Southwest Airlines Co. has announced the return of its "Companion Pass" offer, which allows the airline's "Rapid Rewards" members to designate a companion who can travel with them for free between August 15 and September 30.  

<div class="block"><a href="http://www.southwest.com/?src=PRPRPRNCPOffer230403" target="_blank">Southwest Airlines Co.</a>&nbsp;has announced the return of its "Companion Pass" offer, which allows the airline's "Rapid Rewards" members to designate a companion who can travel with them for free between August 15 and September 30.&nbsp;&nbsp;</div><div class="block">"Now more than ever, Customers are looking to get the most loyalty value from their purchases," said Jonathan Clarkson, vice president of marketing at Southwest Airlines, in a press release. "We're continuously looking for opportunities to appreciate our Rapid Rewards Members, especially with this unique way to earn the coveted Companion Pass."</div><div class="block">Registration is open through Wednesday, April 5.&nbsp;</div>