2 direct trains per hour, taking around 1 hour 15 minutes. Trains leave approx. Journey time is about 10 minutes. OR Take the London Underground Piccadilly Line direct from Heathrow to Kings Cross. If you wish to catch a train which departs from Liverpool Street, change at Holborn and take a Central Line eastbound train to Liverpool Street.
Trains leave approx.
At Victoria Station, change to the London Underground Victoria Line northbound to Kings Cross, or take the Circle Line eastbound to Liverpool Street. There is a train station at the airport which can be reached by escalator or elevator from the airport concourse. You have to go via Bishop's Stortford and then change for the Cambridge train. Alternatively change at Leicester Square and take the Piccadilly Line northbound to Kings Cross. If you wish to travel from Liverpool Street, take the Northern Line to Embankment and change to the Circle Line eastbound, or change at Tottenham Court Road and take the Central Line eastbound to Liverpool Street.