IndiGo has a market share of 31.6 per cent, followed by Jet Airways-JetLite combine with 21.8 per cent and Air India with 18.3, latest Indian air traffic data showed.
SpiceJet was in the fourth place with a 17.9 per cent market share, GoAir had 9.5 per cent and AirCosta 0.8.
Total passengers ferried by all domestic airlines between January-April grew to 206.99 lakh as against 202.90 lakh during the same period last year, recording a growth of little over two per cent.
IndiGo carried the maximum number of 16.8 lakh passengers, followed by Jet Airways-JetLite combine with 11.62 lakh, Air India (Domestic) 9.74 lakh, SpiceJet 9.5 lakh, GoAir 5.07 lakh and Vijayawada-based new regional airline AirCosta 45,000, the data collected by DGCA showed.
AirCosta, which flies to nine destinations with four aircraft, led in the passenger load factor figures (or average percentage of seats filled per aircraft) with 77.8 per cent, with IndiGo following it at 76.9 per cent, GoAir with 76.1, JetLite with 76 and Air India and SpiceJet with 73.3 each.