Jet2, Ryanair, TUI, and easyJet holidaymakers might be taken aback this season if they fail to dress suitably for their flights, as an industry insider reveals that sartorial missteps could lead to them being turned away at the gate.

Mary Jo Manzanares, a seasoned aviation professional with more than 30 years of service, who has been featured in CNN Travel, unleashed critical insights into why airlines maintain stringent sartorial policies.

She highlighted the importance of dealing with potential altercations before take-off, stating: “You’ve got to make your priority resolving things on the ground, making sure that there is no aggression.

“When you go to 30,000 feet, you may [have] passenger conversation or banter or inappropriate comments between passengers, add in a little alcohol, and you may be making an unscheduled landing. And no one wants that.”

In tune with Manzanares’ insights, an anonymous cabin crew member confided to The Sun about the enforcement liberties airlines have regarding dress codes.

They said: “We’re well within our rights to prevent people getting on the flight and it’s used frequently for people who aren’t dressed in a way we would deem to be acceptable.”

For those planning to fly with Jet2, Ryanair, TUI, or easyJet, be aware: your choice of attire can significantly impact your journey.

A flight attendant has warned: “There are some obvious examples here, including t-shirts with swear words or offensive logos on them, which people are regularly asked to cover up, or remove, before they get on board,” reports the Mirror.

Although most airlines do not enforce a strict dress code, it’s advisable to avoid dirty, torn clothing or overly casual outfits.

Also unadvised are any clothing items or accessories featuring potentially offensive slogans or vulgar language.

While flip-flops may be a favourite among some travellers, certain airlines may frown upon beachwear on their flights.

And you should also be mindful if you’re travelling to a destination with specific dress laws or cultural norms.

Airlines expect you to dress suitably in accordance with these requirements even before boarding the plane.