N451HM
Bombardier Challenger 300
Charter
United States
MNZ (Manassas Regional Airport, Manassas)

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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

10.2
Tons CO2 This Month
Below Average0.2× avg for Challenger 300
36.5
Tons CO2 YTD
Below Average0.3× avg for Challenger 300
227.5
CO2 Tons Since 2025
Below Average0.3× avg for Challenger 300
Emissions Intensity0.01t CO₂/nmTypical0.8× avg for Challenger 300
138.7 tons CO2 in selected period

2026 pace: On track for approximately 110t CO₂ by year end · ↓ 43% vs full year 2025 (191t)

Flight Patterns & Behaviour

Activity broadly consistent with prior period — averaging 1.8t CO₂/month

1.8t
CO₂/month
6.8t
Avg per flight
3
Distinct routes
Highly Concentrated3 routes account for 100% of total emissions
Highest emission route
Manassas → Anegada
7.8t CO₂ total · 0.0056t CO₂/nm
🇺🇸United States·16202 aircraft tracked·Ranked 1st by emissions among 109 countries·0.6× country averageBelow Average

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
3
20t 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 25, 20265.9t CO₂
KHEFManassas
KHOUHouston
1,189 miles2h 29m
Mar 2, 20266.8t CO₂
KHEFManassas
KTPLTemple
1,239 miles2h 50m
Feb 15, 20267.8t CO₂
KHEFManassas
TUPAAnegada
1,591 miles3h 12m

Top Airports by Emissions

Top Routes by Emissions