SWA3891 is operated by SOUTHWEST AIRLINES CO between St Louis Lambert International Airport (KSTL) and General Edward Lawrence Logan International Airport (KBOS). The flight is most often flown by a BOEING Boeing 737 MAX 8. Typical block time is 2h 13m. SkyMeter has observed 57 legs of this flight number via ADS-B.

✈
FLIGHTS
57
last 90 days
⏱
AVG DURATION
2h 13m
tracked time
📅
SERVICE PERIOD
07/04/2025 → 08/16/2026
first → last seen
🗺
ROUTES / TYPES
5 / 3
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

4
KSTL → KBOS
35
avg 2h 17m · St Louis Lambert → General Edward Lawrence Logan
KLAX → KLAS
2
avg 1h 44m · Los Angeles → McCarran
KPDX → KOAK
1
avg 1h 33m · Portland → Metropolitan Oakland
KSBA → KDEN
1
avg 2h 0m · Santa Barbara → Denver

Aircraft types

Equipment used on this number

3
B38M BOEING Boeing 737 MAX 8
50
B738 BOEING Boeing 737-800
6
B737 BOEING Boeing 737-700
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 SWA3891

30
N8838QBOEING Boeing 737 MAX 8
→
08/16/2026
2h 0m
No alerts
Replay Analysis
N8924QBOEING Boeing 737 MAX 8
→
08/15/2026
1h 42m
No alerts
Replay Analysis
N8989LBOEING Boeing 737 MAX 8
→
08/08/2026
1h 46m
No alerts
Replay Analysis
N8888MBOEING Boeing 737 MAX 8
→
08/03/2026
2h 23m
No alerts
Replay Analysis
N8860SBOEING Boeing 737 MAX 8
→
08/02/2026
2h 13m
No alerts
Replay Analysis
N8531QBOEING Boeing 737-800
→
07/31/2026
2h 21m
No alerts
Replay Analysis
N8970QBOEING Boeing 737 MAX 8
→
07/30/2026
2h 25m
No alerts
Replay Analysis
N1811UBOEING Boeing 737 MAX 8
→
07/29/2026
2h 24m
No alerts
Replay Analysis
N8963QBOEING Boeing 737 MAX 8
→
07/28/2026
2h 33m
No alerts
Replay Analysis
N8538VBOEING Boeing 737-800
→
07/27/2026
2h 22m
No alerts
Replay Analysis
N8824QBOEING Boeing 737 MAX 8
→
07/26/2026
2h 23m
No alerts
Replay Analysis
N8903HBOEING Boeing 737 MAX 8
→
07/24/2026
2h 39m
No alerts
Replay Analysis
N8903HBOEING Boeing 737 MAX 8
→
07/24/2026
27m
No alerts
Replay Analysis
N8864HBOEING Boeing 737 MAX 8
→
07/23/2026
2h 23m
No alerts
Replay Analysis
N8857QBOEING Boeing 737 MAX 8
→
07/22/2026
2h 18m
No alerts
Replay Analysis
N8854QBOEING Boeing 737 MAX 8
→
07/20/2026
2h 23m
No alerts
Replay Analysis
N8947QBOEING Boeing 737 MAX 8
→
07/19/2026
2h 23m
No alerts
Replay Analysis
N8875BBOEING Boeing 737 MAX 8
→
07/17/2026
2h 27m
No alerts
Replay Analysis
N8971LBOEING Boeing 737 MAX 8
→
07/16/2026
2h 18m
No alerts
Replay Analysis
N8925QBOEING Boeing 737 MAX 8
→
07/15/2026
2h 17m
No alerts
Replay Analysis
N8976KBOEING Boeing 737 MAX 8
→
07/14/2026
2h 26m
No alerts
Replay Analysis
N8918QBOEING Boeing 737 MAX 8
→
07/13/2026
2h 29m
No alerts
Replay Analysis
N8920QBOEING Boeing 737 MAX 8
→
07/12/2026
2h 20m
No alerts
Replay Analysis
N8750QBOEING Boeing 737 MAX 8
→
07/10/2026
2h 8m
No alerts
Replay Analysis
N8806QBOEING Boeing 737 MAX 8
→
07/09/2026
2h 14m
No alerts
Replay Analysis
N8853QBOEING Boeing 737 MAX 8
→
07/08/2026
2h 16m
No alerts
Replay Analysis
N9002WBOEING Boeing 737 MAX 8
→
07/07/2026
2h 34m
No alerts
Replay Analysis
N8825QBOEING Boeing 737 MAX 8
→
07/06/2026
2h 10m
No alerts
Replay Analysis
N1804UBOEING Boeing 737 MAX 8
→
07/05/2026
2h 47m
No alerts
Replay Analysis
N8894QBOEING Boeing 737 MAX 8
→
07/03/2026
2h 24m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window