Flight

DAL21 9 Dec 2025

DAL21, operated by Delta Air Lines, on 9 Dec 2025: Slave Lake (CYZH) to Seattle Tacoma International (KSEA). Scheduled and actual times are local to each airport (hover for UTC).

← 27 Nov 2025All DAL21 flights10 Dec 2025 →

Flightestimated

PlaneTrack receiver network
RouteCYZH SLAVE LAKE → KSEA SEATTLE TACOMA INTERNATIONAL
StatusCompleted (receiver network)
First seen airborne12:56 MST
Last seen14:42 PST
Duration2h 45m
AircraftN860NW
Max altitude38,000 ft
Distance tracked548 nm

Punctuality, last 30 days

Flights8
On time4 (50%)
Average delay-345 min
Worst delay+35 min

In the last 30 days DAL21 departed on time (within 15 minutes) on 4 of 8 flights (50%), with an average departure delay of -345 min and a worst delay of +35 min.

DAL21 flight history Full history CSV API access

Schedule, departure and arrival times from the FAA SWIM feed; aircraft, altitude and distance from the PlaneTrack receiver network. On time means a departure within 15 minutes of schedule.