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Chiang Mai

$435+ Cheap flights from O'Hare Intl (ORD) to Chiang Mai (CNX)

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 7/28. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CNX
Jul 7 — Jul 141
Mon 7/7
Mon 7/14
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago O'Hare Intl to Chiang Mai are usually found in September or February, booked 13 days in advance, depart on a Tuesday or Wednesday and return on a Friday

Cheap flight deals from O'Hare Intl to Chiang Mai

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Chiang Mai (CNX). 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 July 2, 2025.

Round-trip from

$734
(Travelocity)

One-way from

$435
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$1,516
From Chicago O'Hare Intl to Chiang Mai
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One-way flight from Chicago O'Hare Intl to Chiang Mai
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Highest demand for flights based on searches. 22% potential increase in price ($383 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($46 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from O'Hare Intl to Chiang Mai

Cheapest flights from O'Hare Intl to Chiang Mai
Explore the most affordable flight options available from O'Hare Intl to Chiang Mai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 2, 2025.

This FlightHub deal was found by Cheapflights users on 7/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/205:45 pmORD - CNX
2 stops27h 35mMultiple Airlines
Mon 11/37:45 pmCNX - ORD
2 stops24h 35mMultiple Airlines
Deal found 7/1$696
This Ovago deal was found by Cheapflights users on 6/30. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/52:40 pmORD - CNX
1 stop39h 10mCathay Pacific
Tue 11/187:40 pmCNX - ORD
1 stop30h 20mCathay Pacific
Deal found 6/30$937
This Korean Air deal was found by Cheapflights users on 7/1. 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.
Tue 11/117:00 amORD - CNX
2 stops27h 05mKorean Air
Mon 11/2412:15 amCNX - ORD
2 stops34h 37mKorean Air
Deal found 7/1$970
This IEagle deal was found by Cheapflights users on 7/1. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1912:30 amORD - CNX
1 stop21h 55mEVA Air
Mon 11/311:50 amCNX - ORD
1 stop20h 45mEVA Air
Deal found 7/1$975

Cheapflights Fare Finder

Customize your flight search to find flights from O'Hare Intl to Chiang Mai 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 July 2, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Chiang Mai that are best for you.

Fly from

O'Hare Intl

Fly to

Chiang Mai

Route

Depart

Return

Price

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Mon 9/1

5:45 pm-11:15 am

2 stops29h 30m

Chiang Mai

Mon 9/29

9:10 pm-2:55 pm

2 stops29h 45m

$734

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Mon 9/1

4:00 pm-6:40 pm

1 stop38h 40m

Chiang Mai

Mon 9/8

7:25 pm-2:25 pm

1 stop31h 00m

$939

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Sun 8/31

12:30 am-10:25 am

1 stop21h 55m

Chiang Mai

Mon 9/29

11:35 am-8:45 pm

1 stop21h 10m

$975

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Mon 7/28

12:15 pm-9:50 pm

2 stops45h 35m

$435

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Sun 8/31

4:00 pm-6:40 pm

1 stop38h 40m

$439

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Tue 9/2

12:10 pm-9:55 pm

1 stop21h 45m

$450

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Wed 8/13

12:30 am-10:25 am

1 stop21h 55m

$590

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Mon 7/28

1:30 am-9:20 am

2 stops43h 50m

$706

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Wed 7/9

7:11 am-9:55 pm

2 stops26h 44m

$720

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

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

Have a flexible travel schedule? Discover the best time to fly to Chiang Mai from O'Hare Intl 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 Chicago O'Hare Intl Airport to Chiang Mai

How far ahead should I book a flight from Chicago O'Hare Intl Airport to Chiang Mai?

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to Chiang Mai. Price data was last updated on June 27, 2025.

The best time to book flights from Chicago O'Hare Intl Airport to Chiang Mai is 13 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, April is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Chiang Mai (average of $1,010). Flying from Chicago O'Hare Intl Airport to Chiang Mai in December is currently the most expensive (average of $1,639). 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.

What is the cheapest time of day to fly from ORD to CNX?

Find hourly flight availability from O'Hare Intl to Chiang Mai. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 2, 2025.

It’s optimal to fly from Chicago O'Hare Intl Airport to Chiang Mai at noon. By choosing this option you can save up to 17% on the cost of your flight, compared to a flight in the morning.

Reviews of airlines servicing Chiang Mai

Get insights into the airlines that provide service to Chiang Mai. 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 Chiang Mai. Reviews last updated July 2, 2025.
Peruse reviews from past customers who have flown with EVA Air, Korean Air, and Japan Airlines from Chicago O'Hare Intl Airport to Chiang Mai to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,214 reviews

Crew

8.6

Overall

8.4

Boarding

8.4

Comfort

8.3

Food

8.1

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very good
1,214 reviews
EVA Air
8.4
Very good
1,214 reviews

Crew

8.6

Overall

8.4

Boarding

8.4

Comfort

8.3

Food

8.1

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Korean Air
8.4
Very good
1,101 reviews
EVA Air
8.4
Very good
1,214 reviews

Crew

8.6

Overall

8.4

Boarding

8.4

Comfort

8.3

Food

8.1

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Japan Airlines
8.3
Very good
1,505 reviews
EVA Air
8.4
Very good
1,214 reviews

Crew

8.6

Overall

8.4

Boarding

8.4

Comfort

8.3

Food

8.1

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Delta
8.0
Very good
7,975 reviews
EVA Air
8.4
Very good
1,214 reviews

Crew

8.6

Overall

8.4

Boarding

8.4

Comfort

8.3

Food

8.1

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Cathay Pacific
7.6
Good
924 reviews
EVA Air
8.4
Very good
1,214 reviews

Crew

8.6

Overall

8.4

Boarding

8.4

Comfort

8.3

Food

8.1

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Chiang Mai. 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 into for flights to Chiang Mai from Chicago O'Hare Intl?

    Chiang Mai (CNX), located 1.9 mi from the city center, is the airport you fly into when you book flights from Chicago O'Hare Intl to Chiang Mai. 4 airlines have flights to Chiang Mai from Chicago O'Hare Intl on a regular basis. Booking flights from Chicago O'Hare Intl to Chiang Mai should not be difficult; the airport handles an average of 0 inbound flights from Chicago O'Hare Intl per day.

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

    According to our current data, Cathay Pacific ($939), and EVA Air ($975) offers the cheapest pricing from Chicago O'Hare Intl Airport to Chiang Mai. Cathay Pacific is 28% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Chicago O'Hare Intl Airport to Chiang Mai one-way?

    To fly one-way, consider booking your trip with Cathay Pacific, which is currently one of the cheapest options available, starting at $439. Korean Air flights start at $450 while deals on EVA Air start at $590 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from O'Hare Intl to Chiang Mai 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 Chicago O'Hare Intl Airport to Chiang Mai?

    Currently, April is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Chiang Mai (average of $1,010). Flying from Chicago O'Hare Intl Airport to Chiang Mai in December is currently the most expensive (average of $1,639). 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

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Top 4 airlines flying from O'Hare Intl to Chiang Mai

Discover the top 4 airlines that operate flights from O'Hare Intl to Chiang Mai. 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 July 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$933Average$1,347FlexibilityNo cancel feeOn-time72%
Korean AirCheapest$965Average$1,265FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$1,016Average$1,454FlexibilityNo cancel feeOn-time74%
DeltaCheapest$1,059Average$1,374FlexibilityNo cancel feeOn-timeN/A

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