STN → SOFLondon to Sofia

live

Direct flights from London (STN) to Sofia (SOF): 14 nonstop departures observed each week across 1 airline. 85% of the last 13 tracked flights arrived within 15 minutes of schedule. The median arrival is 6 minutes early. No cancellations were recorded across the 15 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 06:50 UTC.

Today, STN → SOF

Sun 15 Nov · local times
  1. 06:45 FR2690Ryanair Left 06:43 SOF 11:50In the air · scheduled landing

Checked STN board 06:50 · SOF board 08:37

STN London smooth · +0
SOF Sofia smooth · +7
2,012 km · ~3h 05m est.
dep bank 06:00–16:3014x weekly
Runs reliable · 1 airline · 14x weekly · nonstop
85% on time

of the last 13 tracked STN → SOF flights arrived within 15 minutes

Median arrival delay is −6 min. 0 of 15 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−6 minacross the last 13 arrivals
Flight time~3h 05mestimated from route distance
Weekly departures14x1 direct airline on the leg
Cancelled0.0%recent route rate · 0 of 15

Who flies it

observed on the boards · 7 days
RyanairFR85% on time

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

History

operated legs · board outcomes
11-15FR2690departed−2
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 +0 min smooth ⛅ mostly cloudy · SSE 6 kt Full STN delay board →
SOFSofia +7 min smooth 🌤 overcast · ESE 18 kt Full SOF delay board →

Weather lens

Conditions are tightest at STN: a 41% chance of a 15+ minute delay. In this weather, the more delayed of the two airports is typically about +11 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?

Smooth skies ahead. The arrival side at SOF is the weaker end, route health score 94/100. 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.