This comes against the backdrop of rising concerns in various quarters about steep fluctuations in airfares.
'Airlines are free to fix the ticket rates after taking into consideration various factors.'
The country's largest airline IndiGo and Air India have asked passengers to reach Delhi airport at least 3.5 hours prior to domestic departures.
A parliamentary panel on Friday recommended for fixing of an upper limit for the economy class airfares to curb the "exorbitant" air fares during the peak tourist seasons.