The operators capitalised on the Christmas rush to increase their fares.
The News Agency of Nigeria (NAN) reports that the air ticket for an hour flight ranged from N30, 000 to N43, 000, depending on the carrier, which was against N18,000 to N30,000 a few days ago.
Officials of some of the airlines said the rush for tickets was more pronounced on Lagos, Enugu, Abuja, Owerri, Calabar and Port Harcourt routes.
The carriers currently operating commercial services in the country are Arik Air, Aero Contractors, IRS Airlines, Med-View Air and Overland.
Findings at the Lagos airports as well as enquiries from airline representatives showed that the average fare on the Lagos-Enugu route, which is less than 45 minutes, was N35, 000 as against N20, 000 about two months ago.
Similarly, the Lagos-Abuja route attracted an average ticket price of N40, 000, which cost about N24, 000 some weeks back.
On the Lagos-Port Harcourt and Lagos-Owerri routes, it costs between N38, 000 and N45,000.
Mr Yakubu Dati, the General Manager, Corporate Communications, Federal Airports Authority of Nigeria, had on December 11, advised Nigerians to make use of passenger service portals.
Dati believed this would help them plan their trips ahead in order to avoid last-minute stress.
He said the platforms empowered passengers with tools to make the travelling experience seamless for them during periods when there was an upsurge in demand for air transports.
Some of the passengers, who spoke to NAN, wondered why fares were always increased during the festive periods.