N999YY
Gulfstream G650
United States
PDX (Portland International Airport, Portland)

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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 increasing vs prior period

Emissions Overview

40.5
Tons CO2 This Month
Typical0.9× avg for G650
56.0
Tons CO2 YTD
Below Average0.4× avg for G650
79.1
CO2 Tons Since 2025
Below Average0.1× avg for G650
Emissions Intensity0.01t CO₂/nmTypical1.0× avg for G650
56.0 tons CO2 in selected period

2026 pace: On track for approximately 168t CO₂ by year end · ↑ 627% vs full year 2025 (23t)

Flight Patterns & Behaviour

Emissions up 226% vs prior period, driven by Portland → Houston

70t
Period total CO₂
6.4t
Avg per flight
11
Flights
Moderately Concentrated3 routes account for 53% of total emissions
Highest emission route
Portland → Houston
14.0t CO₂ total · 0.0087t 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
226%
22t → 70t CO₂
Intensity
17%
0.0091 → 0.0107 t CO₂/nm
New Routes
10
65t CO₂ combined
Dropped Routes
2
Prior period only
Avg per Flight
11%
7.2t → 6.4t
Flight Count
8
3 → 11 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

75t

Signals Detected

3

Highest Severity

High

Aircraft
High
New8 Mar – 14 Mar 2026
Elevated activity period · 5 flights in 6 days vs baseline of 2
Contributed approximately 33t CO₂ to period total — 47% of period emissions
Aircraft
Medium
Historical20 Feb – 12 Mar 2026
20-day inactive period
39.6t CO₂ in the 7 days following resumption
Avg Emissions
Medium
New14 Mar 2026 · KCZK → Portland
1 flight recorded with anomalous emissions intensity
1.9t CO₂ total — 3% of period emissions
Recent Flights
Mar 30, 20263.0t CO₂
KSJCSan Jose
KCMACamarillo
269 miles49m
Mar 29, 20265.5t CO₂
KPDXPortland
KSJCSan Jose
569 miles1h 21m
Mar 26, 20267.5t CO₂
KLASLas Vegas
KPDXPortland
762 miles1h 47m
Mar 16, 20266.4t CO₂
KPDXPortland
KLASLas Vegas
762 miles1h 33m
View Details
Mar 14, 202613.4t CO₂
KCDSChildress
KPDXPortland
1,402 miles3h 4m
View Details
Mar 14, 20261.9t CO₂
KCZK
KPDXPortland
35 miles11m
View Details
Mar 13, 202614.0t CO₂
KPDXPortland
KHOUHouston
1,840 miles3h 11m
View Details
Mar 12, 20261.9t CO₂
KYKMYakima
KPDXPortland
120 miles27m
View Details
Mar 12, 20261.9t CO₂
KPDXPortland
KYKMYakima
120 miles28m
View Details
Feb 20, 20265.1t CO₂
KBZNBozeman
KBFISeattle
542 miles1h 16m
View Details
Feb 20, 20269.6t CO₂
KATWAppleton
KBZNBozeman
1,106 miles2h 15m
View Details
Jan 6, 202510.8t CO₂
KSJCSan Jose
KAFWFort Worth
1,417 miles2h 30m
View Details
Jan 2, 20255.2t CO₂
KSJCSan Jose
KDLNDillon
729 miles1h 17m
View Details
Jan 2, 20255.6t CO₂
KPDXPortland
KSJCSan Jose
569 miles1h 22m
View Details
Top Airports by Emissions
Portland

Portland

KPDX

Total CO₂

52.6t

Total Visits

8

Avg CO₂/visit

6.6t

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

Bozeman

KBZN

Total CO₂

14.7t

Total Visits

2

Avg CO₂/visit

7.4t

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

Houston

KHOU

Total CO₂

14.0t

Total Visits

1

Avg CO₂/visit

14.0t

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

Las Vegas

KLAS

Total CO₂

13.9t

Total Visits

2

Avg CO₂/visit

6.9t

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

Childress

KCDS

Total CO₂

13.4t

Total Visits

1

Avg CO₂/visit

13.4t

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

Appleton

KATW

Total CO₂

9.6t

Total Visits

1

Avg CO₂/visit

9.6t

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

KPDX to KHOU1,841 miles

Total Flights

1

Avg CO₂/Flight

14.0t

Total Emissions

14t CO₂

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

KCDS to KPDX0 miles

Total Flights

1

Avg CO₂/Flight

13.4t

Total Emissions

13.4t CO₂

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

KATW to KBZN1,107 miles

Total Flights

1

Avg CO₂/Flight

9.6t

Total Emissions

9.6t CO₂

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

KLAS to KPDX762 miles

Total Flights

1

Avg CO₂/Flight

7.5t

Total Emissions

7.5t CO₂

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

KPDX to KLAS762 miles

Total Flights

1

Avg CO₂/Flight

6.4t

Total Emissions

6.4t CO₂

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

KPDX to KSJC569 miles

Total Flights

1

Avg CO₂/Flight

5.5t

Total Emissions

5.5t CO₂

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