Flight Status & Tracker

SWA4251

SOUTHWEST AIRLINES CO · BOS → DEN · Last tracked Oct 17, 2026

SWA4251 is a flight number operated by SOUTHWEST AIRLINES CO between General Edward Lawrence Logan International Airport (KBOS) and Denver International Airport (KDEN). SkyMeter last tracked SWA4251 on October 17, 2026. The flight is most often flown by a BOEING Boeing 737 MAX 8. Typical block time is 2h 56m. SkyMeter has observed 48 legs of this flight number via ADS-B.

SkyMeter tracks historical flight activity from ADS-B data — this is not a live gate-to-gate status feed.

✈
FLIGHTS
48
last 90 days
⏱
AVG DURATION
2h 56m
tracked time
📅
SERVICE PERIOD
6/8/2025 → 10/17/2026
first → last seen
🗺
ROUTES / TYPES
7 / 3
city pairs · airframes
⚠
INCIDENT RATE
2.1%
1 flagged

Routes flown

By count · last 90 days

3
KBOS → KDEN
21
avg 4h 23m · General Edward Lawrence Logan → Denver
KSAN → KPHX
5
avg 1h 22m · San Diego → Phoenix Sky Harbor
KTPA → KBWI
4
avg 2h 13m · Tampa → Baltimore/Washington International Thurgood Marshall

Aircraft types

Equipment used on this number

3
B38M BOEING Boeing 737 MAX 8
39
B738 BOEING Boeing 737-800
27
B737 BOEING Boeing 737-700
14

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 SWA4251

30
N8698BBOEING Boeing 737-800
→
10/17/2026
1h 26m
No alerts
Replay Analysis
N8806QBOEING Boeing 737 MAX 8
→
10/16/2026
1h 10m
No alerts
Replay Analysis
N8510EBOEING Boeing 737-800
→
10/10/2026
1h 12m
No alerts
Replay Analysis
N8673FBOEING Boeing 737-800
→
10/9/2026
1h 10m
No alerts
Replay Analysis
N8903HBOEING Boeing 737 MAX 8
→
10/6/2026
1h 28m
No alerts
Replay Analysis
N8793QBOEING Boeing 737 MAX 8
→
10/2/2026
1h 32m
No alerts
Replay Analysis
N8549ZBOEING Boeing 737-800
→
9/29/2026
3h 55m
No alerts
Replay Analysis
N459WNBOEING Boeing 737-700
→
9/26/2026
1h 50m
No alerts
Replay Analysis
N459WNBOEING Boeing 737-700
→
9/26/2026
17m
No alerts
Replay Analysis
N8910QBOEING Boeing 737 MAX 8
→
9/22/2026
4h 0m
No alerts
Replay Analysis
N8910QBOEING Boeing 737 MAX 8
→
9/22/2026
4h 10m
No alerts
Replay Analysis
N8910QBOEING Boeing 737 MAX 8
→
9/22/2026
9m
No alerts
Replay Analysis
N9001FBOEING Boeing 737 MAX 8
→
9/20/2026
4h 26m
No alerts
Replay Analysis
N257WNBOEING Boeing 737-700
→
9/19/2026
1h 33m
No alerts
Replay Analysis
N8854QBOEING Boeing 737 MAX 8
→
9/19/2026
1h 47m
No alerts
Replay Analysis
N8854QBOEING Boeing 737 MAX 8
→
9/18/2026
4h 17m
No alerts
Replay Analysis
N8854QBOEING Boeing 737 MAX 8
→
9/18/2026
2h 29m
No alerts
Replay Analysis
N8576ZBOEING Boeing 737-800
→
9/18/2026
1h 9m
No alerts
Replay Analysis
N8513FBOEING Boeing 737-800
→
9/15/2026
1h 29m
No alerts
Replay Analysis
N284WNBOEING Boeing 737-700
→
9/13/2026
13m
No alerts
Replay Analysis
N284WNBOEING Boeing 737-700
→
9/13/2026
1h 26m
No alerts
Replay Analysis
N284WNBOEING Boeing 737-700
→
9/13/2026
1h 46m
No alerts
Replay Analysis
N284WNBOEING Boeing 737-700
→
9/13/2026
5m
No alerts
Replay Analysis
N8859QBOEING Boeing 737 MAX 8
→
9/12/2026
3h 28m
No alerts
Replay Analysis
N8859QBOEING Boeing 737 MAX 8
→
9/12/2026
4h 19m
No alerts
Replay Analysis
N8859QBOEING Boeing 737 MAX 8
→
9/12/2026
50m
No alerts
Replay Analysis
N8803LBOEING Boeing 737 MAX 8
→
9/11/2026
1h 59m
No alerts
Replay Analysis
N8803LBOEING Boeing 737 MAX 8
→
9/10/2026
4h 10m
No alerts
Replay Analysis
N8803LBOEING Boeing 737 MAX 8
→
9/10/2026
2h 10m
No alerts
Replay Analysis
N8751RBOEING Boeing 737 MAX 8
→
9/8/2026
2h 28m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window