Harold
I just checked Freedom Flights prices for Monday's Excel flight (05:30 from Gatwick) and they are offering a 7-day return for £79. The return time is good as well - leaves Corfu at 11:30.
It just shows that, if you have the nerve to wait for a last-minute deal, you can get some great bargains. When I used to fly, I was always too worried that I would never be able to find what I wanted when it came time to book, so I booked 4-5 months in advance - and paid the normal prices, of course.
Stuart