SWA431 is operated by SOUTHWEST AIRLINES CO between Denver International Airport (KDEN) and Phoenix Sky Harbor International Airport (KPHX). The flight is most often flown by a BOEING Boeing 737-800. Typical block time is 1h 23m. SkyMeter has observed 123 legs of this flight number via ADS-B.

✈
FLIGHTS
123
last 90 days
⏱
AVG DURATION
1h 23m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 08/29/2026
first → last seen
🗺
ROUTES / TYPES
16 / 3
city pairs · airframes
⚠
INCIDENT RATE
1.6%
2 flagged

Routes flown

By count · last 90 days

9
KDEN → KPHX
55
avg 1h 44m · Denver → Phoenix Sky Harbor
KPHX → KONT
25
avg 1h 0m · Phoenix Sky Harbor → Ontario
KMDW → KPWM
7
avg 1h 51m · Chicago Midway → Portland International Jetport
KAUS → KBNA
6
avg 1h 49m · Austin Bergstrom → Nashville
KBNA → KPVD
3
avg 1h 58m · Nashville → Theodore Francis Green State
KAUS → KMQY
1
avg 2h 4m · Austin Bergstrom → Smyrna
KMDW → KBWI
1
avg 1h 40m · Chicago Midway → Baltimore/Washington International Thurgood Marshall
KBWI → KPWM
1
avg 1h 11m · Baltimore/Washington International Thurgood Marshall → Portland International Jetport
KCHD → KONT
1
avg 53m · Chandler → Ontario

Aircraft types

Equipment used on this number

3
B738 BOEING Boeing 737-800
47
B38M BOEING Boeing 737 MAX 8
45
B737 BOEING Boeing 737-700
41

Safety profile

Flagged flights · last 90 days

Go-arounds
1
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 SWA431

30
N957WNBOEING Boeing 737-700
→
08/29/2026
1h 24m
No alerts
Replay Analysis
N8817LBOEING Boeing 737 MAX 8
→
08/25/2026
1h 51m
No alerts
Replay Analysis
N443WNBOEING Boeing 737-700
→
08/25/2026
1h 28m
No alerts
Replay Analysis
N258WNBOEING Boeing 737-700
→
08/23/2026
19m
No alerts
Replay Analysis
N455WNBOEING Boeing 737-700
→
08/22/2026
1h 53m
No alerts
Replay Analysis
N455WNBOEING Boeing 737-700
→
08/22/2026
1h 47m
No alerts
Replay Analysis
N455WNBOEING Boeing 737-700
→
08/22/2026
52m
No alerts
Replay Analysis
N8860SBOEING Boeing 737 MAX 8
→
08/18/2026
1h 45m
No alerts
Replay Analysis
N926WNBOEING Boeing 737-700
→
08/18/2026
1h 44m
No alerts
Replay Analysis
N926WNBOEING Boeing 737-700
→
08/17/2026
1h 54m
No alerts
Replay Analysis
N926WNBOEING Boeing 737-700
→
08/17/2026
8m
No alerts
Replay Analysis
N494WNBOEING Boeing 737-700
→
08/17/2026
1h 47m
No alerts
Replay Analysis
N922WNBOEING Boeing 737-700
→
08/15/2026
2h 3m
No alerts
Replay Analysis
N566WNBOEING Boeing 737-700
→
08/15/2026
1h 44m
No alerts
Replay Analysis
N260WNBOEING Boeing 737-700
→
08/15/2026
1h 17m
No alerts
Replay Analysis
N260WNBOEING Boeing 737-700
→
08/14/2026
43m
No alerts
Replay Analysis
N260WNBOEING Boeing 737-700
→
08/14/2026
2h 1m
No alerts
Replay Analysis
N272WNBOEING Boeing 737-700
→
08/14/2026
1h 7m
No alerts
Replay Analysis
N272WNBOEING Boeing 737-700
→
08/13/2026
1h 42m
No alerts
Replay Analysis
N272WNBOEING Boeing 737-700
→
08/13/2026
34m
No alerts
Replay Analysis
N8822QBOEING Boeing 737 MAX 8
→
08/11/2026
2h 3m
△ Low approach-stability score
Replay Analysis
N7738ABOEING Boeing 737-700
→
08/11/2026
1h 34m
No alerts
Replay Analysis
N7738ABOEING Boeing 737-700
→
08/10/2026
1h 55m
No alerts
Replay Analysis
N7738ABOEING Boeing 737-700
→
08/10/2026
21m
No alerts
Replay Analysis
N437WNBOEING Boeing 737-700
→
08/10/2026
1h 10m
No alerts
Replay Analysis
N260WNBOEING Boeing 737-700
→
08/10/2026
1h 40m
↘ Diverted (inferred)
Replay Analysis
N969WNBOEING Boeing 737-700
→
08/08/2026
1h 58m
No alerts
Replay Analysis
N240WNBOEING Boeing 737-700
→
08/08/2026
1h 56m
↻ Go-around
Replay Analysis
N497WNBOEING Boeing 737-700
→
08/08/2026
1h 49m
No alerts
Replay Analysis
N491WNBOEING Boeing 737-700
→
08/07/2026
1h 23m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window