As of 2026, Delta eCredits cannot be used directly as a form of payment for a full Delta Vacations package. eCredits are strictly limited to the purchase of the airfare portion of a flight and the associated taxes and fees. Delta Vacations is technically a separate entity, and their booking system does not currently integrate with the individual eCredit vouchers stored in a SkyMiles account. If you want to use your credit, you must book your flights separately through the main Delta website or app. However, there is a "pro" workaround: you can book your flights using up to five combined eCredits and then book your hotel and car rental independently. This often allows for more flexibility, although you miss out on the specific "bundle" discounts offered by Delta Vacations. For 2026, Delta has signaled plans to improve the flexibility of their credits, so it is always worth checking the "Terms and Conditions" on the delta.com/redeem page to see if any new "Flight + Hotel" redemption options have finally been authorized.