LO521 WarsawWAW · 16:00 PraguePRG · 17:15
LO521 by LOT Polish Airlines flies from Warsaw (WAW) to Prague (PRG) for the Fri, Nov 13 departure.
departs WAW · on schedule
board checked 4m ago · checking again in 45s
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at WAW and PRG are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. These figures come from both airports' records 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 →
Tomorrow at Warsaw
ForecastSat 14 Nov, local date
Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
Tomorrow at Prague
ForecastSat 14 Nov, local date
Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Warsaw to Prague flights today
same route · LOT Polish AirlinesIf LO521 is cancelled, these are the other LOT Polish Airlines nonstop flights from Warsaw to Prague on the same day, with scheduled departure times in WAW local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →
How LO521 actually runs
Pro Flight Search has tracked every published board update for LO521 across the WAW and PRG boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 1 completed leg so far: landed +7 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how LO521 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 WAW and PRG published them.
Planning around LO521? 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: LO521 Warsaw to Prague on-time performance, measured from the WAW and PRG airport boards.
https://proflightsearch.com/flight/LO521