First,, thanks to TA for helping plan a wonderful trip to London in 2010. Great advice and incredible city made for a super trip.
New question - ALREADY PURCHASED round-trip tix on Delta from Atlanta to Heathrow; friends have now joined the trip and we've decided to start our journey in Edinburgh. My thought was to train from Heathrow to Edinburgh, but I've checked British Air and am now considering the possibility of a one-way ticket (train back to London). We will arrive LHR at 10:15am- I believe Terminal 4 - with only carryon luggage; how much time should I allow between flights if flying out of Terminal 5 on BA/BMI? This is post-Olympics in late September on a Wednesday. Looking at BA website, it appears that my choices are 11:40 (too risky?), 12:15 (too expensive), 13:20 (my choice), or 15:00. Does the 13:20 flight allow enough time?
Thank you in advance for your help. If you have other overlooked possibilities, I'd love to hear them.