Find a good deal on your flight from London to Zanzibar with Netflights. If you want to keep your options open, take a look at flights from another airport in London.
But when you fly is just as important as who you fly with. If you're flexible on dates, try searching by month to see when the cheapest flights are.
Another way to get a cheap flight is to book last minute – but this does mean you may not be able to get the exact flights you want.
Did you know you can also compare hotel and car hire prices in Tanzania with Netflights? Take a look to get an idea of prices in Zanzibar.