It took to X and said: "Passengers are reminded to arrive at the airport two hours before a European flight and three hours before a long haul flight.
Heathrow recommends passengers arrive two hours before any flight within Europe and at least three hours before any longer haul flights.
Similarly to Heathrow, Gatwick airport recommends passengers arrive at least two hours before their scheduled departure time.
Unsurprisingly, Stansted maintains that passengers should arrive at least two hours before flight departure as a general rule.
Passengers are required to arrive at least two hours before scheduled flight departures.