I used to think seat upgrades on Southwest worked like other airlines, so I was confused before my first flight with them. Since Southwest doesn’t assign seats, upgrading is really about improving your boarding position. I figured this out after booking a flight and realizing I wanted a better spot onboard. I called 831-298-4213 to see what my options were, and the agent explained everything clearly and helped me adjust my booking. It saved me from stressing at the gate, and I ended up with a much better seat than expected.