ASA4 is operated by ALASKA AIRLINES INC between Seattle Tacoma International Airport (KSEA) and Ronald Reagan Washington National Airport (KDCA). The flight is most often flown by a BOEING Boeing 737-800. Typical block time is 4h 40m. SkyMeter has observed 85 legs of this flight number via ADS-B.

✈
FLIGHTS
85
last 90 days
⏱
AVG DURATION
4h 40m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 07/19/2026
first → last seen
🗺
ROUTES / TYPES
5 / 2
city pairs · airframes
⚠
INCIDENT RATE
9.4%
8 flagged

Routes flown

By count · last 90 days

3
KSEA → KDCA
78
avg 4h 47m · Seattle Tacoma → Ronald Reagan Washington National
KRDU → KDCA
1
avg 1h 0m · Raleigh Durham → Ronald Reagan Washington National
KSEA → KRDU
1
avg 5h 39m · Seattle Tacoma → Raleigh Durham

Aircraft types

Equipment used on this number

2
B738 BOEING Boeing 737-800
65
B38M BOEING Boeing 737 MAX 8
20

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
8
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 ASA4

30
N533ASBOEING Boeing 737-800
→
07/19/2026
4h 38m
No alerts
Replay Analysis
N838AKBOEING Boeing 737 MAX 8
→
07/19/2026
59m
No alerts
Replay Analysis
N838AKBOEING Boeing 737 MAX 8
→
07/18/2026
5h 39m
No alerts
Replay Analysis
N536ASBOEING Boeing 737-800
→
07/17/2026
4h 47m
No alerts
Replay Analysis
N560ASBOEING Boeing 737-800
→
07/16/2026
4h 54m
No alerts
Replay Analysis
N523ASBOEING Boeing 737-800
→
07/15/2026
5h 3m
No alerts
Replay Analysis
N527ASBOEING Boeing 737-800
→
07/14/2026
5h 6m
No alerts
Replay Analysis
N585ASBOEING Boeing 737-800
→
07/13/2026
4h 47m
No alerts
Replay Analysis
N506ASBOEING Boeing 737-800
→
07/12/2026
4h 47m
No alerts
Replay Analysis
N563ASBOEING Boeing 737-800
→
07/11/2026
4h 41m
No alerts
Replay Analysis
N594ASBOEING Boeing 737-800
→
07/10/2026
5h 4m
No alerts
Replay Analysis
N814AKBOEING Boeing 737 MAX 8
→
07/09/2026
5h 9m
No alerts
Replay Analysis
N525ASBOEING Boeing 737-800
→
07/08/2026
4h 34m
No alerts
Replay Analysis
N516ASBOEING Boeing 737-800
→
07/07/2026
5h 6m
No alerts
Replay Analysis
N565ASBOEING Boeing 737-800
→
07/06/2026
4h 48m
No alerts
Replay Analysis
N812AKBOEING Boeing 737 MAX 8
→
07/05/2026
5h 1m
No alerts
Replay Analysis
N558ASBOEING Boeing 737-800
→
07/03/2026
5h 0m
No alerts
Replay Analysis
N814AKBOEING Boeing 737 MAX 8
→
07/02/2026
5h 9m
No alerts
Replay Analysis
N569ASBOEING Boeing 737-800
→
07/01/2026
4h 37m
No alerts
Replay Analysis
N589ASBOEING Boeing 737-800
→
06/30/2026
4h 49m
No alerts
Replay Analysis
N524ASBOEING Boeing 737-800
→
06/29/2026
5h 1m
No alerts
Replay Analysis
N814AKBOEING Boeing 737 MAX 8
→
06/28/2026
4h 46m
No alerts
Replay Analysis
N566ASBOEING Boeing 737-800
→
06/27/2026
4h 50m
No alerts
Replay Analysis
N532ASBOEING Boeing 737-800
→
06/26/2026
4h 33m
No alerts
Replay Analysis
N842AKBOEING Boeing 737 MAX 8
→
06/25/2026
4h 43m
No alerts
Replay Analysis
N569ASBOEING Boeing 737-800
→
06/24/2026
4h 28m
No alerts
Replay Analysis
N562ASBOEING Boeing 737-800
→
06/23/2026
5h 2m
No alerts
Replay Analysis
N531ASBOEING Boeing 737-800
→
06/22/2026
4h 35m
No alerts
Replay Analysis
N516ASBOEING Boeing 737-800
→
06/21/2026
4h 43m
No alerts
Replay Analysis
N814AKBOEING Boeing 737 MAX 8
→
06/20/2026
4h 39m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window