ASA439 is operated by ALASKA AIRLINES INC between George Bush Intercontinental Houston Airport (KIAH) and Seattle Tacoma International Airport (KSEA). The flight is most often flown by a BOEING Boeing 737-900. Typical block time is 3h 30m. SkyMeter has observed 55 legs of this flight number via ADS-B.

FLIGHTS
55
last 90 days
AVG DURATION
3h 30m
tracked time
📅
SERVICE PERIOD
04/06/2026 → 06/03/2026
first → last seen
🗺
ROUTES / TYPES
8 / 4
city pairs · airframes
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

5
27
avg 4h 21m · George Bush Intercontinental Houston → Seattle Tacoma
3
avg 4h 16m · Gateway Helistop → Seattle Tacoma
S60 KSEA
1
avg 11m · Kenmore Air Harbor Inc Seaplane Base → Seattle Tacoma
1
avg 4h 13m · Papa Heliport → Seattle Tacoma
1
avg 31m · Good Samaritan Hospital Heliport → Seattle Tacoma

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
0
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 ASA439

30
06/01/2026
3h 49m
No alerts
05/31/2026
3h 27m
No alerts
05/28/2026
3h 37m
No alerts
05/23/2026
3h 55m
No alerts
05/21/2026
3h 59m
No alerts
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window