Interesting - I have always sort of claimed that easyjet has a "frequent flyer programme" in their tie-up with Nectar. You can of course both earn and spend Nectar points on easyjet flights: https://eshops.nectar.com/shop-at/easyjet.eshops Certainly I've collected a fair few Nectar points over the years from easyjet flying, and even spent a few on a flight when they were offering a nice little "points back" bonus.
Apparently, they company has trialled the programme over the past 18 months with a limited number of passengers. I understand that Passengers will be invited to join if they have booked or flown 20 or more flights or made a minimum spend over a 12-month period. Expect more details nearer the launch
