BYF20 is operated by CHRISTIANSEN AVIATION LLC between San Carlos Airport (KSQL) and Hayward Executive Airport (KHWD). The flight is most often flown by a CESSNA Cessna Skyhawk 172/Cutlass. Typical block time is 0h 44m. SkyMeter has observed 224 legs of this flight number via ADS-B.

✈
FLIGHTS
224
last 90 days
⏱
AVG DURATION
44m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 8/15/2026
first → last seen
🗺
ROUTES / TYPES
37 / 1
city pairs · airframes
⚠
INCIDENT RATE
8.0%
18 flagged

Routes flown

By count · last 90 days

10
KSQL → KHWD
15
avg 44m · San Carlos → Hayward Executive
KLVK → KSQL
6
avg 27m · Livermore → San Carlos
KSQL → KLVK
4
avg 28m · San Carlos → Livermore
KSQL → KPAO
4
avg 28m · San Carlos → Palo Alto Airport of Santa Clara County
KPAO → KSQL
3
avg 33m · Palo Alto Airport of Santa Clara County → San Carlos
KSQL → KSFO
3
avg 52m · San Carlos → San Francisco
KHWD → KSQL
3
avg 35m · Hayward Executive → San Carlos
KSQL → KOAK
3
avg 44m · San Carlos → Metropolitan Oakland
KHAF → KSQL
3
avg 23m · Half Moon Bay → San Carlos
US-2771 → KSQL
2
avg 18m · Pillar Point Air Force Station Helipad → San Carlos

Aircraft types

Equipment used on this number

1
C172 CESSNA Cessna Skyhawk 172/Cutlass
224

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
18
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 BYF20

30
N137MECESSNA Cessna Skyhawk 172/Cutlass
→
8/15/2026
1h 15m
△ Low approach-stability score
Replay Analysis
N137MECESSNA Cessna Skyhawk 172/Cutlass
→
8/15/2026
40m
No alerts
Replay Analysis
N137MECESSNA Cessna Skyhawk 172/Cutlass
→
8/15/2026
27m
No alerts
Replay Analysis
N137MECESSNA Cessna Skyhawk 172/Cutlass
→
8/13/2026
27m
No alerts
Replay Analysis
N137MECESSNA Cessna Skyhawk 172/Cutlass
→
8/12/2026
30m
No alerts
Replay Analysis
N137MECESSNA Cessna Skyhawk 172/Cutlass
→
8/11/2026
28m
No alerts
Replay Analysis
N137MECESSNA Cessna Skyhawk 172/Cutlass
→
8/11/2026
59m
No alerts
Replay Analysis
N137MECESSNA Cessna Skyhawk 172/Cutlass
→
8/11/2026
53m
No alerts
Replay Analysis
N137MECESSNA Cessna Skyhawk 172/Cutlass
→
8/11/2026
45m
No alerts
Replay Analysis
N137MECESSNA Cessna Skyhawk 172/Cutlass
→
8/10/2026
16m
No alerts
Replay Analysis
N137MECESSNA Cessna Skyhawk 172/Cutlass
→
8/10/2026
48m
No alerts
Replay Analysis
N137MECESSNA Cessna Skyhawk 172/Cutlass
→
8/10/2026
35m
No alerts
Replay Analysis
N137MECESSNA Cessna Skyhawk 172/Cutlass
→
8/9/2026
20m
No alerts
Replay Analysis
N137MECESSNA Cessna Skyhawk 172/Cutlass
→
8/9/2026
44m
No alerts
Replay Analysis
N137MECESSNA Cessna Skyhawk 172/Cutlass
→
8/9/2026
49m
No alerts
Replay Analysis
N137MECESSNA Cessna Skyhawk 172/Cutlass
→
8/9/2026
21m
No alerts
Replay Analysis
N137MECESSNA Cessna Skyhawk 172/Cutlass
→
8/8/2026
1h 33m
△ Low approach-stability score
Replay Analysis
N137MECESSNA Cessna Skyhawk 172/Cutlass
→
8/8/2026
1h 27m
No alerts
Replay Analysis
N137MECESSNA Cessna Skyhawk 172/Cutlass
→
8/5/2026
1h 36m
No alerts
Replay Analysis
N137MECESSNA Cessna Skyhawk 172/Cutlass
→
8/4/2026
40m
No alerts
Replay Analysis
N137MECESSNA Cessna Skyhawk 172/Cutlass
→
8/4/2026
57m
No alerts
Replay Analysis
N137MECESSNA Cessna Skyhawk 172/Cutlass
→
8/4/2026
15m
No alerts
Replay Analysis
N137MECESSNA Cessna Skyhawk 172/Cutlass
→
8/4/2026
1h 5m
No alerts
Replay Analysis
N137MECESSNA Cessna Skyhawk 172/Cutlass
→
8/4/2026
1h 4m
No alerts
Replay Analysis
N137MECESSNA Cessna Skyhawk 172/Cutlass
→
8/3/2026
16m
No alerts
Replay Analysis
N137MECESSNA Cessna Skyhawk 172/Cutlass
→
8/3/2026
2m
No alerts
Replay Analysis
N137MECESSNA Cessna Skyhawk 172/Cutlass
→
8/3/2026
18m
No alerts
Replay Analysis
N137MECESSNA Cessna Skyhawk 172/Cutlass
→
8/2/2026
48m
No alerts
Replay Analysis
N137MECESSNA Cessna Skyhawk 172/Cutlass
→
8/2/2026
58m
No alerts
Replay Analysis
N137MECESSNA Cessna Skyhawk 172/Cutlass
→
8/1/2026
37m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window