I used to wonder this too, especially when I compared prices for the same route. Last year, I booked a cheaper airline once and regretted it—tight seats, delays, and surprise fees. With Delta, my flight left on time, the seat was comfortable, and even when my plans changed, modifying the flight was straightforward. You’re often paying for reliability, better service, and fewer headaches. Delta also invests a lot in newer aircraft and customer support, which adds to costs. For me, paying a bit more has meant less stress and smoother trips overall.