Turkey specialist Wings Abroad has ceased all UK ops.
Wings Abroad suspends all UK operations - www.travelweekly.co.uk
This is just the last indipendent firm specialised in Turkey beach holidays who has gone belly up in the last few years, after having seen Scottravel, Goldtrail, H4U all going under.
I think they were mainly using Onur Air for their charter flights, if I am not mistaken.