N448CJ
Cessna Citation CJ4
Charter
United States
HWD (Hayward Air Terminal Airport, Hayward)

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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 increasing vs prior period

Emissions Overview

0.0
Tons CO2 This Month
Below Average0.0× avg for Citation CJ4
4.5
Tons CO2 YTD
Below Average0.2× avg for Citation CJ4
96.1
CO2 Tons Since 2025
Typical0.8× avg for Citation CJ4
Emissions Intensity0.01t CO₂/nmTypical1.0× avg for Citation CJ4
59.2 tons CO2 in selected period

2026 pace: On track for approximately 18t CO₂ by year end · ↓ 80% vs full year 2025 (92t)

Flight Patterns & Behaviour

Emissions up 67% vs prior period, driven by Hayward → KDTO

57t
Period total CO₂
3.8t
Avg per flight
15
Flights
Moderately Concentrated3 routes account for 63% of total emissions
Highest emission route
Hayward → KDTO
18.7t CO₂ total · 0.0038t CO₂/nm
🇺🇸United States·16202 aircraft tracked·Ranked 1st by emissions among 109 countries·0.3× country averageBelow Average

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

What's ChangedCompared to prior equivalent period
Emissions
67%
34t → 57t CO₂
Intensity
5%
0.0044 → 0.0042 t CO₂/nm
New Routes
5
21t CO₂ combined
Dropped Routes
6
Prior period only
Avg per Flight
11%
3.4t → 3.8t
Flight Count
5
10 → 15 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

40t

Signals Detected

5

Highest Severity

Medium

Aircraft
Medium
New24 Apr – 16 May 2025
Elevated activity period · 3 flights in 22 days vs baseline of 1
Contributed approximately 13t CO₂ to period total — 23% of period emissions
Aircraft
Medium
New5 Jul – 26 Jul 2025
Elevated activity period · 2 flights in 21 days vs baseline of 1
Contributed approximately 9t CO₂ to period total — 15% of period emissions
Aircraft
Medium
New14 Aug – 12 Sept 2025
Elevated activity period · 3 flights in 29 days vs baseline of 2
Contributed approximately 5t CO₂ to period total — 9% of period emissions
Aircraft
Medium
Historical16 May – 11 Jul 2025
56-day inactive period
8.7t CO₂ in the 7 days following resumption
Aircraft
Medium
Historical12 Jul – 26 Jul 2025
15-day inactive period
5.0t CO₂ in the 7 days following resumption
Recent Flights
Jan 18, 20264.5t CO₂
KHWDHayward
KDTO
1,431 miles2h 55m
Dec 16, 20254.5t CO₂
KHWDHayward
KDTO
1,431 miles2h 56m
Nov 29, 20255.8t CO₂
KSWFNewburgh
KDTO
1,385 miles3h 41m
Nov 10, 20254.0t CO₂
KCRQCarlsbad
KDTO
1,159 miles2h 39m
View Details
Nov 7, 20251.6t CO₂
KHWDHayward
KCRQCarlsbad
415 miles1h 12m
View Details
Oct 31, 20254.7t CO₂
KJYOLeesburg
KDTO
1,165 miles3h 5m
View Details
Sep 12, 20250.8t CO₂
KHWDHayward
NaN miles44m
View Details
Aug 22, 20250.6t CO₂
KHWDHayward
NaN miles37m
View Details
Aug 20, 20253.5t CO₂
KPEFColorado Springs
KHWDHayward
945 miles2h 20m
View Details
Jul 26, 20255.0t CO₂
KHWDHayward
KDTO
1,431 miles3h 15m
View Details
Jul 12, 20254.4t CO₂
KLNKLincoln
KHPNWhite Plains
1,199 miles2h 51m
View Details
Jul 11, 20254.3t CO₂
KHWDHayward
KLNKLincoln
1,369 miles2h 48m
View Details
May 16, 20253.7t CO₂
KCRQCarlsbad
KDTO
1,159 miles2h 27m
View Details
May 4, 20254.7t CO₂
KHWDHayward
KDTO
1,431 miles3h 3m
View Details
Apr 24, 20254.6t CO₂
KJYOLeesburg
KDTO
1,165 miles3h 0m
View Details
Mar 27, 20254.0t CO₂
KLGBLong Beach
KDTO
1,205 miles2h 37m
View Details
Mar 26, 20251.2t CO₂
KHWDHayward
KLGBLong Beach
346 miles60m
View Details
Mar 23, 20253.3t CO₂
KAPADenver
KHWDHayward
940 miles2h 15m
View Details
Mar 1, 20256.7t CO₂
KHWDHayward
KDTO
1,431 miles4h 13m
View Details
Feb 23, 20250.5t CO₂
KCICChico
KHWDHayward
148 miles32m
View Details
Feb 22, 20251.6t CO₂
KBURBurbank
KCICChico
432 miles1h 11m
View Details
Feb 6, 20254.1t CO₂
KHWDHayward
KDTO
1,431 miles2h 42m
View Details
Feb 2, 20251.8t CO₂
KHMTHemet
KHWDHayward
394 miles1h 20m
View Details
Jan 31, 20255.3t CO₂
KJYOLeesburg
KDTO
1,165 miles3h 23m
View Details
Jan 3, 20255.4t CO₂
KSWFNewburgh
KDTO
1,385 miles3h 29m
View Details
Top Airports by Emissions
KDTO

KDTO

Total CO₂

41.5t

Total Visits

9

Avg CO₂/visit

4.6t

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

Hayward

KHWD

Total CO₂

29.4t

Total Visits

9

Avg CO₂/visit

3.3t

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

Leesburg

KJYO

Total CO₂

9.4t

Total Visits

2

Avg CO₂/visit

4.7t

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

Carlsbad

KCRQ

Total CO₂

9.3t

Total Visits

3

Avg CO₂/visit

3.1t

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

Lincoln

KLNK

Total CO₂

8.7t

Total Visits

2

Avg CO₂/visit

4.3t

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

Newburgh

KSWF

Total CO₂

5.8t

Total Visits

1

Avg CO₂/visit

5.8t

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

KHWD to KDTO1,432 miles

Total Flights

4

Avg CO₂/Flight

4.7t

Total Emissions

18.7t CO₂

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

KJYO to KDTO1,166 miles

Total Flights

2

Avg CO₂/Flight

4.7t

Total Emissions

9.4t CO₂

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

KCRQ to KDTO1,160 miles

Total Flights

2

Avg CO₂/Flight

3.9t

Total Emissions

7.7t CO₂

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

KSWF to KDTO1,386 miles

Total Flights

1

Avg CO₂/Flight

5.8t

Total Emissions

5.8t CO₂

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

KLNK to KHPN1,199 miles

Total Flights

1

Avg CO₂/Flight

4.4t

Total Emissions

4.4t CO₂

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

KHWD to KLNK1,370 miles

Total Flights

1

Avg CO₂/Flight

4.3t

Total Emissions

4.3t CO₂

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