UAL391 is operated by UNITED AIRLINES INC between Fairfax County Police Heliport (26VA) and Washington Dulles International Airport (KIAD). The flight is most often flown by a BOEING Boeing 737 MAX 8. Typical block time is 3h 7m. SkyMeter has observed 9 legs of this flight number via ADS-B.

✈
FLIGHTS
9
last 90 days
⏱
AVG DURATION
3h 7m
tracked time
📅
SERVICE PERIOD
04/11/2026 → 05/31/2026
first → last seen
🗺
ROUTES / TYPES
3 / 2
city pairs · airframes
⚠
INCIDENT RATE
11.1%
1 flagged

Routes flown

By count · last 90 days

2
26VA → KIAD
1
avg 13m · Fairfax County Police Heliport → Washington Dulles
VA16 → KIAD
1
avg 7m · Centreville → Washington Dulles

Aircraft types

Equipment used on this number

2
B38M BOEING Boeing 737 MAX 8
15
B738 BOEING Boeing 737-800
2

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 17 operations of UAL391

17
N35204BOEING Boeing 737-800
→
05/31/2026
7m
△ Unstable
Replay Analysis
N77539BOEING Boeing 737-800
→
05/23/2026
4h 26m
No alerts
Replay Analysis
N27267BOEING Boeing 737 MAX 8
→
05/16/2026
1h 4m
No alerts
Replay Analysis
N27267BOEING Boeing 737 MAX 8
→
05/16/2026
4h 20m
No alerts
Replay Analysis
N27267BOEING Boeing 737 MAX 8
→
05/16/2026
1h 13m
No alerts
Replay Analysis
N47360BOEING Boeing 737 MAX 8
→
05/10/2026
33m
No alerts
Replay Analysis
N47345BOEING Boeing 737 MAX 8
→
05/03/2026
23m
No alerts
Replay Analysis
N47345BOEING Boeing 737 MAX 8
→
05/02/2026
4h 33m
No alerts
Replay Analysis
N47345BOEING Boeing 737 MAX 8
→
05/02/2026
4h 10m
No alerts
Replay Analysis
N17362BOEING Boeing 737 MAX 8
→
04/26/2026
19m
No alerts
Replay Analysis
N17362BOEING Boeing 737 MAX 8
→
04/25/2026
4h 34m
No alerts
Replay Analysis
N17362BOEING Boeing 737 MAX 8
→
04/25/2026
4h 15m
No alerts
Replay Analysis
N47280BOEING Boeing 737 MAX 8
→
04/19/2026
13m
No alerts
Replay Analysis
N47280BOEING Boeing 737 MAX 8
→
04/18/2026
4h 30m
No alerts
Replay Analysis
N27290BOEING Boeing 737 MAX 8
→
04/12/2026
19m
No alerts
Replay Analysis
N27290BOEING Boeing 737 MAX 8
→
04/11/2026
4h 24m
No alerts
Replay Analysis
N27290BOEING Boeing 737 MAX 8
→
04/11/2026
4h 44m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window