UAL2661

UNITED AIRLINES INC · PHL → SFO

UAL2661 is operated by UNITED AIRLINES INC between Philadelphia International Airport (KPHL) and San Francisco International Airport (KSFO). The flight is most often flown by a BOEING Boeing 737 MAX 9. Typical block time is 3h 23m. SkyMeter has observed 166 legs of this flight number via ADS-B.

✈
FLIGHTS
166
last 90 days
⏱
AVG DURATION
3h 23m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 9/6/2026
first → last seen
🗺
ROUTES / TYPES
9 / 3
city pairs · airframes
⚠
INCIDENT RATE
1.2%
2 flagged

Routes flown

By count · last 90 days

5
KPHL → KSFO
77
avg 5h 33m · Philadelphia → San Francisco
KSFO → KONT
69
avg 1h 29m · San Francisco → Ontario
KHAF → KONT
11
avg 1h 25m · Half Moon Bay → Ontario
US-0188 → KONT
1
avg 1h 54m · Coast Guard Air Station San Francisco → Ontario
KOAK → KONT
1
avg 1h 21m · Metropolitan Oakland → Ontario

Aircraft types

Equipment used on this number

3
B39M BOEING Boeing 737 MAX 9
154
B739 BOEING Boeing 737-900
10
B738 BOEING Boeing 737-800
2

Safety profile

Flagged flights · last 90 days

Go-arounds
2
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 UAL2661

30
N17557BOEING Boeing 737 MAX 9
→
9/6/2026
1h 30m
No alerts
Replay Analysis
N17410BOEING Boeing 737 MAX 9
→
9/5/2026
1h 24m
No alerts
Replay Analysis
N37562BOEING Boeing 737 MAX 9
→
9/4/2026
1h 24m
No alerts
Replay Analysis
N37528BOEING Boeing 737 MAX 9
→
9/4/2026
5h 50m
No alerts
Replay Analysis
N17452BOEING Boeing 737 MAX 9
→
9/3/2026
1h 32m
No alerts
Replay Analysis
N47434BOEING Boeing 737 MAX 9
→
9/2/2026
1h 41m
No alerts
Replay Analysis
N17460BOEING Boeing 737 MAX 9
→
9/2/2026
5h 32m
No alerts
Replay Analysis
N36476BOEING Boeing 737-900
→
9/1/2026
1h 29m
No alerts
Replay Analysis
N77471BOEING Boeing 737 MAX 9
→
8/31/2026
1h 39m
No alerts
Replay Analysis
N17441BOEING Boeing 737 MAX 9
→
8/31/2026
5h 37m
No alerts
Replay Analysis
N17593BOEING Boeing 737 MAX 9
→
8/30/2026
1h 59m
No alerts
Replay Analysis
N17438BOEING Boeing 737 MAX 9
→
8/30/2026
5h 34m
No alerts
Replay Analysis
N77590BOEING Boeing 737 MAX 9
→
8/29/2026
1h 24m
No alerts
Replay Analysis
N47446BOEING Boeing 737 MAX 9
→
8/28/2026
1h 58m
No alerts
Replay Analysis
N47446BOEING Boeing 737 MAX 9
→
8/28/2026
5h 26m
No alerts
Replay Analysis
N17455BOEING Boeing 737 MAX 9
→
8/27/2026
1h 45m
No alerts
Replay Analysis
N37555BOEING Boeing 737 MAX 9
→
8/27/2026
5h 40m
No alerts
Replay Analysis
N47434BOEING Boeing 737 MAX 9
→
8/26/2026
1h 39m
No alerts
Replay Analysis
N47512BOEING Boeing 737 MAX 9
→
8/26/2026
6h 0m
No alerts
Replay Analysis
N17455BOEING Boeing 737 MAX 9
→
8/25/2026
1h 45m
No alerts
Replay Analysis
N17425BOEING Boeing 737 MAX 9
→
8/24/2026
1h 55m
↻ Go-around
Replay Analysis
N77558BOEING Boeing 737 MAX 9
→
8/24/2026
5h 35m
No alerts
Replay Analysis
N17438BOEING Boeing 737 MAX 9
→
8/23/2026
1h 23m
No alerts
Replay Analysis
N47462BOEING Boeing 737 MAX 9
→
8/23/2026
5h 28m
No alerts
Replay Analysis
N17431BOEING Boeing 737 MAX 9
→
8/22/2026
1h 32m
No alerts
Replay Analysis
N37528BOEING Boeing 737 MAX 9
→
8/21/2026
5h 31m
No alerts
Replay Analysis
N77573BOEING Boeing 737 MAX 9
→
8/20/2026
1h 23m
No alerts
Replay Analysis
N17460BOEING Boeing 737 MAX 9
→
8/20/2026
5h 49m
No alerts
Replay Analysis
N17566BOEING Boeing 737 MAX 9
→
8/19/2026
1h 10m
No alerts
Replay Analysis
N77579BOEING Boeing 737 MAX 9
→
8/19/2026
4h 17m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window