Delta Comfort Plus seats are located behind first class on domestic flights and behind Delta Premium Select seats on international planes equipped with multiple cabins.

Delta Comfort+ is not a separate class of service like First Class or Premium Select, but rather a "branded" version of Premium Economy (Main Cabin Plus). It is essentially a seat within the main economy cabin that offers several specific upgrades to the standard coach experience. The most significant benefit is the extra legroom, providing roughly 3 or 4 additional inches of "pitch" compared to a standard seat. Passengers in Comfort+ also receive dedicated overhead bin space, ensuring they don't have to gate-check their bags on crowded flights. On the service side, Comfort+ includes "priority boarding" (usually just after the elite and premium tiers) and upgraded snacks and alcoholic beverages (beer, wine, and spirits) that are complimentary even on domestic routes where they would normally be sold. While the seat itself is identical in width to a standard economy seat, the added pitch and the "soft" service perks position it as an intermediate step for travelers who want more comfort than basic economy but aren't ready to pay the significant premium for a domestic First Class or international Delta One ticket.