UAL2155

UNITED AIRLINES INC · DEN → PIT

UAL2155 is operated by UNITED AIRLINES INC between Denver International Airport (KDEN) and Pittsburgh International Airport (KPIT). The flight is most often flown by a BOEING Boeing 737-900. Typical block time is 1h 51m. SkyMeter has observed 180 legs of this flight number via ADS-B.

✈
FLIGHTS
180
last 90 days
⏱
AVG DURATION
1h 51m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 8/11/2026
first → last seen
🗺
ROUTES / TYPES
15 / 6
city pairs · airframes
⚠
INCIDENT RATE
0.6%
1 flagged

Routes flown

By count · last 90 days

10
KDEN → KPIT
64
avg 2h 52m · Denver → Pittsburgh
KIDA → KDEN
55
avg 1h 18m · Idaho Falls → Denver
KGJT → KDEN
2
avg 45m · Grand Junction → Denver
KIDA → KGJT
2
avg 1h 32m · Idaho Falls → Grand Junction
KIAD → KPIT
1
avg 1h 28m · Washington Dulles → Pittsburgh
KFTG → KPIT
1
avg 2h 32m · Colorado Air and Space Port → Pittsburgh
KIDA → KCOS
1
avg 2h 1m · Idaho Falls → City of Colorado Springs
KDEN → KIAD
1
avg 4h 7m · Denver → Washington Dulles
KCOS → KDEN
1
avg 30m · City of Colorado Springs → Denver
CO12 → KPIT
1
avg 2h 40m · Brighton Van-Aire Estates → Pittsburgh

Aircraft types

Equipment used on this number

6
B739 BOEING Boeing 737-900
97
B738 BOEING Boeing 737-800
90
B38M BOEING Boeing 737 MAX 8
11
A319 AIRBUS Airbus A319
9
A320 AIRBUS Airbus A320
6
B39M BOEING Boeing 737 MAX 9
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 UAL2155

30
N432UAAIRBUS Airbus A320
→
8/11/2026
1h 20m
No alerts
Replay Analysis
N12238BOEING Boeing 737-800
→
8/11/2026
29m
No alerts
Replay Analysis
N12238BOEING Boeing 737-800
→
8/10/2026
2h 0m
No alerts
Replay Analysis
N62883BOEING Boeing 737-900
→
8/10/2026
3h 1m
No alerts
Replay Analysis
N35260BOEING Boeing 737-800
→
8/9/2026
1h 14m
No alerts
Replay Analysis
N17244BOEING Boeing 737-800
→
8/9/2026
36m
No alerts
Replay Analysis
N17244BOEING Boeing 737-800
→
8/8/2026
1h 34m
No alerts
Replay Analysis
N17244BOEING Boeing 737-800
→
8/8/2026
4h 50m
No alerts
Replay Analysis
N38458BOEING Boeing 737-900
→
8/8/2026
2h 36m
No alerts
Replay Analysis
N79541BOEING Boeing 737-800
→
8/7/2026
1h 12m
No alerts
Replay Analysis
N34455BOEING Boeing 737-900
→
8/7/2026
2h 48m
No alerts
Replay Analysis
N76516BOEING Boeing 737-800
→
8/6/2026
1h 15m
No alerts
Replay Analysis
N38417BOEING Boeing 737-900
→
8/6/2026
2h 37m
No alerts
Replay Analysis
N38417BOEING Boeing 737-900
→
8/5/2026
24m
No alerts
Replay Analysis
N38417BOEING Boeing 737-900
→
8/5/2026
3h 2m
No alerts
Replay Analysis
N27213BOEING Boeing 737-800
→
8/5/2026
1h 19m
No alerts
Replay Analysis
N39416BOEING Boeing 737-900
→
8/5/2026
2h 54m
No alerts
Replay Analysis
N33286BOEING Boeing 737-800
→
8/4/2026
1h 18m
No alerts
Replay Analysis
N37419BOEING Boeing 737-900
→
8/4/2026
3h 19m
No alerts
Replay Analysis
N37419BOEING Boeing 737-900
→
8/4/2026
28m
No alerts
Replay Analysis
N18220BOEING Boeing 737-800
→
8/3/2026
1h 17m
No alerts
Replay Analysis
N63820BOEING Boeing 737-900
→
8/3/2026
2h 45m
△ Low approach-stability score
Replay Analysis
N18220BOEING Boeing 737-800
→
8/2/2026
1h 17m
No alerts
Replay Analysis
N433UAAIRBUS Airbus A320
→
8/2/2026
2h 28m
No alerts
Replay Analysis
N68817BOEING Boeing 737-900
→
8/1/2026
2h 40m
No alerts
Replay Analysis
N68817BOEING Boeing 737-900
→
7/31/2026
10m
No alerts
Replay Analysis
N33209BOEING Boeing 737-800
→
7/31/2026
1h 15m
No alerts
Replay Analysis
N68891BOEING Boeing 737-900
→
7/31/2026
2h 47m
No alerts
Replay Analysis
N26215BOEING Boeing 737-800
→
7/30/2026
1h 13m
No alerts
Replay Analysis
N73259BOEING Boeing 737-800
→
7/30/2026
1h 8m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window