฿20,261 Find Cheap Flights from Chiang Mai to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chiang Mai to Illinois departing on 10/11. 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 Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chiang Mai to Illinois, 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 Chiang Mai to Illinois, as well as popular online travel agencies
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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

Free to useThere are no hidden charges or fees.

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

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Chiang Mai to Illinois

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Chiang Mai to Illinois 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 return flight deals from Chiang Mai to Illinois

Tue 6 Oct - Tue 3 Nov
Multiple Airlines Logo
11:20 - 06:20
CNX
-
ORD
31h 00m
2 stops
Multiple Airlines Logo
15:59 - 10:30
ORD
-
CNX
29h 31m
2 stops
฿38,665Multiple Airlines
Tue 6 Oct - Tue 3 Nov
Multiple Airlines Logo
11:20 - 06:20
CNX
-
ORD
31h 00m
2 stops
Multiple Airlines Logo
18:33 - 10:30
ORD
-
CNX
26h 57m
2 stops
฿38,731Multiple Airlines
Tue 6 Oct - Tue 3 Nov
EVA Air Logo
11:35 - 20:45
CNX
-
ORD
21h 10m
1 stop
EVA Air Logo
23:30 - 10:35
ORD
-
CNX
22h 05m
1 stop
฿40,359EVA Air
Tue 6 Oct - Tue 3 Nov
Multiple Airlines Logo
21:10 - 14:43
CNX
-
ORD
29h 33m
2 stops
Multiple Airlines Logo
11:15 - 22:55
ORD
-
CNX
22h 40m
1 stop
฿40,522Multiple Airlines
Tue 6 Oct - Tue 3 Nov
EVA Air Logo
11:35 - 20:45
CNX
-
ORD
21h 10m
1 stop
EVA Air Logo
23:30 - 10:35
ORD
-
CNX
22h 05m
1 stop
฿40,587EVA Air
Tue 6 Oct - Tue 3 Nov
EVA Air Logo
11:35 - 20:45
CNX
-
ORD
21h 10m
1 stop
EVA Air Logo
23:30 - 10:35
ORD
-
CNX
22h 05m
1 stop
฿40,620EVA Air
Wed 7 Oct - Wed 4 Nov
EVA Air Logo
11:35 - 20:45
CNX
-
ORD
21h 10m
1 stop
EVA Air Logo
23:30 - 10:35
ORD
-
CNX
22h 05m
1 stop
฿40,685EVA Air
Tue 6 Oct - Tue 3 Nov
EVA Air Logo
11:35 - 20:45
CNX
-
ORD
21h 10m
1 stop
EVA Air Logo
23:30 - 10:35
ORD
-
CNX
22h 05m
1 stop
฿40,718EVA Air
Wed 7 Oct - Wed 4 Nov
Multiple Airlines Logo
11:30 - 14:43
CNX
-
ORD
39h 13m
2 stops
Multiple Airlines Logo
11:15 - 22:55
ORD
-
CNX
22h 40m
1 stop
฿41,271Multiple Airlines
Wed 15 Jul - Tue 21 Jul
EVA Air Logo
20:00 - 21:10
CNX
-
ORD
37h 10m
2 stops
EVA Air Logo
00:30 - 10:25
ORD
-
CNX
21h 55m
1 stop
฿41,662EVA Air
Booking Insights

KAYAK's insights & trends for Chiang Mai to Illinois flights

Get data-powered insights and trends into flights from Chiang Mai to Illinois to help you find the cheapest flights, the best time to fly, and much more.

How much is a return flight from Chiang Mai to Illinois?

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

What is the cheapest month to fly from Chiang Mai to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chiang Mai to Illinois, 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 Chiang Mai to Illinois is January, when tickets cost ฿0 (return) on average. On the other hand, the most expensive months are March and February, when the average cost of return tickets is ฿52,444 and ฿38,763 respectively.

Find deals

Good to know

Cheapest flight฿20,261
Flight from Chiang Mai to Chicago O'Hare Airport

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Chiang Mai to Illinois?

    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 Chiang Mai to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chiang Mai to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Chiang Mai to Illinois is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chiang Mai to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Chiang Mai to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chiang Mai to Illinois?

    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 from Chiang Mai to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Chiang Mai to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Chiang Mai to Illinois. 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 Chiang Mai to Illinois? 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 1465 reviews
8.4Boarding
8.0Entertainment
8.3Comfort
8.7Crew
8.1Food
Airline reviews

Other than spotty internet, great servic, comfortable and smooth flight!

8.0 ExcellentDror, Apr 2026
TPE - JFK
Read more EVA Air reviews

Other than spotty internet, great servic, comfortable and smooth flight!

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.

Crew was good. Sometimes food was eh. The spaghetti is gross for me. First time i got food, they didn’t provide utensils so i ate with my hands. I was hungry. They gave it to me 20 mins later when a crew member came by. I would fly with them again. Nobody is perfect

Eva air was fine - Trip.com via KAYAK sold my family access to a “VIP” lounge fo a layover in Taipei… i’m please look at my pictures. It was a scam, Trip.com knows it and they are perpetrating a fraud through your web site.

My flight was amazing smooth and the attendants were so friendly and nice

Crew are excellent. Food was good generally. Seats are small and there isn’t much leg room. Overhead bins are very small.

What could have been better, was we were delayed from takeoff for two hours. Initially we were informed that we were delayed for refueling. Then we taxied out on the tarmac, then just waited there for a long time, with no explanation of the delay. Were we just waiting on takeoff clearance or was there some other reason for the delay? The pilot, nor none of the crew informed us passengers. That was not good customer service. That needs to be improved, whenever a delay, inform the passengers for the reason.

More seat space More bathrooms Charging outlets Plane was old

This flight was long and I am so thankful I had a seat in the back of the plane. As I usually must get up and stretch every hour . The crew were probably the most friendly I have flown with. Thanks and I will book again with Eva air. Food was ok too.

It was a pleasure to fly with EVA airlines from Taipei to San Francisco.

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

Information on your arrival and departure airports

Chiang Mai (CNX)