CarbonSkyIndex
BOS
SJU

Boston → San Juan

4h 16m avg · 1,679 miles · 1459nm · Recently active route — first recorded March 2026

94.8t 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 · 31 Jan 2026 – 2 Mar 2026
2 Mar 2026 – 1 Apr 2026·vs 31 Jan 2026 – 2 Mar 2026
Route Impact Summary
Total CO₂
94.8tons
Flights
7flights
Avg CO₂/Flight
10.8tons
CO₂/nm
0.0074t CO₂/nm
Fuel Burned
8Kgallons
94.9 tons CO₂ in selected period
Emissions spike detected
Emissions 74% above route average on 11 Mar

Route Patterns

Route activity broadly consistent with prior period — averaging 10.5t CO₂ per flight

94.8t
Total CO₂
10.5t
Avg CO₂/flight
9
Flights
Operator Profile
Charter
60%3 flights26.3t
Owner
40%2 flights20.2t

Charter/owner data available for 56% of flights (4 unclassified)

Top Aircraft Models
Cessna Citation Latitude27.1t CO₂
3 flights · avg 9.0t/flight · 29%
Cessna Citation Sovereign17.7t CO₂
1 flight · avg 17.7t/flight · 19%
Bombardier Challenger 30016.6t CO₂
2 flights · avg 8.3t/flight · 18%
Gulfstream GIV15.3t CO₂
1 flight · avg 15.3t/flight · 16%
Dassault Falcon 7X9.9t CO₂
1 flight · avg 9.9t/flight · 10%
📍International route·medium-haul route · 1,459nm

Spikes

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

CO₂ Above Baseline

16t

Signals Detected

1

Highest Severity

Medium

Emissions
Medium
New11 Mar 2026
Emissions spike on 11 Mar 2026 — 20.7t CO₂ vs route daily average of 4.6t (354% above)
20.7t CO₂ on 11 Mar 2026 — 354% above route average

Aircraft Flying This Route

Aircraft Flying This Route
N980QS·Cessna Citation Latitude
12.5t CO₂ · avg 12.5t/flight · Last seen 11 Mar 2026
N703MDCharter·Dassault Falcon 7X
9.9t CO₂ · avg 9.9t/flight · Last seen 12 Mar 2026
N252QSCharter·Bombardier Challenger 600
8.2t CO₂ · avg 8.2t/flight · Last seen 7 Mar 2026
N782QSCharter·Bombardier Challenger 300
8.2t CO₂ · avg 8.2t/flight · Last seen 11 Mar 2026
N989QS·Cessna Citation Latitude
7.6t CO₂ · avg 7.6t/flight · Last seen 13 Mar 2026

All Recorded Flights on This Route

9 total flights recorded

Showing most recent flights — not filtered by viewing period

Mar 24, 2026N510FXBombardier Challenger 300·8.5t CO₂Typical3h 28m→
Mar 21, 2026N376QSCessna Citation Sovereign·17.7t CO₂Above avg7h 33m→
Mar 19, 2026N465FXGulfstream GIV·15.3t CO₂Above avg3h 38m→
Mar 16, 2026N904QSCessna Citation Latitude·7.0t CO₂Below avg3h 33m→
Mar 13, 2026N989QSCessna Citation Latitude·7.6t CO₂Below avg3h 53m→
Mar 12, 2026N703MDDassault Falcon 7X·9.9t CO₂Typical3h 20m→
Mar 11, 2026N980QSCessna Citation Latitude·12.5t CO₂Typical6h 17m→
Mar 11, 2026N782QSBombardier Challenger 300·8.2t CO₂Below avg3h 22m→
Mar 7, 2026N252QSBombardier Challenger 600·8.2t CO₂Below avg3h 23m→