Delta Air Lines has a formal Family Seating Policy in 2026 designed to ensure that children under the age of 14 are seated next to at least one accompanying adult. To guarantee this, it is highly recommended to book a "Main Cabin" fare rather than "Basic Economy," as the latter does not allow for seat selection. If a family is traveling on a single reservation and finds no adjacent seats available on the seat map, Delta's software is programmed to "unblock" certain rows designated for families during the 24-hour check-in window. If the flight is completely full, gate agents and flight attendants are instructed to facilitate seat swaps to ensure minors are not left alone. However, to avoid the stress of "gate-shuffling," families in 2026 should use the "Fly Delta" app to select seats immediately after booking or contact Delta Reservations to have their records flagged as a family unit.