Use the drop down list to select the mode of transport you'll be travelling by. You'll have the option add multiple 'legs' to the journey if using more than one mode of transport.
Type in the name of the departure airport or the IATA code (3 letter code such as “LHR” for London Heathrow) for the airport.
Type in the name of the arrival/destination airport or the IATA code (3 letter code such as “LHR” for London Heathrow) for the airport.