Cheap flights from Sydney to Bangkok Don Mueang Intl Airport from $285

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 28/10. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — DMK
16 Oct — 23 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Sydney Kingsford Smith to Bangkok Don Mueang Intl are usually found in May or June, booked 12 days in advance, depart on a Thursday or Sunday and return on a Monday

Cheap flight deals from Sydney to Don Mueang Intl

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Don Mueang Intl (DMK). 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 16 September 2025.

Round-trip from

$527

One-way from

$285

Popular in

December

Cheapest in

May

Average price

$1,154
20/10-27/10
  • 20/10-27/10
  • 2 total stops
  • 36h 25m total
  • Sydney to Bangkok
28/10
  • 28/10
  • 1 total stop
  • 15h 55m total
  • Sydney to Bangkok
Highest demand for flights based on searches. 18% potential increase in price ($319 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease ($37 potential savings vs. average return price).
Average for round-trip flights in September 2025

Find flight deals from Sydney to Don Mueang Intl

Cheapest flights from Sydney to Don Mueang Intl
Explore the most affordable flight options available from Sydney to Don Mueang Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.

Mon 20/1011:15SYD - DMK
1 stop16h 00mMultiple Airlines
Mon 27/1007:40DMK - SYD
1 stop20h 25mMultiple Airlines
Deal found 14/9$528
Wed 22/1011:15SYD - DMK
1 stop16h 00mMultiple Airlines
Tue 11/1107:40DMK - SYD
1 stop20h 25mMultiple Airlines
Deal found 15/9$530
Wed 17/910:15SYD - DMK
1 stop16h 00mMultiple Airlines
Fri 19/913:40DMK - SYD
1 stop14h 40mMultiple Airlines
Deal found 15/9$543
Tue 28/1011:15SYD - DMK
1 stop15h 55mMultiple Airlines
Sun 23/1107:40DMK - SYD
1 stop20h 25mMultiple Airlines
Deal found 14/9$551
Wed 29/1011:15SYD - DMK
1 stop15h 55mMultiple Airlines
Mon 8/1207:40DMK - SYD
1 stop20h 25mMultiple Airlines
Deal found 15/9$555
Mon 13/1011:15SYD - DMK
1 stop28h 15mMultiple Airlines
Tue 28/1015:40DMK - SYD
1 stop12h 25mMultiple Airlines
Deal found 14/9$561
Mon 10/1111:15SYD - DMK
1 stop15h 55mMultiple Airlines
Wed 19/1107:40DMK - SYD
1 stop20h 25mMultiple Airlines
Deal found 15/9$576
Wed 17/910:15SYD - DMK
1 stop28h 15mMultiple Airlines
Mon 22/913:40DMK - SYD
1 stop14h 40mMultiple Airlines
Deal found 15/9$578
Fri 17/1011:15SYD - DMK
1 stop16h 00mMultiple Airlines
Tue 28/1015:40DMK - SYD
1 stop12h 25mMultiple Airlines
Deal found 14/9$579
Tue 21/1011:15SYD - DMK
1 stop16h 00mMultiple Airlines
Mon 27/1015:40DMK - SYD
1 stop12h 25mMultiple Airlines
Deal found 14/9$581

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sydney to Don Mueang 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 647,157 searches. Data last updated 16 September 2025.
Use the filters below to find and compare flights from Sydney to Bangkok Don Mueang Intl Airport that are best for you.

Fly from

Sydney

Fly to

Don Mueang Intl

Route

Depart

Return

Price

SydneyBangkok

SYD - DMK

SYDDMK

Sydney Kingsford Smith

Sun 19/10

10:15-20:50

1 stop14h 35m

Bangkok Don Mueang Intl

Sun 23/11

21:35-20:35

1 stop19h 00m

$768

SydneyBangkok

SYD - DMK

SYDDMK

Sydney Kingsford Smith

Fri 10/10

10:15-20:50

1 stop14h 35m

Bangkok Don Mueang Intl

Mon 20/10

21:30-21:00

1 stop19h 30m

$825

SydneyBangkok

SYD - DMK

SYDDMK

Sydney Kingsford Smith

Thu 16/10

22:15-09:30

1 stop15h 15m

Bangkok Don Mueang Intl

Wed 22/10

18:45-21:00

1 stop22h 15m

$927

SydneyBangkok

SYD - DMK

SYDDMK

Sydney Kingsford Smith

Mon 1/12

21:50-09:05

1 stop15h 15m

Bangkok Don Mueang Intl

Mon 15/12

21:35-20:35

1 stop19h 00m

$930

SydneyBangkok

SYD - DMK

SYDDMK

Sydney Kingsford Smith

Fri 28/11

10:45-20:30

1 stop13h 45m

Bangkok Don Mueang Intl

Fri 5/12

09:35-09:15

1 stop19h 40m

$942

SydneyBangkok

SYD - DMK

SYDDMK

Sydney Kingsford Smith

Sat 1/11

10:45-21:05

1 stop14h 20m

Bangkok Don Mueang Intl

Sat 15/11

09:35-09:15

1 stop19h 40m

$945

SydneyBangkok

SYD - DMK

SYDDMK

Sydney Kingsford Smith

Sun 23/11

10:45-21:05

1 stop14h 20m

Bangkok Don Mueang Intl

Thu 27/11

09:35-09:15

1 stop19h 40m

$969

SydneyBangkok

SYD - DMK

SYDDMK

Sydney Kingsford Smith

Fri 6/3

10:45-08:05

1 stop25h 20m

Bangkok Don Mueang Intl

Sat 21/3

09:35-09:15

1 stop19h 40m

$1,075

SydneyBangkok

SYD - DMK

SYDDMK

Sydney Kingsford Smith

Fri 31/10

07:05-17:45

1 stop14h 40m

Bangkok Don Mueang Intl

Fri 7/11

13:50-06:05

1 stop12h 15m

$1,118

SydneyBangkok

SYD - DMK

SYDDMK

Sydney Kingsford Smith

Wed 29/10

07:15-19:15

2 stops16h 00m

Bangkok Don Mueang Intl

Mon 8/12

20:15-06:15

2 stops30h 00m

$1,313

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 22 results
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Best time to book a flight from Sydney to Don Mueang Intl

Have a flexible travel schedule? Discover the best time to fly to Don Mueang Intl from Sydney 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 Sydney to Bangkok Don Mueang Intl Airport

How far ahead should I book a flight from Sydney to Bangkok Don Mueang Intl Airport?

Use this chart to determine the optimal time to book a return flight from Sydney to Don Mueang Intl. Price data was last updated on 12 September 2025.

Booking 10 days in advance of your planned departure date is, on average, the best time to get cheap flights from Sydney to Bangkok Don Mueang Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Find hourly flight availability from Sydney to Don Mueang Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 16 September 2025.

It’s optimal to fly from Sydney to Bangkok Don Mueang Intl Airport in the afternoon. By choosing this option you can save up to 39% on the cost of your flight, compared to a flight in the morning.

Reviews of airlines servicing Don Mueang Intl

Get insights into the airlines that provide service to Don Mueang 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 Don Mueang Intl. Reviews last updated 16 September 2025.
Read through reviews of airlines operating flights from Sydney to Bangkok Don Mueang Intl Airport, such as China Southern. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.3

Food

7.3

Comfort

7.8

Entertainment

7.5

Overall

7.5

Boarding

8.0

Reviews

1 / 5
6.0
Good

Ebbi,Aug 2025

LAX - CAN

Boarding was nice the employees and the crew. They were very nice but the food maybe I don’t like it but it’s not international food. It’s more towards Chinese Tayst, which I do understand but that’s only complain. I have.

Crew

8.3

Food

7.3

Comfort

7.8

Entertainment

7.5

Overall

7.5

Boarding

8.0

Reviews

1 / 5
6.0
Good

Ebbi,Aug 2025

LAX - CAN

Boarding was nice the employees and the crew. They were very nice but the food maybe I don’t like it but it’s not international food. It’s more towards Chinese Tayst, which I do understand but that’s only complain. I have.

Related info for your journey

Find useful and relevant information for your journey from Sydney to Don Mueang 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 Sydney to Bangkok Don Mueang Intl?

    Sydney Kingsford Smith (SYD) is the airport you will fly out of if you book a flight from Sydney to Bangkok Don Mueang Intl. You should not have trouble finding flights to Bangkok Don Mueang Intl from Kingsford Smith; the airport handles an average of 0 outbound flights to Bangkok Don Mueang Intl per day. You should also have plenty of airline options to choose from since 2 airlines have flights from the Sydney airport to Bangkok Don Mueang Intl. It is only a 7.5 km journey to Kingsford Smith (SYD) from Sydney’s city centre.

  • What are the cheapest airlines flying from Sydney to Bangkok Don Mueang Intl Airport round-trip?

    Cheapflights users have booked flights from Sydney to Bangkok Don Mueang Intl Airport round-trip from $544. Another airline that can offer you cheap pricing is Thai AirAsia X. Users have found that China Southern is 40% cheaper than the other options available to this destination.

  • Can I find deals for flights from Sydney to Don Mueang Intl that include hotel bookings?

    Yes. In addition to deals on Sydney to Don Mueang Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Sydney to Don Mueang Intl?

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

  • Can I find deals for business class flights from Sydney to Don Mueang Intl?

    Yes. Cheapflights offers flight deals from Sydney to Don Mueang 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

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Alternative routes for Sydney to Don Mueang Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Sydney to Don Mueang Intl

Discover the top 2 airlines that operate flights from Sydney to Don Mueang 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 647,157 searches. Data last updated 16 September 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest$544Average$1,073FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Thai AirAsia XCheapest$575Average$1,017FlexibilityNo cancel feeOn-timeN/A
Search Thai AirAsia X flights

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Can Cheapflights find flights from Sydney to Don Mueang Intl with no change fees?

Yes, we can. To see specific flights from Sydney to Don Mueang Intl with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Sydney to Don Mueang Intl become cheaper?

Yes, Cheapflights offers price alerts on Sydney to Don Mueang Intl 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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