Monarch is increasing its flights to Spain, Portugal and Cyprus in April after seeing a rise in demand this spring.
In addition, the airline is bringing forward the launch of its new scheduled flights to Paphos in Cyprus from May to April.
Additional flights will operate from Gatwick and Manchester throughout April to Lanzarote, Tenerife, Alicante, Malaga, Majorca, Faro and Larnaca.
Managing director Kevin George said: “We have been astonished by the soaring demand for Monarch flights in April, which we believe is being driven by the proximity of Easter to the additional Bank Holiday.
"Bookings for April are already up 49% compared with the same time last year with demand from customers still increasing. The addition of 31,000 extra seats into the timetable for April will cater for this demand."
By Linsey McNeill