Best Time to Book Flights from Australia (2026 Guide)
Published 2026-07-01. Reviewed 2026-07-01.
Airfares from Australia swing wildly depending on when you book and when you fly. Book too late and you pay a premium; book too early and you can miss the sweet spot too. This guide breaks down the booking windows that tend to produce the lowest fares for Australian travellers, the cheapest times of year to fly, and how to add a layer of cashback on top of an already-good deal.
How far ahead should you book?
As a rule of thumb, domestic flights within Australia tend to be cheapest booked around 4 to 8 weeks before departure, while international long-haul flights usually reward booking further out — often 3 to 6 months ahead, and longer for peak periods like Christmas and school holidays. Prices are typically highest in the final two weeks before departure, when airlines know remaining seats are being bought by travellers with no flexibility.
The cheapest days and times to fly
Mid-week departures (Tuesday and Wednesday) are frequently cheaper than Friday or Sunday flights, because leisure and business demand both peak around the weekend. Very early morning and late-night flights are usually the least popular and therefore the cheapest. Being flexible by even a single day around a public holiday or school-holiday boundary can cut a fare substantially.
Cheapest months to fly from Australia
For domestic travel, the quietest and cheapest stretches are typically early February to early April and late October to early December, avoiding school holidays and major events. For international trips, shoulder seasons at the destination usually offer the best mix of price and weather. Flying to the Northern Hemisphere during the Australian winter (June to August) is popular and priced accordingly, so consider the shoulder months either side.
Domestic vs international: different rules
Domestic fares in Australia move quickly and often, so setting a price alert and booking when you see a clear dip works well. International fares move more slowly but have a wider range, so patience over several weeks of watching usually pays off. For international trips over holidays, book early — waiting for a sale that may never come can cost more than locking in a fair price months ahead.
Use price alerts and be flexible
Free fare-tracking tools let you watch a route and get notified when the price drops. Flexible date searches (showing a whole month of fares) reveal the cheapest departure and return combinations at a glance. If your dates are fixed, compare nearby airports and consider a one-stop itinerary, which is often meaningfully cheaper than a direct flight.
Add cashback on top of a good fare
A well-timed fare is the biggest saving, but you can add a second layer on top. Many online travel agencies that sell flights are partner stores, so clicking through your free Kick Cashback portal before you book means a percentage of eligible spend is tracked back to you. Direct airline bookings usually pay very low referral commissions, so cashback on flights is often higher through an online travel agency — always compare the total cost, including baggage and seat fees, before deciding.
Frequently asked questions
Is there really a single best day to book flights?
No. The idea of one magic booking day is a myth. What matters more is booking within a sensible window for your trip type (weeks ahead for domestic, months ahead for international peak travel) and staying flexible on your travel dates and times.
Are flights cheaper if I book late?
Rarely. Last-minute bargains exist mainly on routes with unsold capacity, which is unpredictable. For most trips, prices rise in the final two weeks before departure, so waiting is a gamble that usually costs more.
Do I earn more cashback booking flights directly or through a travel site?
Usually through an online travel agency, because airlines pay low referral commissions on direct bookings. But direct bookings can be easier to change or cancel. Weigh the cashback against flexibility and customer service before choosing.