A cheap flight from London - Mumbai will depart from London Heathrow or Gatwick and takes between 9 and 17 hours, depending on which airline you choose. The majority of London - Mumbai flights have a stopover in a destination such as Dubai, Istanbul or Abu Dhabi. Airlines serving the London - Mumbai route include, Emirates, Turkish Airlines and Aer Lingus, with British Airways offering a direct flight between London and Mumbai from Heathrow. Compare options online with our price comparison tool in order to find the best flight offers from London - Mumbai. Travel from central London to Heathrow or Gatwick airport is straightforward. Buses and trains offer efficient transfers and taxis, cars and minivans can all be pre-booked online. A private transfer at Mumbai Airport means a hassle-free journey to your hotel so it is worth booking in advance.