N444BC
Cessna Citation X
United States
SAT (San Antonio International Airport, San Antonio)

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

Emissions Overview

0.0
Tons CO2 This Month
Below Average0.0× avg for Citation X
0.0
Tons CO2 YTD
Below Average0.0× avg for Citation X
57.4
CO2 Tons Since 2025
Below Average0.1× avg for Citation X
Emissions Intensity0.01t CO₂/nmBelow Average0.7× avg for Citation X
57.4 tons CO2 in selected period

Flight Patterns & Behaviour

Activity broadly consistent with prior period — averaging 4.5t CO₂/month

4.5t
CO₂/month
7.7t
Avg per flight
7
Distinct routes
Highly Concentrated3 routes account for 79% of total emissions
Highest emission route
San Antonio → Austin
17.2t CO₂ total · 0.2988t CO₂/nm
🇺🇸United States·16202 aircraft tracked·Ranked 1st by emissions among 109 countries·0.2× 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
7
54t 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.

Spikes

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

CO₂ Above Baseline

88t

Signals Detected

4

Highest Severity

High

Emissions
Medium
New10 Jun 2025 · San Antonio → Austin
Highest single-flight emission event (San Antonio → Austin)
Single flight: 17.2t CO₂ — 32% of period emissions
Aircraft
High
New25 May – 14 Jun 2025
Elevated activity period · 4 flights in 20 days vs baseline of 2
Contributed approximately 35t CO₂ to period total — 65% of period emissions
Aircraft
Medium
Historical8 Apr – 20 May 2025
41-day inactive period
0.8t CO₂ in the 7 days following resumption
Avg Emissions
Medium
New10 Jun 2025 · San Antonio → Austin
2 flights recorded with anomalous emissions intensity
34.1t CO₂ total — 63% of period emissions
Recent Flights
Jun 14, 202517.0t CO₂
KAUSAustin
KRFGRefugio
133 miles5h 31m
Jun 14, 20250.8t CO₂
KRBORobstown
KAUSAustin
167 miles32m
Jun 10, 202517.2t CO₂
KSATSan Antonio
KAUSAustin
66 miles5h 35m
May 31, 20258.9t CO₂
KGEGSpokane
KRBORobstown
1,736 miles3h 3m
View Details
May 31, 20258.6t CO₂
PANCAnchorage
KGEGSpokane
1,579 miles2h 57m
View Details
May 20, 20250.8t CO₂
KSATSan Antonio
KRBORobstown
130 miles17m
View Details
Apr 8, 20250.9t CO₂
KUVAUvalde
KHOUHouston
270 miles37m
View Details
Top Airports by Emissions
Austin

Austin

KAUS

Total CO₂

35.0t

Total Visits

3

Avg CO₂/visit

11.7t

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

San Antonio

KSAT

Total CO₂

18.0t

Total Visits

2

Avg CO₂/visit

9.0t

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

Spokane

KGEG

Total CO₂

17.5t

Total Visits

2

Avg CO₂/visit

8.7t

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

Refugio

KRFG

Total CO₂

17.0t

Total Visits

1

Avg CO₂/visit

17.0t

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

Robstown

KRBO

Total CO₂

10.5t

Total Visits

3

Avg CO₂/visit

3.5t

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

Anchorage

PANC

Total CO₂

8.6t

Total Visits

1

Avg CO₂/visit

8.6t

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

KSAT to KAUS66 miles

Total Flights

1

Avg CO₂/Flight

17.2t

Total Emissions

17.2t CO₂

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

KAUS to KRFG133 miles

Total Flights

1

Avg CO₂/Flight

17.0t

Total Emissions

17t CO₂

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

KGEG to KRBO1,737 miles

Total Flights

1

Avg CO₂/Flight

8.9t

Total Emissions

8.9t CO₂

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

PANC to KGEG1,580 miles

Total Flights

1

Avg CO₂/Flight

8.6t

Total Emissions

8.6t CO₂

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

KUVA to KHOU270 miles

Total Flights

1

Avg CO₂/Flight

0.9t

Total Emissions

0.9t CO₂

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

KRBO to KAUS167 miles

Total Flights

1

Avg CO₂/Flight

0.8t

Total Emissions

0.8t CO₂

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