5
/12
Last day to earn triple Amtrak points when traveling between May 6-12 and last day to earn 500 bonus points when taking five qualifying rail trips from March 14 to May 12. Registration required at http//www.AmtrakGuestRewards.com

/15
Last day Southwest Airlines Rapid Rewards members can earn up to 4,000 bonus points by completing eligible partner activity in the Partnerpalooza promotion.

Last day American Express Membership Rewards members can transfer points into Virgin Atlantic Flying Club miles and receive a 25 percent points bonus.

/31
Last day Starwood Preferred Guest members can earn 1,000 bonus points for every Sheraton Club stay when paying with any AMEX card.

Last day Alaska Airlines Mileage Plan members will earn double miles on any Emirates flight.

Last day American AAdvantage members can claim coach award flights to Asia on American Airlines or JAL for 40,000 miles (normally 50,000 miles for an off peak award or 65,000 miles).

Last day American Express Membership Rewards members can transfer points into British Airways Avios points and receive a 50 percent bonus.

Last day Priority Club Rewards members can redeem 5,000 points per night for the latest PointBreaks hotels.