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ORD - CNX

Find cheap flights from Chicago O'Hare Airport to Chiang Mai from $787

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 7/9. 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
Fri 6/7
Fri 6/14

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 43,968,530 times on KAYAK, and here is why:

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

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Cheap flight deals 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 and deals for you by selecting your travel dates.
Choose your dates
7:29 pm - 9:55 pmORD-CNX
38h 26m2 stops
11:15 pm - 11:59 pmCNX-ORD
36h 44m2 stops
$1,298Delta
Find Deal
Tue, Jul 9 - Mon, Sep 9
7:29 pm - 9:55 pmORD-CNX
38h 26m2 stops
11:15 pm - 9:30 amCNX-ORD
22h 15m1 stop
$1,319Delta
Find Deal
Tue, Jul 9 - Mon, Sep 9
4:05 pm - 6:40 pmORD-CNX
38h 35m1 stop
7:25 pm - 2:25 pmCNX-ORD
31h 00m1 stop
$1,432Cathay Pacific
Find Deal
Tue, Jul 9 - Mon, Sep 9
12:30 am - 11:15 amORD-CNX
46h 45m2 stops
8:00 pm - 8:45 pmCNX-ORD
36h 45m2 stops
$1,434EVA Air
Find Deal
Mon, Jul 8 - Mon, Sep 9
12:30 am - 10:25 amORD-CNX
21h 55m1 stop
11:55 am - 8:45 pmCNX-ORD
44h 50m2 stops
$1,456EVA Air
Find Deal
Mon, Jul 8 - Mon, Sep 9
5:45 pm - 7:10 pmORD-CNX
37h 25m2 stops
4:55 pm - 3:20 pmCNX-ORD
34h 25m2 stops
$1,463
Find Deal
Mon, Jul 22 - Mon, Aug 5
12:30 pm - 9:55 pmORD-CNX
21h 25m1 stop
11:15 pm - 11:54 pmCNX-ORD
36h 39m2 stops
$1,504Delta
Find Deal
Wed, Jul 31 - Thu, Aug 15
12:25 pm - 4:50 pmORD-CNX
40h 25m2 stops
7:25 pm - 2:25 pmCNX-ORD
31h 00m1 stop
$1,536
Find Deal
Sun, Jun 23 - Fri, Sep 27
4:05 pm - 6:40 pmORD-CNX
38h 35m1 stop
7:25 pm - 2:25 pmCNX-ORD
31h 00m1 stop
$1,839Cathay Pacific
Find Deal
Tue, Jul 9 - Fri, Aug 9
9:20 am - 8:40 pmORD-CNX
23h 20m2 stops
11:15 pm - 9:30 amCNX-ORD
22h 15m1 stop
$2,103Korean Air
Find Deal
Fri, Jun 28 - Tue, Sep 24

Flights from O'Hare Intl to Chiang Mai - Travel Insights & Trends

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’s the cheapest day of the week to fly from Chicago O'Hare Airport to Chiang Mai?

The average price of all flights from Chicago O'Hare Intl Airport to Chiang Mai clicked on KAYAK for each day over the last 12 months.
For Chicago O'Hare Airport to Chiang Mai, Friday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Chiang Mai back to Chicago O'Hare Airport, the best deals are generally found on Saturday, with Friday being the most expensive.

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 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 September, where tickets cost $1,007 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 O'Hare Intl Airport 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 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 month.
To get a below average price on the flight from Chicago O'Hare Intl Airport 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 O'Hare Airport to Chiang Mai?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from Chicago O'Hare Airport to Chiang Mai found by KAYAK users in the last 72 hours was for $1,298 on Delta, followed by Cathay Pacific ($1,432). One-way flight deals have also been found from as low as $868 on Korean Air and from $1,005 on EVA Air.

Good to know

Low season

April

High season

December

Cheapest flight

$787
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 9% 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 $787 for a one-way ticket and $1,298 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?

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

  • What is the most popular layover when flying to Chiang Mai from Chicago O'Hare Airport?

    Incheon is the most popular layover city among KAYAK users traveling from Chicago O'Hare Airport 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 $1,358 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 $1,164 and an overall rating of 8.3.

  • 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.

See more FAQs

Top 3 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.
8.5
Korean AirOverall score based on 1181 reviews
8.6Boarding
8.2Food
8.8Crew
8.3Comfort
8.2Entertainment
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

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

Always fly with Korean Airlines. Best service great food. Nice and clean as always.

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.

seamless check in/ friendly staff, food is good, always love flying Eva Air

Very uncomfortable and crowded seats in economy. Flight attendant refused request to move to nearby unused seat with more legroom because “It was more money for that seat”. It was also near impossible to reach airline directly by phone. Waits upwards of an hour and not very helpful customer service representatives after long wait. Cannot recommend this airline.

West Jet has a horrible boarding process and the seats have no cushion.

Everything went smoothly. I didn’t like that when I booked in the main cabin my wife and I weren’t seated together. One would think when booking on an option that allows picking your seat. They would put you and your travel partner together. Had to call to get it sorted. They did fix.

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

It was a good experience except when boarding a female flight attendant did not go out of her way to assist my teenage daughters in finding space for their carry-ons after their compartments were full.

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

Delayed due to an ill passenger after loading. Not preventable on Delta's part. Was in first class. The seats are becoming worn and detaching from their velcro attachments. Only got snacks on flight. The attendant was not the friendliest.

I would fly again the whole experience was great. The only feed back I can give that they don't do that American Airlines does is the crew there is more humorous with boarding and thank their passengers. It makes it more fun to fly with them. I would however fly Delta again.

Big plane, long flight, absolutely no leg room and basically non existent air! I am 5”4’ and always travel Main Cabin, I was miserable on this plane and could barely move when we arrived in Cabo due to the cramped leg area!

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.
7/9Tue
3 stops
40h 50mORD-CNX
$787
7/10Wed
2 stops
35h 12mORD-CNX
$809
7/10Wed
2 stopsKorean Air
23h 35mORD-CNX
$868
7/2Tue
2 stopsKorean Air
44h 30mORD-CNX
$880
7/8Mon
1 stopEVA Air
21h 55mORD-CNX
$1,005
6/25Tue
2 stopsDelta
23h 20mORD-CNX
$1,075
7/2Tue
1 stopCathay Pacific
38h 35mORD-CNX
$1,122
6/28Fri
2 stopsDelta
38h 25mORD-CNX
$1,127
6/29Sat
1 stopEVA Air
21h 55mORD-CNX
$1,150
6/28Fri
1 stopCathay Pacific
38h 35mORD-CNX
$1,467

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Chicago O'Hare Airport - Chiang Mai Flights

Departure:

Chicago O'Hare Airport (undefined)United States

Destination:

Chiang Mai (CNX)Thailand

Return flight deals:

Chiang Mai - Chicago O'Hare Airport

Cabin classes:

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