Travellers using Tripadvisor ranked Heathrow alongside Chicago as their worst airport

Heathrow has been voted the world鈥檚 least favourite airport.

It came joint top with Chicago in a survey by travel organisation TripAdvisor.

The poll asked 2,500 travellers to rate 36 airports on how easy they were to navigate, cleanliness of their toilets and the standard of their parking facilities.

Heathrow has come under fire during the past year from political and business leaders, who said the airport shamed London.

The result comes as American Airlines starts a New York service from Stansted and British Airways counties its search for continental slots for transatlantic flights.

Terminal 5 will open next March and is expected to handle 30 million passengers a year.