Flight Status & Tracker

COOL21

COOL · SKF → DLF · Last tracked Oct 4, 2026

COOL21 is a flight number operated by between Lackland Air Force Base (KSKF) and Laughlin Air Force Base (KDLF). SkyMeter last tracked COOL21 on October 4, 2026. The flight is most often flown by a NORTHROP Northrop T-38 Talon. Typical block time is 0h 51m. SkyMeter has observed 18 legs of this flight number via ADS-B.

SkyMeter tracks historical flight activity from ADS-B data — this is not a live gate-to-gate status feed.

✈
FLIGHTS
18
last 90 days
⏱
AVG DURATION
51m
tracked time
📅
SERVICE PERIOD
6/7/2025 → 10/4/2026
first → last seen
🗺
ROUTES / TYPES
14 / 1
city pairs · airframes
⚠
INCIDENT RATE
22.2%
4 flagged

Routes flown

By count · last 90 days

8
2
avg 1h 10m · Lackland Air Force Base → Laughlin Air Force Base
2
avg 52m · Laughlin Air Force Base → Lackland Air Force Base
2
avg 59m · Fort Worth Alliance → Laughlin Air Force Base
1
avg 1h 6m · General Mitchell → Offutt Air Force Base
1
avg 1h 5m · Laughlin Air Force Base → Fort Worth Alliance
1
avg 1h 8m · Laughlin Air Force Base → Dyess Air Force Base
1
avg 1h 1m · Dyess Air Force Base → Laughlin Air Force Base
1
avg 1h 15m · Offutt Air Force Base → Fort Worth Alliance

Aircraft types

Equipment used on this number

1

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
4
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 COOL21

30
9/8/2026
49m
△ Low approach-stability score
9/8/2026
1h 14m
△ Low approach-stability score
9/8/2026
1h 5m
△ Low approach-stability score
8/13/2026
1h 5m
△ Low approach-stability score
1/19/2026
2h 24m
No alerts
1/19/2026
2h 24m
No alerts
12/1/2025
38m
△ Low approach-stability score
12/1/2025
38m
△ Low approach-stability score
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window