When I flew BA some years ago, I seem to remember a need for long layover for connection in LHR due to security and re-checkin.

Looking at some NW connection timing, one of the option through LHR is giving me only 1 hour and 5 minutes to connect from NW flight to KLM flight. Both KLM and NW flight operate out of Terminal 4.

Is the 1 hour connection time really sufficient or should I expect to miss my flight?

Nov 26 NW 106 SEA LHR 2230 1605
Nov 27 KL 1022 LHR AMS 1710 1935
Layover 1 hour and 5 minutes

Nov 30 KL 1025 AMS LHR 1645 1710
Nov 30 NW 105 LHR SEA 1830 2035
Layover 1 hour and 20 minutes

Jiburi