From the Airport
Heathrow: the Heathrow Express takes 15 minutes to Paddington. Take the Circle  line tube (towards High Street Kensington) to Victoria. Alternatively take the Bakerloo line (southbound) to Oxford Circus, change onto the Victoria line (southbound) to Victoria.
Gatwick: The Gatwick Express runs every 15 minutes to Victoria station, journey time approx. 30 minutes.

City airport: Take the DLR (docklands light railway) towards Bank (westbound) to Canning Town, change onto the Jubilee line (westbound) to Westminster, change onto the District or Circle line (westbound) to Victoria

By train/tube
The nearest mainline station is Victoria. Take the exit marked Victoria Street. Continue east along Victoria Street, turn left into Palace Street.

The nearest tube station is Victoria. Take the exit marked Victoria Street and proceed on foot as above.

Eurostar: From the Eurostar terminal at King's Cross St Pancras take the Victoria line tube (westbound) to Victoria.