Which sites are good for February 2020 Lanzarote

Apologies if this has already been discussed on other threads.

Are there any good travel company websites to check online the cost of a 3 or 4 day break in February 2020? Most specify from March.

I guess that is something to do with the climate being iffy until then?

Also if I only wish to go away with my teenager for up to 3 or 4 nights (anything more than that he may start moaning lol) is it doable that month or is it best to pitch for Easter school holidays instead.

It is just I am affected by the winter climate in the UK and could do to have a 3 or 4 day break away somewhere warm that doesn't cost the earth. I am especially interested in the Canaries as I am into volcanoes and think ds will be also.

I doubt a 14 year old teenage boy will enjoy being with just his mum more than 3 or 4 nights away in a February half term!

If not I guess I will have to book us to do that Easter school holidays instead.