Both Greek Jet2 routes ex NCL are operated by based 757 equipment. Correct me if I am wrong but strictly speaking they are actually charter flights, with Olympic & Libra Holidays and Thomas Cook taking seats on the service. However, Jet2 also sell a number of seats on each flight. Would be interesting to see how well the LS side of the selling is going. Low cost flight only to small Greek Islands from the regions is a fairly new thing, with only GB/EZY previously operating from LGW.