N239CA
Bombardier Learjet 31
United States
CNO (Chino Airport, Chino)

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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

0.5
Tons CO2 This Month
Below Average0.1× avg for Learjet 31
10.2
Tons CO2 YTD
Below Average0.6× avg for Learjet 31
64.0
CO2 Tons Since 2025
Below Average0.7× avg for Learjet 31
Emissions Intensity0.01t CO₂/nmTypical1.0× avg for Learjet 31
58.9 tons CO2 in selected period

2026 pace: On track for approximately 41t CO₂ by year end · ↓ 24% vs full year 2025 (54t)

Flight Patterns & Behaviour

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

4.5t
CO₂/month
1.7t
Avg per flight
27
Distinct routes
Moderately Concentrated3 routes account for 40% of total emissions
Highest emission route
Carlsbad → Chino
9.0t CO₂ total · 0.0559t CO₂/nm

Seasonal pattern: Historically peaks in November · Current month is 77% below March 2025

🇺🇸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
>300%
5t → 54t CO₂
Intensity
39%
0.0060 → 0.0084 t CO₂/nm
New Routes
24
50t CO₂ combined
Dropped Routes
1
Prior period only
Avg per Flight
46%
1.2t → 1.7t
Flight Count
Prior data incomplete

Route and airport counts may include data processing artefacts.

Spikes

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

CO₂ Above Baseline

14t

Signals Detected

5

Highest Severity

Medium

Aircraft
Medium
New15 Aug – 21 Aug 2025
Elevated activity period · 1 flights in 6 days vs baseline of 1
Contributed approximately 4t CO₂ to period total — 7% of period emissions
Aircraft
Medium
New5 Sept – 11 Sept 2025
Elevated activity period · 1 flights in 6 days vs baseline of 1
Contributed approximately 1t CO₂ to period total — 1% of period emissions
Aircraft
Medium
New17 Oct – 23 Oct 2025
Elevated activity period · 1 flights in 6 days vs baseline of 1
Contributed approximately 1t CO₂ to period total — 1% of period emissions
Aircraft
Medium
Historical4 Apr – 28 May 2025
55-day inactive period
0.5t CO₂ in the 7 days following resumption
Aircraft
Medium
Historical28 May – 18 Aug 2025
82-day inactive period
8.0t CO₂ in the 7 days following resumption
Recent Flights
Mar 10, 20260.5t CO₂
KCNOChino
KTSPTehachapi
92 miles18m
Feb 13, 20260.6t CO₂
KCNOChino
KIFPBullhead City
193 miles36m
Feb 9, 20261.8t CO₂
KSLCSalt Lake City
KCNOChino
563 miles1h 19m
Feb 9, 20261.2t CO₂
KHNDLas Vegas
KSLCSalt Lake City
374 miles59m
View Details
Feb 6, 20261.6t CO₂
KSLCSalt Lake City
KHNDLas Vegas
374 miles1h 11m
View Details
Feb 6, 20261.8t CO₂
KCNOChino
KSLCSalt Lake City
563 miles1h 18m
View Details
Feb 6, 20260.5t CO₂
KSBDSan Bernardino
KCNOChino
24 miles8m
View Details
Jan 5, 20260.5t CO₂
KMHVMojave
KCNOChino
80 miles22m
View Details
Jan 5, 20260.5t CO₂
KCNOChino
KMHVMojave
80 miles20m
View Details
Dec 28, 20250.5t CO₂
KVNYVan Nuys
KCNOChino
51 miles17m
View Details
Dec 28, 20251.9t CO₂
KTUSTucson
KVNYVan Nuys
460 miles1h 22m
View Details
Dec 26, 20251.5t CO₂
KVNYVan Nuys
KTUSTucson
460 miles1h 7m
View Details
Dec 26, 20250.5t CO₂
KCNOChino
KVNYVan Nuys
51 miles17m
View Details
Dec 16, 20251.1t CO₂
KDVTPhoenix
KCNOChino
319 miles53m
View Details
Dec 12, 20254.3t CO₂
KDVTPhoenix
KBOIBoise
717 miles2h 47m
View Details
Dec 12, 20251.0t CO₂
KCNOChino
KDVTPhoenix
319 miles50m
View Details
Dec 8, 20251.0t CO₂
KCNOChino
NaN miles52m
View Details
Nov 29, 20250.5t CO₂
KCRQCarlsbad
KCNOChino
62 miles22m
View Details
Nov 29, 20257.5t CO₂
KCNOChino
KCRQCarlsbad
62 miles4h 39m
View Details
Nov 25, 20258.0t CO₂
KCRQCarlsbad
KCNOChino
62 miles4h 53m
View Details
Nov 24, 20250.5t CO₂
KCNOChino
KCRQCarlsbad
62 miles18m
View Details
Nov 13, 20250.5t CO₂
KCNOChino
KBFLBakersfield
129 miles18m
View Details
Oct 23, 20250.5t CO₂
KHNDLas Vegas
KCNOChino
198 miles35m
View Details
Oct 21, 20250.6t CO₂
KCNOChino
KHNDLas Vegas
198 miles38m
View Details
Sep 11, 20251.9t CO₂
KCNOChino
NaN miles1h 22m
View Details
Sep 11, 20252.9t CO₂
KCRQCarlsbad
KLWSLewiston
915 miles1h 58m
View Details
Sep 8, 20250.5t CO₂
KCNOChino
KTNPTwentynine Palms
97 miles18m
View Details
Aug 21, 20254.0t CO₂
KOAKOakland
KCNOChino
365 miles2h 34m
View Details
Aug 18, 20254.0t CO₂
KCNOChino
KOAKOakland
365 miles2h 36m
View Details
May 28, 20250.5t CO₂
KCNOChino
KMHVMojave
80 miles15m
View Details
Apr 4, 20250.5t CO₂
KCRQCarlsbad
KCNOChino
62 miles20m
View Details
Mar 3, 20252.3t CO₂
KSLESalem
KCNOChino
807 miles1h 37m
View Details
Jan 16, 20250.5t CO₂
KCNOChino
KTNPTwentynine Palms
97 miles17m
View Details
Jan 13, 20250.7t CO₂
KCNOChino
NaN miles41m
View Details
Jan 13, 20251.1t CO₂
KCNOChino
NaN miles56m
View Details
Top Airports by Emissions
Chino

Chino

KCNO

Total CO₂

40.2t

Total Visits

25

Avg CO₂/visit

1.6t

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

Carlsbad

KCRQ

Total CO₂

20.1t

Total Visits

6

Avg CO₂/visit

3.3t

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

Oakland

KOAK

Total CO₂

8.0t

Total Visits

2

Avg CO₂/visit

4.0t

Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Salt Lake City

Salt Lake City

KSLC

Total CO₂

6.4t

Total Visits

4

Avg CO₂/visit

1.6t

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

Phoenix

KDVT

Total CO₂

6.4t

Total Visits

3

Avg CO₂/visit

2.1t

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

Van Nuys

KVNY

Total CO₂

4.4t

Total Visits

4

Avg CO₂/visit

1.1t

Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Page 1 of 3
Top Routes by Emissions
Carlsbad Chino

KCRQ to KCNO62 miles

Total Flights

3

Avg CO₂/Flight

3.0t

Total Emissions

9t CO₂

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

KCNO to KCRQ62 miles

Total Flights

2

Avg CO₂/Flight

4.0t

Total Emissions

8.1t CO₂

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

KDVT to KBOI718 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
Chino Oakland

KCNO to KOAK365 miles

Total Flights

1

Avg CO₂/Flight

4.0t

Total Emissions

4t CO₂

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

KOAK to KCNO365 miles

Total Flights

1

Avg CO₂/Flight

4.0t

Total Emissions

4t CO₂

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

KCRQ to KLWS915 miles

Total Flights

1

Avg CO₂/Flight

2.9t

Total Emissions

2.9t CO₂

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