The busiest domestic route in Edinburgh Airport is London-Heathrow while the busiest international route is bound to Amsterdam. Its farthest destination is Newark. It is easily accessible by road, from Glasgow by M8, from Perth by M90 and from Stirling by M9. Lothian Buses can also take passengers to the airport from the city centre. However, there is no direct rail link to it but it is served Edinburg Trams.