Deals of the week: Istanbul, Barcelona, Borneo Three nights in Istanbul for £199pp. The Flight Centre deal is valid from 1-23 March, so good weather isn't guaranteed, but the souks and spice market will be as enticing as ever. Includes B&B at the Balin Hotel with Alitalia flights from Heathrow via Rome. Book by 21 Dec. Flightcentre.co.uk For £455pp, you can bag a three-night stay at the five-star W Hotel in Barcelona. The DialAFlight deal is valid for travel from 1 January to 20 February - including departures in time for Valentine's Day. Breakfast isn't included, but BA flights from Heathrow are. Dialaflight.com For £699pp, Travelbag has a week in Borneo. The deal includes B&B at the Beringgis Beach Resort, which overlooks the South China Sea and offers wildlife tours as extras. Flights are with Royal Brunei Airlines from Heathrow to Kota Kinabalu via Brunei. Book by 31 December for travel in March. Travelbag.co.uk