"You're really unlikely to get an upgrade unless you're a frequent flyer or pay a premium for your seat," said Ben Payne, former airline worker and Comparetravelinsurance.com.au's travel expert.
"That doesn't stop people trying though. Honeymoons, engagements, birthdays or injuries are probably the most common stories we hear. I've also had influencers try to use their status in exchange for an upgrade. These types of requests are rarely accommodated."
As many as 43 per cent of us are prepared to tell a lie in order to score that free upgrade, according to a recent Comparetravelinsurance.com.au survey.
Now we know that's all for pretty much nothing, but Mr Payne said there were some things passengers could do to increase their chances of a better flight experience.
REQUEST AN EXTRA SEAT
Upgrades may be rare but sometimes flights aren't full, which means there could be a better seat for you somewhere on-board, even in economy.
"Booking systems literally won't let ground staff upgrade a passenger so asking for one is usually pointless. But there's nothing to prevent you from being giving an extra seat or two if the flight isn't full," Mr Payne said.
"This is especially useful when you're on a long-haul flight and want to stretch out and get some good quality sleep."
AIM FOR A SKYBED
Not that many of us would know from experience, but first and business class seats aren't always the most comfortable seats in the house.
"While not all airlines carry them, a skycouch or sleeper seat, which basically converts into a bed, is a game-changer," Mr Payne said.
"For a few extra hundred dollars, you get a row of three seats to yourself or for your travel party. These couches are so comfortable, business-class passengers will often downgrade so they can recline back fully and get some decent rest."
REQUEST A SPECIAL MEAL
Mr Payne revealed a compelling insider's secret about the meals.
"It's a little-known secret that vegetarian, vegan, religious and other special meals are usually fresher and better quality than the standard meals," he said.
"You also get served first which is handy when you're tired and hungry and don't want to run the risk of the airline running out of your meal preference."
It's important to note, however, that if you're upgraded, you may not be given your special meal due to time constraints.
BE POLITE
This goes a long way in the tough airline industry.
"Airline customer service can be stressful so when passengers ignore instructions or just behave poorly it makes the job a lot harder," Mr Payne said.
"Out of common courtesy, always use basic etiquette and treat staff with decency. As a bonus, if a flight is overbooked or oversold, a particularly polite customer may be chosen for an upgrade. It never hurts to be nice."
AT LEAST ASK THE RIGHT PERSON
If you're going to ask about an upgrade anyway, you may as well do it well. Mr Payne said busy travel seasons might actually work in a traveller's favour.
"Once you've checked in it's virtually impossible to get an upgrade due to security purposes," he said.
"When asking for an upgrade, make sure you approach the service desk first, where staff are authorised to make seat changes. During peak travel seasons, gate staff may also be authorised to upgrade you."
