Flights BA249 21:45 daily
Direct flights from London (LHR) to Buenos Aires (EZE): 7 nonstop departures observed each week across 1 airline. 100% of the last 7 operated flights arrived within 15 minutes of schedule. The median arrival is 23 minutes early. No cancellations were recorded across the 7 tracked flights. The nonstop covers 11,137 km, an estimated 14 hours 47 minutes in the air. Measured by Pro Flight Search from live flight boards at London and Buenos Aires. Updated 11 October 2026 at 19:25 UTC.
of the last 7 operated LHR → EZE flights arrived within 15 minutes
Median arrival delay is −23 min. 0 of 7 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
The week
scheduled departures · origin local timeEach 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 EZE: 39% odds of a 15+ minute delay and around +13 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 Buenos Aires route actually runs
Pro Flight Search records official board updates for nonstop LHR to EZE 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
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search — London (LHR) to Buenos Aires (EZE) route reliability, measured from operated flights on official airport boards.
https://proflightsearch.com/search-flights/LHR-EZE
LHR to EZE questions
Is LHR–EZE running on time right now?
Mostly on schedule. The departure side at LHR is the weaker end, route health score 79/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from LHR to EZE?
Great-circle distance is 11,137 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 816–985 min gate-to-gate on this route.
How often does LHR–EZE fly?
British Airways runs the route with about 7 flights a week (daily). 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 EZE, 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.