DALLAS, June 3, 2013 /PRNewswire/ -- Southwest Airlines (NYSE: LUV) and MGM Resorts International (NYSE: MGM) today launched a strategic marketing alliance between the companies' loyalty rewards programs, Rapid Rewards and M life. Members of both programs now can accrue Rapid Rewards Points toward free flights for qualifying stays at MGM Resorts' Las Vegas properties while enjoying VIP perks during their Vegas vacations. As a special offering to kick off the alliance, members will receive double (1,200) Rapid Rewards Points for all valid reservations* booked between May 31 and June 30, 2013, for future visits to MGM Resorts' participating Las Vegas properties. Members must enroll in both programs to earn benefits, which include 600 Rapid Rewards Points when they stay at one of 12 premier MGM Resorts' properties across Las Vegas, including Bellagio, ARIA, MGM Grand, Mandalay Bay and The Mirage. They'll also enjoy special offers, such as room upgrades and pre-sale concert and fight tickets, access to exclusive M life Moments, and more. Unique to the program, members can accrue both M life Tier Credits and Rapid Rewards Points simultaneously.* "The sky now, quite literally, is the limit for M life members," said Bill Hornbuckle, President & Chief Marketing Officer for MGM Resorts International. "Teaming up with Southwest Airlines provides more experience options and rewards for our members traveling to Las Vegas." "With Southwest Airlines being the largest carrier at McCarran International Airport, it's clear how much our Rapid Rewards Members enjoy visiting Las Vegas," said Jonathan Clarkson, Director of Rapid Rewards at Southwest Airlines. "We're excited that this partnership with MGM Resorts International will now allow Rapid Rewards Members the ability to earn points for stays in nearly half of the rooms on the Las Vegas Strip!" Individuals must be 21 years of age or older and a member of both rewards programs to earn benefits. For further details, please visit mlife.com's Preferred Partners Page. Visit mlife.com or any MGM Resorts' property to enroll in M life; sign up for Rapid Rewards at southwest.com. Southwest's Rapid Rewards Program, with unlimited reward seats, no blackout dates, and points that don't expire**, makes it fast and easy for Members to earn reward flights! That's why Rapid Rewards was recently ranked as having the best reward seat availability of any U.S. carrier*** for the fourth year in a row.