Exclusive: The cheapest option to Tokyo is just £688 return, but everything about the journey is unappealing Sign up to Simon Calder’s free travel email for expert advice and money-saving discounts Get Simon Calder’s Travel email Get Simon Calder’s Travel email Email * SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our Privacy notice How can you most easily, affordably and interestingly reach Japan for this spring’s cherry blossom season? I have