SWA4231 is operated by SOUTHWEST AIRLINES CO between Norman Y. Mineta San Jose International Airport (KSJC) and Baltimore/Washington International Thurgood Marshall Airport (KBWI). The flight is most often flown by a BOEING Boeing 737-800. Typical block time is 5h 11m. SkyMeter has observed 25 legs of this flight number via ADS-B.

✈
FLIGHTS
25
last 90 days
⏱
AVG DURATION
5h 11m
tracked time
📅
SERVICE PERIOD
04/17/2026 → 06/03/2026
first → last seen
🗺
ROUTES / TYPES
2 / 2
city pairs · airframes
⚠
INCIDENT RATE
4.0%
1 flagged

Routes flown

By count · last 90 days

2
KSJC → KBWI
24
avg 5h 12m · Norman Y. Mineta San Jose → Baltimore/Washington International Thurgood Marshall
KSJC → KGAI
1
avg 4h 46m · Norman Y. Mineta San Jose → Montgomery County Airpark

Aircraft types

Equipment used on this number

2
B738 BOEING Boeing 737-800
13
B38M BOEING Boeing 737 MAX 8
12

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 25 operations of SWA4231

25
N8626BBOEING Boeing 737-800
→
06/03/2026
4h 56m
No alerts
Replay Analysis
N8964LBOEING Boeing 737 MAX 8
→
06/02/2026
5h 25m
No alerts
Replay Analysis
N8966SBOEING Boeing 737 MAX 8
→
06/01/2026
5h 8m
No alerts
Replay Analysis
N8318FBOEING Boeing 737-800
→
05/31/2026
5h 16m
No alerts
Replay Analysis
N8306HBOEING Boeing 737-800
→
05/29/2026
5h 35m
No alerts
Replay Analysis
N8520QBOEING Boeing 737-800
→
05/28/2026
5h 15m
No alerts
Replay Analysis
N8581ZBOEING Boeing 737-800
→
05/27/2026
5h 37m
No alerts
Replay Analysis
N8844QBOEING Boeing 737 MAX 8
→
05/26/2026
5h 6m
No alerts
Replay Analysis
N8566ZBOEING Boeing 737-800
→
05/25/2026
4h 49m
No alerts
Replay Analysis
N8853QBOEING Boeing 737 MAX 8
→
05/24/2026
5h 19m
No alerts
Replay Analysis
N8892SBOEING Boeing 737 MAX 8
→
05/23/2026
5h 6m
No alerts
Replay Analysis
N8899HBOEING Boeing 737 MAX 8
→
05/22/2026
4h 46m
△ Unstable
Replay Analysis
N8906KBOEING Boeing 737 MAX 8
→
05/21/2026
5h 28m
No alerts
Replay Analysis
N8878LBOEING Boeing 737 MAX 8
→
05/20/2026
5h 13m
No alerts
Replay Analysis
N8537ZBOEING Boeing 737-800
→
05/18/2026
5h 1m
No alerts
Replay Analysis
N8902QBOEING Boeing 737 MAX 8
→
05/17/2026
5h 33m
No alerts
Replay Analysis
N8675ABOEING Boeing 737-800
→
05/15/2026
5h 1m
No alerts
Replay Analysis
N8639BBOEING Boeing 737-800
→
05/14/2026
5h 11m
No alerts
Replay Analysis
N8911QBOEING Boeing 737 MAX 8
→
04/25/2026
5h 17m
No alerts
Replay Analysis
N8657BBOEING Boeing 737-800
→
04/23/2026
4h 53m
No alerts
Replay Analysis
N8814KBOEING Boeing 737 MAX 8
→
04/21/2026
5h 20m
No alerts
Replay Analysis
N8316HBOEING Boeing 737-800
→
04/20/2026
5h 4m
No alerts
Replay Analysis
N8326FBOEING Boeing 737-800
→
04/19/2026
5h 13m
No alerts
Replay Analysis
N8558ZBOEING Boeing 737-800
→
04/18/2026
5h 17m
No alerts
Replay Analysis
N8937QBOEING Boeing 737 MAX 8
→
04/17/2026
4h 54m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window