Over 1,500 complaints of deficiency in services were filed by passengers against domestic airlines in the month of May, with the largest being against Jet Airways, according to data released by Directorate General of Civil Aviation.

During May, a total of 1,549 passenger related complaints had been received by the scheduled domestic airlines, it said.

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3.7 complaints per 10,000 passengers were against SpiceJet, while 3.6 against JetLite, 2.6 against Go Air and IndiGo, 2.2 against Paramount and 1.7 complaints per 10,000 passengers were against Kingfisher Airlines, the data showed.

In May, about 1.9 per cent of the total scheduled flights remained cancelled due various reasons-- operational, technical, commercial, weather and miscellaneous.

Paramount witnessed the largest number of cancellation at 7.5 per cent of flights. It was followed by Air India with 4.4 per cent. JetLite cancelled 4 per cent, Jet Airways 1.5 per cent, Kingfisher 1.1, SpiceJet 0.5 and IndiGo and GoAir had cancelled just 0.1 per cent of their flights, the data showed.

Domestic scheduled airlines managed to maintain an On Time Performance (OTP) of about 81.4 per cent during the month of May, with JetLite achieving an OTP of 89.9 per cent, followed by Jet Airways with 88.9 per cent and Paramount with 88.6 per cent.

Other airlines, like IndiGo, Kingfisher, GoAir, managed to maintain an OTP of 85.1 per cent, 84.6 and 81.3 per cent respectively, while SpiceJet had 79.6 per cent. The national carrier was at the last sport with an OTP of 66.4 per cent.

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