Apparatus

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flight_takeoff Flight

UAL1921

Operated by UAL

Live map

Live map filtered to UAL1921. Shown when the flight is currently airborne.

Route airports View route page →

Departure

SFO KSFO VFR

San Francisco International Airport

San Francisco, US

Local time
13:30 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
13 ft
Coordinates
37.6198, -122.3748

cloud Weather

Wind
230° / 9 kt
Visibility
10 SM
Ceiling
BKN 4,700 ft
Temp / Dew
21°C / 9°C
Altimeter
30.02 inHg

Obs: 2026-09-01T19:56:00.000Z

Raw METAR / TAF 
METAR KSFO 011956Z 23009KT 10SM BKN047 21/09 A3002 RMK AO2 SLP166 T02060094

TAF KSFO 011720Z 0118/0224 26011KT P6SM BKN050 FM021600 18008KT P6SM SCT040

flight Live Traffic

flight_takeoff 275 Departures
flight_land 248 Arrivals

Arrival

ORD KORD VFR

Chicago O'Hare International Airport

Chicago, US

Local time
15:30 CDT
Timezone
America/Chicago
Type
Large Airport
Elevation
680 ft
Coordinates
41.9786, -87.9048

cloud Weather

Wind
240° / 9 kt
Visibility
10 SM
Ceiling
FEW 4,100 ft, FEW 12,000 ft, BKN 30,000 ft
Temp / Dew
34°C / 23°C
Altimeter
29.94 inHg

Obs: 2026-09-01T19:51:00.000Z

Raw METAR / TAF 
METAR KORD 011951Z 24009KT 210V280 10SM FEW041 FEW120 BKN300 34/23 A2994 RMK AO2 SLP130 T03390228

TAF KORD 011720Z 0118/0224 24010G17KT P6SM SCT120 FM020100 22006KT P6SM SCT100 FM021600 24012G20KT P6SM FEW100 FEW300

flight Live Traffic

flight_takeoff 370 Departures
flight_land 419 Arrivals

Recent history last 20

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-25 A12F70 ORD → IAD Jul 25, 16:25 UTCJul 26, 00:10 UTC7h 45m - -
2026-07-18 A4493A ORD → IAD Jul 18, 16:15 UTCJul 19, 00:20 UTC8h 5m - -
2026-07-11 AC0831 - Jul 11, 16:25 UTCJul 11, 23:55 UTC7h 30m - -
2026-07-04 A12F73 - Jul 4, 17:20 UTCJul 4, 19:45 UTC2h 25m - -
2026-06-27 A2BBC6 ORD → PLS Jun 27, 16:22 UTCJun 27, 20:06 UTC3h 44m +31m -12m
2026-06-27 A2BBC6 - Jun 27, 16:35 UTCJun 27, 19:05 UTC2h 30m - -
2026-06-20 A12AA4 ORD → PLS Jun 20, 16:19 UTCJun 20, 18:40 UTC2h 20m - -
2026-06-13 AA7F2A ORD → PLS Jun 13, 16:30 UTCJun 13, 18:45 UTC2h 15m - -
2026-06-06 AA7F08 ORD → PLS Jun 6, 16:24 UTCJun 6, 18:35 UTC2h 10m - -
2026-05-30 A4491C ORD → PLS May 30, 16:20 UTCMay 30, 18:40 UTC2h 20m - -
2026-05-23 A12AE8 ORD → PLS May 23, 16:30 UTCMay 23, 18:15 UTC1h 46m - -
2026-05-23 A12AE8 ORD → PLS May 23, 16:22 UTCMay 23, 19:55 UTC3h 33m +31m -9m
2026-05-16 A449A4 ORD → PLS May 16, 16:41 UTCMay 16, 20:00 UTC3h 19m +50m -17m
2026-05-16 A449A4 ORD → PLS May 16, 16:40 UTCMay 16, 18:20 UTC1h 40m - -
2026-05-09 A2B7F5 ORD → PLS May 9, 16:25 UTCMay 9, 17:55 UTC1h 30m - -
2026-05-02 AA7F06 ORD → PLS May 2, 16:35 UTCMay 2, 18:15 UTC1h 40m - -
2026-05-02 AA7F06 ORD → PLS May 2, 16:22 UTCMay 2, 20:18 UTC3h 56m +31m -8m
2026-04-25 A445F2 ORD → PLS Apr 25, 15:00 UTCApr 25, 17:20 UTC2h 20m - -
2026-04-18 A81001 ORD → PLS Apr 18, 15:03 UTCApr 18, 18:33 UTC3h 30m +37m +2m
2026-04-18 A81001 ORD → PLS Apr 18, 15:00 UTCApr 18, 17:35 UTC2h 35m - -

Performance history

Flights tracked
20
Avg arrival delay
-9m
On-time arrival
100% 100% on time
Aircraft used
15

Monthly activity 4 months

Month Flights tracked
July 2026 4
June 2026 5
May 2026 8
April 2026 3

UAL1921 frequently asked

Where does flight UAL1921 fly?
UAL1921 (UAL) flies from SFO to ORD. View the full route page.
How long is flight UAL1921?
Based on observed flights, UAL1921 takes on average 3h 21m from takeoff to landing.
How often does UAL1921 fly?
UAL1921 has been observed flying several times a week in our tracking data. We've recorded 20 flights under this callsign.
Is flight UAL1921 usually on time?
Across recent flights, UAL1921 arrives 9 minutes early on average. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL1921?
UAL1921 has been operated by 15 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL1921 live?
Yes. When UAL1921 is currently airborne, the live tracker map above shows its real-time position from ADS-B broadcasts. If the map is empty, the flight is not currently in the air.