FI634 BostonBOS · 13:10 ReykjavíkKEF · 22:20
FI634 by Icelandair flies from Boston (BOS) to Reykjavík (KEF).
scheduled from BOS
The route today
live boardsWeather lens
Weather-conditioned outlook for this flight right now
Measured, 90-day sampleDriven mainly by KEF (Reykjavík), currently flying MVFR (marginal visual). 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 Boston to Reykjavík flights today
same route · IcelandairIf FI634 is cancelled, these are the other Icelandair nonstop flights from Boston to Reykjavík on the same day, with scheduled departure times in BOS local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How FI634 actually runs
Pro Flight Search has tracked every published board update for FI634 across the BOS and KEF boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: left heavily delayed (~78 min) but landed heavily delayed (~48 min). Not enough to call it.
The verdict above is that record speaking, so it reflects how FI634 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationAircraft
Recent tails: TF-IAC, TF-IAD.
Board clocks recorded as BOS and KEF published them.
Planning around FI634? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — FI634 Boston to Reykjavík on-time performance, measured from the BOS and KEF airport boards.
https://proflightsearch.com/flight/FI634
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