Flight

UAL2121 20 Sep 2026

UAL2121, operated by United Airlines, on 20 Sep 2026: Denver International (KDEN) to Gerald R Ford International (KGRR). Scheduled and actual times are local to each airport (hover for UTC).

← 18 Sep 2026All UAL2121 flights21 Sep 2026 →

Flightestimated

PlaneTrack receiver network
RouteKDEN DENVER INTERNATIONAL → KGRR GERALD R FORD INTERNATIONAL
StatusCompleted (receiver network)
First seen airborne19:57 MDT 19 Sep
Last seen00:01 EDT
Duration2h 03m
AircraftN68821
Max altitude35,000 ft
Distance tracked879 nm

Punctuality, last 30 days

Flights8
On time4 (50%)
Average delay-637 min
Worst delay+413 min

In the last 30 days UAL2121 departed on time (within 15 minutes) on 4 of 8 flights (50%), with an average departure delay of -637 min and a worst delay of +413 min.

UAL2121 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.