AS5279 LondonLHR San FranciscoSFO · 13:50
AS5279 by Alaska Airlines flies from London (LHR) to San Francisco (SFO) for the Tue, Aug 18 departure.
arrival expected at SFO · 82 min late
board checked 17m ago · checking again in 45s
Where the minutes go
last 5 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The last 30 days
arrival outcome per operationmedian arrival +20 min · 0 cancelled · 5 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at LHR and SFO are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, under conditions like today's, over the last 90 days.
Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →
How AS5279 actually runs
Pro Flight Search has tracked every published board update for AS5279 across the LHR and SFO boards: schedule changes, gate pushes and actual clocks. Usually lands ~20 min late. Based on 5 confirmed landings · 2/5 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how AS5279 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationBoard clocks recorded as LHR and SFO published them.
Planning around AS5279? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — AS5279 London to San Francisco on-time performance, measured from the LHR and SFO airport boards.
https://proflightsearch.com/flight/AS5279
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