SWA3851 is operated by SOUTHWEST AIRLINES CO between McCarran International Airport (KLAS) and St Louis Lambert International Airport (KSTL). The flight is most often flown by a BOEING Boeing 737 MAX 8. Typical block time is 2h 23m. SkyMeter has observed 94 legs of this flight number via ADS-B.

✈
FLIGHTS
94
last 90 days
⏱
AVG DURATION
2h 23m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 08/20/2026
first → last seen
🗺
ROUTES / TYPES
10 / 3
city pairs · airframes
⚠
INCIDENT RATE
1.1%
1 flagged

Routes flown

By count · last 90 days

6
KLAS → KSTL
38
avg 3h 30m · McCarran → St Louis Lambert
KPHX → KONT
10
avg 58m · Phoenix Sky Harbor → Ontario
KOMA → KBNA
9
avg 1h 20m · Eppley Airfield → Nashville
KSBA → KLAS
2
avg 55m · Santa Barbara → McCarran
45MO → KSTL
1
avg 8m · Waldmeister Farm → St Louis Lambert
KOMA → KMQY
1
avg 1h 23m · Eppley Airfield → Smyrna

Aircraft types

Equipment used on this number

3
B38M BOEING Boeing 737 MAX 8
86
B738 BOEING Boeing 737-800
51
B737 BOEING Boeing 737-700
16

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 SWA3851

30
N8654BBOEING Boeing 737-800
→
08/20/2026
1h 17m
No alerts
Replay Analysis
N8580ZBOEING Boeing 737-800
→
08/17/2026
1h 20m
No alerts
Replay Analysis
N8533SBOEING Boeing 737-800
→
08/16/2026
1h 21m
No alerts
Replay Analysis
N8687ABOEING Boeing 737-800
→
08/15/2026
1h 25m
No alerts
Replay Analysis
N8563ZBOEING Boeing 737-800
→
08/14/2026
1h 23m
△ Low approach-stability score
Replay Analysis
N8678EBOEING Boeing 737-800
→
08/13/2026
1h 17m
No alerts
Replay Analysis
N1806UBOEING Boeing 737 MAX 8
→
08/10/2026
1h 20m
No alerts
Replay Analysis
N8847QBOEING Boeing 737 MAX 8
→
08/09/2026
1h 19m
No alerts
Replay Analysis
N8845LBOEING Boeing 737 MAX 8
→
08/08/2026
1h 17m
No alerts
Replay Analysis
N8329BBOEING Boeing 737-800
→
08/07/2026
1h 21m
No alerts
Replay Analysis
N8822QBOEING Boeing 737 MAX 8
→
08/06/2026
1h 21m
No alerts
Replay Analysis
N8782QBOEING Boeing 737 MAX 8
→
08/04/2026
2h 1m
No alerts
Replay Analysis
N8782QBOEING Boeing 737 MAX 8
→
08/03/2026
1h 22m
No alerts
Replay Analysis
N8782QBOEING Boeing 737 MAX 8
→
08/03/2026
3h 24m
No alerts
Replay Analysis
N8507CBOEING Boeing 737-800
→
08/03/2026
1h 2m
No alerts
Replay Analysis
N8507CBOEING Boeing 737-800
→
08/02/2026
2h 17m
No alerts
Replay Analysis
N8507CBOEING Boeing 737-800
→
08/02/2026
25m
No alerts
Replay Analysis
N8507CBOEING Boeing 737-800
→
08/02/2026
3h 45m
No alerts
Replay Analysis
N8817LBOEING Boeing 737 MAX 8
→
08/01/2026
27m
No alerts
Replay Analysis
N8817LBOEING Boeing 737 MAX 8
→
07/31/2026
3h 10m
No alerts
Replay Analysis
N8817LBOEING Boeing 737 MAX 8
→
07/31/2026
4h 3m
No alerts
Replay Analysis
N8817LBOEING Boeing 737 MAX 8
→
07/31/2026
24m
No alerts
Replay Analysis
N8849QBOEING Boeing 737 MAX 8
→
07/31/2026
15m
No alerts
Replay Analysis
N8849QBOEING Boeing 737 MAX 8
→
07/30/2026
3h 19m
No alerts
Replay Analysis
N8849QBOEING Boeing 737 MAX 8
→
07/30/2026
3h 3m
No alerts
Replay Analysis
N8668ABOEING Boeing 737-800
→
07/28/2026
15m
No alerts
Replay Analysis
N8668ABOEING Boeing 737-800
→
07/27/2026
2h 53m
No alerts
Replay Analysis
N8668ABOEING Boeing 737-800
→
07/27/2026
23m
No alerts
Replay Analysis
N8668ABOEING Boeing 737-800
→
07/27/2026
3h 32m
No alerts
Replay Analysis
N8742MBOEING Boeing 737 MAX 8
→
07/27/2026
1h 37m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window