Flight Status & Tracker

UAL2644

UNITED AIRLINES INC · PHL → DEN · Last tracked Oct 22, 2026

UAL2644 is a flight number operated by UNITED AIRLINES INC between Philadelphia International Airport (KPHL) and Denver International Airport (KDEN). SkyMeter last tracked UAL2644 on October 22, 2026. The flight is most often flown by a BOEING Boeing 737 MAX 9. Typical block time is 2h 50m. SkyMeter has observed 135 legs of this flight number via ADS-B.

SkyMeter tracks historical flight activity from ADS-B data — this is not a live gate-to-gate status feed.

✈
FLIGHTS
135
last 90 days
⏱
AVG DURATION
2h 50m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 10/22/2026
first → last seen
🗺
ROUTES / TYPES
12 / 4
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

8
KPHL → KDEN
62
avg 3h 44m · Philadelphia → Denver
KDEN → KPSP
30
avg 2h 6m · Denver → Palm Springs
KGJT → KDEN
1
avg 53m · Grand Junction → Denver
KPHL → KGJT
1
avg 4h 11m · Philadelphia → Grand Junction
KGCK → KDEN
1
avg 1h 17m · Garden City → Denver
KPHL → KCOS
1
avg 5h 43m · Philadelphia → City of Colorado Springs
US-0174 → KDEN
1
avg 10m · Aurora Airpark → Denver
71CO → KDEN
1
avg 16m · Houston Heliport → Denver

Aircraft types

Equipment used on this number

4
B39M BOEING Boeing 737 MAX 9
102
B738 BOEING Boeing 737-800
70
B739 BOEING Boeing 737-900
13
A21N AIRBUS Airbus A321 Neo
10

Safety profile

Flagged flights · last 90 days

Go-arounds
0
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 UAL2644

30
N27539BOEING Boeing 737 MAX 9
→
10/22/2026
3h 34m
No alerts
Replay Analysis
N73275BOEING Boeing 737-800
→
10/22/2026
2h 12m
No alerts
Replay Analysis
N17452BOEING Boeing 737 MAX 9
→
10/21/2026
3h 38m
No alerts
Replay Analysis
N17467BOEING Boeing 737 MAX 9
→
10/18/2026
3h 27m
No alerts
Replay Analysis
N63820BOEING Boeing 737-900
→
10/18/2026
2h 9m
No alerts
Replay Analysis
N47533BOEING Boeing 737 MAX 9
→
10/18/2026
44m
No alerts
Replay Analysis
N47533BOEING Boeing 737 MAX 9
→
10/17/2026
2h 45m
No alerts
Replay Analysis
N47533BOEING Boeing 737 MAX 9
→
10/17/2026
3h 30m
No alerts
Replay Analysis
N38424BOEING Boeing 737-900
→
10/17/2026
1h 45m
No alerts
Replay Analysis
N14559AIRBUS Airbus A321 Neo
→
10/16/2026
3h 57m
No alerts
Replay Analysis
N12225BOEING Boeing 737-800
→
10/16/2026
1h 35m
No alerts
Replay Analysis
N17467BOEING Boeing 737 MAX 9
→
10/15/2026
3h 41m
No alerts
Replay Analysis
N12218BOEING Boeing 737-800
→
10/15/2026
1h 44m
No alerts
Replay Analysis
N76532BOEING Boeing 737-800
→
10/13/2026
1h 56m
No alerts
Replay Analysis
N37556BOEING Boeing 737 MAX 9
→
10/12/2026
2h 26m
No alerts
Replay Analysis
N77579BOEING Boeing 737 MAX 9
→
10/10/2026
3h 35m
No alerts
Replay Analysis
N87507BOEING Boeing 737-800
→
10/10/2026
1h 59m
No alerts
Replay Analysis
N14566AIRBUS Airbus A321 Neo
→
10/9/2026
3h 47m
No alerts
Replay Analysis
N78540BOEING Boeing 737-800
→
10/9/2026
1h 57m
No alerts
Replay Analysis
N47462BOEING Boeing 737 MAX 9
→
10/8/2026
3h 44m
No alerts
Replay Analysis
N17591BOEING Boeing 737 MAX 9
→
10/8/2026
2h 38m
No alerts
Replay Analysis
N17591BOEING Boeing 737 MAX 9
→
10/8/2026
3h 40m
No alerts
Replay Analysis
N17591BOEING Boeing 737 MAX 9
→
10/8/2026
1h 1m
No alerts
Replay Analysis
N69810BOEING Boeing 737-900
→
10/7/2026
1h 57m
No alerts
Replay Analysis
N47453BOEING Boeing 737 MAX 9
→
10/7/2026
10m
No alerts
Replay Analysis
N47453BOEING Boeing 737 MAX 9
→
10/6/2026
3h 34m
No alerts
Replay Analysis
N73275BOEING Boeing 737-800
→
10/6/2026
2h 11m
No alerts
Replay Analysis
N14533AIRBUS Airbus A321 Neo
→
10/6/2026
34m
No alerts
Replay Analysis
N14533AIRBUS Airbus A321 Neo
→
10/5/2026
3h 40m
No alerts
Replay Analysis
N14533AIRBUS Airbus A321 Neo
→
10/5/2026
3h 5m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window