ASA660 is operated by ALASKA AIRLINES INC between Missoula Unit Heliport (MT44) and Seattle Tacoma International Airport (KSEA). The flight is most often flown by a BOEING Boeing 737-800. Typical block time is 2h 35m. SkyMeter has observed 34 legs of this flight number via ADS-B.

✈
FLIGHTS
34
last 90 days
⏱
AVG DURATION
2h 35m
tracked time
📅
SERVICE PERIOD
04/23/2026 → 06/01/2026
first → last seen
🗺
ROUTES / TYPES
6 / 4
city pairs · airframes
⚠
INCIDENT RATE
2.9%
1 flagged

Routes flown

By count · last 90 days

3
MT44 → KSEA
4
avg 1h 11m · Missoula Unit Heliport → Seattle Tacoma
KSEA → KMSO
1
avg 1h 4m · Seattle Tacoma → Missoula
3WA6 → KSEA
1
avg 10m · Boeing Kent Heliport → Seattle Tacoma

Aircraft types

Equipment used on this number

4
B738 BOEING Boeing 737-800
24
B38M BOEING Boeing 737 MAX 8
15
B739 BOEING Boeing 737-900
15
B39M BOEING Boeing 737 MAX 9
13

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 ASA660

30
N839AK
→
06/01/2026
3h 26m
No alerts
Replay Analysis
N508ASBOEING Boeing 737-800
→
05/31/2026
1h 8m
No alerts
Replay Analysis
N508ASBOEING Boeing 737-800
→
05/31/2026
1h 8m
No alerts
Replay Analysis
N527ASBOEING Boeing 737-800
→
05/29/2026
1h 19m
No alerts
Replay Analysis
N527ASBOEING Boeing 737-800
→
05/29/2026
1h 24m
No alerts
Replay Analysis
N253AKBOEING Boeing 737-900
→
05/28/2026
1h 4m
No alerts
Replay Analysis
N253AKBOEING Boeing 737-900
→
05/28/2026
1h 24m
No alerts
Replay Analysis
N253AKBOEING Boeing 737-900
→
05/28/2026
3h 42m
No alerts
Replay Analysis
N506ASBOEING Boeing 737-800
→
05/25/2026
1h 7m
No alerts
Replay Analysis
N506ASBOEING Boeing 737-800
→
05/25/2026
1h 7m
No alerts
Replay Analysis
N937AKBOEING Boeing 737 MAX 9
→
05/24/2026
1h 2m
No alerts
Replay Analysis
N937AKBOEING Boeing 737 MAX 9
→
05/24/2026
1h 13m
No alerts
Replay Analysis
N937AKBOEING Boeing 737 MAX 9
→
05/24/2026
3h 50m
No alerts
Replay Analysis
N546ASBOEING Boeing 737-800
→
05/23/2026
10m
△ Unstable
Replay Analysis
N546ASBOEING Boeing 737-800
→
05/22/2026
46m
No alerts
Replay Analysis
N549ASBOEING Boeing 737-800
→
05/21/2026
1h 15m
No alerts
Replay Analysis
N549ASBOEING Boeing 737-800
→
05/21/2026
1h 14m
No alerts
Replay Analysis
N549ASBOEING Boeing 737-800
→
05/21/2026
4h 5m
No alerts
Replay Analysis
N823AKBOEING Boeing 737 MAX 8
→
05/18/2026
1h 7m
No alerts
Replay Analysis
N823AKBOEING Boeing 737 MAX 8
→
05/18/2026
1h 16m
No alerts
Replay Analysis
N823AKBOEING Boeing 737 MAX 8
→
05/18/2026
3h 46m
No alerts
Replay Analysis
N803AKBOEING Boeing 737 MAX 8
→
05/17/2026
1h 15m
No alerts
Replay Analysis
N803AKBOEING Boeing 737 MAX 8
→
05/17/2026
4h 2m
No alerts
Replay Analysis
N803AKBOEING Boeing 737 MAX 8
→
05/17/2026
1h 20m
No alerts
Replay Analysis
N594ASBOEING Boeing 737-800
→
05/15/2026
1h 15m
No alerts
Replay Analysis
N594ASBOEING Boeing 737-800
→
05/15/2026
1h 21m
No alerts
Replay Analysis
N594ASBOEING Boeing 737-800
→
05/15/2026
3h 47m
No alerts
Replay Analysis
N514ASBOEING Boeing 737-800
→
05/14/2026
1h 3m
No alerts
Replay Analysis
N514ASBOEING Boeing 737-800
→
05/14/2026
1h 1m
No alerts
Replay Analysis
N514ASBOEING Boeing 737-800
→
05/14/2026
3h 37m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window