answer:Journey planner is the most reliable way to find out what’s working and what isn’t. Make sure you check it as there are often disruptions which, if not planned for, could totally disrupt your plans. journeyplanner If I were you I’d go to Victoria, take the Victoria (blue line) to Oxford Circus, change onto the Bakerloo (brown line) which takes you to Marylebone. You can also take a westbound tube from St Pancras and change at Baker Street, but it’s quite a long way between the platforms and involves a lot of stairs and escalators. London Bridge is miles away, don’t bother with that one. xx