My husband and I will be heading from our BnB (near Vauxhall Bridge) to Heathrow on Saturday 8/5 for a 2:30 international flight. It appears to me that the least expensive option is to take the tube all the way (walk to Pimlico Stn, change Picadilly line at Green Park). Rome2Rio also showed a direct bus from Victoria Station. When I searched on tfl.gov, it showed two tube lines to Paddington and then the train (the most expensive route and most compicated).
I'm leaning to the Tube route, but we'll have a large suitcase in additional to backpack carryons. Will that be a problem going by Tube the whole way?
Any other problems (staircases, crowding...)?
Any thoughts appreciated:)