Vols Hong Kong (HKG) – London (LHR)

Hong Kong to London Heathrow is a 9,680 km Asia-Europe corridor served by exactly two carriers: Cathay Pacific (Hong Kong's home airline, dominant on this pair) and British Airways. Virgin Atlantic withdrew from Hong Kong in 2022 and has not returned, so the supply is constrained — 41 weekly nonstops total. Block time runs 12 hours 30 minutes to 13 hours 5 minutes.

Cathay operates from HKG Terminal 1 with both Airbus A350-1000 and Boeing 777-300ER widebodies, plus a flagship lounge that's a perennial top-10 in industry rankings. British Airways uses Hong Kong's gate cluster 40s and arrives at LHR Terminal 5. The schedule from Hong Kong is overwhelmingly evening-departure (22:00–00:30 HKG, landing LHR 05:00–07:30 local) — the classic Asia-Europe overnight letting you sleep westbound and wake into a London morning.

For connection-onwards: Cathay's HKG hub bank between 05:00 and 09:00 local feeds nearly every Asian capital from Tokyo to Manila, so a single ticket from London to anywhere in Asia is realistic. Avoid HKG transit times under 90 minutes when crossing terminals — the airport is large and the train between concourses adds 8 minutes.