ASA539 is operated by ALASKA AIRLINES INC between General Edward Lawrence Logan International Airport (KBOS) and San Diego International Airport (KSAN). The flight is most often flown by a BOEING Boeing 737 MAX 9. Typical block time is 5h 50m. SkyMeter has observed 17 legs of this flight number via ADS-B.

✈
FLIGHTS
17
last 90 days
⏱
AVG DURATION
5h 50m
tracked time
📅
SERVICE PERIOD
05/13/2026 → 06/03/2026
first → last seen
🗺
ROUTES / TYPES
1 / 3
city pairs · airframes
⚠
INCIDENT RATE
5.9%
1 flagged

Routes flown

By count · last 90 days

1
KBOS → KSAN
17
avg 5h 50m · General Edward Lawrence Logan → San Diego

Aircraft types

Equipment used on this number

3
B39M BOEING Boeing 737 MAX 9
10
B739 BOEING Boeing 737-900
5
B738 BOEING Boeing 737-800
2

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 17 operations of ASA539

17
N478ASBOEING Boeing 737-900
→
06/03/2026
5h 30m
No alerts
Replay Analysis
N442ASBOEING Boeing 737-900
→
06/02/2026
5h 31m
No alerts
Replay Analysis
N705ALBOEING Boeing 737 MAX 9
→
06/01/2026
5h 47m
No alerts
Replay Analysis
N453ASBOEING Boeing 737-900
→
05/31/2026
5h 42m
No alerts
Replay Analysis
N979AKBOEING Boeing 737 MAX 9
→
05/29/2026
5h 41m
No alerts
Replay Analysis
N947AKBOEING Boeing 737 MAX 9
→
05/28/2026
5h 52m
△ Unstable
Replay Analysis
N969AKBOEING Boeing 737 MAX 9
→
05/26/2026
5h 43m
No alerts
Replay Analysis
N973AKBOEING Boeing 737 MAX 9
→
05/25/2026
5h 49m
No alerts
Replay Analysis
N979AKBOEING Boeing 737 MAX 9
→
05/24/2026
6h 9m
No alerts
Replay Analysis
N525ASBOEING Boeing 737-800
→
05/23/2026
5h 59m
No alerts
Replay Analysis
N729ALBOEING Boeing 737 MAX 9
→
05/21/2026
6h 3m
No alerts
Replay Analysis
N720ALBOEING Boeing 737 MAX 9
→
05/20/2026
6h 3m
No alerts
Replay Analysis
N431ASBOEING Boeing 737-900
→
05/18/2026
5h 59m
No alerts
Replay Analysis
N592ASBOEING Boeing 737-800
→
05/17/2026
5h 57m
No alerts
Replay Analysis
N953AKBOEING Boeing 737 MAX 9
→
05/15/2026
5h 42m
No alerts
Replay Analysis
N969AKBOEING Boeing 737 MAX 9
→
05/14/2026
5h 35m
No alerts
Replay Analysis
N472ASBOEING Boeing 737-900
→
05/13/2026
6h 2m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window