FR1731 SofiaSOF · 05:45 LondonSTN · 07:00
FR1731 by Ryanair flies from Sofia (SOF) to London (STN).
scheduled from SOF
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 +1 min · 0 cancelled · 5 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at SOF and STN 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 Sofia to London flights today
same route · RyanairIf FR1731 is cancelled, these are the other Ryanair nonstop flights from Sofia to London on the same day, with scheduled departure times in SOF local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How FR1731 actually runs
Pro Flight Search has tracked every published board update for FR1731 across the SOF and STN boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 5 confirmed landings · 5/5 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how FR1731 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: SP-RKF.
Board clocks recorded as SOF and STN published them.
Planning around FR1731? 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 — FR1731 Sofia to London on-time performance, measured from the SOF and STN airport boards.
https://proflightsearch.com/flight/FR1731
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