JAL Mileage Bank members can redeem upgrade awards from select economy class fares to premium economy at a 10,000-mile discount on routes between the U.S. and Japan through March 31, 2011. Eligible routes that are available for 10,000 miles per segment include flights between Tokyo and San Francisco, New York, Chicago or Los Angeles in booking classes Y, B, H or K.

Premium economy seating features JAL Sky Shell Seats and 20 percent more room than economy class seating, plus a seat back entertainment system, power outlets, in-flight meals and complimentary champagne and snacks. At the airport, premium economy passengers can enjoy access to the lounge and a separate check-in counter.

You can redeem miles for an upgrade by calling the service center after you have booked your flight in an eligible fare class. Visit http://insideflyerus.wpengine.com/link/?3121 for more information.