SWA3951 is operated by SOUTHWEST AIRLINES CO between Seattle Tacoma International Airport (KSEA) and Chicago Midway International Airport (KMDW). The flight is most often flown by a BOEING Boeing 737 MAX 8. Typical block time is 3h 20m. SkyMeter has observed 22 legs of this flight number via ADS-B.

✈
FLIGHTS
22
last 90 days
⏱
AVG DURATION
3h 20m
tracked time
📅
SERVICE PERIOD
06/05/2025 → 06/27/2026
first → last seen
🗺
ROUTES / TYPES
5 / 3
city pairs · airframes
⚠
INCIDENT RATE
9.1%
2 flagged

Routes flown

By count · last 90 days

4
KSEA → KMDW
15
avg 3h 40m · Seattle Tacoma → Chicago Midway
KPHX → KCMH
4
avg 3h 20m · Phoenix Sky Harbor → John Glenn Columbus
KSEA → KGYY
1
avg 3h 43m · Seattle Tacoma → Gary Chicago
KSAT → KDAL
1
avg 1h 0m · San Antonio → Dallas Love Field

Aircraft types

Equipment used on this number

3
B38M BOEING Boeing 737 MAX 8
11
B738 BOEING Boeing 737-800
10
B737 BOEING Boeing 737-700
1

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
2
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 SWA3951

30
N8574ZBOEING Boeing 737-800
→
06/27/2026
3h 13m
No alerts
Replay Analysis
N8574ZBOEING Boeing 737-800
→
06/27/2026
8m
No alerts
Replay Analysis
N8546VBOEING Boeing 737-800
→
06/20/2026
3h 13m
No alerts
Replay Analysis
N8551QBOEING Boeing 737-800
→
06/13/2026
3h 24m
No alerts
Replay Analysis
N8811LBOEING Boeing 737 MAX 8
→
06/06/2026
3h 32m
No alerts
Replay Analysis
N8317MBOEING Boeing 737-800
→
06/04/2026
3h 40m
No alerts
Replay Analysis
N8600FBOEING Boeing 737-800
→
06/03/2026
3h 46m
No alerts
Replay Analysis
N8920QBOEING Boeing 737 MAX 8
→
05/28/2026
3h 50m
No alerts
Replay Analysis
N1809UBOEING Boeing 737 MAX 8
→
05/27/2026
3h 55m
No alerts
Replay Analysis
N226WNBOEING Boeing 737-700
→
05/25/2026
59m
No alerts
Replay Analysis
N8859QBOEING Boeing 737 MAX 8
→
05/21/2026
3h 38m
No alerts
Replay Analysis
N8631ABOEING Boeing 737-800
→
05/20/2026
3h 31m
No alerts
Replay Analysis
N8895QBOEING Boeing 737 MAX 8
→
05/14/2026
3h 42m
△ Unstable approach
Replay Analysis
N8772MBOEING Boeing 737 MAX 8
→
05/13/2026
3h 32m
No alerts
Replay Analysis
N8928QBOEING Boeing 737 MAX 8
→
04/30/2026
3h 40m
No alerts
Replay Analysis
N8862QBOEING Boeing 737 MAX 8
→
04/29/2026
3h 24m
No alerts
Replay Analysis
N8501VBOEING Boeing 737-800
→
04/23/2026
3h 49m
△ Unstable approach
Replay Analysis
N8752QBOEING Boeing 737 MAX 8
→
04/22/2026
3h 49m
No alerts
Replay Analysis
N8687ABOEING Boeing 737-800
→
04/16/2026
3h 37m
No alerts
Replay Analysis
N8743KBOEING Boeing 737 MAX 8
→
04/15/2026
3h 43m
No alerts
Replay Analysis
N8743KBOEING Boeing 737 MAX 8
→
04/15/2026
3h 43m
No alerts
Replay Analysis
N8629ABOEING Boeing 737-800
→
04/09/2026
3h 32m
No alerts
Replay Analysis
N8771DBOEING Boeing 737 MAX 8
→
04/08/2026
3h 25m
No alerts
Replay Analysis
N8887QBOEING Boeing 737 MAX 8
→
04/07/2026
2h 12m
No alerts
Replay Analysis
N221WNBOEING Boeing 737-700
→
04/06/2026
2h 7m
No alerts
Replay Analysis
N8927QBOEING Boeing 737 MAX 8
→
04/04/2026
2h 18m
No alerts
Replay Analysis
N8517FBOEING Boeing 737-800
→
04/04/2026
2h 7m
No alerts
Replay Analysis
N8976KBOEING Boeing 737 MAX 8
→
04/03/2026
2h 50m
No alerts
Replay Analysis
N8547VBOEING Boeing 737-800
→
04/02/2026
23m
No alerts
Replay Analysis
N8574ZBOEING Boeing 737-800
→
03/31/2026
1h 23m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window