Virgin Atlantic is offering 25% off select coach award redemptions booked by January 22, 2015. Travel dates are available through the end of 2015.
During the sale, select Transatlantic routes cost between 26,250 & 33,750 miles roundtrip. Each roundtrip ticket is subject to fuel surcharges ranging from $415-$500.
Virgin Atlantic is a 1:1 transfer partner of Chase Ultimate Rewards, American Express Membership Rewards & Starwood Preferred Guest.
You can find a full list of routes, mileage costs, fuel surcharges and the terms on the offer page.
For a full analysis see this View From the Wing post.