I flew 17 Delta segments in January 2019 as a DM. I got F on 16 of them... 13 in advance, 2 at the gate, and 1 due to IROPS.
BOS-MSP (at window)
MSP-BDL (at gate)
BOS-PBI (at window with a companion)
PBI-BOS (at window with a companion)
BOS-JFK (IROPS due to weather, switch from BOS-LGA and cleared at gate on the new flight)
LGA-ATL (at gate)
ATL-MDW (at window)
ORD-ATL (at window)
ATL-BOS (at window)
BOS-DTW (at window)
DTW-MDW (at window)
MDW-ATL (at window)
ATL-BOS (at window)
BOS-ATL (did NOT clear: 6 out of 30 for 2 seats)
ATL-HPN (at window)
HPN-DTW (at window)
DTW-BOS (at window)