N945HC
Bombardier Learjet 45
Charter
United States
SNA (John Wayne Airport-Orange County, Santa Ana)

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Viewing period:
Compared to: preceding 12 months · May 2024 – May 2025
May 2025 – Apr 2026·vs May 2024 – May 2025

Emissions Overview

23.6
Tons CO2 This Month
Above Average2.0× avg for Learjet 45
47.5
Tons CO2 YTD
Typical1.4× avg for Learjet 45
341.2
CO2 Tons Since 2025
Above Average1.6× avg for Learjet 45
Emissions Intensity0.00t CO₂/nmBelow Average0.7× avg for Learjet 45
272.0 tons CO2 in selected period

2026 pace: On track for approximately 143t CO₂ by year end · ↓ 51% vs full year 2025 (294t)

Flight Patterns & Behaviour

Activity broadly consistent with prior period — averaging 0.6t CO₂/month

0.6t
CO₂/month
2.4t
Avg per flight
3
Distinct routes
Highly Concentrated3 routes account for 100% of total emissions
Highest emission route
San Antonio → Santa Ana
4.4t CO₂ total · 0.0043t CO₂/nm
🇺🇸United States·16202 aircraft tracked·Ranked 1st by emissions among 109 countries·0.9× country averageTypical

Subject to FAA oversight — no mandatory carbon reporting for private aviation

What's ChangedCompared to prior equivalent period
Emissions
Prior data unavailable
Intensity
Prior data unavailable
New Routes
2
6t CO₂ combined
Dropped Routes
0
Avg per Flight
Prior data unavailable
Flight Count
Prior data unavailable

Route and airport counts may include data processing artefacts.

Activity Signals

Recent Flights
Mar 31, 20262.1t CO₂
KSNASanta Ana
KAPCNapa
399 miles1h 21m
Mar 24, 20264.4t CO₂
KSATSan Antonio
KSNASanta Ana
1,174 miles2h 34m
Mar 15, 20260.6t CO₂
KMFEMc Allen
NaN miles17m

Top Airports by Emissions

Top Routes by Emissions