I’ve probably got at least four others, but this one from last summer will do for tonight

evening thunderstorms at DCA meant lots of late arrivals, and lots of morning departures delayed for crew rest ... our original itinerary was an 0700 DCA-ATL-SEA departure with a ~55-min layover ... we were automagically rebooked onto the 0600 that was actually leaving at 0718; of course this also involved our seats being moved from Row 12 on a 738 to Row 33 on a 320, and of course DL kept us on the original connecting flight home

we landed to the west at ATL, back-taxied to our arrival gate at the far end of the F concourse, and blocked in 23 minutes before scheduled departure from the end of the A concourse ... we were very glad that our seats in Row 16 hadn’t been given away when we approached the gate at ~T-5