Delta: Purchase $300 Giftcard, Get $20 Starbucks Giftcard – Doctor Of Credit

only while connected to Delta wifi:

This special offer is only available to SkyMiles Members in-flight while connected to Fast, Free Wi-Fi. Check back on your next eligible flight to purchase. If you are in-flight and are not able to access, please try disconnecting from your VPN or checking your privacy settings. Offer valid through 12/31 or while supplies last. Terms apply.​