Estimates from the International Society of Women Airline Pilots (ISA) in 2015 suggested that there were about 4,000 women pilots worldwide that's just 3%. Another estimate, by easyJet, puts the balance at 5%, with 6% of its own flying staff female.
Over 37% of FTA’s October intake (on the Integrated Flight Deck Programmes or FDP) were female. If this were any other academic course that statistics would not be so unusual. But with over 94% of pilot jobs held by men, this number suddenly sounds very exciting!