Cheap flights from Sydney to Southeast Asia

SYD — BKK
2 Dec — 9 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Sydney to Southeast Asia

Popular in

December

Cheapest in

October

Average price

C$ 745
Highest demand for flights based on searches. 19% potential increase in price (C$ 304 potential increase over avg. RT price).
Cheapest flight prices on average. 7% potential price decrease (C$ 86 potential savings vs. average RT price).
Average for round-trip flights in November 2026

Cheapflights Insights

Everything you need to know about your flight from Sydney to Southeast Asia

How far ahead should I book a flight from Sydney to Southeast Asia?

To ensure you get the cheapest price possible for a flight from Sydney to Southeast Asia, you should look to book at least 90 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Sydney to Southeast Asia?

Currently, May is the cheapest month in which you can book a flight from Sydney to Southeast Asia (average of C$ 632). Flying from Sydney to Southeast Asia in December is currently the most expensive (average of C$ 1,375). 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 SYD to YJX?

It’s typically best to fly out from Sydney to Southeast Asia in the evening. Doing so could potentially save you 43% on the flight price compared to flying in the afternoon, which is usually more expensive.

What is the cheapest day to fly from Sydney to Southeast Asia?

Travelers seeking maximum savings on their Sydney to Southeast Asia flight should consider departing on Wednesday mornings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Southeast Asia

Read through reviews of airlines operating flights from Sydney to Southeast Asia, such as Cebu Pacific and VietJet Air. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

6.7

Food

5.8

Overall

6.8

Entertainment

5.2

Comfort

6.7

Crew

7.6

Reviews

1 / 15
10.0
Excellent

N Mark,Sep 2026

MNL - CGK

My paid food wasn’t even served and replaced my meal with a bread. Horrible

Boarding

6.7

Food

5.8

Overall

6.8

Entertainment

5.2

Comfort

6.7

Crew

7.6

Reviews

1 / 15
10.0
Excellent

N Mark,Sep 2026

MNL - CGK

My paid food wasn’t even served and replaced my meal with a bread. Horrible

Boarding

6.7

Food

5.8

Overall

6.8

Entertainment

5.2

Comfort

6.7

Crew

7.6

Reviews

1 / 15
10.0
Excellent

N Mark,Sep 2026

MNL - CGK

My paid food wasn’t even served and replaced my meal with a bread. Horrible

Related info for your journey

  • What airport do you fly from for flights from Sydney to Southeast Asia?

    Sydney Kingsford Smith (SYD), located 7.5 km from the city centre, is the airport you fly out of when you book flights from Sydney to Southeast Asia.

  • What are the cheapest airlines to fly from Sydney to Southeast Asia one-way?

    To fly one-way, consider booking your trip with VietJet Air, which is currently one of the cheapest options available, starting at C$ 200. Scoot flights start at C$ 233 while deals on Cebu Pacific start at C$ 246 one-way.

  • What are the most reliable airlines from Sydney to Southeast Asia?

    Before booking your flight to Southeast Asia from Sydney, check out the most reliable airlines to get you to your destination on time: KLM (80%), Emirates (80%), Bangkok Airways( 80%).

  • What are the cheapest flights from Sydney to Southeast Asia?

    While on average a flight from Sydney to Southeast Asia is generally C$ 955, our data shows the cheapest flight currently is C$ 841. When looking at the most popular route, (Sydney Kingsford Smith - Singapore Changi), you can expect to pay C$ 337 for that flight.

  • Can I find deals for flights from Sydney to Southeast Asia that include hotel bookings?

    Yes. In addition to deals on Sydney to Southeast Asia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Sydney to Southeast Asia?

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

  • Can I find deals for business class flights from Sydney to Southeast Asia?

    Yes. Cheapflights offers flight deals from Sydney to Southeast Asia 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 Sydney to Southeast Asia?

    Currently, May is the cheapest month in which you can book a flight from Sydney to Southeast Asia (average of C$ 632). Flying from Sydney to Southeast Asia in December is currently the most expensive (average of C$ 1,375). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Sydney to Southeast Asia

Top 2 airlines flying from Sydney to Southeast Asia

AirlineCheapestAverageFlexibilityOn-time
VietJet AirCheapestC$ 535AverageC$ 738FlexibilityNo cancel feeOn-timeN/A
Search VietJet Air flights
Cebu PacificCheapestC$ 678AverageC$ 1,052FlexibilityNo cancel feeOn-time64%
Search Cebu Pacific flights

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Can Cheapflights find flights from Sydney to Southeast Asia with no change fees?

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