Get ’em while they’re hot! Southwest Airlines gift cards are currently on sale for 10% off at eBay. The $100 Southwest Airlines gift cards will be emailed to your registered PayPal account within 24 hours, and often within a matter of hours. If you have any plans to travel on Southwest in the near future, here is your chance to save a few bucks without much work. Don’t forget that eBay also 2% back on your purchases with eBay Bucks, and you can stack an additional 2% rebate on cashback websites like Mr. Rebates. Factoring in these savings, your $100 Southwest Airlines gift card will cost a net of $86.40 ($10 savings on eBay, $1.80 eBay Bucks, and $1.80 from cashback websites)!