If you've recently flown from Melbourne to Sydney, count yourself as one of the 6.9 million reasons why this short trip ranks as the fifth busiest airline route in the world.
But don't launch into a patriotic chant of "Aussie Aussie Aussie, oi oi oi!" just yet – the Melbourne-Sydney corridor used to sit in fourth place, but has been overtaken by Beijing-Shanghai's 7.2 million passengers, according to a survey conducted by Amadeus Air Traffic Travel Intelligence.
Topping the charts is South Korea's domestic route between Seoul and Jeju, the largest volcanic island in South Korea. That makes it a popular tourist destination, enough to see just over 10 million travellers in 2012.
Next is Sapporo-Tokyo (8.2 million passengers) and Rio de Janeiro-Sao Paulo (7.7 million passengers).
The first international route on the list is Hong Kong-Taipei, in eighth place with 5.5 million passengers .
Tellingly, Asian countries make up seven of the world's ten busiest routes: the exceptions being our own Melbourne-Sydney, Brazil's Rio de Janeiro-Sao Paulo and South Africa's Cape Town-Johannesburg.
The survey also reveals that 22% of all global air travel is concentrated on just 300 ‘super routes,' each of which carry over 1 million passengers per year.
To gain a very real sense of just how busy the skies above us are, check out this amazing video showing all commercial flights around the world in a 24 hour period, compressed into little more than one minute!
The video simulation was cooked up by boffins at the Zurich School of Applied Sciences using data drawn from FlightStats.
The flights appear like bee swarms as they head towards major destinations.
You can see air traffic peak, taper off and pick up again as day changes to night – watch for those flights racing the sun to hit an early morning arrival into Australia, the west coat of the USA and Europe.
(You'll also spot some flights seemingly travelling at warp-speed near the top of the map, most noticeably heading in from the right-hand side close to the 1.05 mark. While those aircraft appear to make the Concorde look like a Sopwith Camel, their speed is exaggerated because they're crossing the Arctic Circle – a 3D area that's distorted on this 2D map.)