It declined to about 70 per cent compared to around 80 per cent in June, they said.
However on a year-on-year basis, the domestic airlines flew 52.16 lakh passengers in July this year registering a growth of 7.19 per cent over the 48.66 lakh passengers flown during the same period in the previous year, the data released by the Directorate General of Civil Aviation (DGCA) showed.
The month-on-month decline of around ten per cent in passenger traffic was primarily a result of the lean season, coupled with an active monsoon in some parts of the country, official sources said.
The figures showed IndiGo's continued dominance in market share with 30.7 per cent, followed by SpiceJet Ltd at 20.9 per cent, Jet Airways-JetLite combine with 19.6 per cent and Air India at 18 per cent.
While IndiGo flew the maximum number of passengers at 16 lakh in July this year, it was followed by SpiceJet at 10.92 lakh and Air India taking the third spot with 9.40 lakh. Jet Airways carried 8.17 lakh passengers, Go Air flew 4.80 lakh passengers followed by JetLite 2.04 lakh.
The two new airlines, AirAsia India and Air Costa, flew 25,000 and 58,000 passengers and had a market share of 0.5 and 1.1 per cent respectively.
Commenting on his airline's performance, SpiceJet COO Sanjiv Kapoor said the increase in its loads and share was "the result of our new network, improved branding and product and our dynamic pricing and revenue management approach where we believe flying empty seats, which is the ultimate perishable commodity, is a waste especially for budget airlines".
"As our first quarter operating results demonstrated, our increase in loads this year has not been at the expense of yields," Kapoor added.