By train: Take the shuttle bus from the airport to Luton Airport Parkway station. From there, catch a train to St Pancras. Journey time 45 minutes. For more information and fares see www.firstcapitalconnect.co.uk From Kings Cross/St Pancras take the London Underground (Hammersmith & City, Metropolitan or Circle Lines) to Euston Square. Journey time 5 minutes. Tube fares are considerably cheaper with an Oyster Card - see www.tfl.gov.uk/oyster)