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Cheap flights from Chiang Mai to Sydney from $350

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 27/11. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — SYD
1 Sep — 8 Sep1
1 adult

Cheap flight deals from Chiang Mai to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Chiang Mai (CNX) to Sydney (SYD). 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 27 August 2025.

Round-trip from

$771

One-way from

$350
21/10-4/11
  • 21/10-4/11
  • 3 total stops
  • 57h 05m total
  • Chiang Mai to Sydney
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Scoot
  • Scoot
  • 27/11
  • 1 total stop
  • 26h 50m total
  • Chiang Mai to Sydney
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Find flight deals from Chiang Mai to Sydney

Cheapest flights from Chiang Mai to Sydney
Explore the most affordable flight options available from Chiang Mai to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 August 2025.

Tue 21/1017:40CNX - SYD
1 stop14h 55mMultiple Airlines
Tue 4/1120:05SYD - CNX
2 stops42h 10mMultiple Airlines
Deal found 25/8$771
Thu 27/1115:10CNX - SYD
1 stop14h 05mMultiple Airlines
Mon 1/1217:35SYD - CNX
2 stops25h 00mMultiple Airlines
Deal found 25/8$863
Thu 27/1115:10CNX - SYD
1 stop14h 05mMultiple Airlines
Tue 2/1207:15SYD - CNX
2 stops28h 40mMultiple Airlines
Deal found 25/8$877
Thu 27/1115:10CNX - SYD
1 stop14h 05mMultiple Airlines
Wed 3/1206:35SYD - CNX
2 stops28h 55mMultiple Airlines
Deal found 25/8$879
Thu 27/1115:10CNX - SYD
1 stop14h 05mMultiple Airlines
Sun 7/1217:35SYD - CNX
2 stops25h 00mMultiple Airlines
Deal found 25/8$926
Mon 22/916:40CNX - SYD
2 stops23h 50mMultiple Airlines
Sat 27/921:15SYD - CNX
1 stop22h 35mMultiple Airlines
Deal found 25/8$954
Thu 27/1115:10CNX - SYD
1 stop14h 05mMultiple Airlines
Fri 5/1207:15SYD - CNX
2 stops18h 40mMultiple Airlines
Deal found 25/8$965
Thu 27/1115:10CNX - SYD
1 stop14h 05mMultiple Airlines
Thu 4/1207:15SYD - CNX
2 stops18h 40mMultiple Airlines
Deal found 25/8$983
Tue 25/1101:35CNX - SYD
1 stop29h 10mCebu Pacific
Tue 2/1212:15SYD - CNX
1 stop16h 20mCebu Pacific
Deal found 25/8$985
Fri 28/1115:10CNX - SYD
1 stop14h 05mMultiple Airlines
Tue 2/1212:15SYD - CNX
1 stop16h 20mMultiple Airlines
Deal found 25/8$986

Cheapflights Fare Finder

 
Customise your flight search to find flights from Chiang Mai to Sydney 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 647,157 searches. Data last updated 27 August 2025.
Use the filters below to find and compare flights from Chiang Mai to Sydney that are best for you.

Fly from

Chiang Mai

Fly to

Sydney

Route

Depart

Return

Price

Chiang MaiSydney

CNX - SYD

CNXSYD

Chiang Mai

Tue 21/10

17:40-12:35

1 stop14h 55m

Sydney Kingsford Smith

Tue 4/11

20:05-10:15

2 stops42h 10m

$771

Chiang MaiSydney

CNX - SYD

CNXSYD

Chiang Mai

Thu 27/11

15:10-09:15

1 stop14h 05m

Sydney Kingsford Smith

Mon 1/12

17:35-14:35

2 stops25h 00m

$863

Chiang MaiSydney

CNX - SYD

CNXSYD

Chiang Mai

Fri 28/11

15:10-09:15

1 stop14h 05m

Sydney Kingsford Smith

Mon 1/12

17:35-14:35

2 stops25h 00m

$863

Chiang MaiSydney

CNX - SYD

CNXSYD

Chiang Mai

Thu 27/11

15:10-09:15

1 stop14h 05m

Sydney Kingsford Smith

Tue 2/12

07:15-07:55

2 stops28h 40m

$877

Chiang MaiSydney

CNX - SYD

CNXSYD

Chiang Mai

Fri 28/11

15:10-09:15

1 stop14h 05m

Sydney Kingsford Smith

Tue 2/12

07:15-07:55

2 stops28h 40m

$877

Chiang MaiSydney

CNX - SYD

CNXSYD

Chiang Mai

Thu 27/11

15:10-09:15

1 stop14h 05m

Sydney Kingsford Smith

Wed 3/12

06:35-07:30

2 stops28h 55m

$879

Chiang MaiSydney

CNX - SYD

CNXSYD

Chiang Mai

Fri 28/11

15:10-09:15

1 stop14h 05m

Sydney Kingsford Smith

Wed 3/12

06:35-07:30

2 stops28h 55m

$879

Chiang MaiSydney

CNX - SYD

CNXSYD

Chiang Mai

Fri 28/11

15:10-09:15

1 stop14h 05m

Sydney Kingsford Smith

Sun 7/12

17:35-14:35

2 stops25h 00m

$926

Chiang MaiSydney

CNX - SYD

CNXSYD

Chiang Mai

Thu 27/11

15:10-09:15

1 stop14h 05m

Sydney Kingsford Smith

Sun 7/12

17:35-14:35

2 stops25h 00m

$926

Chiang MaiSydney

CNX - SYD

CNXSYD

Chiang Mai

Mon 22/9

16:40-19:30

2 stops23h 50m

Sydney Kingsford Smith

Sat 27/9

21:15-16:50

1 stop22h 35m

$954

Flights are sorted by cheapest return flights first.

Deals found on 25/8

Showing 1-10 of 19 results
1
2

Best time to book a flight from Chiang Mai to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney 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 Sydney

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

Find hourly flight availability from Chiang Mai to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 27 August 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chiang Mai to Sydney as you normally would.

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. 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 Sydney. Reviews last updated 27 August 2025.
Read through reviews of airlines operating flights from Chiang Mai to Sydney, such as Thai Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Thai Airways
7.8
Good
344 reviews
Check prices

Comfort

7.5

Overall

7.8

Crew

8.3

Entertainment

6.9

Boarding

7.9

Food

7.3

Reviews

1 / 18
10.0
Excellent

Joe,June 2025

BKK - TPE

The flight was very comfortable, and I really appreciated that each seat had an electric outlet to charge devices. The staff was great.
Thai Airways
7.8
Good
344 reviews
Thai Airways
7.8
Good
344 reviews
Check prices

Comfort

7.5

Overall

7.8

Crew

8.3

Entertainment

6.9

Boarding

7.9

Food

7.3

Reviews

1 / 18
10.0
Excellent

Joe,June 2025

BKK - TPE

The flight was very comfortable, and I really appreciated that each seat had an electric outlet to charge devices. The staff was great.

Related info for your journey

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

  • What is the cheapest airline to fly from Chiang Mai to Sydney round-trip?

    Cheapflights users have booked flights from Chiang Mai to Sydney round-trip from $1,406.

  • Can I find deals for flights from Chiang Mai to Sydney that include hotel bookings?

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

  • How can I find direct flights from Chiang Mai to Sydney?

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

  • Can I find deals for business class flights from Chiang Mai to Sydney?

    Yes. Cheapflights offers flight deals from Chiang Mai to Sydney 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 Sydney?

    Currently, May is the cheapest month in which you can book a flight from Chiang Mai to Sydney (average of $129). Flying from Chiang Mai to Sydney in October is currently the most expensive (average of $171). 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

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Katoomba
Penrith
Coogee
Terrigal
Cronulla
Manly
Lithgow
Randwick
Bondi Beach
Leura

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Chiang Mai to Sydney

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

Top airline flying from Chiang Mai to Sydney

Discover the top airline that operate flights from Chiang Mai to Sydney. 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 647,157 searches. Data last updated 27 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Thai AirwaysCheapest$1,406Average$1,447FlexibilityNo cancel feeOn-time77%
Search Thai Airways 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 Sydney?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Chiang Mai to Sydney. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Chiang Mai to Sydney?

Cheapflights simply makes it quick and affordable to book flights from Chiang Mai to Sydney 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 Sydney with no change fees?

Need flexible booking options for your flight to Sydney 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 Sydney become cheaper?

Yes, Cheapflights offers price alerts on Chiang Mai to Sydney flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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