You are able to redeem Rapid Rewards points for anyone so you are able to use your points to purchase Southwest tickets for your wife. Earning points is different. When you fly each traveler earns points in their own Rapid Rewards account so both you and your wife should accrue points in your individual accounts. With your personal credit card you earn points in your account. If your wife signs up for a credit card in her name then the points earned will go to her account. You can't have multiple personal credit cards with different people all accruing points to one Rapid Rewards account. If you have a business then you can accrue points from both your personal card and your business card in your personal Rapid Rewards account.
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