Let's be honest, getting upgraded to the pointy end of the plane is the goal of every single traveller on every single plane. No one wants seat 120F located in front of the toilets, adjacent to the pungent kitchen with the emergency landing gear for the entire plane stowed in your seat pocket. Everyone is vying for the unicorn of air travel: the free upgrade.

As for how to get that free upgrade, every frequent flyer and intrepid traveller has a theory or a story about the one time they actually got it. The latest theory doing the rounds comes from Luxurylaunches.com courtesy of a former Qantas flight attendant, Nik Loukas, who says, "If there's a special meal request in your booking, the airline won't even look at you (for an upgrade). Because you've got a dietary requirement and they might not be able to cater for you if they upgrade you." For the plant-loving vegetarian, vegan or even people who turn vego just for air travel (because: mystery airline meat) this translates to no upgrade for you.

According to the Luxury launches piece Qantas and Virgin Atlantic responded with a "that's rubbish" comment which is both good and bad news. Good that your eating preferences are not working against you, but bad because we're still no closer to uncovering the secret formula to securing that free flight upgrade.

It’s not easy being green: why vegetarians don’t get flight upgrades