Connecting from LHR T4 to T5
I'm flying from Bangalore to Heathrow via Mumbai on Kingfisher for work purposes. On arriving, with it being the Bank Holiday weekend, I wanted to head up North to visit my parents in Newcastle, so was looking at what options were available.
The IT flight from Mumbai arrives at T4 at 17:50, and the BA flight I'm looking at leaves at 21:00 from T5.
1. Would this allow enough time to claim my baggage, transfer terminals, and meet the 35 min security rule at T5?
2. Would IT check my bag through to NCL, even though the LHR-NCL flight is on a separate ticket. Even if so, is this a wise idea?