Originally Posted by
BerenErchamion
So for the first time, I'm going to be needing to fly somewhere along with my trombone. It'll be too big to fit in the carry-on bin, so my options are check it or buy a seat; from horror stories I've heard from friends, I'm leaning towards buying a seat.
I wonder if Southwest will let it slide.
If you could be sure the flight would have plenty of empty seats, you would have a chance. This isn't exactly a Customer of Size situation, where you would get a free extra seat. But if you *were* a Customer of Size it might work.