The cheapest way in. Nothing listed is quicker.
DLR, Jubilee and Piccadilly lines to Heathrow
DLRJubileePiccadilly · Transport for LondonPickup, hours & luggage
Boards at. London City Airport DLR station, changing at Canning Town and Green Park
One fare for all three trains: £5.90 by contactless or Oyster at any hour, tapping in at the DLR station and out at Heathrow. A paper single is £7.00. The Elizabeth line station at Heathrow carries a dearer fare, £15.50.
Luggage. No stated limit, but these are Tube trains and the Piccadilly line has no racks.
Hours. From the airport, Monday to Saturday. On Sundays the first is 06:55 and the last about 23:05. Late on Friday and Saturday nights the connections thin out and the wait at Green Park grows.