Multi-directional, 7 legs, one flight number
Useless trivia...
I don't think I've seen this before: with the new schedule which started this week, WN is using a single flight number for all seven legs an aircraft does daily. The aircraft starts in LAS and ends in PIT, flying in multiple directions to complete its daily mission.
WN0337
LAS-LAX
LAX-SMF
SMF-SEA
SEA-GEG
GEG-SLC
SLC-MDW
MDW-PIT
I wonder if there are any other routings where the same flight number is used across the entire day.