Easyjet Gatwick to Amsterdam out Saturday 10.10am - returning either sun evening or mon morning (if a night stop R&R in the Dam is required

) is curently £49.98.
BA is £66.40 but don't forget you get a leather seat, a hot coffeee and a cold breakfast, and a little bag of pretzels and as much free booze as you can drink. Oh and the outside chance of being treated like a passenger rather than another easyjet "veal". Which might, just, be worth the extra £8 each way.