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 737-700. Typical block time is 1h 26m. SkyMeter has observed 129 legs of this flight number via ADS-B.

✈
FLIGHTS
129
last 90 days
⏱
AVG DURATION
1h 26m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 9/4/2026
first → last seen
🗺
ROUTES / TYPES
16 / 3
city pairs · airframes
⚠
INCIDENT RATE
3.1%
4 flagged

Routes flown

By count · last 90 days

9
KDEN → KPHX
51
avg 1h 44m · Denver → Phoenix Sky Harbor
KPHX → KONT
23
avg 1h 1m · Phoenix Sky Harbor → Ontario
KMDW → KPWM
13
avg 1h 51m · Chicago Midway → Portland International Jetport
KAUS → KBNA
11
avg 1h 53m · Austin Bergstrom → Nashville
KBNA → KPVD
4
avg 1h 59m · Nashville → Theodore Francis Green State
KAUS → KMQY
2
avg 1h 55m · 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
B737 BOEING Boeing 737-700
55
B38M BOEING Boeing 737 MAX 8
48
B738 BOEING Boeing 737-800
46

Safety profile

Flagged flights · last 90 days

Go-arounds
1
Unstable approach
3
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
N967WNBOEING Boeing 737-700
→
9/4/2026
1h 38m
No alerts
Replay Analysis
N8984LBOEING Boeing 737-800
→
9/2/2026
1h 46m
No alerts
Replay Analysis
N8675ABOEING Boeing 737-800
→
9/1/2026
1h 46m
△ Low approach-stability score
Replay Analysis
N203WNBOEING Boeing 737-700
→
9/1/2026
1h 55m
No alerts
Replay Analysis
N942WNBOEING Boeing 737-700
→
8/31/2026
1h 21m
No alerts
Replay Analysis
N942WNBOEING Boeing 737-700
→
8/30/2026
1h 51m
No alerts
Replay Analysis
N942WNBOEING Boeing 737-700
→
8/30/2026
28m
No alerts
Replay Analysis
N273WNBOEING Boeing 737-700
→
8/29/2026
2h 3m
No alerts
Replay Analysis
N273WNBOEING Boeing 737-700
→
8/29/2026
2h 3m
No alerts
Replay Analysis
N957WNBOEING Boeing 737-700
→
8/29/2026
1h 24m
No alerts
Replay Analysis
N957WNBOEING Boeing 737-700
→
8/28/2026
1h 46m
No alerts
Replay Analysis
N957WNBOEING Boeing 737-700
→
8/28/2026
21m
No alerts
Replay Analysis
N561WNBOEING Boeing 737-700
→
8/28/2026
56m
No alerts
Replay Analysis
N8961KBOEING Boeing 737 MAX 8
→
8/26/2026
1h 57m
No alerts
Replay Analysis
N8817LBOEING Boeing 737 MAX 8
→
8/25/2026
1h 51m
No alerts
Replay Analysis
N443WNBOEING Boeing 737-700
→
8/25/2026
1h 28m
No alerts
Replay Analysis
N443WNBOEING Boeing 737-700
→
8/24/2026
1h 51m
No alerts
Replay Analysis
N443WNBOEING Boeing 737-700
→
8/24/2026
23m
No alerts
Replay Analysis
N258WNBOEING Boeing 737-700
→
8/24/2026
1h 37m
No alerts
Replay Analysis
N258WNBOEING Boeing 737-700
→
8/23/2026
19m
No alerts
Replay Analysis
N258WNBOEING Boeing 737-700
→
8/23/2026
1h 56m
No alerts
Replay Analysis
N455WNBOEING Boeing 737-700
→
8/22/2026
1h 53m
No alerts
Replay Analysis
N455WNBOEING Boeing 737-700
→
8/22/2026
1h 47m
No alerts
Replay Analysis
N455WNBOEING Boeing 737-700
→
8/22/2026
52m
No alerts
Replay Analysis
N8955QBOEING Boeing 737 MAX 8
→
8/21/2026
14m
No alerts
Replay Analysis
N907WNBOEING Boeing 737-700
→
8/21/2026
1h 50m
No alerts
Replay Analysis
N8848QBOEING Boeing 737 MAX 8
→
8/19/2026
29m
No alerts
Replay Analysis
N8848QBOEING Boeing 737 MAX 8
→
8/19/2026
2h 20m
No alerts
Replay Analysis
N8848QBOEING Boeing 737 MAX 8
→
8/19/2026
34m
No alerts
Replay Analysis
N8860SBOEING Boeing 737 MAX 8
→
8/18/2026
1h 45m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window