Flight

UAL3901 3 Oct 2026

UAL3901, operated by United Airlines, on 3 Oct 2026: Seattle Tacoma International (KSEA) to Mc Carran International (KLAS), 2 legs. Scheduled and actual times are local to each airport (hover for UTC).

← 1 Oct 2026All UAL3901 flights4 Oct 2026 →

Leg 1 of 2

FAA SWIM schedule
RouteKSEA SEATTLE TACOMA INTERNATIONAL → KLAS MC CARRAN INTERNATIONAL
StatusCompleted, departure delayed +116 min
Scheduled departure21:45 PDT 2 Oct
Actual departure23:41 PDT 2 Oct delayed +116 min
Actual arrival01:34 PDT
Duration1h 53m
AircraftN17482 B39M
Max altitude40,000 ft
Distance tracked888 nm

Leg 2 of 2

FAA SWIM schedule
RouteKDEN DENVER INTERNATIONAL → KLAX LOS ANGELES INTERNATIONAL
StatusCompleted, departed on time (+7 min)
Scheduled departure17:00 MDT
Actual departure17:07 MDT on time
Actual arrival18:00 PDT
Duration1h 53m
AircraftN27965 B789

Punctuality, last 30 days

Flights2
On time1 (50%)
Average delay+62 min
Worst delay+116 min

In the last 30 days UAL3901 departed on time (within 15 minutes) on 1 of 2 flights (50%), with an average departure delay of +62 min and a worst delay of +116 min.

UAL3901 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.