My schedule:
DH ORF -> PHL
DH PHL -> YYZ
YYZ -> PHL
DH PHL->DCA
DCA -> ORF
I'm DCA based.
My flight from PHL to YYZ was continuously delayed by 20 mins increments for 7 hours. Boarded, 1 hour until deice/antiice completion. LOB cookie time. Then moderate freezing rain, ramp became nil. Was stuck in the plane until the end of the 3 hour LOB delay where we got a shuttle back to the gate. Now I'm deadheading back to base. Very productive day.