How often are flights between London and Istanbul on time?

74.8% of 3,202 flights were on time (within 15 minutes) over the last 12 months of UK Civil Aviation Authority figures, and 0.2% were cancelled.

Which airline is most punctual between London and Istanbul?

Turkish Airlines, with 75.1% on time. Air Bagan was the least punctual at 74.2%.

LGW to ISL

London to Istanbul flights

Name: London to Istanbul (LGW-ISL) flights: on-time record
Creator: TripStow
License: https://tripstow.com/notices

Flights from London Gatwick (LGW) to Istanbul (ISL) cover 2,485 km. 3,202 flights flew between them in the last 12 months of UK Civil Aviation Authority figures; 75% were on time across 2 airlines.

3,202

flights, August 2025 to July 2026

75%

on time (within 15 min)

0.2%

cancelled

+13 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
Turkish Airlines	2,417	75%	0.2%	11 min
Air Bagan	783	74%	0%	17 min

Month by month

Over the last 12 months, London and Istanbul ran best in March 2026 (90.4% on time) and worst in September 2025 (56.9%).

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	69%	0.3%	327
September 2025	57%	0%	318
October 2025	72%	0.3%	323
November 2025	84%	0%	246
December 2025	80%	0%	249
January 2026	59%	0.4%	241
February 2026	78%	0%	214
March 2026	90%	0%	249
April 2026	89%	1%	287
May 2026	83%	0.4%	248
June 2026	69%	0%	232
July 2026	72%	0%	268

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 Istanbul on time?: 74.8% of 3,202 flights were on time (within 15 minutes) over the last 12 months of UK Civil Aviation Authority figures, and 0.2% were cancelled.
Which airline is most punctual between London and Istanbul?: Turkish Airlines, with 75.1% on time. Air Bagan was the least punctual at 74.2%.
What is the best month to fly between London and Istanbul?: Over the last 12 months, London and Istanbul ran best in March 2026 (90.4% on time) and worst in September 2025 (56.9%).

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