LH423 BostonBOS · 17:45 Frankfurt am MainFRA · 06:50
LH423 by Lufthansa flies from Boston (BOS) to Frankfurt am Main (FRA) for the Sun, Sep 6 departure.
arrived at FRA · on schedule
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at BOS and FRA 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 Boston to Frankfurt am Main flights today
same route · LufthansaIf LH423 is cancelled, this is the other Lufthansa nonstop flight from Boston to Frankfurt am Main 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 LH423 actually runs
Pro Flight Search has tracked every published board update for LH423 across the BOS and FRA boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: landed +21 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how LH423 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: DABYL.
Board clocks recorded as BOS and FRA published them.
Planning around LH423? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — LH423 Boston to Frankfurt am Main on-time performance, measured from the BOS and FRA airport boards.
https://proflightsearch.com/flight/LH423
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