CHI - CNX

$565 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 5/21. 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.
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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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Cheap Flight Deals 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.

Recent round-trip flight deals from Chicago to Chiang Mai

KAYAK's recommended round-trip deals from the most popular airlines that fly from Chicago to Chiang Mai.
Discover the best prices for you by selecting your travel dates on KAYAK.
Cathay Pacific Logo
4:00 pm - 9:45 amORD-CNX
29h 45m1 stop
Cathay Pacific Logo
10:30 am - 2:25 pmCNX-ORD
39h 55m1 stop
$858Cathay Pacific
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Mon, Sep 1 - Mon, Sep 8
 Logo
5:45 pm - 9:20 amORD-CNX
27h 35m2 stops
 Logo
8:00 pm - 2:55 pmCNX-ORD
30h 55m2 stops
Fri, Sep 5 - Fri, Sep 12
EVA Air Logo
2:00 pm - 10:25 amORD-CNX
32h 25m2 stops
EVA Air Logo
11:50 am - 7:35 pmCNX-ORD
20h 45m1 stop
$992EVA Air
Find Deal
Wed, Oct 15 - Thu, Dec 4
EVA Air Logo
12:30 am - 10:25 amORD-CNX
21h 55m1 stop
EVA Air Logo
11:50 am - 7:35 pmCNX-ORD
20h 45m1 stop
$1,010EVA Air
Find Deal
Wed, Aug 27 - Fri, Dec 19
Delta Logo
6:20 pm - 9:55 pmORD-CNX
39h 35m2 stops
Delta Logo
11:15 pm - 6:48 pmCNX-ORD
31h 33m2 stops
$1,147Delta
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Sun, May 11 - Sun, May 25
Delta Logo
5:55 pm - 9:55 pmORD-CNX
40h 00m2 stops
Delta Logo
12:15 am - 4:38 pmCNX-ORD
29h 23m2 stops
$1,157Delta
Find Deal
Thu, Aug 28 - Thu, Dec 18
China Airlines Logo
6:58 pm - 10:20 amORD-CNX
27h 22m2 stops
China Airlines Logo
11:20 am - 6:18 pmCNX-ORD
42h 58m2 stops
$1,531China Airlines
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Mon, May 12 - Wed, Jul 30
China Southern Logo
6:03 pm - 10:25 amORD-CNX
28h 22m2 stops
China Southern Logo
11:30 am - 6:05 amCNX-ORD
30h 35m3 stops
$1,689China Southern
Find Deal
Mon, Sep 1 - Mon, Sep 8
China Southern Logo
6:50 pm - 10:25 amORD-CNX
51h 35m3 stops
China Southern Logo
6:50 pm - 5:12 amCNX-ORD
47h 22m2 stops
$1,701China Southern
Find Deal
Thu, Aug 28 - Fri, Dec 19
China Airlines Logo
7:59 pm - 10:20 amORD-CNX
26h 21m2 stops
China Airlines Logo
11:20 am - 5:40 amCNX-ORD
30h 20m2 stops
$1,774China Airlines
Find Deal
Fri, May 30 - Sun, Jun 29
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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 $988 (return) on average. On the other hand, the most expensive months are May and December, where the average cost of round-trip tickets is $1,897 and $1,803 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 1 week before departure. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low seasonAugust
High seasonDecember
Cheapest flight$565
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 33% 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 $565 for a one-way ticket and $858 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?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Chicago 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?

    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, 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 $1,249 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 $1,114 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.

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 1186 reviews
8.4Boarding
8.3Comfort
8.0Entertainment
8.1Food
8.6Crew
Airline reviews

seats are pitched well. you don't feel too tight.

10.0 ExcellentNana, Mar 2025TPE - SFO
Read more EVA Air reviews

seats are pitched well. you don't feel too tight.

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.

Movie selection was not as good as recent flights I've taken (EVA and other airlines).

I was sleep when they brought the food. They had put a note on my seat. There was no food when I asked for food later. There was just one main meal served in this 14 hours flight. They offered me sandwich with ham which I don’t eat since I am pescatarian. Long story short I had to wait to get to TPE to get something to eat. I am extremely disappointed from the service. I have been flying EVA since I was 1 year old. Perhaps no more EVA for me. Seems EVA glorious day is long gone

Excellent food. Good service. Crammed Premium Economy seats. I Asked to change seats during check in. They told me the flight was fully booked. But on board I saw empty seats where I could have been easily relocated.

Good. Please add a non- applicable category to your questions.

The app was awful. No accurate info. Paying for internet is a negative (Delta is free). The crew was very nice for the most part although you are not guaranteed to get good service. Some crew would ignore requests for things as simple as a cup of water if you were sleeping when the first serving was made. Food was great. Male crew member was exceptionally kind and responsive.

Good experience but could be better for people with injuries and needing extra assistance

It was a good flight. I would highly recommend it to family and friends.

The employees were professional and efficient. I consider myself a traveler but have trouble with the international fare served on airplanes. I admit Americans buy their food in the supermarket and we typically don’t eat the ligaments and cartilage. I know that is whiny but as I age, I dislike it more. At least things weren’t covered in cheese. The desserts are terrible! My neighbor didn’t eat her bread so I asked if I could have it. First time for everything but had been traveling a total of 27 hours and was hungry.

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 delay in Korea was a pain and set us back a day. I have to give big props to Korean Air for setting up a hotel with dinner and transportation to and from the hotel. I also needed assistance with a wheelchair and they did an outstanding job.

Great except for the delay in Korea. Korean Air did a great job setting up a hotel for the night. I also needed assistance with a wheelchair and they were outstanding.

The flight was on time and very quick, as expected, but the leg room isn't great in coach seats.

The boarding process for Korean airlines is very straightforward and easy. You've never met such helpful and friendly people. The food was great and the entertainment options were excellent too. My teenage boys found programs they wanted to watch while I had fun watching a full season of the Last Man - the Blind Investigator (Japanese), which my wife enjoyed too. My only complaint was that it takes a very long time to taxi at ICN (20 minutes) and the pilot had to hold at the gate for 10 minutes after our scheduled departure time, which meant we got to Seattle 27 minutes late. Luckily I had a long enough connection to make my next flight, but just barely.

Just a typical domestic poor flight nothing more. There is no food choices in such a flight. Crew doesn't really care if you are on-board or not

long flights are difficult but the crew and amenities made it a very good experience

Our seat row plus one ahead and behind we're completely overlooked during beverage service...

Need to have space for Cary on when traveler boarding any zone

Flight was delayed due to weather. Crew did a nice job of making us comfortable. No complain complaints.

Our bag was lost so that made unnecessary chaos On our trip

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

It was an overnight flight and I desperately needed coffee before we landed, but Delta does only one beverage service, and that is shortly after takeoff, not before landing at 5 am.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

I've stomach problems after 2 hours of flight, Iris, the flight purser not only did her best to make me feel comfortable, she went above and beyond providing pain relievers medicines and ointment. She look and found a doctor passenger on the flight to provide advise. She even report on ground staffs about my condition and provide wheelchair upon arrival. Kudos to her and Cathay Pacific!

Very noisy and careless crew on this overnight flight. They should understand customers want to sleep

Everything was fine and I have no complaints or things to note.

The flight was delayed for 30 mins. The overall experience was good.

The economy seats are much indeed roomier. Meals needs improvement.

It was okay overall but the food was very, very bad.

flight delayed 45 mins - missed connection - 1 hr layover became 8 hr layover waiting for next flight -

Fast boarding flight on time boarded plane back to front instead of stupid zone groups like US airlines do...

Baggage delayed for 2 days and still chasing for reimbursement of basis items. Very horrible customer care service.

Horrible airline. Missed my baggage and don’t want to reimburse for the basis items. Pathetic customer service

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

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