N277JH
Bombardier Challenger 300
United States
BDL (Bradley International Airport, Windsor Locks)

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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

3.9
Tons CO2 This Month
Below Average0.1× avg for Challenger 300
26.2
Tons CO2 YTD
Below Average0.2× avg for Challenger 300
144.4
CO2 Tons Since 2025
Below Average0.2× avg for Challenger 300
Emissions Intensity0.01t CO₂/nmTypical0.8× avg for Challenger 300
87.3 tons CO2 in selected period

2026 pace: On track for approximately 79t CO₂ by year end · ↓ 34% vs full year 2025 (118t)

Flight Patterns & Behaviour

Emissions up 66% vs prior period, driven by Windsor Locks → Granby

91t
Period total CO₂
6.5t
Avg per flight
14
Flights
Moderately Concentrated3 routes account for 50% of total emissions
Highest emission route
Windsor Locks → Granby
20.1t CO₂ total · 0.0067t CO₂/nm
🇺🇸United States·16202 aircraft tracked·Ranked 1st by emissions among 109 countries·0.4× country averageBelow Average

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

What's ChangedCompared to prior equivalent period
Emissions
66%
55t → 91t CO₂
Intensity
3%
0.0061 → 0.0060 t CO₂/nm
New Routes
11
67t CO₂ combined
Dropped Routes
6
Prior period only
Avg per Flight
6%
6.1t → 6.5t
Flight Count
5
9 → 14 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

87t

Signals Detected

5

Highest Severity

High

Aircraft
High
New8 May – 21 May 2025
Elevated activity period · 3 flights in 13 days vs baseline of 1
Contributed approximately 28t CO₂ to period total — 31% of period emissions
Aircraft
Medium
New16 Oct – 29 Oct 2025
Elevated activity period · 3 flights in 13 days vs baseline of 1
Contributed approximately 18t CO₂ to period total — 20% of period emissions
Aircraft
Medium
New9 Dec – 22 Dec 2025
Elevated activity period · 3 flights in 13 days vs baseline of 1
Contributed approximately 11t CO₂ to period total — 13% of period emissions
Aircraft
Medium
Historical15 May – 22 Oct 2025
160-day inactive period
18.1t CO₂ in the 7 days following resumption
Aircraft
Medium
Historical26 Oct – 15 Dec 2025
50-day inactive period
11.4t CO₂ in the 7 days following resumption
Recent Flights
Mar 26, 20267.7t CO₂
KEGEEagle
KBDLWindsor Locks
1,785 miles3h 12m
Mar 18, 20263.9t CO₂
KEGEEagle
KBURBurbank
734 miles1h 43m
Jan 24, 202610.9t CO₂
KBDLWindsor Locks
KGNBGranby
1,725 miles4h 24m
Jan 20, 20261.1t CO₂
KPNEPhiladelphia
KBDLWindsor Locks
176 miles38m
View Details
Jan 15, 20269.2t CO₂
KBDLWindsor Locks
KGNBGranby
1,725 miles3h 46m
View Details
Dec 19, 20253.6t CO₂
KAGSAugusta
KBDLWindsor Locks
778 miles1h 36m
View Details
Dec 18, 20252.0t CO₂
KLALLakeland
KAGSAugusta
371 miles59m
View Details
Dec 15, 20255.8t CO₂
KBDLWindsor Locks
KLALLakeland
1,096 miles2h 26m
View Details
Oct 26, 20253.3t CO₂
KBURBurbank
KSBSSteamboat Springs
766 miles1h 28m
View Details
Oct 23, 20252.4t CO₂
KSDLScottsdale
KBURBurbank
372 miles1h 9m
View Details
Oct 22, 202512.4t CO₂
KBDLWindsor Locks
KSDLScottsdale
2,195 miles5h 0m
View Details
May 15, 202511.7t CO₂
KBURBurbank
KBDLWindsor Locks
2,509 miles4h 43m
View Details
May 10, 20253.5t CO₂
KBURBurbank
KEGEEagle
734 miles1h 34m
View Details
May 8, 202513.1t CO₂
KBDLWindsor Locks
KBURBurbank
2,509 miles5h 17m
View Details
Apr 24, 20253.3t CO₂
KBURBurbank
KSBSSteamboat Springs
766 miles1h 29m
View Details
Apr 14, 20259.7t CO₂
KBDLWindsor Locks
KGNBGranby
1,725 miles3h 56m
View Details
Mar 4, 20254.2t CO₂
KFTYAtlanta
KHPNWhite Plains
777 miles1h 49m
View Details
Mar 3, 202512.0t CO₂
KOAKOakland
KHPNWhite Plains
2,565 miles4h 51m
View Details
Feb 9, 20254.8t CO₂
KFTWFort Worth
KGNBGranby
690 miles2h 4m
View Details
Feb 1, 20259.9t CO₂
KBDLWindsor Locks
KGNBGranby
1,725 miles4h 2m
View Details
Jan 21, 20252.8t CO₂
KEGEEagle
KLASLas Vegas
511 miles1h 18m
View Details
Jan 8, 20257.2t CO₂
KFIGClearfield
KGNBGranby
1,438 miles2h 58m
View Details
Jan 8, 20251.0t CO₂
KBDLWindsor Locks
KHPNWhite Plains
80 miles25m
View Details
Top Airports by Emissions
Windsor Locks

Windsor Locks

KBDL

Total CO₂

75.6t

Total Visits

9

Avg CO₂/visit

8.4t

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

Burbank

KBUR

Total CO₂

38.0t

Total Visits

6

Avg CO₂/visit

6.3t

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

Granby

KGNB

Total CO₂

20.1t

Total Visits

2

Avg CO₂/visit

10.1t

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

Eagle

KEGE

Total CO₂

15.2t

Total Visits

3

Avg CO₂/visit

5.1t

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

Scottsdale

KSDL

Total CO₂

14.9t

Total Visits

2

Avg CO₂/visit

7.4t

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

Lakeland

KLAL

Total CO₂

7.8t

Total Visits

2

Avg CO₂/visit

3.9t

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

KBDL to KGNB1,726 miles

Total Flights

2

Avg CO₂/Flight

10.1t

Total Emissions

20.1t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Windsor Locks Burbank

KBDL to KBUR2,510 miles

Total Flights

1

Avg CO₂/Flight

13.1t

Total Emissions

13.1t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Windsor Locks Scottsdale

KBDL to KSDL2,197 miles

Total Flights

1

Avg CO₂/Flight

12.4t

Total Emissions

12.4t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Burbank Windsor Locks

KBUR to KBDL2,510 miles

Total Flights

1

Avg CO₂/Flight

11.7t

Total Emissions

11.7t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Eagle Windsor Locks

KEGE to KBDL1,786 miles

Total Flights

1

Avg CO₂/Flight

7.7t

Total Emissions

7.7t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Windsor Locks Lakeland

KBDL to KLAL1,097 miles

Total Flights

1

Avg CO₂/Flight

5.8t

Total Emissions

5.8t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Page 1 of 3