Cheap flights from Sydney to Southeast Asia from £124

The month of October is, on average, the cheapest month to fly to Southeast Asia from Sydney, with most prices found around £446. If you are unable to visit Southeast Asia during the month of October, then departing from Sydney during the month May is also very affordable. Most momondo users find prices during this month for around £447.

Our data shows that Sunday is the least expensive day to fly to Southeast Asia. Tickets to fly out on this day can be as low as £728. Be sure to avoid booking your departure on a Wednesday as prices are generally higher than usual. According to our data, the average ticket price to Southeast Asia on Wednesday is £1,060.

In the morning is the cheapest time of day to fly from Sydney to Southeast Asia when you can find flight prices for as low as £795. Flying to Southeast Asia in the morning is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the afternoon because they tend to be around £1,270. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Sydney Kingsford Smith to Singapore Changi for the best Sydney Kingsford Smith - Southeast Asia flight prices

You are more likely to see cheaper flights to Southeast Asia from Sydney when booking weeks ahead of your departure date. In general, you can expect to find flights to Southeast Asia for around £514 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Southeast Asia from Sydney for as low as £461 on momondo.

There are 4 cabin classes available to choose from on Sydney Kingsford Smith to Southeast Asia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Jetstar, Batik Air, and AirAsia X are the most popular carriers operating from Sydney Kingsford Smith to Southeast Asia

Scoot, Cebu Pacific and China Southern are the top three most popular airlines that fly to Southeast Asia from Sydney according to our data. Scoot is the first choice among our users, with 37% of people opting to fly with this airline when travelling to Southeast Asia. Keep in mind that there are 10 different airlines that fly to Southeast Asia on a routine basis, so you have a few additional options to choose from.

As of March 2026, there are 123 flights per day flying from Sydney to Southeast Asia. The most common time of day flights depart is 16:00, with 49% of flights taking off in the afternoon.

866 flights are operational weekly from Sydney to Southeast Asia as of March 2026. The most popular departure day for this route is Sat, with 15% of flights per week taking off on this day.