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UA2391

DEN → SFO · Boeing 737-300 · United Airlines

For travellers

Departure · Denver (DEN)

Gate B22
Scheduled 03 Oct 07:40 · Departed 03 Oct 07:32 · early
Board status: Off block
Airborne since 03 Oct 07:45 (ADS-B)

Arrival · San Francisco (SFO)

Terminal T3 · Gate F21 · Baggage belt CL-E9
Scheduled 03 Oct 09:21 · Landed 03 Oct 09:07 · early
Board status: Arrived
Landed 03 Oct 10:42 (ADS-B)

Board data from den, sfo, updated 65 min ago; times local to each airport.

Flight

Status
Completed
Arrival confirmed via
ADS-B (callsign change)
Departure
Denver International Airport (DEN) — Denver, United States
Scheduled departure
2026-10-03 13:40 UTC
Departed
2026-10-03 13:45 UTC
Arrival
San Francisco International Airport (SFO) — San Francisco, United States
Scheduled arrival
2026-10-03 16:21 UTC
Estimated arrival
2026-10-03 16:03 UTC
Codeshares
AC3600, CA7229, NH7311, NZ9066, VA8347
Distance flown
1572 km
Straight-line distance
1553 km
Approach distance
72 km

Aircraft

Registration
N57857
Type
Boeing 737-300
Seats
213 total (24 Business, 189 Economy)
CO2 (EMEP est., total)
59.9 t (525 kg/pax Business, 251 kg/pax Economy)

Altitude & speed

Max altitude
30,025 ft
Max ground speed
447 kt
Tracked
3h 57m · 1,565 km
Altitude (ft, max 30,025)
016,21432,4270m30m1h 0m1h 30m2h 0m2h 30m3h 0m3h 30m
Ground speed (kt, max 447)
02414830m30m1h 0m1h 30m2h 0m2h 30m3h 0m3h 30m
Altitude (ft, max 30,025)
016,21432,4270m1h 0m2h 0m3h 0m
Ground speed (kt, max 447)
02414830m1h 0m2h 0m3h 0m

From the ADS-B positions we received; time since the first fix. A dashed stretch is a gap in reception, bridged by a straight line.

Route map

Airline

United Airlines (UAL)

Latest flights

DepartedFlightRouteRegAircraftStatusDistance
2026-10-03 13:45 UTC UAL2391 DEN → SFO
Denver → San Francisco
 N57857 Boeing 737-300 Completed 1572 km
2026-10-02 13:57 UTC UAL2391 DEN → SFO
Denver → San Francisco
 N73860 Boeing 737-300 Completed 1649 km
2026-10-01 13:54 UTC UAL2391 DEN → SFO
Denver → San Francisco
 N57852 Boeing 737-300 Completed 1641 km
2026-09-30 13:58 UTC UAL2391 DEN → SFO
Denver → San Francisco
 N75854 Boeing 737-300 Completed 1664 km
2026-09-29 13:54 UTC UAL2391 DEN → SFO
Denver → San Francisco
 N57857 Boeing 737-300 Completed 1573 km

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