ASA639 is operated by ALASKA AIRLINES INC between Seattle Tacoma International Airport (KSEA) and Tampa International Airport (KTPA). The flight is most often flown by a BOEING Boeing 737 MAX 9. Typical block time is 5h 9m. SkyMeter has observed 88 legs of this flight number via ADS-B.

✈
FLIGHTS
88
last 90 days
⏱
AVG DURATION
5h 9m
tracked time
📅
SERVICE PERIOD
11/22/2025 → 07/04/2026
first → last seen
🗺
ROUTES / TYPES
3 / 4
city pairs · airframes
⚠
INCIDENT RATE
2.3%
2 flagged

Routes flown

By count · last 90 days

2
KSEA → KTPA
85
avg 5h 9m · Seattle Tacoma → Tampa
KSEA → KTPF
2
avg 5h 18m · Seattle Tacoma → Peter O Knight

Aircraft types

Equipment used on this number

4
B39M BOEING Boeing 737 MAX 9
35
B739 BOEING Boeing 737-900
31
B738 BOEING Boeing 737-800
18
B38M BOEING Boeing 737 MAX 8
4

Safety profile

Flagged flights · last 90 days

Go-arounds
1
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 ASA639

30
N453ASBOEING Boeing 737-900
→
07/04/2026
5h 9m
No alerts
Replay Analysis
N468ASBOEING Boeing 737-900
→
07/03/2026
5h 5m
No alerts
Replay Analysis
N413ASBOEING Boeing 737-900
→
07/02/2026
5h 19m
No alerts
Replay Analysis
N464ASBOEING Boeing 737-900
→
07/01/2026
5h 20m
No alerts
Replay Analysis
N464ASBOEING Boeing 737-900
→
07/01/2026
5h 20m
No alerts
Replay Analysis
N247AKBOEING Boeing 737-900
→
06/30/2026
5h 3m
No alerts
Replay Analysis
N974AKBOEING Boeing 737 MAX 9
→
06/29/2026
5h 11m
No alerts
Replay Analysis
N275AKBOEING Boeing 737-900
→
06/28/2026
5h 10m
No alerts
Replay Analysis
N265AKBOEING Boeing 737-900
→
06/27/2026
5h 19m
No alerts
Replay Analysis
N248AKBOEING Boeing 737-900
→
06/26/2026
5h 2m
No alerts
Replay Analysis
N471ASBOEING Boeing 737-900
→
06/25/2026
4h 57m
No alerts
Replay Analysis
N921AKBOEING Boeing 737 MAX 9
→
06/24/2026
4h 50m
No alerts
Replay Analysis
N297AKBOEING Boeing 737-900
→
06/23/2026
5h 6m
No alerts
Replay Analysis
N952AKBOEING Boeing 737 MAX 9
→
06/22/2026
5h 9m
No alerts
Replay Analysis
N709ALBOEING Boeing 737 MAX 9
→
06/21/2026
5h 5m
No alerts
Replay Analysis
N720ALBOEING Boeing 737 MAX 9
→
06/20/2026
5h 9m
No alerts
Replay Analysis
N248AKBOEING Boeing 737-900
→
06/19/2026
5h 10m
No alerts
Replay Analysis
N272AKBOEING Boeing 737-900
→
06/18/2026
5h 0m
No alerts
Replay Analysis
N705ALBOEING Boeing 737 MAX 9
→
06/17/2026
4h 42m
No alerts
Replay Analysis
N474ASBOEING Boeing 737-900
→
06/16/2026
4h 48m
No alerts
Replay Analysis
N267AKBOEING Boeing 737-900
→
06/15/2026
4h 58m
No alerts
Replay Analysis
N710ALBOEING Boeing 737 MAX 9
→
06/14/2026
5h 33m
No alerts
Replay Analysis
N253AKBOEING Boeing 737-900
→
06/13/2026
4h 56m
↻ Go-around
Replay Analysis
N713ALBOEING Boeing 737 MAX 9
→
06/12/2026
5h 10m
No alerts
Replay Analysis
N283AKBOEING Boeing 737-900
→
06/11/2026
4h 28m
No alerts
Replay Analysis
N720ALBOEING Boeing 737 MAX 9
→
06/10/2026
5h 6m
No alerts
Replay Analysis
N967AKBOEING Boeing 737 MAX 9
→
06/09/2026
5h 6m
No alerts
Replay Analysis
N969AKBOEING Boeing 737 MAX 9
→
06/08/2026
5h 10m
No alerts
Replay Analysis
N729ALBOEING Boeing 737 MAX 9
→
06/07/2026
5h 16m
No alerts
Replay Analysis
N461ASBOEING Boeing 737-900
→
06/06/2026
5h 19m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window