Cheap flights from Hanoi to Sydney from $252

The month of May is, on average, the cheapest month to fly to Sydney from Hanoi, with most prices found around $577. If you aren’t able to travel to Sydney during the month of May, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $747.

Our data shows that Saturday is the least expensive day to fly to Sydney. Tickets to fly out on this day can be as low as $522. The most expensive day to fly to Sydney is Tuesday, with ticket prices averaging around $1,360.

According to our data, the cheapest time of day to fly to Sydney is in the afternoon. momondo users have found flights departing from Hanoi to Sydney in the afternoon for as low as $583. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $1,195 on average. Flights to Sydney from Hanoi in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

Fly from Hanoi Noibai to Sydney Kingsford Smith for the best Hanoi Noibai - Sydney Kingsford Smith flight prices

You are more likely to see cheaper flights to Sydney from Hanoi when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $895 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Hanoi for as low as $581 on momondo.

There are 3 cabin classes available to choose from on Hanoi Noibai to Sydney Kingsford Smith flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

No. A direct flight is the cheapest option for a flight between Hanoi to Sydney.

As of March 2026, prices for Hanoi to Sydney flights are approximately 11% cheaper when compared to flights at the same time last year.

VietJet Air and Vietnam Airlines are the most popular carriers operating from Hanoi Noibai to Sydney Kingsford Smith

Vietnam Airlines, VietJet Air and China Southern are the top three most popular airlines that fly to Sydney from Hanoi according to our data. Vietnam Airlines is the first choice among our users, with 57% of people opting to fly with this airline when travelling to Sydney. Keep in mind that there are 3 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

Historically, on average around 27% of flights between Hanoi and Sydney have experienced a delay on any given week. The average delay length over the past 12 months has been 171 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Friday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, Vietnam Airlines have had the fewest delays on this route over the last 12 months, with about 27% of their flights experiencing any sort of delay.

Guangzhou (CAN) was the most common stop: 83% of momondo users choosing one-stop flights on this route connected there.

Flights via Guangzhou (CAN) offer the lowest average return price of $680.

Flights connecting via Ho Chi Minh City (SGN) have the shortest average one-way travel time: 14h 05m.

Guangzhou (CAN) has the shortest average stopover time for this route: 2h 59m.