Emirates Skywards members can earn bonus Skywards miles for roundtrip travel through May 31, 2014, throughout the U.S. and Mexico on Virgin America.

Skywards members must first register for the promotion at http://insideflyerus.wpengine.com/link/?11245 and travel must be complete by May 31, 2014. Main cabin roundtrip flights in N, S and L booking classes will earn one mile per mile flown; I, M, U, E, H, B and V booking classes earn two miles per mile flown; Y (full, refundable fare) earn 2.5 miles per mile flown. Main cabin select in Z, Q and W booking classes earn three miles per mile flown and first class, in D, C and J booking classes, will get four miles per mile flown.

Skywards members will earn additional bonus Skywards miles based on their membership tier: Platinum will get 175 percent bonus miles; Gold, 150 percent bonus miles; Silver, 125 percent bonus miles and Blue (non-elite members) will get 100 percent bonus miles.