I recently tried Delta seat upgrades for a cross-country flight, and it was way easier than I expected. I had initially booked a Main Cabin seat, but I wanted extra legroom and a quieter section. I called 8 8 8-2 1 7-3 3 2 4 to check upgrade options, and the agent walked me through everything—how Medallion status affects upgrade priority, pricing for Comfort+ or First Class, and how to apply it. On travel day, I was pleasantly surprised to see my upgrade confirmed via the app. Later, when my return flight changed, calling the same number made modifying both the booking and the upgrade seamless. From my experience, Delta upgrades are straightforward once you know the rules, and having a direct line really removes the stress.
