IndiGo turned out as the best on-time performance (OTP) carrier with 95.4% at four metro airports in February. At the same time, Go First attained the number two position with 94.1% in the same month. The aviation regulator DGCA study further revealed Vistara, SpiceJet, Air India, AirAsia India and Alliance Air had OTP of 90.9%, 90.9%, 89.8%, 88.5% and 88.5% respectively.