Originally Posted by
MSPeconomist
IMO since the OP is concerned, the 55 connection should be avoided, especially since missing the flight to the Canaries might mean waiting until the next day for a flight to Gran Canaria.
Agreed. OP didn't state, but if this is over the fall/winter period you never know what you get with LHR fog. Even on a connected itinerary you just don't want to chance it- especially with nice lounges in the airport.