I've just looked at Ryanair's schedules between London / Manchester to the Canary islands.
There are a few flights in the next few days - likely to ensure people can get back home and avoid EU261 penalties - prices look to be priced very cheaply - a four hour flight from Stansted to Lanzarote in 2 days time is being sold for £4 more than APD
After the coming weekend, there are a very small number of flights at half-term in mid-February. I should stress *very small number*.
Otherwise, Ryanair are not returning to the UK - Canary Islands market until the end of March, 10 weeks away
It looks as if Ryanair has very little confidence in what in normal years should be a high demand leisure route during the winter. Ryanair have cancelled almost all flights between the UK and Canary Islands for 10 weeks. I don't believe that Jet2 can magically make a route profitable when rivals see largely red ink