UAL645 is operated by UNITED AIRLINES INC between Tampa International Airport (KTPA) and Denver International Airport (KDEN). The flight is most often flown by a AIRBUS Airbus A320. Typical block time is 2h 18m. SkyMeter has observed 187 legs of this flight number via ADS-B.

✈
FLIGHTS
187
last 90 days
⏱
AVG DURATION
2h 18m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 07/19/2026
first → last seen
🗺
ROUTES / TYPES
8 / 4
city pairs · airframes
⚠
INCIDENT RATE
1.1%
2 flagged

Routes flown

By count · last 90 days

5
KTPA → KDEN
83
avg 3h 43m · Tampa → Denver
KDEN → KFSD
68
avg 1h 27m · Denver → Joe Foss Field
CO12 → KFSD
3
avg 1h 5m · Brighton Van-Aire Estates → Joe Foss Field
KOMA → KFSD
1
avg 43m · Eppley Airfield → Joe Foss Field
KDEN → KOMA
1
avg 1h 55m · Denver → Eppley Airfield

Aircraft types

Equipment used on this number

4
A320 AIRBUS Airbus A320
132
B738 BOEING Boeing 737-800
115
B39M BOEING Boeing 737 MAX 9
11
B739 BOEING Boeing 737-900
7

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 UAL645

30
N451UAAIRBUS Airbus A320
→
07/19/2026
32m
No alerts
Replay Analysis
N76502BOEING Boeing 737-800
→
07/19/2026
3h 35m
No alerts
Replay Analysis
N491UAAIRBUS Airbus A320
→
07/19/2026
1h 23m
No alerts
Replay Analysis
N27239BOEING Boeing 737-800
→
07/18/2026
3h 23m
No alerts
Replay Analysis
N469UAAIRBUS Airbus A320
→
07/18/2026
1h 1m
No alerts
Replay Analysis
N469UAAIRBUS Airbus A320
→
07/17/2026
1h 16m
No alerts
Replay Analysis
N469UAAIRBUS Airbus A320
→
07/17/2026
15m
No alerts
Replay Analysis
N34282BOEING Boeing 737-800
→
07/17/2026
3h 34m
No alerts
Replay Analysis
N436UAAIRBUS Airbus A320
→
07/16/2026
33m
No alerts
Replay Analysis
N73270BOEING Boeing 737-800
→
07/16/2026
3h 42m
No alerts
Replay Analysis
N442UAAIRBUS Airbus A320
→
07/15/2026
24m
No alerts
Replay Analysis
N68880BOEING Boeing 737-900
→
07/15/2026
3h 25m
No alerts
Replay Analysis
N467UAAIRBUS Airbus A320
→
07/15/2026
1h 10m
No alerts
Replay Analysis
N467UAAIRBUS Airbus A320
→
07/14/2026
12m
No alerts
Replay Analysis
N27239BOEING Boeing 737-800
→
07/14/2026
3h 34m
No alerts
Replay Analysis
N461UAAIRBUS Airbus A320
→
07/14/2026
51m
No alerts
Replay Analysis
N461UAAIRBUS Airbus A320
→
07/13/2026
36m
No alerts
Replay Analysis
N461UAAIRBUS Airbus A320
→
07/13/2026
1h 28m
No alerts
Replay Analysis
N14237BOEING Boeing 737-800
→
07/13/2026
3h 52m
No alerts
Replay Analysis
N438UAAIRBUS Airbus A320
→
07/13/2026
50m
No alerts
Replay Analysis
N438UAAIRBUS Airbus A320
→
07/12/2026
31m
No alerts
Replay Analysis
N438UAAIRBUS Airbus A320
→
07/12/2026
1h 21m
No alerts
Replay Analysis
N37531BOEING Boeing 737 MAX 9
→
07/12/2026
3h 54m
No alerts
Replay Analysis
N437UAAIRBUS Airbus A320
→
07/12/2026
50m
No alerts
Replay Analysis
N437UAAIRBUS Airbus A320
→
07/11/2026
32m
No alerts
Replay Analysis
N437UAAIRBUS Airbus A320
→
07/11/2026
1h 23m
No alerts
Replay Analysis
N37287BOEING Boeing 737-800
→
07/11/2026
3h 29m
No alerts
Replay Analysis
N443UAAIRBUS Airbus A320
→
07/11/2026
1h 16m
No alerts
Replay Analysis
N443UAAIRBUS Airbus A320
→
07/10/2026
18m
No alerts
Replay Analysis
N77258BOEING Boeing 737-800
→
07/10/2026
3h 29m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window