CarbonSkyIndex
JFK
MDW

New York → Chicago

1h 43m avg · 729 miles · 633nm · Recently active route — first recorded March 2026

7.8t 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
7.8tons
Flights
1flights
Avg CO₂/Flight
4.5tons
CO₂/nm
0.0071t CO₂/nm
Fuel Burned
518gallons
7.8 tons CO₂ in selected period
Route activity detected
1 flights in the last 30 days

Route Patterns

Predominantly charter activity — 100% of flights on this route are charter-operated

7.8t
Total CO₂
3.9t
Avg CO₂/flight
2
Flights
Operator Profile
Charter
100%2 flights7.8t
Owner
0%0 flights0.0t
Top Aircraft Models
Bombardier Challenger 3007.8t CO₂
2 flights · avg 3.9t/flight · 100%
📍US Northeast → US Central·medium-haul route · 633nm

Spikes

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

CO₂ Above Baseline

9t

Signals Detected

2

Highest Severity

High

Emissions
High
New20 Mar 2026
Emissions spike on 20 Mar 2026 — 4.5t CO₂ vs route daily average of 0.5t (900% above)
4.5t CO₂ on 20 Mar 2026 — 900% above route average
Emissions
High
New20 Mar 2026
Single flight N251FT on 20 Mar 2026 — 4.5t CO₂, 57% of period total
Single flight: 4.5t CO₂ — 57% of period emissions

Aircraft Flying This Route

Aircraft Flying This Route
N251FTCharter·Bombardier Challenger 300
4.5t CO₂ · avg 4.5t/flight · Last seen 20 Mar 2026
N717ASCharter·Bombardier Challenger 300
3.3t CO₂ · avg 3.3t/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, 2026N717ASBombardier Challenger 300·3.3t CO₂1h 30m→
Mar 20, 2026N251FTBombardier Challenger 300·4.5t CO₂1h 57m→