UAL3906

UNITED AIRLINES INC · IAD → SFO

UAL3906 is operated by UNITED AIRLINES INC between Washington Dulles International Airport (KIAD) and San Francisco International Airport (KSFO). The flight is most often flown by a BOEING Boeing 777-200. Typical block time is 3h 0m. SkyMeter has observed 28 legs of this flight number via ADS-B.

✈
FLIGHTS
28
last 90 days
⏱
AVG DURATION
3h 0m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 08/19/2026
first → last seen
🗺
ROUTES / TYPES
23 / 10
city pairs · airframes
⚠
INCIDENT RATE
3.6%
1 flagged

Routes flown

By count · last 90 days

10
KEWR → KORD
2
avg 2h 35m · Newark Liberty → Chicago O'Hare
KIAD → KSFO
2
avg 5h 40m · Washington Dulles → San Francisco
KLHW → KRDU
1
avg 1h 4m · Wright AAF (Fort Stewart)/Midcoast → Raleigh Durham
KIDA → KDEN
1
avg 1h 16m · Idaho Falls → Denver
PHNL → KSFO
1
avg 5h 8m · Daniel K Inouye → San Francisco
KIAH → KAUS
1
avg 35m · George Bush Intercontinental Houston → Austin Bergstrom
KLAX → KSNA
1
avg 32m · Los Angeles → John Wayne Airport-Orange County
KCLE → KCMH
1
avg 22m · Cleveland Hopkins → John Glenn Columbus
KBOS → KEWR
1
avg 49m · General Edward Lawrence Logan → Newark Liberty
KSTL → KORD
1
avg 1h 8m · St Louis Lambert → Chicago O'Hare

Aircraft types

Equipment used on this number

10
B772 BOEING Boeing 777-200
5
B739 BOEING Boeing 737-900
5
B78X BOEING Boeing 787-10 Dreamliner
5
A320 AIRBUS Airbus A320
4
B789 BOEING Boeing 787-9 Dreamliner
3
B38M BOEING Boeing 737 MAX 8
2
A319 AIRBUS Airbus A319
2
B77W BOEING Boeing 777-300ER
2
A21N AIRBUS Airbus A321 Neo
2
B753 BOEING Boeing 757-300
1

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 UAL3906

30
N38424BOEING Boeing 737-900
→
08/19/2026
3h 37m
No alerts
Replay Analysis
N457UAAIRBUS Airbus A320
→
08/16/2026
1h 51m
No alerts
Replay Analysis
N68805BOEING Boeing 737-900
→
08/14/2026
12m
No alerts
Replay Analysis
N68805BOEING Boeing 737-900
→
08/14/2026
2h 36m
No alerts
Replay Analysis
N437UAAIRBUS Airbus A320
→
08/12/2026
2h 13m
No alerts
Replay Analysis
N27261BOEING Boeing 737 MAX 8
→
08/11/2026
5h 7m
No alerts
Replay Analysis
N27261BOEING Boeing 737 MAX 8
→
08/10/2026
1h 44m
No alerts
Replay Analysis
N796UABOEING Boeing 777-200
→
08/06/2026
3h 54m
No alerts
Replay Analysis
N796UABOEING Boeing 777-200
→
08/05/2026
2h 9m
No alerts
Replay Analysis
N796UABOEING Boeing 777-200
→
08/05/2026
6h 4m
No alerts
Replay Analysis
N29961BOEING Boeing 787-9 Dreamliner
→
08/05/2026
9h 30m
△ Low approach-stability score
Replay Analysis
N24976BOEING Boeing 787-9 Dreamliner
→
08/01/2026
54m
No alerts
Replay Analysis
N73278BOEING Boeing 737-800
→
07/28/2026
1h 15m
No alerts
Replay Analysis
N877UAAIRBUS Airbus A319
→
07/21/2026
1h 3m
No alerts
Replay Analysis
N12006BOEING Boeing 787-10 Dreamliner
→
07/16/2026
4h 17m
No alerts
Replay Analysis
N29989BOEING Boeing 787-9 Dreamliner
→
07/15/2026
10h 10m
No alerts
Replay Analysis
N786UABOEING Boeing 777-200
→
07/12/2026
1h 10m
No alerts
Replay Analysis
N14531AIRBUS Airbus A321 Neo
→
07/05/2026
1h 8m
No alerts
Replay Analysis
N432UAAIRBUS Airbus A320
→
07/04/2026
22m
No alerts
Replay Analysis
N490UAAIRBUS Airbus A320
→
06/27/2026
34m
No alerts
Replay Analysis
N14001BOEING Boeing 787-10 Dreamliner
→
06/22/2026
58m
No alerts
Replay Analysis
N14001BOEING Boeing 787-10 Dreamliner
→
06/21/2026
1h 35m
No alerts
Replay Analysis
N14001BOEING Boeing 787-10 Dreamliner
→
06/21/2026
2h 34m
No alerts
Replay Analysis
N74856BOEING Boeing 757-300
→
06/20/2026
6h 5m
No alerts
Replay Analysis
N2737UBOEING Boeing 777-300ER
→
06/17/2026
5h 26m
No alerts
Replay Analysis
N13013BOEING Boeing 787-10 Dreamliner
→
06/14/2026
2h 25m
No alerts
Replay Analysis
N24505AIRBUS Airbus A321 Neo
→
06/12/2026
32m
No alerts
Replay Analysis
N37464BOEING Boeing 737-900
→
06/12/2026
48m
No alerts
Replay Analysis
N216UABOEING Boeing 777-200
→
06/10/2026
3h 32m
No alerts
Replay Analysis
N63890BOEING Boeing 737-900
→
06/04/2026
1h 33m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window