7

/12
Last day Continental OnePass debit cardholders will earn miles for debit card purchases.

/15
Last day Continental OnePass and United Mileage Plus members can earn double miles in coach or triple miles in business or first class between Los Angeles and Shanghai. Registration required at http://insideflyerus.wpengine.com/link/?4348 or http://insideflyerus.wpengine.com/link/?4281

/19
Last day Continental OnePass debit cardholders will earn Twice the Miles for online shopping.

/31
Last day Starwood Preferred Guest members can earn a free resort night after completing three stays at Starwood Hotels & Resorts from May 1, 2011.

Last day to earn up to 15,000 bonus miles when flying American Airlines between Chicago (ORD) and Helsinki. Registration required at http://insideflyerus.wpengine.com/link/?4173

Last day Aeroplan members will earn a 500-mile minimum on Air Canada and Star Alliance flights. The new minimum is 250 miles on flights up to 249 miles.

Last day Starwood Preferred Guest members can earn 250 bonus points when checking in via foursquare with a confirmed reservation at any Starwood hotel or resort.