We've scanned every flight from Toulouse to London to find the best deals. If you want a cheap flight, it's best to be as flexible as you can on dates. If that day's no good for you, try searching by month to see some alternative dates.
London Gatwick is just one of the airports in London. If you're not set on a specific airport, try changing your search from London Gatwick to London to see a broader range of flights – they might be cheaper.
If you're planning on going to London during this time, you could take a look at other airport options. Or you could try to get a last-minute bargain.