London to Ljubljana flights
Flights from London Heathrow (LHR) to Ljubljana Jože Pučnik (LJU) cover 1,235 km. 420 flights flew between them in the last 12 months of UK Civil Aviation Authority figures; 67% were on time across 1 airline.
Both directions together. On time means within 15 minutes of schedule, counted over every scheduled flight to and from the UK airport, including cancelled ones (the CAA's definition).
Airlines on this route
| Airline | Flights | On time | Cancelled | Average delay |
|---|---|---|---|---|
| British Airways | 420 | 67% | 0.5% | 18 min |
Month by month
Over the last 7 months, London and Ljubljana ran best in April 2026 (91.7% on time) and worst in June 2026 (48.6%).
See the figures
| Month | On time | Cancelled | Flights |
|---|---|---|---|
| August 2025 | 68% | 0% | 72 |
| September 2025 | 55% | 0% | 66 |
| October 2025 | 87% | 0% | 30 |
| March 2026 | 75% | 0% | 4 |
| April 2026 | 92% | 0% | 36 |
| May 2026 | 67% | 0% | 64 |
| June 2026 | 49% | 2.9% | 70 |
| July 2026 | 72% | 0% | 78 |
Source: UK Civil Aviation Authority punctuality statistics, August 2025 to July 2026. Contains UK Civil Aviation Authority data. Figures describe the past and do not predict a future flight.
Questions and answers
- How often are flights between London and Ljubljana on time?
- 66.7% of 420 flights were on time (within 15 minutes) over the last 12 months of UK Civil Aviation Authority figures, and 0.5% were cancelled.
- What is the best month to fly between London and Ljubljana?
- Over the last 7 months, London and Ljubljana ran best in April 2026 (91.7% on time) and worst in June 2026 (48.6%).
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