FI451 LondonLHR · 13:05 ReykjavíkKEF · 15:15
FI451 by Icelandair flies from London (LHR) to Reykjavík (KEF) for the Sun, Sep 13 departure.
estimated arrival at KEF · local time · ~67 min from now
board checked 3m ago · checking again in 45s
Board estimate · gate and arrival times. Off blocks 13:39 · typical taxi-out at LHR ≈ 10.8 min.
Where the minutes go
last 7 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 −1 min · 1 cancelled · 15 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at LHR and KEF 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 →
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other London to Reykjavík flights today
same route · IcelandairIf FI451 is cancelled, this is the other Icelandair nonstop flight from London to Reykjavík on the same day, with scheduled departure times in LHR local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How FI451 actually runs
Pro Flight Search has tracked every published board update for FI451 across the LHR and KEF boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 12 confirmed landings · 11/12 within 15 min of schedule. Pushes back late but makes up time in the air.
The verdict above is that record speaking, so it reflects how FI451 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 KEF published them.
Planning around FI451? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — FI451 London to Reykjavík on-time performance, measured from the LHR and KEF airport boards.
https://proflightsearch.com/flight/FI451
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