UAL2155

UNITED AIRLINES INC · IDA → DEN

UAL2155 is operated by UNITED AIRLINES INC between Idaho Falls Regional Airport (KIDA) and Denver International Airport (KDEN). The flight is most often flown by a BOEING Boeing 737-900. Typical block time is 1h 47m. SkyMeter has observed 168 legs of this flight number via ADS-B.

✈
FLIGHTS
168
last 90 days
⏱
AVG DURATION
1h 47m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 08/30/2026
first → last seen
🗺
ROUTES / TYPES
17 / 5
city pairs · airframes
⚠
INCIDENT RATE
0.6%
1 flagged

Routes flown

By count · last 90 days

10
KIDA → KDEN
66
avg 1h 19m · Idaho Falls → Denver
KDEN → KPIT
55
avg 2h 51m · Denver → Pittsburgh
KGJT → KDEN
2
avg 45m · Grand Junction → Denver
KIDA → KGJT
2
avg 1h 32m · Idaho Falls → Grand Junction
KDEN → KIAD
1
avg 4h 7m · Denver → Washington Dulles
KIAD → KPIT
1
avg 1h 28m · Washington Dulles → Pittsburgh
KIDA → KCOS
1
avg 2h 1m · Idaho Falls → City of Colorado Springs
KCOS → KDEN
1
avg 30m · City of Colorado Springs → Denver
KIDA → KRAP
1
avg 1h 35m · Idaho Falls → Rapid City
2CO9 → KDEN
1
avg 52m · Lands End Heliport → Denver

Aircraft types

Equipment used on this number

5
B739 BOEING Boeing 737-900
78
B738 BOEING Boeing 737-800
77
A320 AIRBUS Airbus A320
21
B39M BOEING Boeing 737 MAX 9
12
A319 AIRBUS Airbus A319
6

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
N27511BOEING Boeing 737 MAX 9
→
08/30/2026
2h 45m
No alerts
Replay Analysis
N27519BOEING Boeing 737 MAX 9
→
08/29/2026
2h 44m
No alerts
Replay Analysis
N77544BOEING Boeing 737 MAX 9
→
08/27/2026
3h 6m
No alerts
Replay Analysis
N479UAAIRBUS Airbus A320
→
08/25/2026
1h 19m
No alerts
Replay Analysis
N17452BOEING Boeing 737 MAX 9
→
08/25/2026
3h 29m
No alerts
Replay Analysis
N437UAAIRBUS Airbus A320
→
08/24/2026
1h 46m
No alerts
Replay Analysis
N57451BOEING Boeing 737 MAX 9
→
08/24/2026
3h 26m
No alerts
Replay Analysis
N431UAAIRBUS Airbus A320
→
08/23/2026
22m
No alerts
Replay Analysis
N431UAAIRBUS Airbus A320
→
08/23/2026
1h 53m
No alerts
Replay Analysis
N451UAAIRBUS Airbus A320
→
08/23/2026
1h 45m
No alerts
Replay Analysis
N451UAAIRBUS Airbus A320
→
08/23/2026
45m
No alerts
Replay Analysis
N451UAAIRBUS Airbus A320
→
08/22/2026
44m
No alerts
Replay Analysis
N451UAAIRBUS Airbus A320
→
08/22/2026
44m
No alerts
Replay Analysis
N451UAAIRBUS Airbus A320
→
08/22/2026
1h 34m
↘ Diverted
Replay Analysis
N466UAAIRBUS Airbus A320
→
08/21/2026
1h 27m
No alerts
Replay Analysis
N37551BOEING Boeing 737 MAX 9
→
08/21/2026
2h 34m
No alerts
Replay Analysis
N490UAAIRBUS Airbus A320
→
08/20/2026
1h 11m
No alerts
Replay Analysis
N17408BOEING Boeing 737 MAX 9
→
08/20/2026
2h 31m
No alerts
Replay Analysis
N475UAAIRBUS Airbus A320
→
08/18/2026
1h 15m
No alerts
Replay Analysis
N77590BOEING Boeing 737 MAX 9
→
08/18/2026
2h 52m
No alerts
Replay Analysis
N438UAAIRBUS Airbus A320
→
08/17/2026
1h 18m
No alerts
Replay Analysis
N37450BOEING Boeing 737 MAX 9
→
08/17/2026
2h 25m
No alerts
Replay Analysis
N477UAAIRBUS Airbus A320
→
08/16/2026
1h 10m
No alerts
Replay Analysis
N488UAAIRBUS Airbus A320
→
08/16/2026
1h 8m
↘ Diverted
Replay Analysis
N488UAAIRBUS Airbus A320
→
08/15/2026
8m
No alerts
Replay Analysis
N488UAAIRBUS Airbus A320
→
08/15/2026
1h 17m
No alerts
Replay Analysis
N494UAAIRBUS Airbus A320
→
08/15/2026
1h 13m
No alerts
Replay Analysis
N17436BOEING Boeing 737 MAX 9
→
08/14/2026
2h 53m
No alerts
Replay Analysis
N17436BOEING Boeing 737 MAX 9
→
08/13/2026
12m
No alerts
Replay Analysis
N472UAAIRBUS Airbus A320
→
08/13/2026
1h 18m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window