UAL1665

UNITED AIRLINES INC · SFO → BOS

UAL1665 is operated by UNITED AIRLINES INC between San Francisco International Airport (KSFO) and General Edward Lawrence Logan International Airport (KBOS). The flight is most often flown by a BOEING Boeing 737 MAX 9. Typical block time is 5h 18m. SkyMeter has observed 91 legs of this flight number via ADS-B.

✈
FLIGHTS
91
last 90 days
⏱
AVG DURATION
5h 18m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 08/21/2026
first → last seen
🗺
ROUTES / TYPES
10 / 3
city pairs · airframes
⚠
INCIDENT RATE
1.1%
1 flagged

Routes flown

By count · last 90 days

5
KSFO → KBOS
61
avg 5h 32m · San Francisco → General Edward Lawrence Logan
KHAF → KBOS
12
avg 5h 33m · Half Moon Bay → General Edward Lawrence Logan
US-0188 → KBOS
3
avg 5h 30m · Coast Guard Air Station San Francisco → General Edward Lawrence Logan
KONT → KSFO
3
avg 1h 12m · Ontario → San Francisco
KOAK → KBOS
2
avg 5h 20m · Metropolitan Oakland → General Edward Lawrence Logan

Aircraft types

Equipment used on this number

3
B39M BOEING Boeing 737 MAX 9
85
B738 BOEING Boeing 737-800
4
B739 BOEING Boeing 737-900
2

Safety profile

Flagged flights · last 90 days

Go-arounds
1
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 UAL1665

30
N78506BOEING Boeing 737-800
→
08/21/2026
57m
No alerts
Replay Analysis
N17444BOEING Boeing 737 MAX 9
→
08/20/2026
5h 17m
No alerts
Replay Analysis
N37531BOEING Boeing 737 MAX 9
→
08/18/2026
5h 31m
No alerts
Replay Analysis
N77261BOEING Boeing 737-800
→
08/18/2026
1h 38m
No alerts
Replay Analysis
N17435BOEING Boeing 737 MAX 9
→
08/17/2026
5h 8m
No alerts
Replay Analysis
N76514BOEING Boeing 737-800
→
08/17/2026
1h 14m
No alerts
Replay Analysis
N37507BOEING Boeing 737 MAX 9
→
08/16/2026
5h 22m
No alerts
Replay Analysis
N17565BOEING Boeing 737 MAX 9
→
08/15/2026
5h 22m
No alerts
Replay Analysis
N68880BOEING Boeing 737-900
→
08/15/2026
1h 23m
No alerts
Replay Analysis
N77552BOEING Boeing 737 MAX 9
→
08/14/2026
5h 15m
No alerts
Replay Analysis
N76514BOEING Boeing 737-800
→
08/14/2026
58m
No alerts
Replay Analysis
N27464BOEING Boeing 737 MAX 9
→
08/13/2026
4h 40m
No alerts
Replay Analysis
N17458BOEING Boeing 737 MAX 9
→
08/11/2026
5h 33m
No alerts
Replay Analysis
N77582BOEING Boeing 737 MAX 9
→
08/10/2026
6h 37m
No alerts
Replay Analysis
N17428BOEING Boeing 737 MAX 9
→
08/09/2026
5h 21m
No alerts
Replay Analysis
N57466BOEING Boeing 737 MAX 9
→
08/08/2026
5h 42m
No alerts
Replay Analysis
N17431BOEING Boeing 737 MAX 9
→
08/07/2026
5h 32m
No alerts
Replay Analysis
N37542BOEING Boeing 737 MAX 9
→
08/06/2026
5h 29m
No alerts
Replay Analysis
N17405BOEING Boeing 737 MAX 9
→
08/05/2026
5h 23m
No alerts
Replay Analysis
N37563BOEING Boeing 737 MAX 9
→
08/04/2026
5h 19m
No alerts
Replay Analysis
N37523BOEING Boeing 737 MAX 9
→
08/03/2026
6h 6m
↻ Go-around
Replay Analysis
N17410BOEING Boeing 737 MAX 9
→
08/02/2026
6h 14m
No alerts
Replay Analysis
N17589BOEING Boeing 737 MAX 9
→
08/01/2026
5h 22m
No alerts
Replay Analysis
N27526BOEING Boeing 737 MAX 9
→
07/31/2026
5h 20m
No alerts
Replay Analysis
N17432BOEING Boeing 737 MAX 9
→
07/30/2026
5h 45m
No alerts
Replay Analysis
N17422BOEING Boeing 737 MAX 9
→
07/29/2026
5h 44m
No alerts
Replay Analysis
N17583BOEING Boeing 737 MAX 9
→
07/28/2026
5h 28m
No alerts
Replay Analysis
N37563BOEING Boeing 737 MAX 9
→
07/27/2026
5h 32m
No alerts
Replay Analysis
N27519BOEING Boeing 737 MAX 9
→
07/26/2026
5h 54m
No alerts
Replay Analysis
N17599BOEING Boeing 737 MAX 9
→
07/25/2026
5h 21m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window