UAL1999

UNITED AIRLINES INC · EWR → DEN

UAL1999 is operated by UNITED AIRLINES INC between Newark Liberty International Airport (KEWR) and Denver International Airport (KDEN). The flight is most often flown by a AIRBUS Airbus A321 Neo. Typical block time is 3h 25m. SkyMeter has observed 128 legs of this flight number via ADS-B.

✈
FLIGHTS
128
last 90 days
⏱
AVG DURATION
3h 25m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 08/18/2026
first → last seen
🗺
ROUTES / TYPES
13 / 5
city pairs · airframes
⚠
INCIDENT RATE
0.8%
1 flagged

Routes flown

By count · last 90 days

9
KEWR → KDEN
67
avg 4h 1m · Newark Liberty → Denver
KRSW → KEWR
29
avg 2h 32m · Southwest Florida → Newark Liberty
KTPA → KEWR
8
avg 2h 26m · Tampa → Newark Liberty
KEWR → KFTG
2
avg 4h 3m · Newark Liberty → Colorado Air and Space Port
US-0263 → KDEN
1
avg 7h 2m · Ravenswood → Denver
KCOS → KDEN
1
avg 51m · City of Colorado Springs → Denver
KRSW → FL59
1
avg 2h 29m · Southwest Florida → Buckingham Field
KEWR → KCDW
1
avg 3h 57m · Newark Liberty → Essex County
KEWR → KCOS
1
avg 4h 40m · Newark Liberty → City of Colorado Springs

Aircraft types

Equipment used on this number

5
A21N AIRBUS Airbus A321 Neo
87
B38M BOEING Boeing 737 MAX 8
32
B739 BOEING Boeing 737-900
7
B39M BOEING Boeing 737 MAX 9
1
ST75 ST75
1

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
1
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 UAL1999

30
N54525AIRBUS Airbus A321 Neo
→
08/18/2026
3h 53m
No alerts
Replay Analysis
N69888BOEING Boeing 737-900
→
08/18/2026
2h 28m
△ Low approach-stability score
Replay Analysis
N54570AIRBUS Airbus A321 Neo
→
08/17/2026
4h 11m
No alerts
Replay Analysis
N37462BOEING Boeing 737-900
→
08/17/2026
2h 12m
No alerts
Replay Analysis
N14517AIRBUS Airbus A321 Neo
→
08/16/2026
4h 11m
No alerts
Replay Analysis
N69840BOEING Boeing 737-900
→
08/16/2026
2h 39m
No alerts
Replay Analysis
N54561ST75
→
08/15/2026
3h 55m
No alerts
Replay Analysis
N39450BOEING Boeing 737-900
→
08/15/2026
2h 24m
No alerts
Replay Analysis
N24513AIRBUS Airbus A321 Neo
→
08/14/2026
4h 11m
No alerts
Replay Analysis
N81449BOEING Boeing 737-900
→
08/14/2026
2h 23m
No alerts
Replay Analysis
N54525AIRBUS Airbus A321 Neo
→
08/13/2026
4h 13m
No alerts
Replay Analysis
N47340BOEING Boeing 737 MAX 8
→
08/13/2026
2h 33m
No alerts
Replay Analysis
N54543AIRBUS Airbus A321 Neo
→
08/12/2026
4h 14m
No alerts
Replay Analysis
N69840BOEING Boeing 737-900
→
08/12/2026
2h 27m
No alerts
Replay Analysis
N14518AIRBUS Airbus A321 Neo
→
08/11/2026
4h 38m
No alerts
Replay Analysis
N39423BOEING Boeing 737-900
→
08/11/2026
2h 23m
No alerts
Replay Analysis
N14557AIRBUS Airbus A321 Neo
→
08/10/2026
5h 4m
No alerts
Replay Analysis
N14560AIRBUS Airbus A321 Neo
→
08/09/2026
7h 2m
No alerts
Replay Analysis
N14509AIRBUS Airbus A321 Neo
→
08/08/2026
4h 44m
No alerts
Replay Analysis
N24555AIRBUS Airbus A321 Neo
→
08/07/2026
4h 0m
No alerts
Replay Analysis
N14576
→
08/06/2026
3h 40m
No alerts
Replay Analysis
N24516AIRBUS Airbus A321 Neo
→
08/05/2026
3h 57m
No alerts
Replay Analysis
N14540AIRBUS Airbus A321 Neo
→
08/04/2026
3h 53m
No alerts
Replay Analysis
N14521AIRBUS Airbus A321 Neo
→
08/03/2026
3h 50m
No alerts
Replay Analysis
N24555AIRBUS Airbus A321 Neo
→
08/02/2026
3h 53m
No alerts
Replay Analysis
N14530AIRBUS Airbus A321 Neo
→
07/31/2026
3h 44m
No alerts
Replay Analysis
N34547AIRBUS Airbus A321 Neo
→
07/30/2026
4h 0m
No alerts
Replay Analysis
N14523AIRBUS Airbus A321 Neo
→
07/29/2026
3h 55m
No alerts
Replay Analysis
N14545AIRBUS Airbus A321 Neo
→
07/29/2026
1h 41m
No alerts
Replay Analysis
N14545AIRBUS Airbus A321 Neo
→
07/28/2026
5h 39m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window