Sydney to Hanoi
Sydney to Hanoi is cheapest in February. September, the most expensive month we measured, costs about 729 € more.
Sydney to Hanoi is 7,790 km flown direct. Every fare we measured came from VN.
That comes from pricing 179 departure dates across 7 months. Every figure below is a fare we measured on the day shown, not a live quote. When we have nothing fresh to say about a route, its page stops existing.
What is a good price from Sydney to Hanoi?
Anything at or below the quarter mark beats three in four of the 179 one-way fares we measured here. Above the median, wait or move the date.
seen 27 Sep 2026
How far ahead do the cheap fares sit?
When we measured, the cheapest quarter of fares sat between 130 and 154 days before departure, noticeably further out than the rest of the market. If you can look a few months ahead, that is where the cheap seats are sitting.
a snapshot of where the cheap seats sat, seen 27 Sep 2026
Which day of the week is cheapest?
On average, Thursday departures came out lowest and Saturday highest, a spread of about 46 €. The day matters less than the month here: pick the month first, then the day.