ASA647 is operated by ALASKA AIRLINES INC between Seattle Tacoma International Airport (KSEA) and St Louis Lambert International Airport (KSTL). The flight is most often flown by a BOEING Boeing 737-900. Typical block time is 3h 40m. SkyMeter has observed 148 legs of this flight number via ADS-B.

FLIGHTS
148
last 90 days
AVG DURATION
3h 40m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 07/19/2026
first → last seen
🗺
ROUTES / TYPES
11 / 4
city pairs · airframes
INCIDENT RATE
0.7%
1 flagged

Routes flown

By count · last 90 days

6
64
avg 3h 36m · Seattle Tacoma → St Louis Lambert
30
avg 4h 8m · St Louis Lambert → Seattle Tacoma
13
avg 2h 41m · Denver → Seattle Tacoma
1
avg 4h 7m · St Louis Lambert → Renton
1
avg 7m · V.A. Medical Center Heliport → St Louis Lambert
1
avg 3h 34m · Seattle Tacoma → Auburn

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 ASA647

30
07/17/2026
3h 24m
No alerts
07/15/2026
3h 40m
No alerts
07/10/2026
4h 15m
No alerts
07/09/2026
3h 17m
No alerts
07/08/2026
4h 17m
No alerts
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window