How often are flights between London and Zagreb on time?

62% of 690 flights were on time (within 15 minutes) over the last 12 months of UK Civil Aviation Authority figures, and 0.7% were cancelled.

Which airline is most punctual between London and Zagreb?

British Airways, with 78.7% on time. Croatia Airlines was the least punctual at 44.3%.

LHR to ZAG

London to Zagreb flights

Name: London to Zagreb (LHR-ZAG) flights: on-time record
Creator: TripStow
License: https://tripstow.com/notices

Flights from London Heathrow (LHR) to Zagreb (ZAG) cover 1,368 km. 690 flights flew between them in the last 12 months of UK Civil Aviation Authority figures; 62% were on time across 2 airlines.

690

flights, August 2025 to July 2026

62%

on time (within 15 min)

0.7%

cancelled

+17 min

average delay

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	356	79%	1.4%	11 min
Croatia Airlines	334	44%	0%	23 min

Month by month

Over the last 12 months, London and Zagreb ran best in April 2026 (87.2% on time) and worst in September 2025 (44.4%).

Share of flights on time, by month (UK Civil Aviation Authority). Green is the best month, orange the worst.

See the figures

Month	On time	Cancelled	Flights
August 2025	65%	0%	80
September 2025	44%	1.4%	72
October 2025	55%	0%	66
November 2025	46%	0%	24
December 2025	50%	0%	24
January 2026	53%	0%	34
February 2026	50%	0%	32
March 2026	75%	0%	40
April 2026	87%	0%	86
May 2026	66%	0%	80
June 2026	63%	2.6%	76
July 2026	59%	2.6%	76

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 Zagreb on time?: 62% of 690 flights were on time (within 15 minutes) over the last 12 months of UK Civil Aviation Authority figures, and 0.7% were cancelled.
Which airline is most punctual between London and Zagreb?: British Airways, with 78.7% on time. Croatia Airlines was the least punctual at 44.3%.
What is the best month to fly between London and Zagreb?: Over the last 12 months, London and Zagreb ran best in April 2026 (87.2% on time) and worst in September 2025 (44.4%).

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