My longest RJ segment was XNA-LAX nonstop, 1371 miles, and over 3 hour block time. An interesting side note was that Air Force One was at XNA when we were there (although it wasn't officially designated Air Force One for that flight). It was early in the Bush administration, and he lent it to Ex-President Clinton to fly to the dedication (or possibly cornerstone-laying) of his presidential library. A 747 on the tarmac at XNA looked pretty large. Our flight left 25 minutes early, as all the passengers were at the gate and could get on, and they were about to close the airport to takeoffs and landings for an hour so Clinton could leave, so we either left early or late.