S421

S · WA15 → MWH

S421 is operated by between Coulee City Airport (WA15) and Grant County International Airport (KMWH). The flight is most often flown by a AIR TRACTOR Air Tractor AT-802. Typical block time is 1h 8m. SkyMeter has observed 16 legs of this flight number via ADS-B.

✈
FLIGHTS
16
last 90 days
⏱
AVG DURATION
1h 8m
tracked time
📅
SERVICE PERIOD
6/27/2025 → 8/12/2026
first → last seen
🗺
ROUTES / TYPES
12 / 1
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

3
WA15 → KMWH
1
avg 10m · Coulee City → Grant County
27W → KEAT
1
avg 11m · Lake Wenatchee State → Pangborn
KEAT → W20
1
avg 18m · Pangborn → Moses Lake

Aircraft types

Equipment used on this number

1
AT8T AIR TRACTOR Air Tractor AT-802
22

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 S421

30
N811APAIR TRACTOR Air Tractor AT-802
→
8/12/2026
30m
No alerts
Replay Analysis
N811APAIR TRACTOR Air Tractor AT-802
→
8/12/2026
24m
No alerts
Replay Analysis
N811APAIR TRACTOR Air Tractor AT-802
→
8/12/2026
39m
No alerts
Replay Analysis
N811APAIR TRACTOR Air Tractor AT-802
→
8/12/2026
1h 44m
No alerts
Replay Analysis
N811APAIR TRACTOR Air Tractor AT-802
→
8/12/2026
29m
△ Low approach-stability score
Replay Analysis
N811APAIR TRACTOR Air Tractor AT-802
→
8/11/2026
38m
No alerts
Replay Analysis
N811APAIR TRACTOR Air Tractor AT-802
→
8/11/2026
1h 8m
No alerts
Replay Analysis
N811APAIR TRACTOR Air Tractor AT-802
→
8/11/2026
3h 30m
△ Low approach-stability score
Replay Analysis
N811APAIR TRACTOR Air Tractor AT-802
→
8/11/2026
18m
No alerts
Replay Analysis
N811APAIR TRACTOR Air Tractor AT-802
→
8/11/2026
10m
No alerts
Replay Analysis
N811APAIR TRACTOR Air Tractor AT-802
→
8/10/2026
23m
No alerts
Replay Analysis
N811APAIR TRACTOR Air Tractor AT-802
→
8/8/2026
9m
No alerts
Replay Analysis
N811APAIR TRACTOR Air Tractor AT-802
→
7/28/2026
11m
No alerts
Replay Analysis
N811APAIR TRACTOR Air Tractor AT-802
→
7/27/2026
5h 47m
No alerts
Replay Analysis
N811APAIR TRACTOR Air Tractor AT-802
→
7/25/2026
1h 27m
No alerts
Replay Analysis
N811APAIR TRACTOR Air Tractor AT-802
→
7/20/2026
10m
No alerts
Replay Analysis
N811APAIR TRACTOR Air Tractor AT-802
→
7/20/2026
53m
No alerts
Replay Analysis
N811APAIR TRACTOR Air Tractor AT-802
→
6/28/2026
12m
No alerts
Replay Analysis
N811APAIR TRACTOR Air Tractor AT-802
→
6/19/2026
27m
No alerts
Replay Analysis
N811APAIR TRACTOR Air Tractor AT-802
→
6/18/2026
44m
No alerts
Replay Analysis
N811APAIR TRACTOR Air Tractor AT-802
→
6/16/2026
2h 26m
No alerts
Replay Analysis
N811APAIR TRACTOR Air Tractor AT-802
→
6/15/2026
2h 31m
No alerts
Replay Analysis
N811APAIR TRACTOR Air Tractor AT-802
→
4/9/2026
1h 43m
No alerts
Replay Analysis
N811APAIR TRACTOR Air Tractor AT-802
→
4/9/2026
2h 5m
△ Low approach-stability score
Replay Analysis
N811APAIR TRACTOR Air Tractor AT-802
→
3/28/2026
22m
No alerts
Replay Analysis
N811APAIR TRACTOR Air Tractor AT-802
→
3/6/2026
5m
No alerts
Replay Analysis
N811APAIR TRACTOR Air Tractor AT-802
→
3/6/2026
7m
No alerts
Replay Analysis
N811APAIR TRACTOR Air Tractor AT-802
→
3/5/2026
9m
No alerts
Replay Analysis
N811APAIR TRACTOR Air Tractor AT-802
→
3/5/2026
7m
No alerts
Replay Analysis
N811APAIR TRACTOR Air Tractor AT-802
→
3/3/2026
15m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window