UAL504 is operated by UNITED AIRLINES INC between Baltimore/Washington International Thurgood Marshall Airport (KBWI) and San Francisco International Airport (KSFO). The flight is most often flown by a BOEING Boeing 737 MAX 8. Typical block time is 5h 1m. SkyMeter has observed 74 legs of this flight number via ADS-B.

✈
FLIGHTS
74
last 90 days
⏱
AVG DURATION
5h 1m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 8/11/2026
first → last seen
🗺
ROUTES / TYPES
7 / 5
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

4
KBWI → KSFO
61
avg 5h 33m · Baltimore/Washington International Thurgood Marshall → San Francisco
KEWR → KIAD
6
avg 1h 5m · Newark Liberty → Washington Dulles
KT41 → KSTL
1
avg 1h 33m · La Porte → St Louis Lambert
KDEN → KSNA
1
avg 2h 25m · Denver → John Wayne Airport-Orange County

Aircraft types

Equipment used on this number

5
B38M BOEING Boeing 737 MAX 8
108
B738 BOEING Boeing 737-800
15
B739 BOEING Boeing 737-900
12
B39M BOEING Boeing 737 MAX 9
11
A320 AIRBUS Airbus A320
1

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 UAL504

30
N27270BOEING Boeing 737 MAX 8
→
8/11/2026
5h 45m
No alerts
Replay Analysis
N17362BOEING Boeing 737 MAX 8
→
8/10/2026
4h 47m
No alerts
Replay Analysis
N17362BOEING Boeing 737 MAX 8
→
8/9/2026
46m
No alerts
Replay Analysis
N17362BOEING Boeing 737 MAX 8
→
8/9/2026
5h 34m
No alerts
Replay Analysis
N27334BOEING Boeing 737 MAX 8
→
8/9/2026
4h 37m
No alerts
Replay Analysis
N27334BOEING Boeing 737 MAX 8
→
8/8/2026
48m
No alerts
Replay Analysis
N27334BOEING Boeing 737 MAX 8
→
8/8/2026
5h 27m
No alerts
Replay Analysis
N14235BOEING Boeing 737-800
→
8/8/2026
5h 21m
No alerts
Replay Analysis
N37367BOEING Boeing 737 MAX 8
→
8/7/2026
5h 25m
No alerts
Replay Analysis
N47281BOEING Boeing 737 MAX 8
→
8/4/2026
5h 12m
No alerts
Replay Analysis
N17344BOEING Boeing 737 MAX 8
→
8/3/2026
4h 51m
No alerts
Replay Analysis
N17344BOEING Boeing 737 MAX 8
→
8/2/2026
51m
No alerts
Replay Analysis
N17344BOEING Boeing 737 MAX 8
→
8/2/2026
5h 42m
No alerts
Replay Analysis
N17358BOEING Boeing 737 MAX 8
→
8/2/2026
4h 16m
No alerts
Replay Analysis
N17427BOEING Boeing 737 MAX 9
→
8/1/2026
4h 49m
No alerts
Replay Analysis
N17427BOEING Boeing 737 MAX 9
→
7/31/2026
51m
No alerts
Replay Analysis
N17427BOEING Boeing 737 MAX 9
→
7/31/2026
5h 40m
No alerts
Replay Analysis
N37354BOEING Boeing 737 MAX 8
→
7/31/2026
5h 9m
No alerts
Replay Analysis
N37297BOEING Boeing 737 MAX 8
→
7/28/2026
4h 30m
No alerts
Replay Analysis
N37297BOEING Boeing 737 MAX 8
→
7/27/2026
51m
No alerts
Replay Analysis
N37297BOEING Boeing 737 MAX 8
→
7/27/2026
5h 22m
No alerts
Replay Analysis
N27258BOEING Boeing 737 MAX 8
→
7/27/2026
5h 28m
No alerts
Replay Analysis
N17432BOEING Boeing 737 MAX 9
→
7/26/2026
4h 37m
No alerts
Replay Analysis
N17432BOEING Boeing 737 MAX 9
→
7/25/2026
59m
No alerts
Replay Analysis
N17432BOEING Boeing 737 MAX 9
→
7/25/2026
5h 36m
No alerts
Replay Analysis
N17329BOEING Boeing 737 MAX 8
→
7/25/2026
5h 39m
No alerts
Replay Analysis
N17314BOEING Boeing 737 MAX 8
→
7/24/2026
5h 29m
No alerts
Replay Analysis
N47281BOEING Boeing 737 MAX 8
→
7/21/2026
5h 4m
No alerts
Replay Analysis
N27253BOEING Boeing 737 MAX 8
→
7/20/2026
5h 10m
No alerts
Replay Analysis
N37513BOEING Boeing 737 MAX 9
→
7/19/2026
5h 10m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window