Budget airline easyJet has revealed the impact of recent terrorist attacks in Paris and Egypt as bookings dropped in the wake of the atrocities.

The carrier said that sales were hit at the end of last year as some passengers stayed away following the attacks, which left revenues per seat 3.7% lower over its first quarter to December 31.

November's deadly attacks in Paris knocked around 2% off revenues per seat in the quarter, while the suspension of flights on routes to the popular Egyptian tourist destination of Sharm El Sheikh following the Russian airliner crash reduced revenues by another 1.5%, it said.

Overall revenues fell 0.1% to £930 million in the quarter.

But the group said bookings for the second quarter were now bouncing back since the terrorist attacks, while low fuel costs would help cut costs and boost capacity by 8% for its half-year results.

It added that passenger numbers overall rose 8.1% to 16.1 million in its first quarter.

The group also assured that it remains on track with City expectations for annual profits to rise 7.6% to £738 million.

Carolyn McCall, chief executive, said the group would maintain a "relentless focus on cost reduction, which is already delivering".

The group said record-low oil prices were providing a fillip to the company, helping to drive-down the price of fares and helping to boost passenger numbers.

EasyJet, which focuses mainly on western and northern European routes, said last autumn it expected passengers to remain "resilient" and still travel in the aftermath of the terrorist attacks.

But it cancelled flights to Sharm El Sheikh and a UK flight ban was imposed after ISIS claimed to have caused the crash of a Russian passenger jet over the Egyptian region of Sinai in October.

The budget airline group bolstered pre-tax profits by £105 million to £681 million in the 12 months to September last year. It was the fifth straight year of record profits.

It also saw an uplift of four million passengers to 68.6 million over the same period.