1. elapsed time-the time that elapses while some event is occurring. period, period of time, time period-an amount of time; a time period of 30 years; hastened the period of time of his recovery; Picasso's blue period.
With a journey time of 15 minutes between the airport and London Paddington, and departures every 15 minutes, Heathrow Express offers the fastest journey time. 1  Heathrow Express train service between London and Heathrow Airport.  Visit Heathrow Express online:www.heathrowexpress.com.
Alamo London Heathrow Airport. Heathrow Airport is a huge establishment located only 12 miles from Central London, in the London Borough of Hillingdon area. Although there are seven airports in London, Heathrow is only one of three in the Greater London region.