SWA3456 is operated by SOUTHWEST AIRLINES CO between Denver International Airport (KDEN) and Nashville International Airport (KBNA). The flight is most often flown by a BOEING Boeing 737-800. Typical block time is 1h 49m. SkyMeter has observed 67 legs of this flight number via ADS-B.

✈
FLIGHTS
67
last 90 days
⏱
AVG DURATION
1h 49m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 08/17/2026
first → last seen
🗺
ROUTES / TYPES
10 / 3
city pairs · airframes
⚠
INCIDENT RATE
1.5%
1 flagged

Routes flown

By count · last 90 days

7
KDEN → KBNA
16
avg 2h 29m · Denver → Nashville
KMKE → KSTL
10
avg 55m · General Mitchell → St Louis Lambert
KRNO → KPHX
8
avg 2h 4m · Reno Tahoe → Phoenix Sky Harbor
KRNO → KMDW
7
avg 3h 39m · Reno Tahoe → Chicago Midway
KDAL → KSTL
7
avg 1h 28m · Dallas Love Field → St Louis Lambert
KMDW → KBOS
6
avg 1h 50m · Chicago Midway → General Edward Lawrence Logan
KSTL → KBNA
5
avg 1h 1m · St Louis Lambert → Nashville

Aircraft types

Equipment used on this number

3
B738 BOEING Boeing 737-800
46
B38M BOEING Boeing 737 MAX 8
27
B737 BOEING Boeing 737-700
18

Safety profile

Flagged flights · last 90 days

Go-arounds
1
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 SWA3456

30
N8673FBOEING Boeing 737-800
→
08/18/2026
54m
No alerts
Replay Analysis
N8673FBOEING Boeing 737-800
→
08/17/2026
1h 0m
No alerts
Replay Analysis
N8673FBOEING Boeing 737-800
→
08/17/2026
1h 55m
No alerts
Replay Analysis
N959WNBOEING Boeing 737-700
→
08/15/2026
1h 47m
No alerts
Replay Analysis
N959WNBOEING Boeing 737-700
→
08/15/2026
9m
No alerts
Replay Analysis
N8550QBOEING Boeing 737-800
→
08/15/2026
1h 17m
No alerts
Replay Analysis
N8550QBOEING Boeing 737-800
→
08/14/2026
46m
No alerts
Replay Analysis
N8550QBOEING Boeing 737-800
→
08/14/2026
2h 4m
No alerts
Replay Analysis
N8655DBOEING Boeing 737-800
→
08/14/2026
2h 16m
No alerts
Replay Analysis
N8655DBOEING Boeing 737-800
→
08/13/2026
14m
No alerts
Replay Analysis
N8654BBOEING Boeing 737-800
→
08/11/2026
1h 16m
No alerts
Replay Analysis
N8654BBOEING Boeing 737-800
→
08/10/2026
27m
No alerts
Replay Analysis
N8654BBOEING Boeing 737-800
→
08/10/2026
2h 30m
No alerts
Replay Analysis
N8654BBOEING Boeing 737-800
→
08/10/2026
44m
No alerts
Replay Analysis
N923WNBOEING Boeing 737-700
→
08/08/2026
1h 41m
No alerts
Replay Analysis
N923WNBOEING Boeing 737-700
→
08/08/2026
22m
No alerts
Replay Analysis
N8609ABOEING Boeing 737-800
→
08/08/2026
1h 20m
No alerts
Replay Analysis
N8609ABOEING Boeing 737-800
→
08/07/2026
50m
No alerts
Replay Analysis
N8609ABOEING Boeing 737-800
→
08/07/2026
13m
No alerts
Replay Analysis
N8609ABOEING Boeing 737-800
→
08/07/2026
2h 25m
No alerts
Replay Analysis
N8632ABOEING Boeing 737-800
→
08/07/2026
1h 29m
No alerts
Replay Analysis
N8632ABOEING Boeing 737-800
→
08/06/2026
24m
No alerts
Replay Analysis
N8632ABOEING Boeing 737-800
→
08/06/2026
1h 54m
No alerts
Replay Analysis
N8859QBOEING Boeing 737 MAX 8
→
08/03/2026
53m
No alerts
Replay Analysis
N8859QBOEING Boeing 737 MAX 8
→
08/02/2026
40m
No alerts
Replay Analysis
N8859QBOEING Boeing 737 MAX 8
→
08/02/2026
1h 34m
No alerts
Replay Analysis
N8991SBOEING Boeing 737 MAX 8
→
07/29/2026
3h 10m
No alerts
Replay Analysis
N8655DBOEING Boeing 737-800
→
07/28/2026
2h 14m
No alerts
Replay Analysis
N8748QBOEING Boeing 737 MAX 8
→
07/27/2026
21m
No alerts
Replay Analysis
N8748QBOEING Boeing 737 MAX 8
→
07/26/2026
1h 8m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window