Yes, Delta Air Lines makes a concerted effort to seat families and groups together, though the "guarantee" depends on the fare class you purchase. If you book Main Cabin or above, you can select your seats at the time of booking for free, ensuring your party is together. However, if you purchase a Basic Economy fare, seats are assigned randomly at check-in; in these cases, Delta’s automated system still tries to group travelers on the same reservation, but it is not guaranteed. As of 2026, Delta has implemented an "Enhanced Family Seating" algorithm that identifies bookings with children under the age of 14 and automatically attempts to block adjacent seats for at least one adult in the party, even for Basic Economy tickets. If you find your party split up, the best course of action is to use the "Fly Delta" app or see a gate agent, who can often perform "seat swaps" to accommodate families. For groups of 10 or more, Delta offers a dedicated Group Travel desk to manage block seating and specialized fare arrangements.