It is available on all British Airways destinations around the world and is valid until December 17 2007; members can use their AirMiles to pay the total price, or use part AirMiles part cash.
Sarah Wood, marketing director at AirMiles, said: "We're always looking for ways to offer our customers unrivalled deals that meet their travel needs and give them genuinely great value.
"This offer does just that and means AirMiles earned on everyday spending go further than ever before. We expect this deal to be hugely popular so if you're one of our 8m members, get in quick so you don't miss out!"
AirMiles can be collected at Tesco, Shell, House of Fraser, Scottish & Southern Energy, Interflora and the online websites for Currys, CD Wow, John Lewis and Carphone Warehouse.