Vietnam AirlinesVN
Flights VN55 varies Mo We Su
live
Direct flights from Hanoi (HAN) to London (LHR): 3 nonstop departures observed each week across 1 airline. The median arrival is 8 minutes late. No cancellations were recorded across the 3 tracked flights. The nonstop covers 9,238 km, an estimated 12 hours 21 minutes in the air. Measured by Pro Flight Search from live flight boards at Hanoi and London. Updated 9 September 2026 at 05:18 UTC.
HAN
Hanoi
busy · +16
LHR
London
smooth · +0
9,238 km · ~12h 21m est.
Running clean · 1 airline · 3x weekly · nonstop
89 / 100
route health from live HAN and LHR delay boards
Median arrival delay is +8 min. 0 of 3 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival+8 minacross the last 3 operated legs
Flight time~12h 21mestimated from route distance
Weekly departures3x1 direct airline on the leg
Who flies it
observed on the boards · 7 daysHistory
operated legs · board outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsWeather lens
Current conditions put the pressure at HAN: 39% odds of a 15+ minute delay and around +3 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the Hanoi to London route actually runs
Pro Flight Search records official board updates for nonstop HAN to LHR flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search — Hanoi (HAN) to London (LHR) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/HAN-LHR
HAN to LHR questions
Is HAN–LHR running on time right now?
Smooth skies ahead. The departure side at HAN is the weaker end, route health score 89/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from HAN to LHR?
Great-circle distance is 9,238 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 682–822 min gate-to-gate on this route.
How often does HAN–LHR fly?
Vietnam Airlines runs the route with about 3 flights a week (sun, mon, wed). Since one carrier owns the route, a single disruption tends to ripple through the day.
What does the route health score measure?
A blend of departure-side delay at HAN and arrival-side delay at LHR, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.
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