Buying a Delta gift card just got more rewarding with the airline’s latest promotion. “Enjoy giving the gift of travel this Mother’s Day with the Delta Gift Card,” the airline shared about the promotion in an email. “For a limited time, buy $300 or more in Delta Gift Cards to earn a $20 Starbucks eGift.” This deal ends on Monday, May 13, at 11:59 p.m. EST, but may be taken down sooner as the offer is only available to the first 7,000 buyers. It's also worth noting that travelers will only receive a $20 Starbucks eGift when purchasing gift cards directly through Delta, not a third-party site.