UAL684 is operated by UNITED AIRLINES INC between Washington Dulles International Airport (KIAD) and Los Angeles International Airport (KLAX). The flight is most often flown by a BOEING Boeing 737-900. Typical block time is 3h 57m. SkyMeter has observed 136 legs of this flight number via ADS-B.

✈
FLIGHTS
136
last 90 days
⏱
AVG DURATION
3h 57m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 08/21/2026
first → last seen
🗺
ROUTES / TYPES
12 / 5
city pairs · airframes
⚠
INCIDENT RATE
0.7%
1 flagged

Routes flown

By count · last 90 days

9
KIAD → KLAX
70
avg 5h 13m · Washington Dulles → Los Angeles
KLAX → KSEA
42
avg 2h 28m · Los Angeles → Seattle Tacoma
KIAD → KHHR
3
avg 5h 23m · Washington Dulles → Jack Northrop Field Hawthorne
KLAX → KFAT
2
avg 43m · Los Angeles → Fresno Yosemite
US-1410 → KSEA
1
avg 2h 46m · Sheraton Gateway Los Angeles Hotel Helipad → Seattle Tacoma
US-1412 → KSEA
1
avg 2h 18m · Skyview Center I Helipad → Seattle Tacoma
3CN5 → KLAX
1
avg 8m · Los Angeles County Sheriffs Dept South LA Heliport → Los Angeles
0CA0 → KLAX
1
avg 19m · Drew Medical Center Heliport → Los Angeles
US-1416 → KSEA
1
avg 2h 18m · Hilton Los Angeles Airport Helipad → Seattle Tacoma

Aircraft types

Equipment used on this number

5
B739 BOEING Boeing 737-900
228
B38M BOEING Boeing 737 MAX 8
30
B738 BOEING Boeing 737-800
14
B39M BOEING Boeing 737 MAX 9
8
B753 BOEING Boeing 757-300
3

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 UAL684

30
N37307BOEING Boeing 737 MAX 8
→
08/21/2026
2h 30m
No alerts
Replay Analysis
N17433BOEING Boeing 737 MAX 9
→
08/18/2026
50m
No alerts
Replay Analysis
N47293BOEING Boeing 737 MAX 8
→
08/18/2026
2h 27m
No alerts
Replay Analysis
N17331BOEING Boeing 737 MAX 8
→
08/17/2026
2h 37m
No alerts
Replay Analysis
N76523BOEING Boeing 737-800
→
08/16/2026
36m
No alerts
Replay Analysis
N27292BOEING Boeing 737 MAX 8
→
08/15/2026
2h 35m
No alerts
Replay Analysis
N47280BOEING Boeing 737 MAX 8
→
08/14/2026
2h 49m
No alerts
Replay Analysis
N68452BOEING Boeing 737-900
→
08/11/2026
45m
No alerts
Replay Analysis
N69830BOEING Boeing 737-900
→
08/11/2026
2h 39m
No alerts
Replay Analysis
N69830BOEING Boeing 737-900
→
08/10/2026
2h 24m
No alerts
Replay Analysis
N69830BOEING Boeing 737-900
→
08/10/2026
5h 4m
No alerts
Replay Analysis
N17311BOEING Boeing 737 MAX 8
→
08/10/2026
2h 28m
No alerts
Replay Analysis
N38451BOEING Boeing 737-900
→
08/10/2026
37m
No alerts
Replay Analysis
N38451BOEING Boeing 737-900
→
08/09/2026
4h 23m
No alerts
Replay Analysis
N38451BOEING Boeing 737-900
→
08/09/2026
5h 1m
No alerts
Replay Analysis
N69806BOEING Boeing 737-900
→
08/09/2026
26m
No alerts
Replay Analysis
N69806BOEING Boeing 737-900
→
08/08/2026
4h 40m
No alerts
Replay Analysis
N69806BOEING Boeing 737-900
→
08/08/2026
5h 7m
No alerts
Replay Analysis
N38451BOEING Boeing 737-900
→
08/08/2026
1h 44m
No alerts
Replay Analysis
N38451BOEING Boeing 737-900
→
08/07/2026
3h 49m
No alerts
Replay Analysis
N38451BOEING Boeing 737-900
→
08/07/2026
5h 34m
No alerts
Replay Analysis
N37420BOEING Boeing 737-900
→
08/07/2026
1h 29m
No alerts
Replay Analysis
N37420BOEING Boeing 737-900
→
08/06/2026
5h 16m
No alerts
Replay Analysis
N37420BOEING Boeing 737-900
→
08/06/2026
3h 46m
No alerts
Replay Analysis
N37464BOEING Boeing 737-900
→
08/06/2026
46m
No alerts
Replay Analysis
N37464BOEING Boeing 737-900
→
08/05/2026
5h 17m
No alerts
Replay Analysis
N37464BOEING Boeing 737-900
→
08/05/2026
4h 30m
No alerts
Replay Analysis
N66825BOEING Boeing 737-900
→
08/05/2026
26m
No alerts
Replay Analysis
N66825BOEING Boeing 737-900
→
08/04/2026
4h 46m
No alerts
Replay Analysis
N66825BOEING Boeing 737-900
→
08/04/2026
5h 12m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window