How long is flight QF400?

The SYD to MEL route is the basis for the schedule. View the full route forecast and typical duration on the Turbcast route page.

Flight QF400

QF400 Turbulence ForecastQantas · SYD → MEL

About flight QF400

Airline: Qantas (QF)
Route: SYD → MEL
Typical Aircraft: B738
Distance: 705 km
Duration: 1h 25m
Cruise Altitude: FL340

See today’s turbulence forecast

Qantas QF400 flies the short-haul sector from Sydney to Melbourne. Conditions change hour to hour - view the live forecast for your departure date.

View live forecast

Check QF400 on a specific date

Turbulence on the SYD → MEL route

This is a short or low-latitude sector, so clear-air turbulence from upper-level jets is rare. A large portion of the flight crosses open ocean (South Pacific), where upper-level conditions are generally smoother than over continental terrain.

Calmest season: Late spring to early autumn (Nov-Mar). This corridor is most turbulent in the southern winter (Jun-Aug), when the jet stream is strongest and sits closer to the route.

Full SYD to MEL route guide

Frequently asked questions

Is QF400 usually a bumpy flight?

Qantas QF400 operates between SYD and MEL. Whether it’s bumpy depends on the day’s weather - Turbcast pulls live NOAA aviation-grade data so you can check the actual forecast for your departure date rather than relying on averages.

What aircraft does QF400 use?

QF400 is typically operated by the B738. Aircraft swaps happen - confirm with your booking before flying.

How long is the SYD to MEL flight?

Approximately 1h 25m direct, covering 705 km at a typical cruise of FL340.

When does QF400 have the smoothest weather?

Historically calmest during Late spring to early autumn (Nov-Mar). Forecast accuracy improves as you get closer to departure - within 48 hours the NOAA WAFS model is at peak skill.