http://www.flybmi.com/bmi/en-gb/offers/flight-offers/try-business-for-economy-offer.aspx?cmp=em20424

This winter we are offering you a chance to travel in luxury and style in Business Class with an economy price tag. For as little as £159 return you can enjoy our full Business Class service on our twice daily flights to Nice.

This price includes complimentary access to our flagship lounge at London Heathrow, up to 30kg of luggage, a guaranteed aisle or window seat, a three-course meal and a choice of drinks. Book from 1 December 2011 – 31 January 2012 for travel up until 29 February 2012 and treat yourself!

Nice is the jewel in the French Riviera, perched on the edge of the Mediterranean, it is known and loved for summer getaways, but with all round appeal, why not escape the crowds with a winter visit? And to think, it could all be yours for a decidedly un-ritzy fare. Book your seat today (or have your valet do it for you).

No one else I can find is matching so far, but not a bad deal if you want to go to Nice in January or February. (645 miles each way)