Laura and Iris are planning a trip to London from December 24-26. They will fly from Bilbao to Heathrow Airport, staying at the Byron Hotel in London. Over their three day trip, they plan to visit several major attractions including the Tower of London, Buckingham Palace, Trafalgar Square, and the British Museum. The total estimated cost of their trip including flights, baggage fees, hotel, and attractions is 665.64 euros.