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 35m. SkyMeter has observed 107 legs of this flight number via ADS-B.

✈
FLIGHTS
107
last 90 days
⏱
AVG DURATION
1h 35m
tracked time
📅
SERVICE PERIOD
05/31/2025 → 07/19/2026
first → last seen
🗺
ROUTES / TYPES
13 / 3
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

7
KSFO → KPHX
32
avg 2h 11m · San Francisco → Phoenix Sky Harbor
KSAN → KLAS
12
avg 1h 18m · San Diego → McCarran
KPIT → KRSW
7
avg 2h 19m · Pittsburgh → Southwest Florida
KOAK → KSAN
5
avg 1h 53m · Metropolitan Oakland → San Diego
KLAS → KSLC
4
avg 1h 40m · McCarran → Salt Lake City
KHAF → KPHX
2
avg 2h 24m · Half Moon Bay → 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
65
B738 BOEING Boeing 737-800
24
B38M BOEING Boeing 737 MAX 8
22

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
N8579ZBOEING Boeing 737-800
→
07/19/2026
2h 14m
No alerts
Replay Analysis
N8602FBOEING Boeing 737-800
→
07/18/2026
2h 7m
No alerts
Replay Analysis
N265WNBOEING Boeing 737-700
→
07/18/2026
8m
No alerts
Replay Analysis
N265WNBOEING Boeing 737-700
→
07/17/2026
2h 12m
No alerts
Replay Analysis
N958WNBOEING Boeing 737-700
→
07/16/2026
2h 14m
No alerts
Replay Analysis
N7738ABOEING Boeing 737-700
→
07/15/2026
1h 51m
No alerts
Replay Analysis
N468WNBOEING Boeing 737-700
→
07/14/2026
2h 22m
No alerts
Replay Analysis
N288WNBOEING Boeing 737-700
→
07/13/2026
3h 13m
No alerts
Replay Analysis
N871HKBOEING Boeing 737 MAX 8
→
07/12/2026
2h 37m
No alerts
Replay Analysis
N8628ABOEING Boeing 737-800
→
07/11/2026
2h 17m
No alerts
Replay Analysis
N297WNBOEING Boeing 737-700
→
07/10/2026
2h 31m
No alerts
Replay Analysis
N7888ABOEING Boeing 737-700
→
07/09/2026
2h 10m
No alerts
Replay Analysis
N8558ZBOEING Boeing 737-800
→
07/08/2026
1h 58m
No alerts
Replay Analysis
N244WNBOEING Boeing 737-700
→
07/07/2026
2h 0m
No alerts
Replay Analysis
N275WNBOEING Boeing 737-700
→
07/06/2026
2h 5m
No alerts
Replay Analysis
N8511KBOEING Boeing 737-800
→
07/05/2026
2h 8m
No alerts
Replay Analysis
N956WNBOEING Boeing 737-700
→
07/04/2026
2h 12m
No alerts
Replay Analysis
N7736ABOEING Boeing 737-700
→
07/03/2026
2h 36m
No alerts
Replay Analysis
N7724ABOEING Boeing 737-700
→
07/02/2026
2h 19m
No alerts
Replay Analysis
N570WNBOEING Boeing 737-700
→
07/01/2026
2h 4m
No alerts
Replay Analysis
N969WNBOEING Boeing 737-700
→
06/30/2026
1h 54m
No alerts
Replay Analysis
N217JCBOEING Boeing 737-700
→
06/29/2026
2h 10m
No alerts
Replay Analysis
N8990QBOEING Boeing 737 MAX 8
→
06/28/2026
1h 49m
No alerts
Replay Analysis
N8893LBOEING Boeing 737 MAX 8
→
06/27/2026
2h 20m
No alerts
Replay Analysis
N240WNBOEING Boeing 737-700
→
06/27/2026
35m
No alerts
Replay Analysis
N240WNBOEING Boeing 737-700
→
06/26/2026
1h 36m
No alerts
Replay Analysis
N240WNBOEING Boeing 737-700
→
06/26/2026
2h 11m
No alerts
Replay Analysis
N208WNBOEING Boeing 737-700
→
06/25/2026
2h 17m
No alerts
Replay Analysis
N205WNBOEING Boeing 737-700
→
06/24/2026
2h 17m
No alerts
Replay Analysis
N211WNBOEING Boeing 737-700
→
06/23/2026
1h 55m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window