How to Fly Delta One Lie-Flat Seats on Domestic Routes in September 2026

Delta mostly uses its internationally-configured aircraft, well, on international flights. However, during September 2026, Delta has scheduled widebody aircraft with lie-flat business class seats on 1,330 domestic U.S. flights. That's an average of over 44 flights a day! In this article, we list out (and map) all 31 routes and the exact flights where you'll find these aircraft flying within the U.