Daughter studying abroad in Paris begins her return to the States on June 4 in the early evening. She wants to spend a few days in London before flying back. She is staying at a hotel near Heathrow. She will be interested in visiting museums around London and probably trying to get a glimpse of something royal. I would be ever so grateful for recommendations and information about best travel options, both to travel from Paris to London/Heathrow then around London from Heathrow, departing Heathrow June 9. I have been looking at the Brit Rail passes, Eurostar, Easyjet, Megabus, Oyster card, etc and am confused by what is included with which and what is going to be useful for my daughter. She will have two heavy suitcases with her traveling from Paris so wont be interested in anything too strenuous for that leg of the trip. On the other hand, I'm not looking to fly her first class with a porter! Any suggestions?