Jet2, Ryanair, Easyjet, and TUI passengers could be banned from boarding their flights due to a strict “outfit rule”.

A flight attendant has explained why certain sartorial choices might see holidaymakers turned away at the gate.

Mary Jo Manzanares, who boasts 33 years of experience as a flight attendant and now pens travel articles, disclosed to CNN Travel the specific reasons why particular garments could result in passengers being refused entry onto their eagerly anticipated summer getaways.

She explained: “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.

“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 Birmingham Live.

She added: “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.”

Therefore, holidaymakers should avoid t-shirts and jumpers with “offensive logos or swear words” when travelling this summer. 

While most airlines don’t provide official dress code guidelines, it’s generally best to avoid wearing dirty or torn clothes, overly casual outfits, or any clothing featuring potentially offensive slogans or crude language.

While some airlines may permit flip-flops, others might not allow passengers dressed in beachwear on board.

Moreover, if a destination country has particular laws or customs regarding attire, airlines may expect passengers to comply with these before boarding.