I was wondering, with passenger numbers on NCL-LHR dropping
Can you quantify the drop? What's the % drop rolling 12 months?
Your three weekly idea causes a nightmare around slot usage at the LHR end. LCY becomes an attractive option if numbers are too many for LHR not too few.
If we're being honest you're really asking as a spotter for LCY-NCL? Not likely given the last time when Eastern had a go, and if BA's London traffic is falling out of NCL, they need to keep it all via LHR to make the connection / P2P balance in kilter.