UAL663 is operated by UNITED AIRLINES INC between Denver International Airport (KDEN) and Rogue Valley International Medford Airport (KMFR). The flight is most often flown by a BOEING Boeing 737-900. Typical block time is 2h 33m. SkyMeter has observed 205 legs of this flight number via ADS-B.

✈
FLIGHTS
205
last 90 days
⏱
AVG DURATION
2h 33m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 08/20/2026
first → last seen
🗺
ROUTES / TYPES
21 / 7
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

10
KDEN → KMFR
61
avg 2h 31m · Denver → Rogue Valley International Medford
KMCO → KEWR
39
avg 2h 25m · Orlando → Newark Liberty
KEWR → KDEN
21
avg 4h 7m · Newark Liberty → Denver
KSJC → KDEN
17
avg 2h 26m · Norman Y. Mineta San Jose → Denver
KRSW → KDEN
6
avg 4h 11m · Southwest Florida → Denver
KMCO → KIAD
1
avg 3h 33m · Orlando → Washington Dulles
03CO → KDEN
1
avg 20m · Kugel-Strong → Denver
1CD2 → KDEN
1
avg 36m · Tonga → Denver
KMCO → KABE
1
avg 2h 53m · Orlando → Lehigh Valley
KEWR → KFTG
1
avg 4h 10m · Newark Liberty → Colorado Air and Space Port

Aircraft types

Equipment used on this number

7
B739 BOEING Boeing 737-900
114
B752 BOEING Boeing 757-200
55
B39M BOEING Boeing 737 MAX 9
37
A21N AIRBUS Airbus A321 Neo
17
B738 BOEING Boeing 737-800
12
B38M BOEING Boeing 737 MAX 8
5
B753 BOEING Boeing 757-300
3

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 UAL663

30
N24508AIRBUS Airbus A321 Neo
→
08/20/2026
3h 43m
No alerts
Replay Analysis
N24513AIRBUS Airbus A321 Neo
→
08/18/2026
28m
No alerts
Replay Analysis
N24513AIRBUS Airbus A321 Neo
→
08/18/2026
3h 28m
No alerts
Replay Analysis
N97424BOEING Boeing 737 MAX 9
→
08/18/2026
2h 38m
No alerts
Replay Analysis
N24542AIRBUS Airbus A321 Neo
→
08/17/2026
3h 31m
No alerts
Replay Analysis
N77590BOEING Boeing 737 MAX 9
→
08/17/2026
2h 35m
↘ Diverted (inferred)
Replay Analysis
N34562AIRBUS Airbus A321 Neo
→
08/17/2026
17m
No alerts
Replay Analysis
N34562AIRBUS Airbus A321 Neo
→
08/16/2026
4h 16m
No alerts
Replay Analysis
N34562AIRBUS Airbus A321 Neo
→
08/16/2026
3h 59m
No alerts
Replay Analysis
N14548AIRBUS Airbus A321 Neo
→
08/16/2026
1h 44m
No alerts
Replay Analysis
N14548AIRBUS Airbus A321 Neo
→
08/15/2026
3h 4m
No alerts
Replay Analysis
N14548AIRBUS Airbus A321 Neo
→
08/15/2026
4h 49m
No alerts
Replay Analysis
N24516AIRBUS Airbus A321 Neo
→
08/15/2026
3h 30m
No alerts
Replay Analysis
N24516AIRBUS Airbus A321 Neo
→
08/14/2026
56m
No alerts
Replay Analysis
N24516AIRBUS Airbus A321 Neo
→
08/14/2026
4h 27m
No alerts
Replay Analysis
N37548BOEING Boeing 737 MAX 9
→
08/14/2026
3h 9m
No alerts
Replay Analysis
N14549AIRBUS Airbus A321 Neo
→
08/14/2026
32m
No alerts
Replay Analysis
N14549AIRBUS Airbus A321 Neo
→
08/13/2026
4h 22m
No alerts
Replay Analysis
N14549AIRBUS Airbus A321 Neo
→
08/13/2026
3h 50m
No alerts
Replay Analysis
N37563BOEING Boeing 737 MAX 9
→
08/12/2026
2h 35m
No alerts
Replay Analysis
N14540AIRBUS Airbus A321 Neo
→
08/11/2026
3h 24m
No alerts
Replay Analysis
N78866BOEING Boeing 757-300
→
08/11/2026
3h 11m
No alerts
Replay Analysis
N78866BOEING Boeing 757-300
→
08/10/2026
4h 16m
No alerts
Replay Analysis
N78866BOEING Boeing 757-300
→
08/10/2026
1h 4m
No alerts
Replay Analysis
N69888BOEING Boeing 737-900
→
08/10/2026
2h 20m
No alerts
Replay Analysis
N37465BOEING Boeing 737-900
→
08/10/2026
2h 30m
No alerts
Replay Analysis
N18119BOEING Boeing 757-200
→
08/10/2026
11m
No alerts
Replay Analysis
N18119BOEING Boeing 757-200
→
08/09/2026
4h 10m
No alerts
Replay Analysis
N63820BOEING Boeing 737-900
→
08/09/2026
19m
No alerts
Replay Analysis
N17128BOEING Boeing 757-200
→
08/09/2026
4h 10m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window