Before you book one or more airline tickets, it is important to answer some questions such as: Which airlines fly to your destination, which airlines offer good service, convenient flight times and/or competitive prices. If you have a clear overview on your possibilities and priorities you can proceed with the booking process of the airline ticket. Nowadays the internet is a common used tool. You can visit the airline website directly or you can visit a website that provides online comparisons for numerous flights and airlines. One of those websites is Expedia.co.uk, one of the biggest leading internet based travel companies in the United Kingdom.