7Sun
1 stopKorean Air
21h 25mORD-CNX
$1,159
7/13Sat
1 stopCathay Pacific
38h 35mORD-CNX
$1,203

Search by stops

Search by airline

Search by price

Last minute flights from Chicago to Chiang Mai

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Chicago to Chiang Mai that are departing in the next 10 days.
6/4Tue
multi-stopEVA Air
21h 55mORD-CNX
9/4Wed
multi-stopEVA Air
21h 10mCNX-ORD
$2,492
6/4Tue
multi-stopEVA Air
21h 55mORD-CNX
9/4Wed
multi-stopEVA Air
21h 10mCNX-ORD
$2,493
6/4Tue
multi-stopEVA Air
21h 55mORD-CNX
9/4Wed
multi-stopEVA Air
36h 45mCNX-ORD
$2,573
6/4Tue
multi-stopEVA Air
30h 40mORD-CNX
9/4Wed
multi-stopEVA Air
44h 50mCNX-ORD
$2,707

Search by stops

Search by airline

Search by price

Flights to Chiang Mai

Destination:

Chiang Mai (CNX)Thailand

Cabin classes:

Browse destinations: