CarbonSkyIndex
IAD
KJZI

Washington → Johns Island

1h 11m avg · 455 miles · 395nm · Recently active route — first recorded March 2026

76.3t CO₂ · Last 30 DaysTypical

Last updated March 31st 2026 at 9:35 AM UTC

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Viewing period:
Compared to: preceding 30 days · 30 Jan 2026 – 1 Mar 2026
1 Mar 2026 – 31 Mar 2026·vs 30 Jan 2026 – 1 Mar 2026
Route Impact Summary
Total CO₂
76.3tons
Flights
18flights
Avg CO₂/Flight
2.2tons
CO₂/nm
0.0056t CO₂/nm
Fuel Burned
5Kgallons
76.2 tons CO₂ in selected period
Emissions spike detected
Emissions 120% above route average on 11 Mar

Route Patterns

Route activity broadly consistent with prior period — averaging 2.2t CO₂ per flight

76.3t
Total CO₂
2.2t
Avg CO₂/flight
35
Flights
Operator Profile
Charter
56%5 flights9.9t
Owner
44%4 flights10.1t

Mixed charter and owner-operated activity

Charter/owner data available for 26% of flights (26 unclassified)

Top Aircraft Models
Bombardier Challenger 30011.2t CO₂
5 flights · avg 2.2t/flight · 15%
Bombardier Challenger 60010.0t CO₂
4 flights · avg 2.5t/flight · 13%
Cessna Citation Latitude8.9t CO₂
4 flights · avg 2.2t/flight · 12%
Cessna Citation XLS8.8t CO₂
4 flights · avg 2.2t/flight · 12%
Cessna Citation Longitude7.5t CO₂
3 flights · avg 2.5t/flight · 10%
📍International route·short-haul route · 395nm

Spikes

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

CO₂ Above Baseline

6t

Signals Detected

1

Highest Severity

Medium

Emissions
Medium
New11 Mar 2026
Emissions spike on 11 Mar 2026 — 9.3t CO₂ vs route daily average of 2.8t (228% above)
9.3t CO₂ on 11 Mar 2026 — 228% above route average

Aircraft Flying This Route

Aircraft Flying This Route
N204QS·Bombardier Challenger 600
5.1t CO₂ · avg 2.6t/flight · Last seen 15 Mar 2026
N963XP·Hawker 750/850
5.0t CO₂ · avg 2.5t/flight · Last seen 12 Mar 2026
N933MRCharter·Cessna Citation Excel
4.2t CO₂ · avg 2.1t/flight · Last seen 17 Mar 2026
N536QSCharter·Cessna Citation Latitude
4.1t CO₂ · avg 2.0t/flight · Last seen 6 Mar 2026
N431QSCharter·Embraer Phenom 300
1.7t CO₂ · avg 1.7t/flight · Last seen 6 Mar 2026

Recent Flights

35 total flights recorded

Showing most recent flights — not filtered by viewing period

Mar 30, 2026N350ZBBombardier Challenger 300·2.5t CO₂Typical1h 10m→
Mar 29, 2026N106PCCessna Citation X·3.0t CO₂Above avg1h 15m→
Mar 29, 2026N158AFPilatus PC-24·1.7t CO₂Below avg1h 19m→
Mar 29, 2026N262QSBombardier Challenger 600·2.6t CO₂Typical1h 11m→
Mar 28, 2026N661UPEmbraer Phenom 300·1.6t CO₂Below avg1h 15m→
Mar 28, 2026N399FXEmbraer Phenom 300·1.6t CO₂Below avg1h 17m→
Mar 28, 2026N818SBBombardier Challenger 300·2.3t CO₂Typical1h 6m→
Mar 28, 2026N809JSCessna Citation XLS·2.4t CO₂Typical1h 28m→
Mar 27, 2026N828QSCessna Citation Longitude·2.7t CO₂Above avg1h 14m→
Mar 27, 2026N269AFPilatus PC-24·1.9t CO₂Typical1h 27m→
Showing 10 of 35 flights