N696HS
Bombardier Challenger 600
United States
BFI (King County International Airport, Seattle)

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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

33.6
Tons CO2 This Month
Typical1.4× avg for Challenger 600
88.0
Tons CO2 YTD
Typical1.2× avg for Challenger 600
482.8
CO2 Tons Since 2025
Typical1.2× avg for Challenger 600
Emissions Intensity0.02t CO₂/nmAbove Average2.6× avg for Challenger 600
320.9 tons CO2 in selected period

2026 pace: On track for approximately 264t CO₂ by year end · ↓ 33% vs full year 2025 (395t)

Flight Patterns & Behaviour

Emissions up 104% vs prior period, driven by Seattle → Tucson

312t
Period total CO₂
5.2t
Avg per flight
60
Flights
Moderately Concentrated3 routes account for 65% of total emissions
Highest emission route
Seattle → Tucson
129.6t CO₂ total · 0.0056t CO₂/nm
🇺🇸United States·16202 aircraft tracked·Ranked 1st by emissions among 109 countries·1.3× country averageTypical

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

What's ChangedCompared to prior equivalent period
Emissions
104%
153t → 312t CO₂
Intensity
0.0057 → 0.0058 t CO₂/nm
New Routes
16
105t CO₂ combined
Dropped Routes
10
Prior period only
Avg per Flight
5%
5.5t → 5.2t
Flight Count
32
28 → 60 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

98t

Signals Detected

5

Highest Severity

Medium

Aircraft
Medium
New2 May – 27 May 2025
Elevated activity period · 10 flights in 25 days vs baseline of 5
Contributed approximately 33t CO₂ to period total — 10% of period emissions
Aircraft
Medium
New12 Jun – 18 Jun 2025
Elevated activity period · 2 flights in 6 days vs baseline of 1
Contributed approximately 12t CO₂ to period total — 4% of period emissions
Aircraft
Medium
New18 Jul – 31 Jul 2025
Elevated activity period · 6 flights in 13 days vs baseline of 2
Contributed approximately 26t CO₂ to period total — 8% of period emissions
Aircraft
Medium
Historical27 May – 14 Jun 2025
17-day inactive period
17.5t CO₂ in the 7 days following resumption
Aircraft
Medium
Historical29 Jun – 19 Jul 2025
21-day inactive period
9.8t CO₂ in the 7 days following resumption
Recent Flights
Mar 30, 20266.6t CO₂
KTUSTucson
KBFISeattle
1,220 miles2h 46m
Mar 28, 20265.9t CO₂
KBFISeattle
KTUSTucson
1,220 miles2h 29m
Mar 21, 20265.9t CO₂
KBFISeattle
KTUSTucson
1,220 miles2h 29m
Mar 21, 20266.1t CO₂
KTUSTucson
KBFISeattle
1,220 miles2h 34m
View Details
Mar 14, 20265.6t CO₂
KBFISeattle
KTUSTucson
1,220 miles2h 21m
View Details
Mar 14, 20261.7t CO₂
KBKEBaker City
KBFISeattle
284 miles50m
View Details
Feb 28, 20265.3t CO₂
KBFISeattle
KTUSTucson
1,220 miles2h 15m
View Details
Feb 23, 20263.5t CO₂
KOAKOakland
KBFISeattle
677 miles1h 33m
View Details
Feb 23, 20261.3t CO₂
KOAKOakland
NaN miles41m
View Details
Feb 20, 202611.9t CO₂
KOAKOakland
PHIKHonolulu
2,405 miles4h 50m
View Details
Feb 16, 20266.1t CO₂
KBFISeattle
KTUSTucson
1,220 miles2h 34m
View Details
Feb 15, 20266.1t CO₂
KTUSTucson
KBFISeattle
1,220 miles2h 33m
View Details
Feb 8, 20262.8t CO₂
KSLCSalt Lake City
KTUSTucson
601 miles1h 16m
View Details
Feb 2, 20266.0t CO₂
KBFISeattle
KTUSTucson
1,220 miles2h 31m
View Details
Feb 2, 20266.2t CO₂
KTUSTucson
KBFISeattle
1,220 miles2h 35m
View Details
Jan 31, 20265.5t CO₂
KBFISeattle
KTUSTucson
1,220 miles2h 19m
View Details
Jan 29, 20267.3t CO₂
KTUSTucson
KBFISeattle
1,220 miles3h 2m
View Details
Dec 11, 20254.6t CO₂
KDLSDallesport / The Dalles
KTUSTucson
1,080 miles1h 58m
View Details
Dec 11, 20256.5t CO₂
KTUSTucson
KBFISeattle
1,220 miles2h 43m
View Details
Dec 2, 20255.3t CO₂
KBFISeattle
KTUSTucson
1,220 miles2h 15m
View Details
Dec 1, 20256.9t CO₂
KTUSTucson
KBFISeattle
1,220 miles2h 53m
View Details
Nov 26, 20255.5t CO₂
KBFISeattle
KTUSTucson
1,220 miles2h 19m
View Details
Nov 21, 20256.8t CO₂
KTUSTucson
KBFISeattle
1,220 miles2h 50m
View Details
Nov 16, 20255.4t CO₂
KCLMPort Angeles
KTUSTucson
1,285 miles2h 17m
View Details
Nov 16, 20251.0t CO₂
KBFISeattle
KCLMPort Angeles
68 miles26m
View Details
Nov 13, 20256.4t CO₂
KTUSTucson
KBFISeattle
1,220 miles2h 40m
View Details
Nov 1, 20255.7t CO₂
KBFISeattle
KTUSTucson
1,220 miles2h 24m
View Details
Oct 28, 20255.2t CO₂
KBFISeattle
KTUSTucson
1,220 miles2h 13m
View Details
Oct 28, 20255.9t CO₂
KSANSan Diego
KBFISeattle
1,056 miles2h 29m
View Details
Oct 23, 20255.0t CO₂
KBFISeattle
KSANSan Diego
1,056 miles2h 9m
View Details
Oct 6, 20255.7t CO₂
KBFISeattle
KTUSTucson
1,220 miles2h 25m
View Details
Oct 4, 20255.7t CO₂
KBFISeattle
KTUSTucson
1,220 miles2h 25m
View Details
Oct 2, 202510.6t CO₂
KCLECleveland
KBFISeattle
2,014 miles4h 19m
View Details
Sep 26, 202511.1t CO₂
KBFISeattle
KRDURaleigh/Durham
2,348 miles4h 31m
View Details
Sep 24, 20253.2t CO₂
KOAKOakland
KBFISeattle
677 miles1h 26m
View Details
Sep 7, 20256.0t CO₂
KBFISeattle
KTUSTucson
1,220 miles2h 32m
View Details
Aug 4, 20255.9t CO₂
KBFISeattle
KTUSTucson
1,220 miles2h 28m
View Details
Jul 31, 20258.1t CO₂
KSAVSavannah
KTUSTucson
1,733 miles3h 21m
View Details
Jul 31, 20251.0t CO₂
KCSGColumbus
KSAVSavannah
220 miles33m
View Details
Jul 31, 20256.2t CO₂
KBFISeattle
KTUSTucson
1,220 miles2h 35m
View Details
Jul 28, 20259.3t CO₂
KBFISeattle
KTUSTucson
1,220 miles3h 48m
View Details
Jul 24, 20253.8t CO₂
KSTSSanta Rosa
KTUSTucson
800 miles1h 40m
View Details
Jul 24, 20253.0t CO₂
KBFISeattle
KSTSSanta Rosa
624 miles1h 21m
View Details
Jul 19, 20253.0t CO₂
KPVUProvo
KTUSTucson
561 miles1h 20m
View Details
Jun 29, 20255.8t CO₂
KBFISeattle
KTUSTucson
1,220 miles2h 26m
View Details
Jun 26, 20255.8t CO₂
KBFISeattle
KTUSTucson
1,220 miles2h 27m
View Details
Jun 18, 20255.6t CO₂
KBFISeattle
KTUSTucson
1,220 miles2h 22m
View Details
Jun 16, 20255.9t CO₂
KBFISeattle
KTUSTucson
1,220 miles2h 30m
View Details
Jun 14, 20256.0t CO₂
KBFISeattle
KTUSTucson
1,220 miles2h 31m
View Details
May 27, 20253.9t CO₂
KSTSSanta Rosa
KTUSTucson
800 miles1h 41m
View Details
May 27, 20252.9t CO₂
KBFISeattle
KSTSSanta Rosa
624 miles1h 19m
View Details
May 22, 20253.7t CO₂
KOAKOakland
KTUSTucson
746 miles1h 38m
View Details
May 22, 20253.7t CO₂
KBFISeattle
KOAKOakland
677 miles1h 38m
View Details
May 18, 20254.4t CO₂
KOAKOakland
KBFISeattle
677 miles1h 53m
View Details
May 12, 20253.7t CO₂
KSTSSanta Rosa
KTUSTucson
800 miles1h 37m
View Details
May 12, 20253.5t CO₂
KBFISeattle
KSTSSanta Rosa
624 miles1h 33m
View Details
May 5, 20253.4t CO₂
KSTSSanta Rosa
KBFISeattle
624 miles1h 30m
View Details
May 5, 20251.0t CO₂
KOAKOakland
KSTSSanta Rosa
63 miles17m
View Details
May 5, 20253.3t CO₂
KBFISeattle
KOAKOakland
677 miles1h 27m
View Details
May 2, 20253.1t CO₂
KOAKOakland
KBFISeattle
677 miles1h 24m
View Details
Apr 20, 20255.7t CO₂
KBFISeattle
KTUSTucson
1,220 miles2h 24m
View Details
Apr 17, 20258.8t CO₂
KBFISeattle
KHOUHouston
1,894 miles3h 36m
View Details
Apr 14, 20256.0t CO₂
KBFISeattle
KTUSTucson
1,220 miles2h 31m
View Details
Apr 12, 20255.9t CO₂
KBFISeattle
KTUSTucson
1,220 miles2h 29m
View Details
Apr 4, 20254.1t CO₂
KSJCSan Jose
KBFISeattle
703 miles1h 46m
View Details
Apr 2, 20253.7t CO₂
KBFISeattle
KSJCSan Jose
703 miles1h 36m
View Details
Mar 24, 20255.5t CO₂
KBFISeattle
KTUSTucson
1,220 miles2h 20m
View Details
Mar 22, 20255.5t CO₂
KBFISeattle
KTUSTucson
1,220 miles2h 19m
View Details
Mar 21, 20256.9t CO₂
KTUSTucson
KBFISeattle
1,220 miles2h 52m
View Details
Mar 5, 20255.8t CO₂
KBFISeattle
KTUSTucson
1,220 miles2h 27m
View Details
Mar 4, 20257.0t CO₂
KTUSTucson
KBFISeattle
1,220 miles2h 56m
View Details
Mar 1, 20256.0t CO₂
KBFISeattle
KTUSTucson
1,220 miles2h 32m
View Details
Feb 20, 20253.5t CO₂
KOAKOakland
KTUSTucson
746 miles1h 32m
View Details
Feb 19, 20251.0t CO₂
KSTSSanta Rosa
KOAKOakland
63 miles21m
View Details
Feb 19, 20253.7t CO₂
KBFISeattle
KSTSSanta Rosa
624 miles1h 37m
View Details
Feb 18, 20255.7t CO₂
KONTOntario
KBFISeattle
962 miles2h 23m
View Details
Feb 17, 20253.8t CO₂
KBFISeattle
KONTOntario
962 miles1h 40m
View Details
Feb 16, 202512.7t CO₂
PHIKHonolulu
KBFISeattle
2,678 miles5h 10m
View Details
Feb 11, 202513.4t CO₂
KBFISeattle
PHIKHonolulu
2,678 miles5h 25m
View Details
Feb 9, 20253.3t CO₂
KSTSSanta Rosa
KBFISeattle
624 miles1h 27m
View Details
Feb 9, 20251.0t CO₂
KOAKOakland
KSTSSanta Rosa
63 miles16m
View Details
Feb 9, 20254.2t CO₂
KTUSTucson
KOAKOakland
746 miles1h 50m
View Details
Jan 24, 20255.8t CO₂
KBFISeattle
KTUSTucson
1,220 miles2h 26m
View Details
Jan 21, 20255.4t CO₂
KBFISeattle
KTUSTucson
1,220 miles2h 18m
View Details
Jan 20, 20251.0t CO₂
KTUSTucson
KCMRWilliams
231 miles31m
View Details
Jan 18, 20255.4t CO₂
KBFISeattle
KTUSTucson
1,220 miles2h 16m
View Details
Jan 4, 20255.9t CO₂
KBFISeattle
KTUSTucson
1,220 miles2h 30m
View Details
Jan 4, 20256.1t CO₂
KTUSTucson
KBFISeattle
1,220 miles2h 33m
View Details
Top Airports by Emissions
Seattle

Seattle

KBFI

Total CO₂

257.7t

Total Visits

47

Avg CO₂/visit

5.5t

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

Tucson

KTUS

Total CO₂

227.3t

Total Visits

40

Avg CO₂/visit

5.7t

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

Oakland

KOAK

Total CO₂

39.1t

Total Visits

10

Avg CO₂/visit

3.9t

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

Santa Rosa

KSTS

Total CO₂

25.2t

Total Visits

8

Avg CO₂/visit

3.1t

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

Honolulu

PHIK

Total CO₂

11.9t

Total Visits

1

Avg CO₂/visit

11.9t

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Raleigh/Durham

Raleigh/Durham

KRDU

Total CO₂

11.1t

Total Visits

1

Avg CO₂/visit

11.1t

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

KBFI to KTUS1,221 miles

Total Flights

22

Avg CO₂/Flight

5.9t

Total Emissions

129.6t CO₂

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

KTUS to KBFI1,221 miles

Total Flights

9

Avg CO₂/Flight

6.5t

Total Emissions

58.8t CO₂

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

KOAK to KBFI677 miles

Total Flights

4

Avg CO₂/Flight

3.6t

Total Emissions

14.2t CO₂

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

KOAK to PHIK2,407 miles

Total Flights

1

Avg CO₂/Flight

11.9t

Total Emissions

11.9t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Santa Rosa Tucson

KSTS to KTUS801 miles

Total Flights

3

Avg CO₂/Flight

3.8t

Total Emissions

11.4t CO₂

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

KBFI to KRDU2,349 miles

Total Flights

1

Avg CO₂/Flight

11.1t

Total Emissions

11.1t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Page 1 of 4