National Bus Company. All tour operators offer an option where a voucher is sent to you by e-mail immediately after purchase which you exchange for tickets on boarding your first bus. Big Bus and Original London Tour offer you a straight discount on the street price by buying from their respective websites in advance.

Retrieved 4 August For all enquiries please e-mail info londonbus4hire. BBC News.

Jouw droomhuwelijk, onze droomzorg! All 3 London sightseeing tour operators are established operators in the London market.