฿20,671 Find Cheap Flights from Chiang Mai to Illinois – 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 Chiang Mai to Illinois departing on 2/10. 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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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
21:10 - 14:43
CNX
-
ORD
29h 33m
2 stops
Multiple Airlines Logo
11:15 - 22:55
ORD
-
CNX
22h 40m
1 stop
฿37,242Multiple Airlines
Wed 23 Sep - Sun 4 Oct
แอร์แคนาดา Logo
11:30 - 14:43
CNX
-
ORD
39h 13m
2 stops
แอร์แคนาดา Logo
15:40 - 16:35
ORD
-
CNX
36h 55m
2 stops
฿37,578แอร์แคนาดา
Tue 6 Oct - Tue 3 Nov
Multiple Airlines Logo
11:20 - 12:02
CNX
-
ORD
36h 42m
3 stops
Multiple Airlines Logo
11:15 - 22:55
ORD
-
CNX
22h 40m
1 stop
฿37,914Multiple Airlines
Fri 20 Nov - Sun 6 Dec
เดลต้า Logo
00:15 - 08:30
CNX
-
ORD
21h 15m
1 stop
เดลต้า Logo
19:55 - 22:55
ORD
-
CNX
38h 00m
2 stops
฿39,393เดลต้า
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
฿41,006EVA Air
Tue 6 Oct - Tue 3 Nov
แอร์แคนาดา Logo
21:10 - 14:43
CNX
-
ORD
29h 33m
2 stops
แอร์แคนาดา Logo
08:49 - 15:40
ORD
-
CNX
41h 51m
2 stops
฿41,107แอร์แคนาดา
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
฿41,141EVA Air
Fri 20 Nov - Sun 6 Dec
เดลต้า Logo
00:15 - 11:56
CNX
-
MDW
24h 41m
2 stops
เดลต้า Logo
17:25 - 22:55
MDW
-
CNX
40h 30m
2 stops
฿45,847เดลต้า
Wed 28 Oct - Mon 2 Nov
Korean Air Logo
00:15 - 12:48
CNX
-
MDW
24h 33m
2 stops
Korean Air Logo
06:00 - 22:55
MDW
-
CNX
27h 55m
2 stops
฿146,413Korean Air
Wed 28 Oct - Mon 2 Nov
Korean Air Logo
00:15 - 12:48
CNX
-
MDW
24h 33m
2 stops
Korean Air Logo
06:00 - 22:55
MDW
-
CNX
27h 55m
2 stops
฿146,480Korean 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.

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 August and March, when the average cost of return tickets is ฿70,652 and ฿54,115 respectively.

Good to know

Cheapest flight

฿20,671
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 1500 reviews
8.0Entertainment
8.4Boarding
8.3Comfort
8.7Crew
8.1Food
Airline reviews

First international flight where the meals were not to my taste.

8.0 ExcellentIvonny, Jul 2026
TPE - SEA
Read more EVA Air reviews

First international flight where the meals were not to my taste.

Overall, my experience with EVA Air was mixed. The highlight was that the airline clearly tried to provide a premium dining experience by offering the Michelin-starred Kanpai Classic beef yakiniku rice. However, in the limited space of an economy-class cabin, this meal felt overly oily and not very practical to eat. The sauce and grease made it easy to get one’s hands or tray table dirty, and after the meal many passengers may need to go to the lavatory simply to wash their hands. While the food itself may be high quality, the presentation and practicality did not seem well suited to an in-flight environment. Another disappointing part was the paid Wi-Fi service. I paid for the internet package, but the service did not work properly. What made the experience more frustrating was that passengers then had to spend additional time requesting a refund, and the refund process itself was slow and inconvenient. For an international airline, I think a malfunctioning paid service should be handled more efficiently. As for the seat, I feel EVA Air’s economy-class seats may be more comfortable for Asian passengers or people with smaller body frames, but they may not be as comfortable for taller or larger Western passengers on long-haul flights. The overall cabin environment also varied during the flight. Some passengers were not very mindful of noise, cleanliness, or shared cabin etiquette, which affected the comfort of the journey. I believe clearer reminders from the airline regarding cabin manners and hygiene could help improve the overall passenger experience. In short, EVA Air has some strong points, especially in trying to offer a premium Taiwanese-style service, but there are also areas that need improvement: more practical in-flight meals, a more reliable paid Wi-Fi system, faster refund handling, and better cabin management during long-haul flights.

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

Excess baggage fees are outrageous ($250 per bag). Flight crew and planes are nice.

Eva airlines has very goin service, despite being low cost. Meals and fin, not amazing, restrooms always clean and staff polite and helpful

I like Eva Air. I’ve been flying it for several years.. I did notice small changes for the worse by the staff. They’re still way above major carriers based in the USA.

Pleasant crew. Very long flight, a bit uncomfortable at times being seated, but not too bad.

No ice for the drinks. Only gave a half a cup of your beverage. Not enough water. I got very dehydrated.

Polite hard working crew. No complaints really. Meals were not to my liking.

Everything was fantastic! The crew really went above and beyond to make it a great flight. I felt cared for with EVA.

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

Information on your arrival and departure airports