Polish air carrier Enter Air (E4/ENT) is operating charter flights from Zagreb to Douala, the biggest city in Cameroon. These charter flights from Zagreb to Africa are operated without a schedule, approxmately once a month, already since July this year. Flights are operated with a Boeing 737-800 with a flight time of more than 6 hours. The last charter flight on this route was on Wednesday, December 16. Return flight was one day later.