Originally Posted by
TravellingChris
Heathrow is the better option. More onward destinations, particularly long-haul. And ground transport is arguably superior from LHR into central London than from LGW.
LGW is a substitute of LHR, I agree
yet,
Demand to UK is high
In case LHR flights are overbooked, passengers can transfer to LGW flight
LGW has a lower airport tax
LHR doesn't have sufficient slot
that's why airlines consider LGW or even STN