UAL391 is operated by UNITED AIRLINES INC between Burlington International Airport (KBTV) and Denver International Airport (KDEN). The flight is most often flown by a BOEING Boeing 737-800. Typical block time is 2h 54m. SkyMeter has observed 41 legs of this flight number via ADS-B.

✈
FLIGHTS
41
last 90 days
⏱
AVG DURATION
2h 54m
tracked time
📅
SERVICE PERIOD
5/31/2025 → 9/5/2026
first → last seen
🗺
ROUTES / TYPES
13 / 3
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

10
KBTV → KDEN
14
avg 4h 10m · Burlington → Denver
74VA → KIAD
1
avg 22m · Inova Fair Oaks Hospital Heliport → Washington Dulles
KBTV → KLNK
1
avg 4h 14m · Burlington → Lincoln
KLNK → KDEN
1
avg 1h 32m · Lincoln → Denver
KBTV → KCLE
1
avg 2h 0m · Burlington → Cleveland Hopkins
US-1162 → KDEN
1
avg 17m · Devoe → Denver
K18V → KDEN
1
avg 12m · Platte Valley Airpark → Denver
US-0174 → KDEN
1
avg 17m · Aurora Airpark → Denver
1CO8 → KDEN
1
avg 14m · Everitt → Denver
34VA → KIAD
1
avg 5m · Loudoun Hospital Center Heliport → Washington Dulles

Aircraft types

Equipment used on this number

3
B738 BOEING Boeing 737-800
68
B38M BOEING Boeing 737 MAX 8
3
B739 BOEING Boeing 737-900
2

Safety profile

Flagged flights · last 90 days

Go-arounds
0
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 UAL391

30
N77518BOEING Boeing 737-800
→
9/5/2026
29m
No alerts
Replay Analysis
N77518BOEING Boeing 737-800
→
9/4/2026
3h 34m
No alerts
Replay Analysis
N12238BOEING Boeing 737-800
→
9/4/2026
1h 45m
No alerts
Replay Analysis
N13227BOEING Boeing 737-800
→
9/3/2026
24m
No alerts
Replay Analysis
N13227BOEING Boeing 737-800
→
9/2/2026
3h 36m
No alerts
Replay Analysis
N13227BOEING Boeing 737-800
→
9/2/2026
4h 1m
No alerts
Replay Analysis
N36207BOEING Boeing 737-800
→
9/1/2026
1h 59m
No alerts
Replay Analysis
N34222BOEING Boeing 737-800
→
9/1/2026
16m
No alerts
Replay Analysis
N34222BOEING Boeing 737-800
→
8/31/2026
3h 35m
No alerts
Replay Analysis
N12225BOEING Boeing 737-800
→
8/31/2026
48m
No alerts
Replay Analysis
N12225BOEING Boeing 737-800
→
8/30/2026
4h 28m
No alerts
Replay Analysis
N12225BOEING Boeing 737-800
→
8/30/2026
3h 40m
No alerts
Replay Analysis
N87527BOEING Boeing 737-800
→
8/30/2026
42m
No alerts
Replay Analysis
N87527BOEING Boeing 737-800
→
8/29/2026
4h 24m
No alerts
Replay Analysis
N87527BOEING Boeing 737-800
→
8/29/2026
3h 41m
No alerts
Replay Analysis
N68807BOEING Boeing 737-900
→
8/29/2026
14m
No alerts
Replay Analysis
N68807BOEING Boeing 737-900
→
8/28/2026
3h 32m
No alerts
Replay Analysis
N76517BOEING Boeing 737-800
→
8/28/2026
12m
No alerts
Replay Analysis
N76517BOEING Boeing 737-800
→
8/27/2026
2h 9m
No alerts
Replay Analysis
N77518BOEING Boeing 737-800
→
8/26/2026
3h 40m
No alerts
Replay Analysis
N14214BOEING Boeing 737-800
→
8/26/2026
17m
No alerts
Replay Analysis
N14214BOEING Boeing 737-800
→
8/25/2026
3h 39m
No alerts
Replay Analysis
N39297BOEING Boeing 737-800
→
8/25/2026
55m
No alerts
Replay Analysis
N39297BOEING Boeing 737-800
→
8/24/2026
4h 32m
No alerts
Replay Analysis
N39297BOEING Boeing 737-800
→
8/24/2026
3h 37m
No alerts
Replay Analysis
N17229BOEING Boeing 737-800
→
8/24/2026
2h 44m
No alerts
Replay Analysis
N17229BOEING Boeing 737-800
→
8/23/2026
4h 6m
No alerts
Replay Analysis
N17229BOEING Boeing 737-800
→
8/23/2026
1h 21m
No alerts
Replay Analysis
N77520BOEING Boeing 737-800
→
8/23/2026
57m
No alerts
Replay Analysis
N77520BOEING Boeing 737-800
→
8/22/2026
4h 29m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window