Anchor text is the visible characters and words that hyperlink display when linking to another document or location on the web.
[url="http://www.dearflight.co.uk/cheap-flights-to-south-africa/johannesburg-jnb.aspx"]Cheap flights to Johannesburg[/url]
[url="http://www.dearflight.co.uk/cheap-flights/any-london-airport-lon/johannesburg-jnb.aspx"]Flights to Johannesburg from London[/url]