The month of May is, on average, the cheapest month to fly to Hanoi from Australia, with most prices found around $713. If you aren’t able to travel to Hanoi during the month of May, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $727.
You are more likely to see cheaper flights to Hanoi from Australia when booking 39 days ahead of your departure date. In general, you can expect to find flights to Hanoi for around $838 when searching 39 days out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Hanoi from Australia for as low as $492 on momondo.
The cheapest day to depart from Australia to Hanoi is on a Friday. Travellers who choose to depart for Hanoi on a Friday will often find tickets for as low as $822. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Australia to Hanoi for around $903.
The cheapest time of day to fly to Hanoi is at midday when flights can be purchased for as low as $782. In the morning is when there is more demand to fly to Hanoi, so prices are often more expensive at around $907 per ticket.