Flight Status & Tracker

UAL1540

UNITED AIRLINES INC · TUS → DEN · Last tracked Oct 18, 2026

UAL1540 is a flight number operated by UNITED AIRLINES INC between Tucson International Airport / Morris Air National Guard Base (KTUS) and Denver International Airport (KDEN). SkyMeter last tracked UAL1540 on October 18, 2026. The flight is most often flown by a BOEING Boeing 737-800. Typical block time is 2h 31m. SkyMeter has observed 89 legs of this flight number via ADS-B.

SkyMeter tracks historical flight activity from ADS-B data — this is not a live gate-to-gate status feed.

✈
FLIGHTS
89
last 90 days
⏱
AVG DURATION
2h 31m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 10/18/2026
first → last seen
🗺
ROUTES / TYPES
5 / 5
city pairs · airframes
⚠
INCIDENT RATE
1.1%
1 flagged

Routes flown

By count · last 90 days

3
KTUS → KDEN
58
avg 1h 33m · Tucson International Airport / Morris Air National Guard Base → Denver
KFLL → KSFO
18
avg 5h 34m · Fort Lauderdale Hollywood → San Francisco
KDEN → KORF
7
avg 3h 22m · Denver → Norfolk

Aircraft types

Equipment used on this number

5
B738 BOEING Boeing 737-800
54
B39M BOEING Boeing 737 MAX 9
27
B739 BOEING Boeing 737-900
5
B38M BOEING Boeing 737 MAX 8
2
A320 AIRBUS Airbus A320
1

Safety profile

Flagged flights · last 90 days

Go-arounds
1
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 UAL1540

30
N34282BOEING Boeing 737-800
→
10/18/2026
1h 30m
No alerts
Replay Analysis
N76529BOEING Boeing 737-800
→
10/16/2026
1h 33m
No alerts
Replay Analysis
N17315BOEING Boeing 737 MAX 8
→
10/15/2026
1h 38m
No alerts
Replay Analysis
N77510BOEING Boeing 737-800
→
10/14/2026
1h 27m
No alerts
Replay Analysis
N68823BOEING Boeing 737-900
→
10/13/2026
1h 28m
No alerts
Replay Analysis
N78540BOEING Boeing 737-800
→
10/10/2026
1h 27m
No alerts
Replay Analysis
N67812BOEING Boeing 737-900
→
10/9/2026
1h 35m
No alerts
Replay Analysis
N35204BOEING Boeing 737-800
→
10/8/2026
1h 34m
No alerts
Replay Analysis
N76522BOEING Boeing 737-800
→
10/7/2026
1h 32m
No alerts
Replay Analysis
N36272BOEING Boeing 737-800
→
10/6/2026
1h 50m
No alerts
Replay Analysis
N12225BOEING Boeing 737-800
→
10/5/2026
1h 33m
No alerts
Replay Analysis
N27268BOEING Boeing 737 MAX 8
→
10/4/2026
1h 31m
No alerts
Replay Analysis
N64844BOEING Boeing 737-900
→
10/3/2026
1h 38m
No alerts
Replay Analysis
N77518BOEING Boeing 737-800
→
10/2/2026
1h 39m
No alerts
Replay Analysis
N37562BOEING Boeing 737 MAX 9
→
10/1/2026
13m
No alerts
Replay Analysis
N37562BOEING Boeing 737 MAX 9
→
10/1/2026
1h 39m
No alerts
Replay Analysis
N65832BOEING Boeing 737-900
→
9/30/2026
1h 39m
No alerts
Replay Analysis
N37287BOEING Boeing 737-800
→
9/29/2026
1h 34m
No alerts
Replay Analysis
N73278BOEING Boeing 737-800
→
9/28/2026
1h 40m
No alerts
Replay Analysis
N37541BOEING Boeing 737 MAX 9
→
9/25/2026
30m
No alerts
Replay Analysis
N37541BOEING Boeing 737 MAX 9
→
9/25/2026
1h 27m
No alerts
Replay Analysis
N77542BOEING Boeing 737-800
→
9/24/2026
1h 29m
No alerts
Replay Analysis
N33294BOEING Boeing 737-800
→
9/23/2026
1h 29m
No alerts
Replay Analysis
N37290BOEING Boeing 737-800
→
9/22/2026
1h 35m
No alerts
Replay Analysis
N14237BOEING Boeing 737-800
→
9/21/2026
3h 18m
No alerts
Replay Analysis
N87507BOEING Boeing 737-800
→
9/21/2026
12m
No alerts
Replay Analysis
N87507BOEING Boeing 737-800
→
9/21/2026
1h 33m
No alerts
Replay Analysis
N24212BOEING Boeing 737-800
→
9/20/2026
3h 19m
No alerts
Replay Analysis
N36247BOEING Boeing 737-800
→
9/20/2026
1h 27m
No alerts
Replay Analysis
N24224BOEING Boeing 737-800
→
9/19/2026
3h 24m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window