Flight

DAL1521 31 Mar 2026

DAL1521, operated by Delta Air Lines, on 31 Mar 2026. Scheduled and actual times are local to each airport (hover for UTC).

← 30 Mar 2026All DAL1521 flights1 Apr 2026 →

Flight

PlaneTrack receiver network
Route? → KSEA SEATTLE TACOMA INTERNATIONAL
StatusCompleted (receiver network)
First seen airborne01:47Z
Last seen21:16 PDT 30 Mar
Duration2h 28m
AircraftN860DN
Max altitude36,000 ft

Punctuality, last 30 days

Flights6
On time1 (17%)
Average delay+34 min
Worst delay+90 min

In the last 30 days DAL1521 departed on time (within 15 minutes) on 1 of 6 flights (17%), with an average departure delay of +34 min and a worst delay of +90 min.

DAL1521 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.