CarbonSkyIndex
HST
PHL

Homestead → Philadelphia

2h 36m avg · 1,038 miles · 902nm · Recently active route — first recorded March 2026

7.9t 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
7.9tons
Flights
2flights
Avg CO₂/Flight
4.0tons
CO₂/nm
0.0044t CO₂/nm
Fuel Burned
902gallons
7.9 tons CO₂ in selected period
Route activity detected
2 flights in the last 30 days

Route Patterns

Predominantly owner-operated — 100% of flights are owner-operated aircraft

7.9t
Total CO₂
4.0t
Avg CO₂/flight
2
Flights
Operator Profile
Charter
0%0 flights0.0t
Owner
100%2 flights7.9t
Top Aircraft Models
Cessna Citation CJ47.9t CO₂
2 flights · avg 4.0t/flight · 100%
📍International route·medium-haul route · 902nm

Spikes

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

CO₂ Above Baseline

7t

Signals Detected

2

Highest Severity

High

Emissions
Medium
New25 Mar 2026
Emissions spike on 25 Mar 2026 — 4.2t CO₂ vs route daily average of 2.0t (116% above)
4.2t CO₂ on 25 Mar 2026 — 116% above route average
Emissions
High
New25 Mar 2026
Single flight N999DB on 25 Mar 2026 — 4.2t CO₂, 54% of period total
Single flight: 4.2t CO₂ — 54% of period emissions

Aircraft Flying This Route

Aircraft Flying This Route
N999DB·Cessna Citation CJ4
4.2t CO₂ · avg 4.2t/flight · Last seen 25 Mar 2026
N271ES·Cessna Citation CJ4
3.7t CO₂ · avg 3.7t/flight · Last seen 28 Mar 2026

All Recorded Flights on This Route

2 total flights recorded

Showing most recent flights — not filtered by viewing period

Mar 28, 2026N271ESCessna Citation CJ4·3.7t CO₂2h 26m→
Mar 25, 2026N999DBCessna Citation CJ4·4.2t CO₂2h 47m→