Flight Status & Tracker

UAL1639

UNITED AIRLINES INC · DEN → STL · Last tracked Oct 23, 2026

UAL1639 is a flight number operated by UNITED AIRLINES INC between Denver International Airport (KDEN) and St Louis Lambert International Airport (KSTL). SkyMeter last tracked UAL1639 on October 23, 2026. The flight is most often flown by a AIRBUS Airbus A319. Typical block time is 1h 36m. SkyMeter has observed 110 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
110
last 90 days
⏱
AVG DURATION
1h 36m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 10/23/2026
first → last seen
🗺
ROUTES / TYPES
9 / 2
city pairs · airframes
⚠
INCIDENT RATE
0.9%
1 flagged

Routes flown

By count · last 90 days

5
KDEN → KSTL
74
avg 1h 57m · Denver → St Louis Lambert
KSTL → KORD
6
avg 1h 0m · St Louis Lambert → Chicago O'Hare
LL95 → KORD
1
avg 20m · Clarke Heliport → Chicago O'Hare
IL70 → KORD
1
avg 11m · Wgn-Tv Heliport → Chicago O'Hare
KDEN → KORD
1
avg 5h 21m · Denver → Chicago O'Hare

Aircraft types

Equipment used on this number

2
A319 AIRBUS Airbus A319
72
A320 AIRBUS Airbus A320
52

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 UAL1639

30
N854UAAIRBUS Airbus A319
→
10/23/2026
1h 58m
No alerts
Replay Analysis
N829UAAIRBUS Airbus A319
→
10/22/2026
1h 59m
No alerts
Replay Analysis
N804UAAIRBUS Airbus A319
→
10/20/2026
1h 52m
No alerts
Replay Analysis
N899UAAIRBUS Airbus A319
→
10/18/2026
1h 51m
No alerts
Replay Analysis
N432UAAIRBUS Airbus A320
→
10/18/2026
2h 20m
No alerts
Replay Analysis
N895UAAIRBUS Airbus A319
→
10/16/2026
2h 4m
No alerts
Replay Analysis
N453UAAIRBUS Airbus A320
→
10/15/2026
1h 52m
No alerts
Replay Analysis
N896UAAIRBUS Airbus A319
→
10/10/2026
1h 59m
No alerts
Replay Analysis
N842UAAIRBUS Airbus A319
→
10/9/2026
2h 4m
No alerts
Replay Analysis
N851UAAIRBUS Airbus A319
→
10/8/2026
1h 57m
No alerts
Replay Analysis
N844UAAIRBUS Airbus A319
→
10/7/2026
2h 4m
No alerts
Replay Analysis
N832UAAIRBUS Airbus A319
→
10/6/2026
1h 56m
No alerts
Replay Analysis
N847UAAIRBUS Airbus A319
→
10/5/2026
2h 2m
No alerts
Replay Analysis
N840UAAIRBUS Airbus A319
→
10/4/2026
1h 54m
No alerts
Replay Analysis
N822UAAIRBUS Airbus A319
→
10/3/2026
1h 59m
No alerts
Replay Analysis
N844UAAIRBUS Airbus A319
→
10/2/2026
2h 3m
No alerts
Replay Analysis
N844UAAIRBUS Airbus A319
→
10/2/2026
18m
No alerts
Replay Analysis
N840UAAIRBUS Airbus A319
→
10/1/2026
2h 2m
No alerts
Replay Analysis
N896UAAIRBUS Airbus A319
→
9/30/2026
2h 7m
No alerts
Replay Analysis
N820UAAIRBUS Airbus A319
→
9/29/2026
1h 54m
No alerts
Replay Analysis
N874UAAIRBUS Airbus A319
→
9/28/2026
2h 2m
No alerts
Replay Analysis
N873UAAIRBUS Airbus A319
→
9/27/2026
2h 3m
△ Low approach-stability score
Replay Analysis
N828UAAIRBUS Airbus A319
→
9/26/2026
2h 1m
No alerts
Replay Analysis
N845UAAIRBUS Airbus A319
→
9/25/2026
1h 57m
No alerts
Replay Analysis
N892UAAIRBUS Airbus A319
→
9/24/2026
1h 52m
No alerts
Replay Analysis
N447UAAIRBUS Airbus A320
→
9/23/2026
1h 50m
No alerts
Replay Analysis
N440UAAIRBUS Airbus A320
→
9/22/2026
1h 53m
No alerts
Replay Analysis
N481UAAIRBUS Airbus A320
→
9/21/2026
1h 51m
No alerts
Replay Analysis
N446UAAIRBUS Airbus A320
→
9/20/2026
1h 58m
No alerts
Replay Analysis
N492UAAIRBUS Airbus A320
→
9/19/2026
1h 57m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window