SWA4577 is operated by SOUTHWEST AIRLINES CO between Baltimore/Washington International Thurgood Marshall Airport (KBWI) and Buffalo Niagara International Airport (KBUF). The flight is most often flown by a BOEING Boeing 737 MAX 8. Typical block time is 1h 15m. SkyMeter has observed 31 legs of this flight number via ADS-B.

✈
FLIGHTS
31
last 90 days
⏱
AVG DURATION
1h 15m
tracked time
📅
SERVICE PERIOD
06/05/2025 → 07/18/2026
first → last seen
🗺
ROUTES / TYPES
5 / 2
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

4
KBWI → KBUF
22
avg 56m · Baltimore/Washington International Thurgood Marshall → Buffalo Niagara
KDAL → KMIA
5
avg 2h 29m · Dallas Love Field → Miami
64FL → KMIA
1
avg 12m · District Vi Heliport → Miami
KMCI → KLAS
1
avg 2h 40m · Kansas City → McCarran

Aircraft types

Equipment used on this number

2
B38M BOEING Boeing 737 MAX 8
24
B738 BOEING Boeing 737-800
7

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 SWA4577

30
N8875BBOEING Boeing 737 MAX 8
→
07/18/2026
52m
No alerts
Replay Analysis
N8971LBOEING Boeing 737 MAX 8
→
07/17/2026
52m
No alerts
Replay Analysis
N8918QBOEING Boeing 737 MAX 8
→
07/14/2026
1h 33m
No alerts
Replay Analysis
N8777QBOEING Boeing 737 MAX 8
→
07/12/2026
3h 3m
No alerts
Replay Analysis
N8541WBOEING Boeing 737-800
→
07/11/2026
1h 0m
No alerts
Replay Analysis
N8806QBOEING Boeing 737 MAX 8
→
07/10/2026
53m
No alerts
Replay Analysis
N8936QBOEING Boeing 737 MAX 8
→
07/07/2026
48m
No alerts
Replay Analysis
N8974KBOEING Boeing 737 MAX 8
→
07/06/2026
12m
No alerts
Replay Analysis
N8974KBOEING Boeing 737 MAX 8
→
07/05/2026
2h 33m
No alerts
Replay Analysis
N8974KBOEING Boeing 737 MAX 8
→
07/05/2026
14m
No alerts
Replay Analysis
N8894QBOEING Boeing 737 MAX 8
→
07/04/2026
1h 4m
No alerts
Replay Analysis
N8729HBOEING Boeing 737 MAX 8
→
07/03/2026
46m
No alerts
Replay Analysis
N8679ABOEING Boeing 737-800
→
06/30/2026
53m
No alerts
Replay Analysis
N8940QBOEING Boeing 737 MAX 8
→
06/28/2026
2h 33m
No alerts
Replay Analysis
N8605EBOEING Boeing 737-800
→
06/28/2026
54m
No alerts
Replay Analysis
N8936QBOEING Boeing 737 MAX 8
→
06/26/2026
54m
No alerts
Replay Analysis
N8522PBOEING Boeing 737-800
→
06/23/2026
44m
No alerts
Replay Analysis
N8778QBOEING Boeing 737 MAX 8
→
06/21/2026
2h 15m
No alerts
Replay Analysis
N8577ZBOEING Boeing 737-800
→
06/21/2026
55m
No alerts
Replay Analysis
N8811LBOEING Boeing 737 MAX 8
→
06/20/2026
57m
No alerts
Replay Analysis
N8803LBOEING Boeing 737 MAX 8
→
06/19/2026
49m
No alerts
Replay Analysis
N8815LBOEING Boeing 737 MAX 8
→
06/16/2026
56m
No alerts
Replay Analysis
N8711QBOEING Boeing 737 MAX 8
→
06/14/2026
2h 22m
No alerts
Replay Analysis
N8872QBOEING Boeing 737 MAX 8
→
06/14/2026
58m
No alerts
Replay Analysis
N8939QBOEING Boeing 737 MAX 8
→
06/12/2026
58m
No alerts
Replay Analysis
N8950LBOEING Boeing 737 MAX 8
→
06/09/2026
56m
No alerts
Replay Analysis
N8987QBOEING Boeing 737 MAX 8
→
06/07/2026
2h 11m
No alerts
Replay Analysis
N8694EBOEING Boeing 737-800
→
06/07/2026
1h 0m
No alerts
Replay Analysis
N1802UBOEING Boeing 737 MAX 8
→
06/06/2026
52m
No alerts
Replay Analysis
N8740ABOEING Boeing 737 MAX 8
→
06/05/2026
51m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window