HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
O'Hare Intl

$984+ Cheap flights from Chiang Mai (CNX) to O'Hare Intl (ORD)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/3. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — ORD
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Chiang Mai to O'Hare Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 August 14, 2025.

Round-trip from

$984
(Expedia)

Popular in

November

Cheapest in

March

Average price

$1,348
From Chiang Mai to Chicago O'Hare Intl
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($111 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($43 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Chiang Mai to O'Hare Intl

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 August 14, 2025.

This Expedia deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/311:15 pmCNX - ORD
1 stop22h 15mKorean Air
Mon 9/2212:10 pmORD - CNX
1 stop21h 45mKorean Air
Deal found 8/13$984
This Korean Air deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1412:15 amCNX - ORD
1 stop21h 15mKorean Air
Thu 1/1511:25 amORD - CNX
1 stop22h 40mKorean Air
Deal found 8/14$1,025
This TeaFlight deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TeaFlight is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/311:15 pmCNX - ORD
1 stop22h 15mKorean Air
Thu 9/2512:10 pmORD - CNX
1 stop21h 45mKorean Air
Deal found 8/13$1,026
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/111:15 pmCNX - ORD
2 stops36h 36mDelta
Mon 9/227:10 amORD - CNX
2 stops26h 45mDelta
Deal found 8/13$1,029
This oojo deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1511:50 amCNX - ORD
1 stop20h 45mEVA Air
Thu 1/1511:30 pmORD - CNX
1 stop22h 05mEVA Air
Deal found 8/14$1,054
This Trip.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/612:45 amCNX - ORD
2 stops33h 58mMultiple Airlines
Fri 9/266:30 amORD - CNX
2 stops53h 10mMultiple Airlines
Deal found 8/13$1,073
This TeaFlight deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TeaFlight is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/311:35 amCNX - ORD
1 stop21h 10mEVA Air
Sun 9/2812:30 amORD - CNX
1 stop21h 55mEVA Air
Deal found 8/13$1,088
This TeaFlight deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TeaFlight is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/311:35 amCNX - ORD
1 stop21h 10mEVA Air
Thu 9/2512:30 amORD - CNX
1 stop21h 55mEVA Air
Deal found 8/13$1,089
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/311:15 pmCNX - ORD
2 stops28h 58mDelta
Thu 9/258:52 amORD - CNX
2 stops25h 03mDelta
Deal found 8/13$1,106
This Expedia deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/411:35 amCNX - ORD
2 stops31h 28mMultiple Airlines
Thu 9/2512:30 amORD - CNX
1 stop21h 55mMultiple Airlines
Deal found 8/13$1,117
This oojo deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/111:35 amCNX - ORD
1 stop21h 10mEVA Air
Tue 10/2812:30 amORD - CNX
1 stop22h 05mEVA Air
Deal found 8/14$1,124

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated August 14, 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

Wed 9/3

11:15 pm-9:30 am

1 stop22h 15m

Chicago O'Hare Intl

Mon 9/22

12:10 pm-9:55 pm

1 stop21h 45m

$984

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Sun 12/14

12:15 am-8:30 am

1 stop21h 15m

Chicago O'Hare Intl

Thu 1/15

11:25 am-11:05 pm

1 stop22h 40m

$1,025

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Wed 9/3

11:15 pm-9:30 am

1 stop22h 15m

Chicago O'Hare Intl

Thu 9/25

12:10 pm-9:55 pm

1 stop21h 45m

$1,026

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Wed 9/10

11:15 pm-9:30 am

1 stop22h 15m

Chicago O'Hare Intl

Thu 9/25

12:10 pm-9:55 pm

1 stop21h 45m

$1,026

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Wed 9/3

11:15 pm-11:51 pm

2 stops36h 36m

Chicago O'Hare Intl

Mon 9/22

9:10 am-9:55 pm

2 stops24h 45m

$1,029

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Mon 9/1

11:15 pm-11:51 pm

2 stops36h 36m

Chicago O'Hare Intl

Mon 9/22

7:10 am-9:55 pm

2 stops26h 45m

$1,029

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Sat 9/6

11:15 pm-12:45 pm

2 stops25h 30m

Chicago O'Hare Intl

Mon 9/22

7:10 am-9:55 pm

2 stops26h 45m

$1,029

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Mon 12/15

11:50 am-7:35 pm

1 stop20h 45m

Chicago O'Hare Intl

Thu 1/15

11:30 pm-10:35 am

1 stop22h 05m

$1,054

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Sat 9/6

12:45 am-10:43 pm

2 stops33h 58m

Chicago O'Hare Intl

Fri 9/26

6:30 am-11:40 pm

2 stops53h 10m

$1,073

Chiang MaiChicago

CNX - ORD

CNXORD

Chiang Mai

Wed 9/3

11:35 am-8:45 pm

1 stop21h 10m

Chicago O'Hare Intl

Sun 9/28

12:30 am-10:25 am

1 stop21h 55m

$1,088

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 13 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 round-trip 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

What is the cheapest month to book a flight from Chiang Mai to Chicago O'Hare Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Chiang Mai to Chicago O'Hare Intl Airport (average of $245). Flying from Chiang Mai to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 August 14, 2025.
See what other customers who have flown with EVA Air from Chiang Mai to Chicago O'Hare Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,233 reviews

Crew

8.6

Comfort

8.3

Boarding

8.4

Overall

8.4

Entertainment

8.0

Food

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
EVA Air
8.4
Very good
1,233 reviews
EVA Air
8.4
Very good
1,233 reviews

Crew

8.6

Comfort

8.3

Boarding

8.4

Overall

8.4

Entertainment

8.0

Food

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak

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?

    Most people fly from Chiang Mai (CNX) if they book a flight from Chiang Mai to Chicago O'Hare Intl. On average, Chiang Mai has 0 outbound flights to Chicago O'Hare Intl per day from 1 airline. Chiang Mai is conveniently located just 1.9 mi from Chiang Mai’s city center.

  • What is the cheapest airline to fly from Chiang Mai to Chicago O'Hare Intl Airport round-trip?

    Currently priced at $1,014, EVA Air will fly you from Chiang Mai to Chicago O'Hare Intl Airport and back. In addition to EVA Air, many other airlines offer competitively priced options for your trip. You may be able to fly from Chiang Mai to Chicago O'Hare Intl Airport for 16% less than the average price by searching for this airline.

  • 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 vacation 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.

  • What is the cheapest month to book a flight from Chiang Mai to Chicago O'Hare Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Chiang Mai to Chicago O'Hare Intl Airport (average of $245). Flying from Chiang Mai to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling 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
Schaumburg
Rosemont
Beloit
Hoffman Estates
Skokie
Des Plaines
Elgin
Gurnee
Arlington Heights
Racine
Rockford
Great Lakes
Orland Park
Merrillville
Naperville
Waukegan
Elk Grove Village
Downers Grove
Tinley Park
Evanston

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Chiang Mai to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
Suvarnabhumi to O'Hare Intl flights
Suvarnabhumi to Midway flights
Don Mueang Intl to O'Hare Intl flights

Top airline flying from Chiang Mai to O'Hare Intl

Discover the top airline 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 2,558,603 searches. Data last updated August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
EVA AirCheapest$1,014Average$1,145FlexibilityNo cancel feeOn-time74%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.