UAL1671

UNITED AIRLINES INC · SFO → DEN

UAL1671 is operated by UNITED AIRLINES INC between San Francisco International Airport (KSFO) and Denver International Airport (KDEN). The flight is most often flown by a BOEING Boeing 737 MAX 8. Typical block time is 2h 39m. SkyMeter has observed 37 legs of this flight number via ADS-B.

✈
FLIGHTS
37
last 90 days
⏱
AVG DURATION
2h 39m
tracked time
📅
SERVICE PERIOD
04/17/2026 → 06/03/2026
first → last seen
🗺
ROUTES / TYPES
8 / 4
city pairs · airframes
⚠
INCIDENT RATE
8.1%
3 flagged

Routes flown

By count · last 90 days

4
KSFO → KDEN
12
avg 2h 31m · San Francisco → Denver
KDEN → KATL
11
avg 2h 55m · Denver → Hartsfield Jackson Atlanta
KLGA → KDEN
5
avg 4h 35m · La Guardia → Denver
US-0188 → KDEN
1
avg 2h 6m · Coast Guard Air Station San Francisco → Denver

Aircraft types

Equipment used on this number

4
B38M BOEING Boeing 737 MAX 8
18
B39M BOEING Boeing 737 MAX 9
14
A320 AIRBUS Airbus A320
10
B738 BOEING Boeing 737-800
5

Safety profile

Flagged flights · last 90 days

Go-arounds
1
Unstable approach
2
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 UAL1671

30
N449UAAIRBUS Airbus A320
→
06/03/2026
2h 47m
No alerts
Replay Analysis
N17599BOEING Boeing 737 MAX 9
→
06/02/2026
2h 42m
No alerts
Replay Analysis
N495UAAIRBUS Airbus A320
→
06/01/2026
2h 47m
No alerts
Replay Analysis
N438UAAIRBUS Airbus A320
→
05/31/2026
2h 47m
↻ Go-around
Replay Analysis
N474UAAIRBUS Airbus A320
→
05/29/2026
3h 1m
No alerts
Replay Analysis
N448UAAIRBUS Airbus A320
→
05/28/2026
3h 2m
No alerts
Replay Analysis
N475UAAIRBUS Airbus A320
→
05/27/2026
3h 6m
No alerts
Replay Analysis
N37536BOEING Boeing 737 MAX 8
→
05/26/2026
44m
No alerts
Replay Analysis
N37536BOEING Boeing 737 MAX 8
→
05/26/2026
2h 55m
No alerts
Replay Analysis
N452UAAIRBUS Airbus A320
→
05/25/2026
19m
No alerts
Replay Analysis
N452UAAIRBUS Airbus A320
→
05/25/2026
3h 34m
No alerts
Replay Analysis
N445UAAIRBUS Airbus A320
→
05/24/2026
2h 48m
No alerts
Replay Analysis
N485UAAIRBUS Airbus A320
→
05/21/2026
2h 42m
No alerts
Replay Analysis
N76504BOEING Boeing 737-800
→
05/20/2026
2h 34m
No alerts
Replay Analysis
N77592BOEING Boeing 737 MAX 9
→
05/18/2026
2h 25m
No alerts
Replay Analysis
N37556BOEING Boeing 737 MAX 9
→
05/17/2026
2h 44m
No alerts
Replay Analysis
N77590BOEING Boeing 737 MAX 9
→
05/15/2026
2h 26m
No alerts
Replay Analysis
N17565BOEING Boeing 737 MAX 9
→
05/14/2026
11m
No alerts
Replay Analysis
N17565BOEING Boeing 737 MAX 9
→
05/14/2026
2h 21m
No alerts
Replay Analysis
N17566BOEING Boeing 737 MAX 9
→
05/13/2026
2h 38m
No alerts
Replay Analysis
N37563BOEING Boeing 737 MAX 9
→
05/11/2026
2h 36m
No alerts
Replay Analysis
N27539BOEING Boeing 737 MAX 9
→
05/10/2026
2h 26m
△ Unstable
Replay Analysis
N17436BOEING Boeing 737 MAX 9
→
05/08/2026
2h 6m
△ Unstable
Replay Analysis
N37450BOEING Boeing 737 MAX 9
→
05/07/2026
2h 29m
No alerts
Replay Analysis
N17595BOEING Boeing 737 MAX 9
→
05/04/2026
2h 36m
No alerts
Replay Analysis
N17448BOEING Boeing 737 MAX 9
→
05/03/2026
2h 27m
No alerts
Replay Analysis
N37545BOEING Boeing 737 MAX 9
→
05/02/2026
2h 27m
No alerts
Replay Analysis
N79541BOEING Boeing 737-800
→
04/25/2026
2h 55m
No alerts
Replay Analysis
N17355BOEING Boeing 737 MAX 8
→
04/25/2026
1h 17m
No alerts
Replay Analysis
N17329BOEING Boeing 737 MAX 8
→
04/24/2026
2h 38m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window