£168 Cheap Flights from Sydney (SYD) to Chiang Mai (CNX)

View £168 flight on Tue, 28 Jul 2026Opens in a new window

Popular airlines from Sydney Airport (SYD) to Chiang Mai Intl. Airport (CNX)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 25% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Sydney (SYD) to Chiang Mai (CNX)

Prices were available within the past 7 days and start at £168 for one-way flights and £336 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scoot
Wed, 26 Aug - Sat, 29 Aug
SYD
Sydney
CNX
Chiang Mai
£336 Return, found 1 day ago
£336
Return
found 1 day ago
Select Scoot flight, departing Wed, 26 Aug from Sydney to Chiang Mai, returning Sat, 29 Aug, priced at £336 found 1 day ago
Scoot
Tue, 28 Jul - Tue, 11 Aug
SYD
Sydney
CNX
Chiang Mai
£350 Return, found 1 day ago
£350
Return
found 1 day ago
Select Scoot flight, departing Tue, 28 Jul from Sydney to Chiang Mai, returning Tue, 11 Aug, priced at £350 found 1 day ago
Scoot
Wed, 26 Aug - Sat, 29 Aug
SYD
Sydney
CNX
Chiang Mai
£362 Return, found 1 day ago
£362
Return
found 1 day ago
Select Scoot flight, departing Wed, 26 Aug from Sydney to Chiang Mai, returning Sat, 29 Aug, priced at £362 found 1 day ago
Scoot
Tue, 28 Jul - Tue, 11 Aug
SYD
Sydney
CNX
Chiang Mai
£363 Return, found 1 day ago
£363
Return
found 1 day ago
Select Scoot flight, departing Tue, 28 Jul from Sydney to Chiang Mai, returning Tue, 11 Aug, priced at £363 found 1 day ago
Scoot
Wed, 3 Jun - Wed, 17 Jun
SYD
Sydney
CNX
Chiang Mai
£368 Return, found 1 day ago
£368
Return
found 1 day ago
Select Scoot flight, departing Wed, 3 Jun from Sydney to Chiang Mai, returning Wed, 17 Jun, priced at £368 found 1 day ago
Scoot
Thu, 11 Jun - Thu, 25 Jun
SYD
Sydney
CNX
Chiang Mai
£377 Return, found 1 day ago
£377
Return
found 1 day ago
Select Scoot flight, departing Thu, 11 Jun from Sydney to Chiang Mai, returning Thu, 25 Jun, priced at £377 found 1 day ago
China Eastern Airlines
Mon, 4 May - Mon, 11 May
SYD
Sydney
CNX
Chiang Mai
£536 Return, found 1 day ago
£536
Return
found 1 day ago
Select China Eastern Airlines flight, departing Mon, 4 May from Sydney to Chiang Mai, returning Mon, 11 May, priced at £536 found 1 day ago
China Southern Airlines
Tue, 28 Jul - Tue, 11 Aug
SYD
Sydney
CNX
Chiang Mai
£565 Return, found 1 day ago
£565
Return
found 1 day ago
Select China Southern Airlines flight, departing Tue, 28 Jul from Sydney to Chiang Mai, returning Tue, 11 Aug, priced at £565 found 1 day ago
Singapore Airlines
Sat, 25 Jul - Sat, 1 Aug
SYD
Sydney
CNX
Chiang Mai
£629 Return, found 2 days ago
£629
Return
found 2 days ago
Select Singapore Airlines flight, departing Sat, 25 Jul from Sydney to Chiang Mai, returning Sat, 1 Aug, priced at £629 found 2 days ago
Bangkok Airways
Wed, 26 Aug - Sat, 29 Aug
SYD
Sydney
CNX
Chiang Mai
£659 Return, found 1 day ago
£659
Return
found 1 day ago
Select Bangkok Airways flight, departing Wed, 26 Aug from Sydney to Chiang Mai, returning Sat, 29 Aug, priced at £659 found 1 day ago

Frequently asked questions

How much does a flight from Sydney, NSW (SYD-Kingsford Smith Intl.) to Chiang Mai (CNX-Chiang Mai Intl.) cost?
One-way flights typically cost between £371 and £751 and return flights often range between £371 and £751. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) ticket fares go up or down.
How do I find cheap flights from Sydney, NSW (SYD-Kingsford Smith Intl.) to Chiang Mai (CNX-Chiang Mai Intl.)?
To find a cheap flight from Sydney, NSW (SYD-Kingsford Smith Intl.) to Chiang Mai (CNX-Chiang Mai Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Sydney, NSW (SYD-Kingsford Smith Intl.) to Chiang Mai (CNX-Chiang Mai Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Sydney, NSW (SYD-Kingsford Smith Intl.) to Chiang Mai (CNX-Chiang Mai Intl.)?
There are approximately 86 connecting flights per day from Sydney, NSW (SYD-Kingsford Smith Intl.) (SYD) to Chiang Mai (CNX-Chiang Mai Intl.) (CNX). Some common connection points include Hong Kong Intl. (HKG), Tullamarine (MEL), and Unknown (BNE).
What is the earliest flight from Sydney, NSW (SYD-Kingsford Smith Intl.) to Chiang Mai (CNX-Chiang Mai Intl.)?
The earliest flight from Sydney, NSW (SYD-Kingsford Smith Intl.) to Chiang Mai (CNX-Chiang Mai Intl.) typically departs at approximately 6:00 AM local time. This service is operated by JQ and MU and is seasonal, active in January and November. An early departure like this can help you maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Sydney, NSW (SYD-Kingsford Smith Intl.) to Chiang Mai (CNX-Chiang Mai Intl.)?
You'll typically find the most flights from Sydney, NSW (SYD-Kingsford Smith Intl.) to Chiang Mai (CNX-Chiang Mai Intl.) on a Tuesday, with around 35 flights available. This gives you a good selection of options for your journey. Major airlines on this route include Qantas, Cathay Pacific, and Singapore Airlines. Tuesday offers notably more flight options compared to other days of the week.
What are the most popular departure times for flights from Sydney, NSW (SYD-Kingsford Smith Intl.) to Chiang Mai (CNX-Chiang Mai Intl.)?
The most popular departure times for flights from Sydney, NSW (SYD-Kingsford Smith Intl.) to Chiang Mai (CNX-Chiang Mai Intl.) are in the morning, between 9am and 12pm. About 32% of passengers prefer this time. Many major carriers, including Qantas and Thai Airways, offer flights during this window. This timing works well because it allows you to start your travel day without being too early, and you'll arrive in Chiang Mai with plenty of time to settle in.
How long does it take to fly from Sydney, NSW (SYD-Kingsford Smith Intl.) to Chiang Mai (CNX-Chiang Mai Intl.)?
A flight from SYD to CNX with a layover takes around 23 hours 50 minutes, with the route covering approximately 5,005 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Sydney, NSW (SYD-Kingsford Smith Intl.) to Chiang Mai (CNX-Chiang Mai Intl.)?
Select the "Business class" and "First class" filters when looking for SYD to CNX flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Sydney, NSW (SYD-Kingsford Smith Intl.) to Chiang Mai (CNX-Chiang Mai Intl.) flight with Expedia?
It's easy to earn miles on a Sydney, NSW (SYD-Kingsford Smith Intl.) to Chiang Mai (CNX-Chiang Mai Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Chiang Mai from Kingsford Smith Intl. (SYD)?
If you're planning to travel to Chiang Mai from Kingsford Smith Intl. (SYD), you can fly directly into Chiang Mai Intl. (CNX) Some flights may connect through major hubs like Hong Kong Intl. (HKG), BNE (BNE), Changi (SIN) before reaching Chiang Mai. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Sydney, NSW (SYD-Kingsford Smith Intl.) to Chiang Mai (CNX-Chiang Mai Intl.) at the last minute?
Typically, booking a last minute flight from Sydney, NSW (SYD-Kingsford Smith Intl.) to Chiang Mai (CNX-Chiang Mai Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Sydney, NSW (SYD-Kingsford Smith Intl.) to Chiang Mai (CNX-Chiang Mai Intl.) flight and hotel package?
Securing a Sydney, NSW (SYD-Kingsford Smith Intl.) to Chiang Mai (CNX-Chiang Mai Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Sydney, NSW (SYD-Kingsford Smith Intl.) to Chiang Mai (CNX-Chiang Mai Intl.)?
If you booked your Sydney, NSW (SYD-Kingsford Smith Intl.) to Chiang Mai (CNX-Chiang Mai Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Kingsford Smith Intl.
Destination airport
Chiang Mai Intl.
Airlines serving
Bangkok Airways, Cathay Pacific, China Eastern Airlines, China Southern Airlines, Malaysia Airlines, Qantas Airways, Scoot, Singapore Airlines, Thai Airways International
Return price
£335
Distance
8006 km

Book with confidence

Compare flights from Sydney to Chiang Mai easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Sydney to Chiang Mai. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Chiang Mai Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Kingsford Smith Intl. to Chiang Mai Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Kingsford Smith Intl. (SYD) to Chiang Mai Intl. (CNX)

The easiest way to view the best deals on flights from Sydney to Chiang Mai today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Kingsford Smith Intl. to Chiang Mai Intl. start at just £336 and range up to £659.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Sydney and Chiang Mai
  • booking your flight during August, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Sydney to Chiang Mai flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Kingsford Smith Intl. to Chiang Mai Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Sydney to Chiang Mai easily and book with confidence

Explore a world of travel with Expedia

*Available to Expedia members.