American Express is running a 15% transfer bonus when you transfer points to Virgin Atlantic from now until February 28, 2011 (US Membership Rewards members only).I personally find Virgin Atlantic to have such ludicrously high redemption fees and taxes, that I think it makes sense to book Virgin Atlantic awards through other American Express partners such as Continental and ANA. However, if you have an existing Virgin flight that you want to upgrade, using Virgin miles may be your only option. In that case, if you are going to transfer anyway, you might as well get the bonus.To check out this promo, log into your www.membershiprewards.com account, Use Points -> AirlinesPromotional Terms and Conditions: Membership Rewards points transfer requests to Virgin Atlantic that occur between 1/3/11 and 2/28/11 will be eligible for the 15% bonus mile offer. To be eligible to receive the bonus Flying Club miles, the Flying Club account must be active and not in default at the time of the bonus fulfilment. To redeem the offer, you must transfer Membership Rewards to your linked Flying Club account between 1/3/11 and 2/28/11. Minimum transfer is 1,000 Membership Rewards points. Bonus miles will be posted to your Flying Club account within 14 days after the transfer. Offer is valid for all US Membership Rewards enrollees and subject to the Terms and Conditions of Virgin Atlantic Flying Club programme. Full details can be found at www.virginatlantic.com/flyingclub. Normal redemption passenger taxes, fees and charges apply to all redemption bookings and are subject to change.Virgin Atlantic Airways operates to London from Boston, Las Vegas, Los Angeles, Miami, Newark, New York City (JFK), Orlando, San Francisco, Washington D.C. (Dulles), Chicago*, Havana, Montego Bay, Kingston, Barbados, Antigua, St Lucia, Grenada and Tobago.Beyond London, Virgin Atlantic flies to Cape Town, Delhi, Hong Kong, Johannesburg, Lagos, Accra, Dubai, Shanghai, Tokyo and Sydney.Sign up for our daily newsletterEmail addressSign upI would like to subscribe to The Points Guy newsletters and special email promotions. The Points Guy will not share or sell your email. See privacy policy.Virgin Flying Club Flying Club: 1-800-365-9500Reservations/Information: Call 1-800-821-5438 or visit Virgin Atlantic.com for additional information.[card card-name=‘The Platinum Card® from American Express’ card-id=‘22504813’ type=‘javascript’ bullet-id=‘1’]