CarbonSkyIndex
SJC
AUS

San Jose → Austin

3h 7m avg · 1,474 miles · 1281nm · Recently active route — first recorded March 2026

423.1t 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
423.1tons
Flights
20flights
Avg CO₂/Flight
9.0tons
CO₂/nm
0.0070t CO₂/nm
Fuel Burned
20Kgallons
422.9 tons CO₂ in selected period
Emissions spike detected
Emissions 151% above route average on 18 Mar

Route Patterns

Predominantly owner-operated — 86% of flights are owner-operated aircraft

423.1t
Total CO₂
9.4t
Avg CO₂/flight
45
Flights
Operator Profile
Charter
14%2 flights25.2t
Owner
86%12 flights111.1t

Charter/owner data available for 31% of flights (31 unclassified)

Top Aircraft Models
Gulfstream G65066.1t CO₂
5 flights · avg 13.2t/flight · 16%
Gulfstream GIV64.7t CO₂
5 flights · avg 12.9t/flight · 15%
Gulfstream GV45.2t CO₂
4 flights · avg 11.3t/flight · 11%
Bombardier Challenger 30038.4t CO₂
5 flights · avg 7.7t/flight · 9%
Gulfstream G70031.1t CO₂
3 flights · avg 10.4t/flight · 7%
📍International route·medium-haul route · 1,281nm

Spikes

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

CO₂ Above Baseline

24t

Signals Detected

1

Highest Severity

Medium

Emissions
Medium
New12 Mar 2026
Emissions spike on 12 Mar 2026 — 40.3t CO₂ vs route daily average of 16.5t (144% above)
40.3t CO₂ on 12 Mar 2026 — 144% above route average

Aircraft Flying This Route

Aircraft Flying This Route
N705GD·Gulfstream G700
31.1t CO₂ · avg 10.4t/flight · Last seen 18 Mar 2026
N654DP·Bombardier Learjet 45
28.2t CO₂ · avg 5.6t/flight · Last seen 26 Mar 2026
N6D·Gulfstream G650
26.1t CO₂ · avg 13.0t/flight · Last seen 18 Mar 2026
N628TS·Gulfstream G650
25.8t CO₂ · avg 12.9t/flight · Last seen 16 Mar 2026
N8VCCharter·Gulfstream GIV
25.2t CO₂ · avg 12.6t/flight · Last seen 18 Mar 2026

Recent Flights

45 total flights recorded

Showing most recent flights — not filtered by viewing period

Mar 26, 2026N117WHHawker 750/850·8.0t CO₂Typical3h 24m→
Mar 26, 2026N654DPBombardier Learjet 45·5.5t CO₂Below avg3h 9m→
Mar 26, 2026N654DPBombardier Learjet 45·5.4t CO₂Below avg3h 6m→
Mar 24, 2026N654DPBombardier Learjet 45·5.6t CO₂Below avg3h 10m→
Mar 22, 2026N280TMGulfstream G280·8.2t CO₂Typical3h 11m→
Mar 22, 2026N272BGGulfstream GV·10.5t CO₂Typical2h 58m→
Mar 21, 2026N461FXGulfstream GIV·12.8t CO₂Above avg3h 3m→
Mar 20, 2026N721MCGulfstream GV·12.6t CO₂Above avg3h 32m→
Mar 20, 2026N461FXGulfstream GIV·12.3t CO₂Above avg2h 57m→
Mar 20, 2026N320QSCessna Citation Sovereign·6.2t CO₂Below avg2h 48m→
Showing 10 of 45 flights