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Cheap flights from Chiang Mai to Chicago O'Hare Intl Airport from ฿17,556

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29/1. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — ORD
7 Jan — 14 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Chiang Mai to O'Hare Intl

Enter your travel dates to find the best prices.

Cheapest flights from Chiang Mai to O'Hare Intl
Explore the most affordable flight options available from Chiang Mai to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 December 2025.

Mon 15/1211:50CNX - ORD
1 stop20h 45mEVA Air
Thu 15/118:06ORD - CNX
2 stops27h 29mEVA Air
Deal found 8/12฿33,392
Mon 15/1219:40CNX - ORD
1 stop30h 15mCathay Pacific
Thu 15/114:35ORD - CNX
1 stop39h 15mCathay Pacific
Deal found 7/12฿45,914
Sun 28/1213:20CNX - ORD
2 stops31h 10mMultiple Airlines
Thu 1/113:10ORD - CNX
3 stops33h 25mMultiple Airlines
Deal found 7/12฿48,813
Sun 28/1211:50CNX - ORD
1 stop20h 45mEVA Air
Thu 1/115:47ORD - CNX
2 stops53h 48mEVA Air
Deal found 7/12฿53,274

Find flight deals from Chiang Mai to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Chiang Mai (CNX) to O'Hare Intl (ORD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 8 December 2025.

Round-trip from

฿31,321

One-way from

฿17,556

Popular in

November

Cheapest in

March

Average price

฿36,546
EVA Air
  • EVA Air
  • 24/3-8/6
  • 4 total stops
  • 55h 44m total
  • Chiang Mai to Chicago
Search Deals
29/1
  • 29/1
  • 3 total stops
  • 55h 01m total
  • Chiang Mai to Chicago
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (฿32,455 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (฿16,390 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Chiang Mai to O'Hare Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 17,341 searches. Data last updated 8 December 2025.
Use the filters below to find and compare flights from Chiang Mai to Chicago O'Hare Intl Airport that are best for you.

Fly from

Chiang Mai

Fly to

O'Hare Intl

Route

Depart

Return

Price

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Tue 21/4

11:35-05:00

2 stops29h 25m

Chicago O'Hare Intl

Mon 8/6

19:51-10:25

2 stops26h 34m

฿31,321

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Mon 23/3

11:50-14:21

2 stops38h 31m

Chicago O'Hare Intl

Tue 2/6

15:17-10:25

2 stops31h 08m

฿31,608

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Tue 24/3

11:50-20:35

1 stop20h 45m

Chicago O'Hare Intl

Tue 2/6

19:51-10:25

2 stops26h 34m

฿33,392

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Thu 26/3

11:50-20:35

1 stop20h 45m

Chicago O'Hare Intl

Tue 2/6

19:51-10:25

2 stops26h 34m

฿33,392

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Tue 21/4

11:35-21:00

1 stop21h 25m

Chicago O'Hare Intl

Tue 2/6

15:17-10:25

2 stops31h 08m

฿33,392

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Sun 22/3

00:15-09:40

1 stop21h 25m

Chicago O'Hare Intl

Mon 23/3

12:25-22:55

1 stop22h 30m

฿35,399

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Thu 29/1

22:50-16:51

3 stops55h 01m

฿17,556

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Sat 24/1

15:30-11:30

3 stops57h 00m

฿18,162

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Sun 25/1

11:25-17:10

2 stops42h 45m

฿18,289

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Thu 22/1

11:25-14:38

2 stops40h 13m

฿18,289

Flights are sorted by cheapest return flights first.

Deals found on 7/12

Showing 1-10 of 18 results
1
2

Best time to book a flight from Chiang Mai to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Chiang Mai with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chiang Mai to Chicago O'Hare Intl Airport

How much does it cost for a return flight from Chiang Mai to Chicago O'Hare Intl Airport?

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to O'Hare Intl. Reviews last updated 8 December 2025.
Read through reviews of airlines operating flights from Chiang Mai to Chicago O'Hare Intl Airport, such as EVA Air and Korean Air. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.5
Very Good
1,296 reviews
Check prices

Boarding

8.4

Crew

8.6

Overall

8.5

Comfort

8.3

Entertainment

8.0

Food

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.
EVA Air
8.5
Very Good
1,296 reviews
EVA Air
8.5
Very Good
1,296 reviews
Check prices

Boarding

8.4

Crew

8.6

Overall

8.5

Comfort

8.3

Entertainment

8.0

Food

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.
Korean Air
8.4
Very Good
1,183 reviews
EVA Air
8.5
Very Good
1,296 reviews
Check prices

Boarding

8.4

Crew

8.6

Overall

8.5

Comfort

8.3

Entertainment

8.0

Food

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.

Related info for your journey

Find useful and relevant information for your journey from Chiang Mai to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Chiang Mai to Chicago O'Hare Intl?

    Chiang Mai (CNX), located 3.1 km from the city centre, is the airport you fly out of when you book flights from Chiang Mai to Chicago O'Hare Intl. 2 airlines have flights from Chiang Mai to Chicago O'Hare Intl on a regular basis. Booking flights from Chiang Mai to Chicago O'Hare Intl should not be difficult; the airport handles an average of 0 outbound flights to Chicago O'Hare Intl per day.

  • How long is the flight from Chiang Mai to Chicago O'Hare Intl Airport?

    EVA Air can get you from Chiang Mai to Chicago O'Hare Intl Airport in just under 29h 25m. Your travel time can differ by up to . There are 13214 km between Chiang Mai and Chicago O'Hare Intl Airport.

  • What are the cheapest airlines flying from Chiang Mai to Chicago O'Hare Intl Airport round-trip?

    Currently priced at ฿25,007, Korean Air will fly you from Chiang Mai to Chicago O'Hare Intl Airport and back. In addition to Korean Air, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on EVA Air for as low as ฿34,855. Korean Air is currently priced 33% below the average price you’ll pay for this route.

  • Can I find deals for flights from Chiang Mai to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Chiang Mai to O'Hare Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Chiang Mai to O'Hare Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chiang Mai to O'Hare Intl.

  • Can I find deals for business class flights from Chiang Mai to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Chiang Mai to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Rosemont

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Fly from Chiang Mai to O'Hare Intl on these airlines

Choose from the following airlines for your flight from Chiang Mai to O'Hare Intl. Flights are based on user searches made on Cheapflights and were last updated on 8 December 2025.
EVA Air flights from Chiang Mai to Chicago O'Hare Intl

Top 2 airlines flying from Chiang Mai to O'Hare Intl

Discover the top 2 airlines that operate flights from Chiang Mai to O'Hare Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 17,341 searches. Data last updated 8 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest฿31,351Average฿40,599FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
EVA AirCheapest฿34,855Average฿34,933FlexibilityNo cancel feeOn-time74%
Search EVA Air flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Chiang Mai to O'Hare Intl?

Cheapflights makes it easy to find Chiang Mai to O'Hare Intl flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Chiang Mai to O'Hare Intl?

Cheapflights simply makes it quick and affordable to book flights from Chiang Mai to O'Hare Intl by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Chiang Mai to O'Hare Intl with no change fees?

Need flexible booking options for your flight to O'Hare Intl from Chiang Mai? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Chiang Mai to O'Hare Intl become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to O'Hare Intl from Chiang Mai today and book when prices fit your budget.

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