฿5,166 Find Cheap Flights from Australia to Southeast Asia – Compare and Save

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KAYAK's insights & trends for flights to Southeast Asia

Get data-powered insights and trends into flights to Southeast Asia to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Southeast Asia?

The cheapest ticket to Southeast Asia from Australia found in the last 5 days was to Bangkok Suvarnabhumi Airport, at ฿6,308 return. The most popular route is Brisbane (BNE) to Bangkok Suvarnabhumi Airport (BKK) and the cheapest return ticket found on this route in the last 5 days was ฿6,308.

What is the cheapest month to fly from Australia to Southeast Asia?

The cheapest month for flights from Australia to Southeast Asia is February, when tickets cost ฿7,207 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is ฿16,717 and ฿12,669 respectively.

What is the cheapest time of day to fly to Southeast Asia?

The cheapest time of day to fly to Southeast Asia is generally at night, when retur flights cost ฿16,115 on average. Morning departures are around 10% cheaper than evening flights, on average. The most expensive time of day to fly to Southeast Asia is generally in the evening, which is peak travel time and where the average cost of a ticket is ฿30,211.

How far in advance should I book a flight from Australia to Southeast Asia?

To get a below-average price on a flight from Australia to Southeast Asia, you should book around 2 weeks before departure, which saves you about 8% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Which is the cheapest airport to fly into in Southeast Asia?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Southeast Asia is Phuket City Airport (HKT), with an average flight price of ฿6,416.

Good to know

Low season

May

Cheapest flight

฿5,166
Best time to beat the crowds (18% less expensive on average)
Most popular time to fly (50% more expensive on average)
Flight from Perth to Phuket City

Flights from Australia to Southeast Asia: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from Australia to Southeast Asia 
AndreaFlew with แควนตัสแอร์เวย์-Jul 2026
Taking the train is easy. If not allow at least 2 hours if it’s a morning flight. Also if you have to pay extra baggage. Ensure it’s paid before you go through immigration. Enjoy!
ScoutFlew with เจ็ทสตาร์-Mar 2026
There will be no internet or phone reception from the moment you start boarding. Send your goodbye messages before boarding. Wish they offered at least free wifi for messaging apps like WhatsApp. This seems to be common in Europe and great to include.
Goh Hua ShengFlew with เตอร์กิชแอร์ไลน์-Feb 2026
early check in at the counter is available just that the downside would be arriving at an odd timing if stopping in singapore.
Verified travelerFlew with แควนตัสแอร์เวย์-Jan 2026
leave time to get to next gate. some are a long walk.
StephenFlew with เจ็ทสตาร์-Jan 2026
Pack light bring snacks and entertainment. It’s just a seat.
RonaldFlew with Philippine Airlines-Jun 2024
- eat before flying. - bring your own entertainment like movies, tv
FrankFlew with Scoot-May 2024
Download movies etc in advance so you don’t reply on WiFi onboard

FAQs for booking flights from Australia to Southeast Asia

  • How does KAYAK find such low prices on flights from Australia to Southeast Asia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Australia to Southeast Asia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Australia to Southeast Asia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Australia to Southeast Asia is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Australia to Southeast Asia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Australia to Southeast Asia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Australia to Southeast Asia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Australia to Southeast Asia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to Southeast Asia?

    Based on KAYAK data, the cheapest day to fly to Southeast Asia is Sunday when return tickets can be as cheap as ฿20,393. On the other hand, the most expensive day to fly is Saturday, when return prices are ฿26,192 on average.

Reviews of the top airlines flying from Australia to Southeast Asia

 
Need help choosing which airline to fly with from Australia to Southeast Asia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.2
Singapore AirlinesOverall score based on 1593 reviews
8.1Entertainment
8.0Comfort
8.3Boarding
7.8Food
8.6Crew
Airline reviews

I had the worst experience of my life in travel. Due to circumstances beyond my control (catastrophic traffic accidents on the highway between Gold Coast and Brisbane) I missed my flight for the first time ever. Because I booked through Kayak Singapore Airlines were not interested in helping me. They told me to contact the agent that I booked through. I was extremely stressed as I had connecting flights in Europe. First Kayak told me that the next available flights were in four days time. Then they told me that they could do it but at a cost of $2600 AUD. When I agreed he told me that he was having trouble getting it through Singapore’s system and he would contact me further once it had been done. When I had not heard from him after several hours, I phoned Kayak again, spoke to a different person who said he could do it for $8200. I declined and told him to cancel the booking. The worst part of this experience was that I had booked 5 flights altogether with Singapore including Premium Economy on two legs and Singapore cancelled all my flights including the return legs leaving me with having to completely reschedule my entire trip. Kayak refunded me $2000 from $5200, obviously leaving me out of pocket. This has left me feeling that I will never deal with Kayak or Singapore Airlines again.

2.0 MediocreJanine, Jul 2026
Read more Singapore Airlines reviews

I had the worst experience of my life in travel. Due to circumstances beyond my control (catastrophic traffic accidents on the highway between Gold Coast and Brisbane) I missed my flight for the first time ever. Because I booked through Kayak Singapore Airlines were not interested in helping me. They told me to contact the agent that I booked through. I was extremely stressed as I had connecting flights in Europe. First Kayak told me that the next available flights were in four days time. Then they told me that they could do it but at a cost of $2600 AUD. When I agreed he told me that he was having trouble getting it through Singapore’s system and he would contact me further once it had been done. When I had not heard from him after several hours, I phoned Kayak again, spoke to a different person who said he could do it for $8200. I declined and told him to cancel the booking. The worst part of this experience was that I had booked 5 flights altogether with Singapore including Premium Economy on two legs and Singapore cancelled all my flights including the return legs leaving me with having to completely reschedule my entire trip. Kayak refunded me $2000 from $5200, obviously leaving me out of pocket. This has left me feeling that I will never deal with Kayak or Singapore Airlines again.

Crew were so busy Anna so awesome. I was in a seat that got my food nearly last but the crew were Just awesome.

Lounge a access was excellent as was the attentiveness and service from the crew as always. The food and drink supplied were of good quality. The entertainment system had a good selection and I liked the mapping system supplied. However the screen wild have been bigger and the operation a little smoother to navigate. The seats were barely comfortable, but adequate.

Headwind delayed our flight which wasn’t the airlines fault

Horrendous. We upgraded and they took the money but cancelled one of our tickets. The recline action didn’t work on the seats for the flight from Singapore to London, pre booked meals but they seemed to have disappeared as well.. Phone customer service was horrendous. Took 5 phone calls and no fix. Craig at the airport was the only one who seemed to be able to get the ticket back.

Food could have been better. Too many passengers getting up and down all the time.

Delayed 1hour due to storm still didn't get window seat for third flight despite paying £240 extra to book them

It was an average flight. I would have expected more from this airline. Food, seats, service, etc was just average. I just give them some extra points for offering free WiFi on board with just a Krisflyer account.

Check in was easy through self-check-in kiosks just like domestic flights. Staff onboard were fantastic. Some "book the cook" good options weren't great, others really good. Entertainment options a bit limited to what I've experienced on Qantas. Overall a good flight though, especially for the price.

Could not really fault anything. We had a really short time between flights (about 45 mins), and had to get across the other side of the terminal. But we made it and crew were helpful. Food was good and service for the kids was great.

A good standard flight, a little delayed, on the return flight, comfortable during cruise hour. The food was tasty, the tea pleasant, standing in the rain, on Launceston tarmac, was stupidity. Just delay the exit from the airplane, don’t have us standing around, while another plane slows its propellers. That’s common sense, but overall comfortable, clean toilet, good legroom, I paid for that, last on, first off, get a front row seat.

Smooth flight with great staff shame about the hard seats

Cabin crew were really good. Flying in to Perth from Adelaide on domestic flight. The arrival for wheel chair use however has no air bridge provided. Unloading meant a scissor lift. Otherwise a good service.

Knees in back from passenger behind, limited seat pockets, no entertainment.

The Ryanair of Australia. Not impressed. Forced me to gate check my bag as it was over their weight limit. Charged me $125 for the privilege. Then said plane hold was locked and it would have to go out in the next flight, which was the following day. Explained that I was on a cruise the next day and the plane would not arrive until after the ship left, and that it would be impossible to catch up with the cruise at any point. Lady at the gate unimpressed. So to sum up they were ready to charge me $125 to lose a bag. Finally got it resolved by appealing to management, but the whole episode was not good for the blood pressure. The gate lady said they followed the Ryanair business model which means first time passengers get penalized for doing things that other airlines routinely allow.

Delayed 50 mins. Check in was excellent, boarding was good, everything else was OK and perfectly acceptable for a budget airline. Price was excellent. I noticed this airline had two other flights to our destination cancelled so not very reliable.

Horrible. The people that get this flights are very sick, dangerous and unhygienic

Jane at Sydney International airport check in was amazing. She set up the whole experience to be a positive one.

The smells on this plane were disgusting. So many sweaty and unhygienic people i couldn't stand it. I dream of being anywhere else in the world when I am on a JetStar flight they suck.

One of the better flights I’ve had w Jetstar. Smooth boarding, early take off, on time landing, very courteous crew, clean plane.

More options for your flight to Southeast Asia

Complete your trip to Southeast Asia with a hotel stay or car hire