STN → SOFLondon to Sofia

live

Direct flights from London (STN) to Sofia (SOF): 14 nonstop departures observed each week across 1 airline. 87% of the last 15 tracked flights arrived within 15 minutes of schedule. The median arrival is 12 minutes early. No cancellations were recorded across the 16 tracked flights. The nonstop covers 2,012 km, an estimated 3 hours 5 minutes in the air. Measured by Pro Flight Search from live flight boards at London and Sofia. Updated 15 November 2026 at 22:52 UTC.

Today, STN → SOF

Sun 15 Nov · local times
  1. 06:45 FR2690Ryanair Left 06:43 Landed 11:26 −24
  2. 16:30 FR1730Ryanair Left 16:36 +6 Landed 21:19 −16

Checked STN board 22:52 · SOF board 00:37

STN London busy · +15
SOF Sofia smooth · +4
2,012 km · ~3h 05m est.
dep bank 15:45–16:3014x weekly
Runs reliable · 1 airline · 14x weekly · nonstop
87% on time

of the last 15 tracked STN → SOF flights arrived within 15 minutes

Median arrival delay is −12 min. 0 of 16 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−12 minacross the last 15 arrivals
Flight time~3h 05mestimated from route distance
Weekly departures14x1 direct airline on the leg
Cancelled0.0%recent route rate · 0 of 16

Who flies it

observed on the boards · 7 days
RyanairFR87% on time

Flights FR8515 varies Mo Sa · FR1730 varies Mo Tu We Th Fr Su · FR2690 varies Mo We Th Fr Sa Su

History

operated legs · board outcomes
11-15FR1730dep +6 → arr−16
11-15FR2690dep −2 → arr−24
11-14FR2690dep −2 → arr−23
11-14FR8515dep −4 → arr−6
11-13FR1730dep −3 → arr−23
11-13FR2690departed+2
11-12FR1730dep −4 → arr−17
11-12FR2690dep −5 → arr−5
11-11FR1730dep −4 → arr−5
11-11FR2690dep −4 → arr−12
11-10FR1730dep +3 → arr−19
11-09FR1730dep +66 → arr+49
11-09FR2690dep +13 → arr−2
11-09FR8515dep +0 → arr−23
11-08FR1730dep +28 → arr+23
11-08FR2690dep −6 → arr−6

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
STNLondon +15 min busy 🌫 overcast · WNW 7 kt Full STN delay board →
SOFSofia +4 min smooth 🌤 overcast · ESE 12 kt Full SOF delay board →

Weather lens

Conditions are tightest at STN: a 44% chance of a 15+ minute delay. In this weather, the more delayed of the two airports is typically about +13 min. Both figures come from the two airports' delay records in similar weather. See live delays → · Weather risk by airport →

How the London to Sofia route actually runs

Pro Flight Search records official board updates for nonstop STN to SOF flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.

Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search: London (STN) to Sofia (SOF) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/STN-SOF
How we measure this →

STN to SOF questions

Is STN–SOF running on time right now?

Mostly on schedule. The departure side at STN is the weaker end, route health score 68/100. The airports section above carries the live status and delay window at both ends.

How long is the flight from STN to SOF?

Great-circle distance is 2,012 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 172–202 min gate-to-gate on this route.

How often does STN–SOF fly?

Ryanair runs the route with about 14 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.

What does the route health score measure?

A blend of departure-side delay at STN and arrival-side delay at SOF, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.