I checked every airline the other night for several airports (no, I don't have a life!) and the cheapest flights were J2 for the ones we can travel from. Flight back was the cheapest too - £80.99. That's the cheapest I have ever seen, and I check their website regularly as you don't need to book extra legroom on their planes, I've never never seen a flight cheaper than what I've just got that return leg for. And they've changed the loyalty scheme! On the plus side, I got a free hold bag so guess that's all ok
