British AirwaysBA
Flights BA251 21:55 Mo Th Sa
live
Direct flights from London (LHR) to Santiago (SCL): 3 nonstop departures observed each week across 1 airline. The median arrival is 27 minutes late. No cancellations were recorded across the 3 tracked flights. The nonstop covers 11,654 km, an estimated 15 hours 26 minutes in the air. Measured by Pro Flight Search from live flight boards at London and Santiago. Updated 17 August 2026 at 23:10 UTC.
LHR
London
busy · +22
SCL
Santiago
smooth · +0
11,654 km · ~15h 26m est.
Running clean · 1 airline · 3x weekly · nonstop
85 / 100
route health from live LHR and SCL delay boards
Median arrival delay is +27 min. 0 of 3 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Search live fares for this route →Median arrival+27 minacross the last 3 operated legs
Flight time~15h 26mestimated from route distance
Weekly departures3x1 direct airline on the leg
Current nonstop fares
LHR → SCL · one way · economy · 1 adult
TodayChecking…Direct airline fares
TomorrowChecking…Direct airline fares
In one weekChecking…Direct airline fares
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
British Airways
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
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 SCL: 37% odds of a 15+ minute delay and around +1 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 London to Santiago route actually runs
Pro Flight Search tracks every published board update for nonstop LHR to SCL flights: 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. Fares link straight to the operating airline with no markups.
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 — London (LHR) to Santiago (SCL) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/LHR-SCL
LHR to SCL questions
Is LHR–SCL running on time right now?
Smooth skies ahead. The departure side at LHR is the weaker end, route health score 85/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from LHR to SCL?
Great-circle distance is 11,654 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 853–1029 min gate-to-gate on this route.
How often does LHR–SCL fly?
British Airways runs the route with about 3 flights a week (mon, thu, sat). 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 LHR and arrival-side delay at SCL, 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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