Please note that availability on Valentine 's Day itself is extremely limited but other dates are available. Timings will vary and are subject to availability but we will endeavour to meet your requirements. At least 48 hours notice is required to prepare the banner. The price quoted is for a simple banner in the following format: "(name), will you marry me? " Other messages possible but longer notice required and cost will vary. Flights are subject to weather conditions and in the event that the flight is cancelled, you will receive a full refund or the option to rebook. Due to airspace restrictions, it is not possible to fly over Central London, Gatwick, Heathrow or Stansted.