Aer Lingus returned to the top of the Latest OTP ranking
for May 2012, while a massive 42% of Monarch Scheduled flights operated late.
As the busier summer season for airlines began at UK airports, both scheduled and charter flights maintained broadly good punctuality, with on-time performance levels mainly holding steady or improving compared with both the previous month and the long-term average.
Aer Lingus flights had a big lead in OTP at 88.5%, knocking BA CityFlyer into second position for the month with 84.5%, though the latter still held the best year to date OTP at 85.9%.
For the fifth consecutive month Monarch scheduled flights had the worst OTP score of the nine UK airlines we analyse, operating only 57.7% of their services on time during May 2012, around 24 percentage points poorer than the average of all scheduled flights at UK reporting airports.
Overall charter flight punctuality held a very high 80.0% OTP average for the month, nearly 10 percentage points higher than the 3-year May average, airline rankings remaining unchanged with Thomson Airways holding first position with an impressive 83.4% OTP over Thomas Cook (77.3%) and Monarch charter flights (60.6%).