I did search sd and didn't find any recent deal posted. taking chance..
Get a one-time $60 statement credit by using your enrolled Card to spend a minimum of $300+ in one or more transactions direct with Delta Air Lines by 7/8/2018. Flight must originate in the U.S. Purchase must be in U.S. dollars. See terms for exclusions.
Enrollment limited. Offer valid for purchases made directly with Delta Air Lines through U.S. delta.com, via Fly Delta U.S. App, and U.S. reservation telephone line. Flights must originate in the U.S., including U.S. territories and purchases must be in U.S. dollars to qualify. Offer valid only for purchases where Delta Air Lines is the merchant of record, such as airfare, fare upgrades, seat selection fees, baggage fees, and Sky Club® memberships. Purchases such as Delta Shuttle® and Delta Vacation® packages are included if purchased through delta.com. Excludes the following: (i) gift cards, (ii) purchases in-person at the airport, lounges, and sales offices, (iii) purchases on-board flights for food, beverage, and WiFi, (iv) stand alone hotel bookings and car rentals through delta.com, (v) purchases through third parties or affiliated agents, and (vi) Delta Cargo, Delta Private Jets® & On Demand Charter services, Delta Flight Museum, SkyMiles® Marketplace purchases, SkyMiles Experiences™, SkyMiles Cruises. Offer is non-transferable. Must first add offer to Card and use same Card to redeem. Limit of 1 statement credit(s) per American Express® online account. Statement credit will appear on your billing statement within 90 days after 7/8/2018, provided that American Express receives information from the merchant about your qualifying purchase. Note that American Express may not receive information about your qualifying purchase from merchant until all items from your qualifying purchase have been provided/shipped by merchant. Statement credit may be reversed if qualifying purchase is returned/cancelled. If American Express does not receive information that identifies your transaction as qualifying for the offer, you will not receive the statement credit. For example, your transaction will not qualify if it is not made directly with the merchant. In addition, in most cases, you may not receive the statement credit if your transaction is made with an electronic wallet or through a third party or if the merchant uses a mobile or wireless card reader to process it. By adding an offer to a Card, you agree that American Express may send you communications about the offer. POID: GB0E:0001