I am flying ATL-LHR-DEL in same ticket ( ATL-LHR in DL and LHR - DEL in VS ) , when I booked it has 2hr45mins layover in LHR but now DL has changed the ATL-LHR flight , so I have only 1hr30 min layover.
Both are in T3 but ATL-LHR has consistently get delayed by 30 mins , so I am very concern , is it doable by 60 mins ?
I have not travelled through LHR recently , but what I remember it used to be long walk before you reach the connection/transfer security point or airside BUS and there is long line in the morning when all the long-haul arrives in LHR.
How is the transit/transfer security lines in T3 now-days , I will be travelling arriving on LHR around 9:30 AM in Friday 10th Nov ?