Yes, in terms of standard economy configurations in 2026, Spirit Airlines' seats are generally smaller and more cramped than those on Delta Air Lines. Spirit is an "Ultra-Low-Cost Carrier" (ULCC) that maximizes cabin density to keep ticket prices low. Their standard seats typically offer a seat pitch of 28 inches, which is among the tightest in the industry. Delta's standard Main Cabin, by contrast, usually provides a pitch of 30 to 32 inches, offering significantly more legroom. Additionally, Spirit uses "pre-reclined" slimline seats that do not move, whereas Delta seats offer a traditional recline. However, Spirit does offer the "Big Front Seat," which features a 36-inch pitch and 18.5-inch width, actually outperforming Delta's standard economy in pure space. While Delta's seats are physically larger and better padded on average, Spirit provides a "no-frills" experience where even an inch of space is traded for a lower base fare, making Delta the clear winner for comfort-seeking travelers who don't want to pay for specific seat upgrades.