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 43m. SkyMeter has observed 204 legs of this flight number via ADS-B.

✈
FLIGHTS
204
last 90 days
⏱
AVG DURATION
2h 43m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 9/4/2026
first → last seen
🗺
ROUTES / TYPES
25 / 9
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

10
KDEN → KMFR
61
avg 2h 32m · Denver → Rogue Valley International Medford
KMCO → KEWR
39
avg 2h 25m · Orlando → Newark Liberty
KEWR → KDEN
21
avg 4h 7m · Newark Liberty → Denver
KRSW → KDEN
17
avg 4h 4m · Southwest Florida → Denver
KSJC → KDEN
12
avg 2h 26m · Norman Y. Mineta San Jose → Denver
KMCO → KIAD
1
avg 3h 33m · Orlando → Washington Dulles
KMCO → KABE
1
avg 2h 53m · Orlando → Lehigh Valley
KDEN → KS03
1
avg 2h 36m · Denver → Ashland Municipal Sumner Parker Field
CD09 → KDEN
1
avg 19m · Yoder Airstrip → Denver
KRSW → KFMY
1
avg 3h 37m · Southwest Florida → Page Field

Aircraft types

Equipment used on this number

9
B739 BOEING Boeing 737-900
92
B752 BOEING Boeing 757-200
55
A21N AIRBUS Airbus A321 Neo
49
B39M BOEING Boeing 737 MAX 9
34
B738 BOEING Boeing 737-800
12
B38M BOEING Boeing 737 MAX 8
3
B753 BOEING Boeing 757-300
3
A319 AIRBUS Airbus A319
2
ST75 ST75
2

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
N24514AIRBUS Airbus A321 Neo
→
9/4/2026
3h 55m
No alerts
Replay Analysis
N17422BOEING Boeing 737 MAX 9
→
9/4/2026
2h 35m
No alerts
Replay Analysis
N14531AIRBUS Airbus A321 Neo
→
9/4/2026
30m
No alerts
Replay Analysis
N14533AIRBUS Airbus A321 Neo
→
9/2/2026
3h 42m
No alerts
Replay Analysis
N37502BOEING Boeing 737 MAX 9
→
9/2/2026
2h 33m
No alerts
Replay Analysis
N34551AIRBUS Airbus A321 Neo
→
9/2/2026
13m
No alerts
Replay Analysis
N34551AIRBUS Airbus A321 Neo
→
9/1/2026
3h 35m
No alerts
Replay Analysis
N34551AIRBUS Airbus A321 Neo
→
9/1/2026
3h 49m
No alerts
Replay Analysis
N17455BOEING Boeing 737 MAX 9
→
9/1/2026
3h 5m
No alerts
Replay Analysis
N34535AIRBUS Airbus A321 Neo
→
8/31/2026
18m
No alerts
Replay Analysis
N34535AIRBUS Airbus A321 Neo
→
8/31/2026
3h 42m
No alerts
Replay Analysis
N14541AIRBUS Airbus A321 Neo
→
8/31/2026
44m
No alerts
Replay Analysis
N14541AIRBUS Airbus A321 Neo
→
8/30/2026
4h 14m
No alerts
Replay Analysis
N14541AIRBUS Airbus A321 Neo
→
8/30/2026
3h 29m
No alerts
Replay Analysis
N829UAAIRBUS Airbus A319
→
8/30/2026
2h 40m
No alerts
Replay Analysis
N54543AIRBUS Airbus A321 Neo
→
8/30/2026
44m
No alerts
Replay Analysis
N54543AIRBUS Airbus A321 Neo
→
8/29/2026
4h 34m
No alerts
Replay Analysis
N54543AIRBUS Airbus A321 Neo
→
8/29/2026
3h 50m
No alerts
Replay Analysis
N17422BOEING Boeing 737 MAX 9
→
8/29/2026
2h 34m
No alerts
Replay Analysis
N14564AIRBUS Airbus A321 Neo
→
8/28/2026
4h 19m
No alerts
Replay Analysis
N77544BOEING Boeing 737 MAX 9
→
8/28/2026
2h 32m
No alerts
Replay Analysis
N44522AIRBUS Airbus A321 Neo
→
8/27/2026
3h 41m
No alerts
Replay Analysis
N17422BOEING Boeing 737 MAX 9
→
8/27/2026
2h 34m
No alerts
Replay Analysis
N14531AIRBUS Airbus A321 Neo
→
8/26/2026
4h 8m
No alerts
Replay Analysis
N77587BOEING Boeing 737 MAX 9
→
8/26/2026
2h 31m
No alerts
Replay Analysis
N14509AIRBUS Airbus A321 Neo
→
8/25/2026
3h 40m
No alerts
Replay Analysis
N54552AIRBUS Airbus A321 Neo
→
8/25/2026
1h 4m
No alerts
Replay Analysis
N54552AIRBUS Airbus A321 Neo
→
8/25/2026
34m
No alerts
Replay Analysis
N54552AIRBUS Airbus A321 Neo
→
8/24/2026
4h 32m
No alerts
Replay Analysis
N54552AIRBUS Airbus A321 Neo
→
8/24/2026
3h 57m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window