ASA637 is operated by ALASKA AIRLINES INC between Phoenix Sky Harbor International Airport (KPHX) and Seattle Tacoma International Airport (KSEA). The flight is most often flown by a BOEING Boeing 737-900. Typical block time is 2h 51m. SkyMeter has observed 88 legs of this flight number via ADS-B.

✈
FLIGHTS
88
last 90 days
⏱
AVG DURATION
2h 51m
tracked time
📅
SERVICE PERIOD
06/12/2025 → 07/19/2026
first → last seen
🗺
ROUTES / TYPES
8 / 3
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

6
KPHX → KSEA
77
avg 3h 1m · Phoenix Sky Harbor → Seattle Tacoma
AZ33 → KSEA
1
avg 3h 16m · Knoell-Main Office Heliport → Seattle Tacoma
KPSC → KSEA
1
avg 42m · Tri Cities → Seattle Tacoma
KPHX → KPSC
1
avg 3h 7m · Phoenix Sky Harbor → Tri Cities
KCHD → KSEA
1
avg 2h 41m · Chandler → Seattle Tacoma
KPHX → KRNT
1
avg 2h 57m · Phoenix Sky Harbor → Renton

Aircraft types

Equipment used on this number

3
B739 BOEING Boeing 737-900
55
B39M BOEING Boeing 737 MAX 9
23
B738 BOEING Boeing 737-800
10

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 ASA637

30
N472ASBOEING Boeing 737-900
→
07/19/2026
3h 7m
No alerts
Replay Analysis
N953AKBOEING Boeing 737 MAX 9
→
07/18/2026
2h 51m
No alerts
Replay Analysis
N494ASBOEING Boeing 737-900
→
07/17/2026
3h 8m
No alerts
Replay Analysis
N272AKBOEING Boeing 737-900
→
07/16/2026
42m
No alerts
Replay Analysis
N272AKBOEING Boeing 737-900
→
07/16/2026
3h 7m
No alerts
Replay Analysis
N433ASBOEING Boeing 737-900
→
07/15/2026
2h 36m
No alerts
Replay Analysis
N467ASBOEING Boeing 737-900
→
07/14/2026
2h 41m
No alerts
Replay Analysis
N408ASBOEING Boeing 737-900
→
07/13/2026
2h 47m
No alerts
Replay Analysis
N453ASBOEING Boeing 737-900
→
07/12/2026
2h 52m
No alerts
Replay Analysis
N913AKBOEING Boeing 737 MAX 9
→
07/11/2026
2h 56m
No alerts
Replay Analysis
N933AKBOEING Boeing 737 MAX 9
→
07/10/2026
3h 11m
No alerts
Replay Analysis
N277AKBOEING Boeing 737-900
→
07/09/2026
3h 8m
No alerts
Replay Analysis
N247AKBOEING Boeing 737-900
→
07/08/2026
2h 51m
No alerts
Replay Analysis
N464ASBOEING Boeing 737-900
→
07/07/2026
2h 56m
No alerts
Replay Analysis
N266AKBOEING Boeing 737-900
→
07/06/2026
2h 51m
No alerts
Replay Analysis
N487ASBOEING Boeing 737-900
→
07/05/2026
3h 5m
No alerts
Replay Analysis
N564ASBOEING Boeing 737-800
→
07/04/2026
3h 10m
No alerts
Replay Analysis
N237AKBOEING Boeing 737-900
→
07/03/2026
3h 12m
No alerts
Replay Analysis
N442ASBOEING Boeing 737-900
→
07/02/2026
3h 9m
No alerts
Replay Analysis
N248AKBOEING Boeing 737-900
→
07/01/2026
3h 22m
No alerts
Replay Analysis
N419ASBOEING Boeing 737-900
→
06/30/2026
3h 0m
No alerts
Replay Analysis
N971AKBOEING Boeing 737 MAX 9
→
06/29/2026
2h 51m
No alerts
Replay Analysis
N462ASBOEING Boeing 737-900
→
06/28/2026
3h 7m
No alerts
Replay Analysis
N297AKBOEING Boeing 737-900
→
06/27/2026
3h 11m
No alerts
Replay Analysis
N508ASBOEING Boeing 737-800
→
06/26/2026
2h 58m
No alerts
Replay Analysis
N287AKBOEING Boeing 737-900
→
06/25/2026
3h 11m
No alerts
Replay Analysis
N285AKBOEING Boeing 737-900
→
06/24/2026
2h 51m
No alerts
Replay Analysis
N579ASBOEING Boeing 737-800
→
06/23/2026
3h 1m
No alerts
Replay Analysis
N285AKBOEING Boeing 737-900
→
06/22/2026
3h 6m
No alerts
Replay Analysis
N589ASBOEING Boeing 737-800
→
06/21/2026
3h 18m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window