UAL990 is operated by UNITED AIRLINES INC between San Francisco International Airport (KSFO) and Calgary International Airport (CYYC). The flight is most often flown by a BOEING Boeing 777-200. Typical block time is 2h 31m. SkyMeter has observed 92 legs of this flight number via ADS-B.

✈
FLIGHTS
92
last 90 days
⏱
AVG DURATION
2h 31m
tracked time
📅
SERVICE PERIOD
04/11/2026 → 06/03/2026
first → last seen
🗺
ROUTES / TYPES
6 / 2
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

3
KSFO → CYYC
1
avg 2h 47m · San Francisco → Calgary
CYYC → KSFO
1
avg 5h 1m · Calgary → San Francisco
KSFO → LFPG
1
avg 10h 39m · San Francisco → Charles de Gaulle

Aircraft types

Equipment used on this number

2
B772 BOEING Boeing 777-200
161
B77W BOEING Boeing 777-300ER
1

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
0
Rejected TO
0
Stall warnings
0
Overspeeds
0
Runway excursion
0
Counts represent flights with at least one occurrence of each flag, not the total event count. See /incidents for individual events.

Recent flights

Newest 30 operations of UAL990

30
N785UABOEING Boeing 777-200
→
06/03/2026
2h 15m
No alerts
Replay Analysis
N797UABOEING Boeing 777-200
→
06/03/2026
1h 41m
No alerts
Replay Analysis
N797UABOEING Boeing 777-200
→
06/03/2026
1h 26m
No alerts
Replay Analysis
N797UABOEING Boeing 777-200
→
06/02/2026
1h 38m
No alerts
Replay Analysis
N797UABOEING Boeing 777-200
→
06/02/2026
3h 5m
No alerts
Replay Analysis
N76010BOEING Boeing 777-200
→
06/02/2026
1h 49m
No alerts
Replay Analysis
N76010BOEING Boeing 777-200
→
06/02/2026
1h 29m
No alerts
Replay Analysis
N76010BOEING Boeing 777-200
→
06/01/2026
1h 30m
No alerts
Replay Analysis
N76010BOEING Boeing 777-200
→
06/01/2026
3h 2m
No alerts
Replay Analysis
N783UABOEING Boeing 777-200
→
06/01/2026
1h 37m
No alerts
Replay Analysis
N783UABOEING Boeing 777-200
→
06/01/2026
2h 37m
No alerts
Replay Analysis
N783UABOEING Boeing 777-200
→
05/31/2026
54m
No alerts
Replay Analysis
N783UABOEING Boeing 777-200
→
05/31/2026
3h 32m
No alerts
Replay Analysis
N78013BOEING Boeing 777-200
→
05/31/2026
2h 8m
No alerts
Replay Analysis
N78013BOEING Boeing 777-200
→
05/31/2026
2h 37m
No alerts
Replay Analysis
N791UABOEING Boeing 777-200
→
05/29/2026
2h 9m
No alerts
Replay Analysis
N226UABOEING Boeing 777-200
→
05/29/2026
1h 46m
No alerts
Replay Analysis
N226UABOEING Boeing 777-200
→
05/29/2026
53m
No alerts
Replay Analysis
N226UABOEING Boeing 777-200
→
05/28/2026
2h 9m
No alerts
Replay Analysis
N226UABOEING Boeing 777-200
→
05/28/2026
3h 4m
No alerts
Replay Analysis
N228UABOEING Boeing 777-200
→
05/28/2026
1h 46m
No alerts
Replay Analysis
N228UABOEING Boeing 777-200
→
05/28/2026
44m
No alerts
Replay Analysis
N791UABOEING Boeing 777-200
→
05/26/2026
2h 20m
No alerts
Replay Analysis
N76021BOEING Boeing 777-200
→
05/26/2026
1h 44m
No alerts
Replay Analysis
N76021BOEING Boeing 777-200
→
05/26/2026
45m
No alerts
Replay Analysis
N76021BOEING Boeing 777-200
→
05/25/2026
3h 32m
No alerts
Replay Analysis
N76021BOEING Boeing 777-200
→
05/25/2026
2h 14m
No alerts
Replay Analysis
N782UABOEING Boeing 777-200
→
05/25/2026
1h 40m
No alerts
Replay Analysis
N782UABOEING Boeing 777-200
→
05/25/2026
2h 21m
No alerts
Replay Analysis
N782UABOEING Boeing 777-200
→
05/24/2026
1h 10m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window