N636DS
Cessna Citation CJ4
United States
SJC (Norman Y. Mineta San Jose International Airport, San Jose)

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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

44.3
Tons CO2 This Month
Above Average4.9× avg for Citation CJ4
76.7
Tons CO2 YTD
Above Average3.0× avg for Citation CJ4
295.3
CO2 Tons Since 2025
Above Average2.3× avg for Citation CJ4
Emissions Intensity0.01t CO₂/nmTypical1.0× avg for Citation CJ4
226.1 tons CO2 in selected period

2026 pace: On track for approximately 307t CO₂ by year end · ↑ 40% vs full year 2025 (219t)

Flight Patterns & Behaviour

Emissions up 245% vs prior period, driven by Seattle → San Jose

206t
Period total CO₂
2.7t
Avg per flight
75
Flights
Moderately Concentrated3 routes account for 52% of total emissions
Highest emission route
Seattle → San Jose
53.3t CO₂ total · 0.0042t CO₂/nm

Seasonal pattern: Historically peaks in July · Current month is 56% above March 2025

🇺🇸United States·16202 aircraft tracked·Ranked 1st by emissions among 109 countries·0.8× country averageTypical

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

What's ChangedCompared to prior equivalent period
Emissions
245%
60t → 206t CO₂
Intensity
3%
0.0043 → 0.0041 t CO₂/nm
New Routes
27
102t CO₂ combined
Dropped Routes
6
Prior period only
Avg per Flight
20%
2.3t → 2.7t
Flight Count
49
26 → 75 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

85t

Signals Detected

5

Highest Severity

Medium

Aircraft
Medium
New3 Apr – 25 Apr 2025
Elevated activity period · 6 flights in 22 days vs baseline of 5
Contributed approximately 13t CO₂ to period total — 6% of period emissions
Aircraft
Medium
New26 Jun – 18 Aug 2025
Elevated activity period · 19 flights in 53 days vs baseline of 11
Contributed approximately 49t CO₂ to period total — 24% of period emissions
Aircraft
Medium
New16 Sept – 22 Sept 2025
Elevated activity period · 2 flights in 6 days vs baseline of 1
Contributed approximately 5t CO₂ to period total — 3% of period emissions
Aircraft
Medium
Historical6 Apr – 23 Apr 2025
17-day inactive period
9.0t CO₂ in the 7 days following resumption
Aircraft
Medium
Historical12 May – 30 Jun 2025
49-day inactive period
8.2t CO₂ in the 7 days following resumption
Recent Flights
Mar 26, 20265.1t CO₂
KSATSan Antonio
KSJCSan Jose
1,450 miles3h 16m
Mar 21, 20264.8t CO₂
KICTWichita
KSJCSan Jose
1,337 miles3h 6m
Mar 20, 20263.2t CO₂
KBCBBlacksburg
KICTWichita
933 miles2h 10m
Mar 19, 20262.8t CO₂
KAAOWichita
KBCBBlacksburg
921 miles1h 54m
View Details
Mar 19, 20264.3t CO₂
KSJCSan Jose
KICTWichita
1,337 miles2h 48m
View Details
Mar 19, 20261.0t CO₂
KHHRHawthorne
KSJCSan Jose
312 miles52m
View Details
Mar 17, 20261.1t CO₂
KSJCSan Jose
KHHRHawthorne
312 miles55m
View Details
Mar 12, 20262.2t CO₂
KHIOPortland
KSJCSan Jose
567 miles1h 33m
View Details
Mar 12, 20262.1t CO₂
KSJCSan Jose
KHIOPortland
567 miles1h 30m
View Details
Mar 6, 20262.2t CO₂
KBFISeattle
KSJCSan Jose
703 miles1h 33m
View Details
Mar 4, 20262.5t CO₂
KSJCSan Jose
KBFISeattle
703 miles1h 44m
View Details
Mar 3, 20262.7t CO₂
KBFISeattle
KSJCSan Jose
703 miles1h 51m
View Details
Mar 2, 20262.7t CO₂
KSJCSan Jose
KBFISeattle
703 miles1h 52m
View Details
Mar 2, 20262.3t CO₂
KBFISeattle
KSJCSan Jose
703 miles1h 39m
View Details
Feb 27, 20260.5t CO₂
CYVRVancouver
KBFISeattle
122 miles27m
View Details
Feb 27, 20260.5t CO₂
KBFISeattle
CYVRVancouver
122 miles34m
View Details
Feb 24, 20262.4t CO₂
KSJCSan Jose
KBFISeattle
703 miles1h 41m
View Details
Feb 24, 20262.7t CO₂
KBFISeattle
KSJCSan Jose
703 miles1h 53m
View Details
Feb 7, 20267.3t CO₂
KAUSAustin
KBFISeattle
1,771 miles4h 37m
View Details
Feb 4, 20264.9t CO₂
KSJCSan Jose
KAUSAustin
1,473 miles3h 10m
View Details
Feb 2, 20262.4t CO₂
KBFISeattle
KSJCSan Jose
703 miles1h 40m
View Details
Jan 30, 20262.5t CO₂
KSJCSan Jose
KBFISeattle
703 miles1h 45m
View Details
Jan 28, 20262.6t CO₂
KBFISeattle
KSJCSan Jose
703 miles1h 48m
View Details
Jan 26, 20262.8t CO₂
KSJCSan Jose
KBFISeattle
703 miles1h 54m
View Details
Jan 26, 20262.4t CO₂
KBFISeattle
KSJCSan Jose
703 miles1h 42m
View Details
Jan 24, 20261.9t CO₂
KCICChico
KBFISeattle
535 miles1h 23m
View Details
Jan 14, 20262.5t CO₂
KBFISeattle
KSJCSan Jose
703 miles1h 46m
View Details
Dec 18, 20251.7t CO₂
KSJCSan Jose
KBOIBoise
522 miles1h 16m
View Details
Dec 15, 20253.0t CO₂
KBFISeattle
KSJCSan Jose
703 miles2h 1m
View Details
Dec 13, 20252.6t CO₂
KSJCSan Jose
KBFISeattle
703 miles1h 50m
View Details
Dec 11, 20255.3t CO₂
KAUSAustin
KSJCSan Jose
1,473 miles3h 25m
View Details
Dec 10, 20255.2t CO₂
KSJCSan Jose
KAUSAustin
1,473 miles3h 21m
View Details
Nov 21, 20255.8t CO₂
KAUSAustin
KSJCSan Jose
1,473 miles3h 43m
View Details
Nov 20, 20255.5t CO₂
KPBIWest Palm Beach
KAUSAustin
1,093 miles3h 30m
View Details
Nov 8, 20256.1t CO₂
KBFISeattle
KSDFLouisville
1,940 miles3h 52m
View Details
Nov 5, 20252.0t CO₂
KRNOReno
KBFISeattle
569 miles1h 27m
View Details
Nov 5, 20250.5t CO₂
KSJCSan Jose
KRNOReno
188 miles35m
View Details
Oct 25, 20252.5t CO₂
KBFISeattle
KSJCSan Jose
703 miles1h 44m
View Details
Oct 14, 20252.7t CO₂
KSJCSan Jose
KBFISeattle
703 miles1h 51m
View Details
Oct 14, 20252.4t CO₂
KBFISeattle
KSJCSan Jose
703 miles1h 40m
View Details
Sep 23, 20252.6t CO₂
KSJCSan Jose
KBFISeattle
703 miles1h 49m
View Details
Sep 22, 20252.6t CO₂
KBFISeattle
KSJCSan Jose
703 miles1h 47m
View Details
Sep 22, 20252.8t CO₂
KSJCSan Jose
KBFISeattle
703 miles1h 56m
View Details
Sep 19, 20252.6t CO₂
KBFISeattle
KSJCSan Jose
703 miles1h 50m
View Details
Sep 12, 20252.8t CO₂
KSJCSan Jose
KBFISeattle
703 miles1h 56m
View Details
Sep 2, 20252.9t CO₂
KBFISeattle
KSJCSan Jose
703 miles1h 57m
View Details
Aug 18, 20252.4t CO₂
KSJCSan Jose
KBFISeattle
703 miles1h 41m
View Details
Aug 18, 20252.6t CO₂
KBFISeattle
KSJCSan Jose
703 miles1h 48m
View Details
Aug 17, 20252.5t CO₂
KSJCSan Jose
KBFISeattle
703 miles1h 44m
View Details
Aug 7, 20252.3t CO₂
KBFISeattle
KSJCSan Jose
703 miles1h 39m
View Details
Aug 7, 20251.0t CO₂
KBFISeattle
NaN miles53m
View Details
Aug 7, 20251.3t CO₂
KBFISeattle
KBTMButte
476 miles1h 0m
View Details
Aug 5, 20252.6t CO₂
KSJCSan Jose
KBFISeattle
703 miles1h 48m
View Details
Aug 1, 20252.7t CO₂
KBFISeattle
KSJCSan Jose
703 miles1h 52m
View Details
Aug 1, 20252.3t CO₂
KSJCSan Jose
KBFISeattle
703 miles1h 37m
View Details
Jul 30, 20252.7t CO₂
KBFISeattle
KSJCSan Jose
703 miles1h 51m
View Details
Jul 28, 20255.3t CO₂
KFCMMinneapolis
KBFISeattle
1,384 miles3h 23m
View Details
Jul 25, 20252.7t CO₂
KATWAppleton
KPVDProvidence
879 miles1h 52m
View Details
Jul 24, 20255.1t CO₂
KBFISeattle
KATWAppleton
1,626 miles3h 19m
View Details
Jul 22, 20252.7t CO₂
KSJCSan Jose
KBFISeattle
703 miles1h 50m
View Details
Jul 18, 20252.0t CO₂
KHIOPortland
KSJCSan Jose
567 miles1h 28m
View Details
Jul 17, 20251.9t CO₂
KSJCSan Jose
KHIOPortland
567 miles1h 22m
View Details
Jul 15, 20251.6t CO₂
KSJCSan Jose
KBOIBoise
522 miles1h 14m
View Details
Jul 2, 20253.3t CO₂
KGHWGlenwood
KLCILaconia / Gilford
1,179 miles2h 13m
View Details
Jul 2, 20254.1t CO₂
KSJCSan Jose
KABRAberdeen
1,333 miles2h 41m
View Details
Jun 30, 20250.8t CO₂
KSMFSacramento
KSJCSan Jose
94 miles44m
View Details
May 12, 20250.5t CO₂
KSJCSan Jose
KSMFSacramento
94 miles30m
View Details
May 2, 20252.5t CO₂
KBFISeattle
KSJCSan Jose
703 miles1h 45m
View Details
Apr 25, 20252.4t CO₂
KSJCSan Jose
KBFISeattle
703 miles1h 40m
View Details
Apr 25, 20252.2t CO₂
KHIOPortland
KSJCSan Jose
567 miles1h 34m
View Details
Apr 24, 20251.9t CO₂
KSJCSan Jose
KHIOPortland
567 miles1h 22m
View Details
Apr 23, 20252.5t CO₂
KBFISeattle
KSJCSan Jose
703 miles1h 46m
View Details
Apr 6, 20252.5t CO₂
KSJCSan Jose
KBFISeattle
703 miles1h 46m
View Details
Apr 3, 20251.8t CO₂
KSJCSan Jose
KBOIBoise
522 miles1h 19m
View Details
Apr 3, 20252.3t CO₂
KBFISeattle
KSJCSan Jose
703 miles1h 38m
View Details
Mar 25, 20252.4t CO₂
KSJCSan Jose
KBFISeattle
703 miles1h 42m
View Details
Mar 24, 20252.7t CO₂
KBFISeattle
KSJCSan Jose
703 miles1h 50m
View Details
Mar 21, 20252.8t CO₂
KSJCSan Jose
KBFISeattle
703 miles1h 56m
View Details
Mar 18, 20252.4t CO₂
KBFISeattle
KSJCSan Jose
703 miles1h 41m
View Details
Mar 12, 20252.6t CO₂
KSJCSan Jose
KBFISeattle
703 miles1h 48m
View Details
Mar 11, 20252.6t CO₂
KBFISeattle
KSJCSan Jose
703 miles1h 47m
View Details
Mar 7, 20252.9t CO₂
KSJCSan Jose
KBFISeattle
703 miles2h 0m
View Details
Mar 4, 20251.6t CO₂
KMYFSan Diego
KSJCSan Jose
414 miles1h 11m
View Details
Mar 3, 20251.4t CO₂
KSJCSan Jose
KMYFSan Diego
414 miles1h 7m
View Details
Feb 13, 20252.6t CO₂
KBFISeattle
KSJCSan Jose
703 miles1h 49m
View Details
Feb 12, 20252.5t CO₂
KSJCSan Jose
KBFISeattle
703 miles1h 47m
View Details
Feb 11, 20250.5t CO₂
KSQLSan Carlos
KSJCSan Jose
20 miles9m
View Details
Feb 11, 20251.5t CO₂
KHIOPortland
KSQLSan Carlos
556 miles1h 9m
View Details
Feb 10, 20252.1t CO₂
KSJCSan Jose
KHIOPortland
567 miles1h 29m
View Details
Feb 8, 20252.6t CO₂
KBFISeattle
KSJCSan Jose
703 miles1h 49m
View Details
Feb 7, 20252.5t CO₂
KSJCSan Jose
KBFISeattle
703 miles1h 46m
View Details
Feb 3, 20253.2t CO₂
KBFISeattle
KSJCSan Jose
703 miles2h 11m
View Details
Jan 27, 20252.6t CO₂
KSJCSan Jose
KBFISeattle
703 miles1h 49m
View Details
Jan 25, 20252.5t CO₂
KBFISeattle
KSJCSan Jose
703 miles1h 44m
View Details
Jan 20, 20252.5t CO₂
KSJCSan Jose
KBFISeattle
703 miles1h 44m
View Details
Jan 20, 20252.3t CO₂
KBFISeattle
KSJCSan Jose
703 miles1h 38m
View Details
Jan 15, 20252.5t CO₂
KSJCSan Jose
KBFISeattle
703 miles1h 44m
View Details
Jan 10, 20251.6t CO₂
KHNDLas Vegas
KSJCSan Jose
388 miles1h 12m
View Details
Jan 8, 20251.5t CO₂
KSJCSan Jose
KHNDLas Vegas
388 miles1h 8m
View Details
Jan 5, 20252.4t CO₂
KBFISeattle
KSJCSan Jose
703 miles1h 41m
View Details
Jan 4, 20252.9t CO₂
KSJCSan Jose
KBFISeattle
703 miles2h 0m
View Details
Top Airports by Emissions
San Jose

San Jose

KSJC

Total CO₂

157.7t

Total Visits

60

Avg CO₂/visit

2.6t

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

Seattle

KBFI

Total CO₂

128.1t

Total Visits

48

Avg CO₂/visit

2.7t

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

Austin

KAUS

Total CO₂

34.0t

Total Visits

6

Avg CO₂/visit

5.7t

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

Wichita

KICT

Total CO₂

12.3t

Total Visits

3

Avg CO₂/visit

4.1t

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

Portland

KHIO

Total CO₂

12.1t

Total Visits

6

Avg CO₂/visit

2.0t

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

Appleton

KATW

Total CO₂

7.9t

Total Visits

2

Avg CO₂/visit

3.9t

Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Page 1 of 4
Top Routes by Emissions
Seattle San Jose

KBFI to KSJC703 miles

Total Flights

21

Avg CO₂/Flight

2.5t

Total Emissions

53.3t CO₂

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

KSJC to KBFI703 miles

Total Flights

17

Avg CO₂/Flight

2.6t

Total Emissions

43.7t CO₂

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

KAUS to KSJC1,474 miles

Total Flights

2

Avg CO₂/Flight

5.6t

Total Emissions

11.1t CO₂

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

KSJC to KAUS1,474 miles

Total Flights

2

Avg CO₂/Flight

5.0t

Total Emissions

10.1t CO₂

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

KAUS to KBFI1,772 miles

Total Flights

1

Avg CO₂/Flight

7.3t

Total Emissions

7.3t CO₂

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

KHIO to KSJC568 miles

Total Flights

3

Avg CO₂/Flight

2.1t

Total Emissions

6.4t CO₂

Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Page 1 of 5