Ryanair and EasyJet lead the pack of course but there's also FlyBe, Vueling, German Wings, Air Berlin and many, many more. It all depends on where you want to go really.
But one thing many of them share in common are those so-called "hidden costs".
The initial price of the ticket looks like great value.
Only once you start including airport tax, excess baggage charges, the cost of getting to and from an airport which is often miles away from where you actually want to be (The Paris airport which Ryanair uses to "serve" the French capital is actually a good 70 kilometres away) the real "price" you end up paying is far from the original "bargain".
Fascinating Aïda (screenshot from YouTube video)
And that's very much the message behind this hilarious song from the British comedy singing group and satirical cabaret act, Fascinating Aïda.
"Cheap flights" might be a few years old now and contain some rather ribald lyrics for those of you who are faint-hearted (this version comes with subtitles to help you cope with the accent) but it's hysterically funny and - well let's just say - spot on.