SWA3901 is operated by SOUTHWEST AIRLINES CO between San Francisco International Airport (KSFO) and Chicago Midway International Airport (KMDW). The flight is most often flown by a BOEING Boeing 737 MAX 8. Typical block time is 2h 5m. SkyMeter has observed 51 legs of this flight number via ADS-B.

✈
FLIGHTS
51
last 90 days
⏱
AVG DURATION
2h 5m
tracked time
📅
SERVICE PERIOD
6/1/2025 → 8/14/2026
first → last seen
🗺
ROUTES / TYPES
9 / 3
city pairs · airframes
⚠
INCIDENT RATE
2.0%
1 flagged

Routes flown

By count · last 90 days

6
KSFO → KMDW
15
avg 4h 20m · San Francisco → Chicago Midway
KLAS → KRNO
9
avg 1h 29m · McCarran → Reno Tahoe
KRDU → KBWI
6
avg 51m · Raleigh Durham → Baltimore/Washington International Thurgood Marshall
KPHX → KSNA
6
avg 1h 1m · Phoenix Sky Harbor → John Wayne Airport-Orange County
KSTS → KSAN
5
avg 1h 22m · Charles M. Schulz Sonoma County → San Diego
KDAL → KTPA
2
avg 2h 3m · Dallas Love Field → Tampa

Aircraft types

Equipment used on this number

3
B38M BOEING Boeing 737 MAX 8
27
B738 BOEING Boeing 737-800
13
B737 BOEING Boeing 737-700
11

Safety profile

Flagged flights · last 90 days

Go-arounds
0
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 SWA3901

30
N256WNBOEING Boeing 737-700
→
8/14/2026
1h 29m
No alerts
Replay Analysis
N555LVBOEING Boeing 737-700
→
8/11/2026
1h 22m
No alerts
Replay Analysis
N939WNBOEING Boeing 737-700
→
8/10/2026
1h 21m
No alerts
Replay Analysis
N480WNBOEING Boeing 737-700
→
8/8/2026
1h 18m
No alerts
Replay Analysis
N7741CBOEING Boeing 737-700
→
8/7/2026
1h 17m
No alerts
Replay Analysis
N8925QBOEING Boeing 737 MAX 8
→
8/2/2026
1h 17m
No alerts
Replay Analysis
N8925QBOEING Boeing 737 MAX 8
→
8/2/2026
19m
No alerts
Replay Analysis
N8523WBOEING Boeing 737-800
→
7/29/2026
4h 7m
No alerts
Replay Analysis
N8669BBOEING Boeing 737-800
→
7/28/2026
4h 22m
No alerts
Replay Analysis
N8306HBOEING Boeing 737-800
→
7/26/2026
1h 30m
No alerts
Replay Analysis
N8306HBOEING Boeing 737-800
→
7/26/2026
7m
No alerts
Replay Analysis
N8315CBOEING Boeing 737-800
→
7/25/2026
57m
No alerts
Replay Analysis
N8897KBOEING Boeing 737 MAX 8
→
7/22/2026
4h 26m
No alerts
Replay Analysis
N8971LBOEING Boeing 737 MAX 8
→
7/21/2026
4h 42m
No alerts
Replay Analysis
N8871QBOEING Boeing 737 MAX 8
→
7/19/2026
1h 49m
No alerts
Replay Analysis
N8853QBOEING Boeing 737 MAX 8
→
7/18/2026
59m
No alerts
Replay Analysis
N8944QBOEING Boeing 737 MAX 8
→
7/15/2026
4h 27m
No alerts
Replay Analysis
N8629ABOEING Boeing 737-800
→
7/14/2026
4h 18m
No alerts
Replay Analysis
N8781QBOEING Boeing 737 MAX 8
→
7/12/2026
1h 31m
No alerts
Replay Analysis
N8781QBOEING Boeing 737 MAX 8
→
7/12/2026
12m
No alerts
Replay Analysis
N8914QBOEING Boeing 737 MAX 8
→
7/11/2026
13m
No alerts
Replay Analysis
N8952QBOEING Boeing 737 MAX 8
→
7/8/2026
4h 10m
No alerts
Replay Analysis
N8795LBOEING Boeing 737 MAX 8
→
7/7/2026
4h 18m
No alerts
Replay Analysis
N8863QBOEING Boeing 737 MAX 8
→
7/5/2026
1h 15m
No alerts
Replay Analysis
N8863QBOEING Boeing 737 MAX 8
→
7/5/2026
16m
No alerts
Replay Analysis
N8844QBOEING Boeing 737 MAX 8
→
7/1/2026
4h 7m
No alerts
Replay Analysis
N8997QBOEING Boeing 737 MAX 8
→
6/30/2026
4h 16m
No alerts
Replay Analysis
N8554XBOEING Boeing 737-800
→
6/28/2026
1h 33m
No alerts
Replay Analysis
N8888MBOEING Boeing 737 MAX 8
→
6/27/2026
55m
No alerts
Replay Analysis
N8858KBOEING Boeing 737 MAX 8
→
6/24/2026
4h 17m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window