UAL453 is operated by UNITED AIRLINES INC between Phoenix Sky Harbor International Airport (KPHX) and San Francisco International Airport (KSFO). The flight is most often flown by a BOEING Boeing 737 MAX 8. Typical block time is 3h 7m. SkyMeter has observed 102 legs of this flight number via ADS-B.

✈
FLIGHTS
102
last 90 days
⏱
AVG DURATION
3h 7m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 06/29/2026
first → last seen
🗺
ROUTES / TYPES
12 / 5
city pairs · airframes
⚠
INCIDENT RATE
9.8%
10 flagged

Routes flown

By count · last 90 days

8
KPHX → KSFO
34
avg 2h 3m · Phoenix Sky Harbor → San Francisco
KSYR → KDEN
24
avg 3h 57m · Syracuse Hancock → Denver
KSFO → KBWI
23
avg 4h 58m · San Francisco → Baltimore/Washington International Thurgood Marshall
KCHD → KSFO
2
avg 2h 9m · Chandler → San Francisco
4NK1 → KDEN
1
avg 3h 39m · B-Ville Airpark → Denver
KHAF → KBWI
1
avg 5h 17m · Half Moon Bay → Baltimore/Washington International Thurgood Marshall
7CO3 → KDEN
1
avg 14m · Lindys Airpark → Denver
AZ42 → KSFO
1
avg 2h 4m · Asi Heliport → San Francisco

Aircraft types

Equipment used on this number

5
B38M BOEING Boeing 737 MAX 8
99
B738 BOEING Boeing 737-800
66
B39M BOEING Boeing 737 MAX 9
28
A320 AIRBUS Airbus A320
3
B739 BOEING Boeing 737-900
2

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
10
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 UAL453

30
N37255BOEING Boeing 737-800
→
06/29/2026
3h 38m
No alerts
Replay Analysis
N76508BOEING Boeing 737-800
→
06/29/2026
38m
No alerts
Replay Analysis
N76508BOEING Boeing 737-800
→
06/28/2026
3h 38m
No alerts
Replay Analysis
N77537BOEING Boeing 737-800
→
06/28/2026
17m
No alerts
Replay Analysis
N77537BOEING Boeing 737-800
→
06/27/2026
3h 27m
No alerts
Replay Analysis
N77537BOEING Boeing 737-800
→
06/27/2026
3h 44m
No alerts
Replay Analysis
N77525BOEING Boeing 737-800
→
06/27/2026
14m
No alerts
Replay Analysis
N77525BOEING Boeing 737-800
→
06/26/2026
3h 43m
No alerts
Replay Analysis
N73259BOEING Boeing 737-800
→
06/26/2026
20m
No alerts
Replay Analysis
N73259BOEING Boeing 737-800
→
06/25/2026
3h 32m
No alerts
Replay Analysis
N73259BOEING Boeing 737-800
→
06/25/2026
3h 53m
No alerts
Replay Analysis
N18220BOEING Boeing 737-800
→
06/22/2026
3h 37m
△ Unstable
Replay Analysis
N76503BOEING Boeing 737-800
→
06/21/2026
3h 31m
No alerts
Replay Analysis
N77296BOEING Boeing 737-800
→
06/21/2026
22m
△ Unstable
Replay Analysis
N77296BOEING Boeing 737-800
→
06/20/2026
4h 6m
△ Unstable
Replay Analysis
N77296BOEING Boeing 737-800
→
06/20/2026
3h 43m
No alerts
Replay Analysis
N77536BOEING Boeing 737-800
→
06/20/2026
12m
No alerts
Replay Analysis
N77536BOEING Boeing 737-800
→
06/19/2026
3h 53m
No alerts
Replay Analysis
N27213BOEING Boeing 737-800
→
06/19/2026
11m
No alerts
Replay Analysis
N27213BOEING Boeing 737-800
→
06/18/2026
3h 51m
No alerts
Replay Analysis
N77538BOEING Boeing 737-800
→
06/15/2026
3h 49m
No alerts
Replay Analysis
N77296BOEING Boeing 737-800
→
06/15/2026
26m
No alerts
Replay Analysis
N77296BOEING Boeing 737-800
→
06/14/2026
4h 19m
No alerts
Replay Analysis
N77296BOEING Boeing 737-800
→
06/14/2026
3h 53m
No alerts
Replay Analysis
N473UAAIRBUS Airbus A320
→
06/14/2026
55m
No alerts
Replay Analysis
N473UAAIRBUS Airbus A320
→
06/13/2026
3h 57m
No alerts
Replay Analysis
N473UAAIRBUS Airbus A320
→
06/13/2026
3h 2m
No alerts
Replay Analysis
N12225BOEING Boeing 737-800
→
06/12/2026
3h 44m
No alerts
Replay Analysis
N37274BOEING Boeing 737-800
→
06/12/2026
25m
No alerts
Replay Analysis
N37274BOEING Boeing 737-800
→
06/11/2026
3h 13m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window