N4HK
Cessna Citation CJ2
United States
SAT (San Antonio International Airport, San Antonio)

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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 stable vs prior period

Emissions Overview

0.0
Tons CO2 This Month
Below Average0.0× avg for Citation CJ2
0.0
Tons CO2 YTD
Below Average0.0× avg for Citation CJ2
31.2
CO2 Tons Since 2025
Below Average0.4× avg for Citation CJ2
Emissions Intensity0.00t CO₂/nmBelow Average0.7× avg for Citation CJ2
14.8 tons CO2 in selected period

Flight Patterns & Behaviour

Activity broadly consistent with prior period — averaging 1.3t CO₂/month

1.3t
CO₂/month
1.8t
Avg per flight
8
Distinct routes
Highly Concentrated3 routes account for 71% of total emissions
Highest emission route
San Antonio → Niagara Falls
6.1t CO₂ total · 0.0049t CO₂/nm
🇺🇸United States·16202 aircraft tracked·Ranked 1st by emissions among 109 countries·0.1× country averageBelow Average

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

What's ChangedCompared to prior equivalent period
Emissions
7%
15t → 14t CO₂
Intensity
35%
0.0041 → 0.0055 t CO₂/nm
New Routes
7
13t CO₂ combined
Dropped Routes
9
Prior period only
Avg per Flight
16%
1.5t → 1.8t
Flight Count
2
10 → 8 flights

Route and airport counts may include data processing artefacts.

Spikes

Significant deviations from this aircraft's baseline in the selected period.

CO₂ Above Baseline

23t

Signals Detected

5

Highest Severity

High

Emissions
High
New2 Oct 2025 · San Antonio → Niagara Falls
Highest single-flight emission event (San Antonio → Niagara Falls)
Single flight: 6.1t CO₂ — 42% of period emissions
Aircraft
High
New4 May – 24 May 2025
Elevated activity period · 4 flights in 20 days vs baseline of 1
Contributed approximately 5t CO₂ to period total — 34% of period emissions
Aircraft
Medium
New16 Nov – 29 Nov 2025
Elevated activity period · 2 flights in 13 days vs baseline of 0
Contributed approximately 3t CO₂ to period total — 20% of period emissions
Aircraft
Medium
Historical22 May – 2 Oct 2025
133-day inactive period
6.1t CO₂ in the 7 days following resumption
Aircraft
Medium
Historical2 Oct – 22 Nov 2025
51-day inactive period
2.9t CO₂ in the 7 days following resumption
Recent Flights
Dec 20, 20250.5t CO₂
KBUFBuffalo
KIAGNiagara Falls
15 miles22m
Nov 23, 20250.5t CO₂
KITHIthaca
KIAGNiagara Falls
133 miles28m
Nov 22, 20252.3t CO₂
KAVLAsheville
KHPNWhite Plains
616 miles1h 54m
Oct 2, 20256.1t CO₂
KSATSan Antonio
KIAGNiagara Falls
1,428 miles4h 39m
View Details
May 22, 20251.2t CO₂
KPHXPhoenix
KTEXTelluride
387 miles1h 3m
View Details
May 12, 20250.5t CO₂
KSATSan Antonio
KUVAUvalde
80 miles14m
View Details
May 12, 20251.3t CO₂
KSATSan Antonio
KLBBLubbock
347 miles1h 10m
View Details
May 4, 20251.8t CO₂
KPHXPhoenix
NaN miles1h 31m
View Details
Mar 26, 20252.9t CO₂
KTWFTwin Falls
KICTWichita
958 miles2h 21m
View Details
Mar 9, 20253.4t CO₂
KSATSan Antonio
KGJTGrand Junction
875 miles2h 40m
View Details
Mar 8, 20252.3t CO₂
KSATSan Antonio
KSAFSanta Fe
610 miles1h 53m
View Details
Mar 2, 20250.5t CO₂
KAUSAustin
KUVAUvalde
141 miles26m
View Details
Feb 27, 20250.7t CO₂
KAUSAustin
KSOASonora
179 miles41m
View Details
Feb 18, 20250.5t CO₂
KAUSAustin
KUVAUvalde
141 miles29m
View Details
Jan 16, 20250.5t CO₂
KSATSan Antonio
KHDOHondo
44 miles13m
View Details
Jan 11, 20250.8t CO₂
KSATSan Antonio
KSNKSnyder
263 miles48m
View Details
Jan 5, 20251.2t CO₂
KPHXPhoenix
KVHNVan Horn
452 miles1h 2m
View Details
Jan 4, 20252.6t CO₂
KDRTDel Rio
KPHXPhoenix
710 miles2h 4m
View Details
Top Airports by Emissions
San Antonio

San Antonio

KSAT

Total CO₂

7.9t

Total Visits

3

Avg CO₂/visit

2.6t

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Niagara Falls

Niagara Falls

KIAG

Total CO₂

7.2t

Total Visits

3

Avg CO₂/visit

2.4t

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Phoenix

Phoenix

KPHX

Total CO₂

3.0t

Total Visits

2

Avg CO₂/visit

1.5t

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Asheville

Asheville

KAVL

Total CO₂

2.3t

Total Visits

1

Avg CO₂/visit

2.3t

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
White Plains

White Plains

KHPN

Total CO₂

2.3t

Total Visits

1

Avg CO₂/visit

2.3t

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Lubbock

Lubbock

KLBB

Total CO₂

1.3t

Total Visits

1

Avg CO₂/visit

1.3t

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Page 1 of 2
Top Routes by Emissions
San Antonio Niagara Falls

KSAT to KIAG1,429 miles

Total Flights

1

Avg CO₂/Flight

6.1t

Total Emissions

6.1t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Asheville White Plains

KAVL to KHPN617 miles

Total Flights

1

Avg CO₂/Flight

2.3t

Total Emissions

2.3t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
San Antonio Lubbock

KSAT to KLBB347 miles

Total Flights

1

Avg CO₂/Flight

1.3t

Total Emissions

1.3t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Phoenix Telluride

KPHX to KTEX387 miles

Total Flights

1

Avg CO₂/Flight

1.2t

Total Emissions

1.2t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Buffalo Niagara Falls

KBUF to KIAG15 miles

Total Flights

1

Avg CO₂/Flight

0.5t

Total Emissions

0.5t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Ithaca Niagara Falls

KITH to KIAG133 miles

Total Flights

1

Avg CO₂/Flight

0.5t

Total Emissions

0.5t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Page 1 of 2