UAL2644

UNITED AIRLINES INC · PHL → DEN

UAL2644 is operated by UNITED AIRLINES INC between Philadelphia International Airport (KPHL) and Denver International Airport (KDEN). The flight is most often flown by a BOEING Boeing 737-800. Typical block time is 2h 50m. SkyMeter has observed 89 legs of this flight number via ADS-B.

✈
FLIGHTS
89
last 90 days
⏱
AVG DURATION
2h 50m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 07/19/2026
first → last seen
🗺
ROUTES / TYPES
15 / 4
city pairs · airframes
⚠
INCIDENT RATE
2.2%
2 flagged

Routes flown

By count · last 90 days

10
KPHL → KDEN
47
avg 3h 53m · Philadelphia → Denver
KLAX → KMRY
13
avg 53m · Los Angeles → Monterey Peninsula
KDEN → KPSP
4
avg 2h 18m · Denver → Palm Springs
60CO → KDEN
2
avg 27m · Stevens → Denver
CO02 → KDEN
1
avg 10m · Harrington Ranch → Denver
US-0412 → KDEN
1
avg 18m · Southlands ER Heliport → Denver
34CO → KDEN
1
avg 23m · Simons → Denver
KDEN → KALB
1
avg 3h 12m · Denver → Albany
7CO3 → KDEN
1
avg 17m · Lindys Airpark → Denver
US-1410 → KMRY
1
avg 51m · Sheraton Gateway Los Angeles Hotel Helipad → Monterey Peninsula

Aircraft types

Equipment used on this number

4
B738 BOEING Boeing 737-800
176
B739 BOEING Boeing 737-900
5
B38M BOEING Boeing 737 MAX 8
3
B39M BOEING Boeing 737 MAX 9
1

Safety profile

Flagged flights · last 90 days

Go-arounds
0
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 UAL2644

30
N76515BOEING Boeing 737-800
→
07/19/2026
3h 26m
No alerts
Replay Analysis
N37287BOEING Boeing 737-800
→
07/19/2026
1h 57m
No alerts
Replay Analysis
N37287BOEING Boeing 737-800
→
07/18/2026
1h 30m
No alerts
Replay Analysis
N37287BOEING Boeing 737-800
→
07/18/2026
3h 28m
No alerts
Replay Analysis
N73291BOEING Boeing 737-800
→
07/18/2026
33m
No alerts
Replay Analysis
N73291BOEING Boeing 737-800
→
07/17/2026
3h 19m
No alerts
Replay Analysis
N73291BOEING Boeing 737-800
→
07/17/2026
2h 45m
No alerts
Replay Analysis
N37563BOEING Boeing 737 MAX 9
→
07/16/2026
3h 21m
No alerts
Replay Analysis
N35236BOEING Boeing 737-800
→
07/16/2026
37m
No alerts
Replay Analysis
N35236BOEING Boeing 737-800
→
07/15/2026
3h 22m
No alerts
Replay Analysis
N35236BOEING Boeing 737-800
→
07/15/2026
2h 44m
No alerts
Replay Analysis
N37263BOEING Boeing 737-800
→
07/15/2026
11m
No alerts
Replay Analysis
N37263BOEING Boeing 737-800
→
07/14/2026
3h 28m
No alerts
Replay Analysis
N36272BOEING Boeing 737-800
→
07/13/2026
3h 14m
No alerts
Replay Analysis
N76517BOEING Boeing 737-800
→
07/13/2026
23m
No alerts
Replay Analysis
N76517BOEING Boeing 737-800
→
07/12/2026
3h 26m
No alerts
Replay Analysis
N76517BOEING Boeing 737-800
→
07/12/2026
3h 2m
No alerts
Replay Analysis
N14250BOEING Boeing 737-800
→
07/12/2026
55m
No alerts
Replay Analysis
N14250BOEING Boeing 737-800
→
07/11/2026
3h 20m
No alerts
Replay Analysis
N14250BOEING Boeing 737-800
→
07/11/2026
2h 24m
No alerts
Replay Analysis
N33209BOEING Boeing 737-800
→
07/11/2026
1h 20m
No alerts
Replay Analysis
N33209BOEING Boeing 737-800
→
07/10/2026
2h 53m
No alerts
Replay Analysis
N33209BOEING Boeing 737-800
→
07/10/2026
4h 14m
No alerts
Replay Analysis
N33209BOEING Boeing 737-800
→
07/10/2026
3h 46m
No alerts
Replay Analysis
N13248BOEING Boeing 737-800
→
07/09/2026
1h 12m
No alerts
Replay Analysis
N13248BOEING Boeing 737-800
→
07/08/2026
3h 3m
No alerts
Replay Analysis
N13248BOEING Boeing 737-800
→
07/08/2026
4h 16m
No alerts
Replay Analysis
N78540BOEING Boeing 737-800
→
07/08/2026
49m
No alerts
Replay Analysis
N78540BOEING Boeing 737-800
→
07/07/2026
4h 14m
No alerts
Replay Analysis
N78540BOEING Boeing 737-800
→
07/07/2026
3h 24m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window