Flight Status & Tracker

ASA42

ALASKA AIRLINES INC · SFO → JFK · Last tracked Oct 21, 2026

ASA42 is a flight number operated by ALASKA AIRLINES INC between San Francisco International Airport (KSFO) and John F Kennedy International Airport (KJFK). SkyMeter last tracked ASA42 on October 21, 2026. The flight is most often flown by a BOEING Boeing 737 MAX 9. Typical block time is 4h 53m. SkyMeter has observed 83 legs of this flight number via ADS-B.

SkyMeter tracks historical flight activity from ADS-B data — this is not a live gate-to-gate status feed.

✈
FLIGHTS
83
last 90 days
⏱
AVG DURATION
4h 53m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 10/21/2026
first → last seen
🗺
ROUTES / TYPES
4 / 4
city pairs · airframes
⚠
INCIDENT RATE
2.4%
2 flagged

Routes flown

By count · last 90 days

2
KSFO → KJFK
57
avg 5h 40m · San Francisco → John F Kennedy
KHAF → KJFK
2
avg 5h 54m · Half Moon Bay → John F Kennedy

Aircraft types

Equipment used on this number

4
B39M BOEING Boeing 737 MAX 9
93
B739 BOEING Boeing 737-900
91
B738 BOEING Boeing 737-800
14
B38M BOEING Boeing 737 MAX 8
2

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
2
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 ASA42

30
N943AKBOEING Boeing 737 MAX 9
→
10/21/2026
2h 22m
No alerts
Replay Analysis
N928AKBOEING Boeing 737 MAX 9
→
10/20/2026
2h 50m
No alerts
Replay Analysis
N815AKBOEING Boeing 737 MAX 8
→
10/18/2026
3h 22m
No alerts
Replay Analysis
N724ALBOEING Boeing 737 MAX 9
→
10/18/2026
3h 2m
No alerts
Replay Analysis
N938AKBOEING Boeing 737 MAX 9
→
10/17/2026
3h 43m
No alerts
Replay Analysis
N938AKBOEING Boeing 737 MAX 9
→
10/17/2026
1h 59m
No alerts
Replay Analysis
N938AKBOEING Boeing 737 MAX 9
→
10/17/2026
5h 43m
No alerts
Replay Analysis
N956AKBOEING Boeing 737 MAX 9
→
10/16/2026
2h 21m
No alerts
Replay Analysis
N956AKBOEING Boeing 737 MAX 9
→
10/15/2026
3h 9m
No alerts
Replay Analysis
N956AKBOEING Boeing 737 MAX 9
→
10/15/2026
5h 31m
No alerts
Replay Analysis
N924AKBOEING Boeing 737 MAX 9
→
10/15/2026
1h 44m
No alerts
Replay Analysis
N491ASBOEING Boeing 737-900
→
10/13/2026
2h 30m
No alerts
Replay Analysis
N468ASBOEING Boeing 737-900
→
10/11/2026
1h 59m
No alerts
Replay Analysis
N538ASBOEING Boeing 737-800
→
10/10/2026
5h 23m
No alerts
Replay Analysis
N551ASBOEING Boeing 737-800
→
10/9/2026
2h 28m
No alerts
Replay Analysis
N551ASBOEING Boeing 737-800
→
10/8/2026
5h 18m
No alerts
Replay Analysis
N551ASBOEING Boeing 737-800
→
10/8/2026
2h 49m
No alerts
Replay Analysis
N413ASBOEING Boeing 737-900
→
10/8/2026
2h 9m
No alerts
Replay Analysis
N413ASBOEING Boeing 737-900
→
10/7/2026
5h 27m
No alerts
Replay Analysis
N413ASBOEING Boeing 737-900
→
10/7/2026
3h 17m
No alerts
Replay Analysis
N474ASBOEING Boeing 737-900
→
10/7/2026
2h 9m
No alerts
Replay Analysis
N474ASBOEING Boeing 737-900
→
10/6/2026
3h 18m
No alerts
Replay Analysis
N474ASBOEING Boeing 737-900
→
10/6/2026
5h 27m
No alerts
Replay Analysis
N955AKBOEING Boeing 737 MAX 9
→
10/5/2026
2h 32m
No alerts
Replay Analysis
N589ASBOEING Boeing 737-800
→
10/5/2026
2h 0m
No alerts
Replay Analysis
N589ASBOEING Boeing 737-800
→
10/4/2026
5h 23m
No alerts
Replay Analysis
N589ASBOEING Boeing 737-800
→
10/4/2026
3h 23m
No alerts
Replay Analysis
N953AKBOEING Boeing 737 MAX 9
→
10/4/2026
1h 53m
△ Low approach-stability score
Replay Analysis
N953AKBOEING Boeing 737 MAX 9
→
10/3/2026
5h 15m
△ Low approach-stability score
Replay Analysis
N953AKBOEING Boeing 737 MAX 9
→
10/3/2026
3h 21m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window