How often are flights between London and Sao Paulo on time?

76.4% of 1,455 flights were on time (within 15 minutes) over the last 12 months of UK Civil Aviation Authority figures, and 0.5% were cancelled.

Which airline is most punctual between London and Sao Paulo?

British Airways, with 80.1% on time. LAN Airlines was the least punctual at 72.6%.

LHR to GRU

London to Sao Paulo flights

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

Flights from London Heathrow (LHR) to Sao Paulo (GRU) cover 9,460 km. 1,455 flights flew between them in the last 12 months of UK Civil Aviation Authority figures; 76% were on time across 2 airlines.

1,455

flights, August 2025 to July 2026

76%

on time (within 15 min)

0.5%

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
LAN Airlines	730	73%	0.4%	14 min
British Airways	725	80%	0.6%	20 min

Month by month

Over the last 12 months, London and Sao Paulo ran best in July 2026 (83.7% on time) and worst in February 2026 (67.6%).

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	81%	0%	124
September 2025	69%	1.7%	118
October 2025	74%	1.6%	124
November 2025	77%	0%	120
December 2025	69%	0%	124
January 2026	71%	0%	124
February 2026	68%	0.9%	111
March 2026	78%	1.6%	123
April 2026	79%	0%	120
May 2026	82%	0%	124
June 2026	83%	0%	120
July 2026	84%	0%	123

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 Sao Paulo on time?: 76.4% of 1,455 flights were on time (within 15 minutes) over the last 12 months of UK Civil Aviation Authority figures, and 0.5% were cancelled.
Which airline is most punctual between London and Sao Paulo?: British Airways, with 80.1% on time. LAN Airlines was the least punctual at 72.6%.
What is the best month to fly between London and Sao Paulo?: Over the last 12 months, London and Sao Paulo ran best in July 2026 (83.7% on time) and worst in February 2026 (67.6%).

Flying London to Sao Paulo soon?

Forward your booking and TripStow builds your trip, reminds you when check-in opens and shows how your flight usually runs. Free.

Start free