Screaming children are the worst aspect of air travel for almost 68 percent of passengers, a new survey has revealed.

According to the flight etiquette survey by the survey by the travel deals website, passengers would not be bothered if a couple decided to join the mile high club on their flight, with three out of four moving to another toilet if they saw a couple entering a cubicle together.

Only eight per cent would complain to a flight attendant, reported.The Travelzoo Australia survey, which took into consideration nearly 2,500 people, revealed that almost 94 per cent of respondents think it is OK to breastfeed on a plane and 67 per cent thought it was fine to take shoes off.

Bringing hot takeaway food on a flight was another turn off, with eight in ten saying that it was unacceptable.