SWA4237 is operated by SOUTHWEST AIRLINES CO between San Francisco International Airport (KSFO) and Phoenix Sky Harbor International Airport (KPHX). The flight is most often flown by a BOEING Boeing 737-700. Typical block time is 1h 54m. SkyMeter has observed 74 legs of this flight number via ADS-B.

✈
FLIGHTS
74
last 90 days
⏱
AVG DURATION
1h 54m
tracked time
📅
SERVICE PERIOD
5/31/2025 → 9/8/2026
first → last seen
🗺
ROUTES / TYPES
11 / 3
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

7
KSFO → KPHX
37
avg 2h 16m · San Francisco → Phoenix Sky Harbor
KLAS → KSAN
10
avg 1h 27m · McCarran → San Diego
KPIT → KRSW
7
avg 2h 17m · Pittsburgh → Southwest Florida
KBNA → KMSY
4
avg 1h 8m · Nashville → Louis Armstrong New Orleans
KHAF → KPHX
4
avg 2h 25m · Half Moon Bay → Phoenix Sky Harbor
US-2299 → KPHX
1
avg 11m · Fountain Hills → Phoenix Sky Harbor
1AZ7 → KPHX
1
avg 8m · S R P Tolleson Center Heliport → Phoenix Sky Harbor

Aircraft types

Equipment used on this number

3
B737 BOEING Boeing 737-700
45
B738 BOEING Boeing 737-800
18
B38M BOEING Boeing 737 MAX 8
15

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 SWA4237

30
N8899HBOEING Boeing 737 MAX 8
→
9/8/2026
1h 22m
No alerts
Replay Analysis
N8899HBOEING Boeing 737 MAX 8
→
9/8/2026
8m
No alerts
Replay Analysis
N8301JBOEING Boeing 737-800
→
9/2/2026
1h 2m
No alerts
Replay Analysis
N8301JBOEING Boeing 737-800
→
9/2/2026
29m
No alerts
Replay Analysis
N8567ZBOEING Boeing 737-800
→
9/1/2026
1h 26m
No alerts
Replay Analysis
N8993QBOEING Boeing 737 MAX 8
→
8/31/2026
1h 5m
No alerts
Replay Analysis
N8678EBOEING Boeing 737-800
→
8/26/2026
1h 48m
No alerts
Replay Analysis
N8309CBOEING Boeing 737-800
→
8/25/2026
1h 45m
No alerts
Replay Analysis
N8309CBOEING Boeing 737-800
→
8/25/2026
18m
No alerts
Replay Analysis
N8805LBOEING Boeing 737 MAX 8
→
8/24/2026
1h 11m
No alerts
Replay Analysis
N8871QBOEING Boeing 737 MAX 8
→
8/19/2026
1h 32m
No alerts
Replay Analysis
N8328ABOEING Boeing 737-800
→
8/18/2026
1h 45m
No alerts
Replay Analysis
N8810LBOEING Boeing 737 MAX 8
→
8/17/2026
1h 5m
No alerts
Replay Analysis
N8741LBOEING Boeing 737 MAX 8
→
8/11/2026
1h 22m
No alerts
Replay Analysis
N8919KBOEING Boeing 737 MAX 8
→
8/10/2026
1h 10m
No alerts
Replay Analysis
N8613KBOEING Boeing 737-800
→
8/5/2026
1h 29m
No alerts
Replay Analysis
N8900LBOEING Boeing 737 MAX 8
→
8/4/2026
1h 2m
No alerts
Replay Analysis
N944WNBOEING Boeing 737-700
→
8/3/2026
2h 15m
No alerts
Replay Analysis
N8726HBOEING Boeing 737 MAX 8
→
8/2/2026
1h 52m
No alerts
Replay Analysis
N8326FBOEING Boeing 737-800
→
8/1/2026
1h 47m
No alerts
Replay Analysis
N556WNBOEING Boeing 737-700
→
7/31/2026
2h 17m
No alerts
Replay Analysis
N947WNBOEING Boeing 737-700
→
7/31/2026
11m
No alerts
Replay Analysis
N947WNBOEING Boeing 737-700
→
7/30/2026
2h 0m
No alerts
Replay Analysis
N439WNBOEING Boeing 737-700
→
7/29/2026
2h 6m
No alerts
Replay Analysis
N225WNBOEING Boeing 737-700
→
7/28/2026
6m
No alerts
Replay Analysis
N225WNBOEING Boeing 737-700
→
7/28/2026
2h 35m
No alerts
Replay Analysis
N944WNBOEING Boeing 737-700
→
7/27/2026
2h 6m
No alerts
Replay Analysis
N8667DBOEING Boeing 737-800
→
7/26/2026
2h 6m
No alerts
Replay Analysis
N8308KBOEING Boeing 737-800
→
7/25/2026
2h 2m
No alerts
Replay Analysis
N217JCBOEING Boeing 737-700
→
7/24/2026
3h 7m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window