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 35m. SkyMeter has observed 100 legs of this flight number via ADS-B.

✈
FLIGHTS
100
last 90 days
⏱
AVG DURATION
3h 35m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 07/19/2026
first → last seen
🗺
ROUTES / TYPES
11 / 4
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

9
KIAH → KSEA
54
avg 4h 18m · George Bush Intercontinental Houston → Seattle Tacoma
WA85 → KSEA
3
avg 9m · Weyerhaeuser Heliport → Seattle Tacoma
S60 → KSEA
2
avg 12m · Kenmore Air Harbor Inc Seaplane Base → Seattle Tacoma
WA11 → KSEA
2
avg 16m · Boeing Military Airplanes Heliport → Seattle Tacoma
7WA8 → KSEA
2
avg 22m · Good Samaritan Hospital Heliport → Seattle Tacoma
0WA6 → KSEA
1
avg 14m · Stevens Memorial Hospital Heliport → Seattle Tacoma
WT22 → KSEA
1
avg 15m · Graves Field Heliport → Seattle Tacoma
9WA0 → KSEA
1
avg 8m · Boeing Plant 2 Heliport → Seattle Tacoma
WN22 → KSEA
1
avg 16m · Lake Union Heliport → Seattle Tacoma

Aircraft types

Equipment used on this number

4
B739 BOEING Boeing 737-900
97
B39M BOEING Boeing 737 MAX 9
89
B738 BOEING Boeing 737-800
12
B38M BOEING Boeing 737 MAX 8
3

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
N442ASBOEING Boeing 737-900
→
07/19/2026
3h 56m
No alerts
Replay Analysis
N290AKBOEING Boeing 737-900
→
07/18/2026
3h 58m
No alerts
Replay Analysis
N967AKBOEING Boeing 737 MAX 9
→
07/17/2026
4h 2m
No alerts
Replay Analysis
N402ASBOEING Boeing 737-900
→
07/16/2026
4h 9m
No alerts
Replay Analysis
N263AKBOEING Boeing 737-900
→
07/16/2026
24m
No alerts
Replay Analysis
N263AKBOEING Boeing 737-900
→
07/15/2026
4h 15m
No alerts
Replay Analysis
N263AKBOEING Boeing 737-900
→
07/15/2026
3h 50m
No alerts
Replay Analysis
N971AKBOEING Boeing 737 MAX 9
→
07/15/2026
11m
No alerts
Replay Analysis
N971AKBOEING Boeing 737 MAX 9
→
07/14/2026
3h 55m
No alerts
Replay Analysis
N985AKBOEING Boeing 737 MAX 9
→
07/14/2026
28m
No alerts
Replay Analysis
N985AKBOEING Boeing 737 MAX 9
→
07/13/2026
4h 15m
No alerts
Replay Analysis
N985AKBOEING Boeing 737 MAX 9
→
07/13/2026
3h 47m
No alerts
Replay Analysis
N563ASBOEING Boeing 737-800
→
07/13/2026
13m
No alerts
Replay Analysis
N563ASBOEING Boeing 737-800
→
07/12/2026
4h 9m
No alerts
Replay Analysis
N563ASBOEING Boeing 737-800
→
07/12/2026
3h 55m
No alerts
Replay Analysis
N712ALBOEING Boeing 737 MAX 9
→
07/12/2026
15m
No alerts
Replay Analysis
N712ALBOEING Boeing 737 MAX 9
→
07/11/2026
3h 52m
No alerts
Replay Analysis
N977AKBOEING Boeing 737 MAX 9
→
07/11/2026
8m
No alerts
Replay Analysis
N977AKBOEING Boeing 737 MAX 9
→
07/10/2026
4h 5m
No alerts
Replay Analysis
N282AKBOEING Boeing 737-900
→
07/09/2026
4h 5m
No alerts
Replay Analysis
N968AKBOEING Boeing 737 MAX 9
→
07/09/2026
14m
No alerts
Replay Analysis
N968AKBOEING Boeing 737 MAX 9
→
07/08/2026
4h 3m
No alerts
Replay Analysis
N283AKBOEING Boeing 737-900
→
07/08/2026
10m
No alerts
Replay Analysis
N283AKBOEING Boeing 737-900
→
07/07/2026
4h 6m
No alerts
Replay Analysis
N288AKBOEING Boeing 737-900
→
07/07/2026
4h 23m
No alerts
Replay Analysis
N935AKBOEING Boeing 737 MAX 9
→
07/06/2026
13m
No alerts
Replay Analysis
N935AKBOEING Boeing 737 MAX 9
→
07/05/2026
4h 0m
No alerts
Replay Analysis
N435ASBOEING Boeing 737-900
→
07/04/2026
1h 25m
No alerts
Replay Analysis
N435ASBOEING Boeing 737-900
→
07/03/2026
4h 15m
No alerts
Replay Analysis
N435ASBOEING Boeing 737-900
→
07/03/2026
2h 49m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window