CarbonSkyIndex
SUS
IAD

St Louis → Washington

1h 56m avg · 710 miles · 617nm · Recently active route — first recorded March 2026

63.5t 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
63.5tons
Flights
8flights
Avg CO₂/Flight
4.0tons
CO₂/nm
0.0065t CO₂/nm
Fuel Burned
4Kgallons
66.4 tons CO₂ in selected period
Emissions spike detected
Emissions 186% above route average on 19 Mar

Route Patterns

Predominantly charter activity — 80% of flights on this route are charter-operated

63.5t
Total CO₂
4.0t
Avg CO₂/flight
16
Flights
Operator Profile
Charter
80%4 flights13.5t
Owner
20%1 flight1.4t

Charter/owner data available for 31% of flights (11 unclassified)

Top Aircraft Models
Bombardier Challenger 60018.7t CO₂
5 flights · avg 3.7t/flight · 29%
Bombardier Challenger 3009.2t CO₂
1 flight · avg 9.2t/flight · 14%
Gulfstream G6507.1t CO₂
1 flight · avg 7.1t/flight · 11%
Cessna Citation CJ27.0t CO₂
2 flights · avg 3.5t/flight · 11%
Gulfstream GIV5.9t CO₂
1 flight · avg 5.9t/flight · 9%
📍International route·medium-haul route · 617nm

Spikes

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

CO₂ Above Baseline

8t

Signals Detected

1

Highest Severity

Medium

Emissions
Medium
New8 Mar 2026
Emissions spike on 8 Mar 2026 — 10.0t CO₂ vs route daily average of 2.2t (365% above)
10.0t CO₂ on 8 Mar 2026 — 365% above route average

Aircraft Flying This Route

Aircraft Flying This Route
N305LXCharter·Bombardier Challenger 600
7.4t CO₂ · avg 3.7t/flight · Last seen 8 Mar 2026
N345XBCharter·Bombardier Challenger 600
4.4t CO₂ · avg 4.4t/flight · Last seen 4 Mar 2026
N187AACharter·Dassault Falcon 2000
3.0t CO₂ · avg 3.0t/flight · Last seen 1 Mar 2026
N393FXCharter·Embraer Phenom 300
1.6t CO₂ · avg 1.6t/flight · Last seen 7 Mar 2026
N522VX·Cirrus Vision Jet SF50
1.4t CO₂ · avg 1.4t/flight · Last seen 5 Mar 2026

All Recorded Flights on This Route

17 total flights recorded

Showing most recent flights — not filtered by viewing period

Mar 30, 2026N668FXGulfstream G650·7.1t CO₂Above avg1h 42m→
Mar 26, 2026N450WCGulfstream GIV·5.9t CO₂Above avg1h 28m→
Mar 23, 2026N650SKBombardier Challenger 600·3.2t CO₂Typical1h 25m→
Mar 23, 2026N831RWDassault Falcon 50·2.8t CO₂Below avg1h 27m→
Mar 19, 2026N410SKBombardier Challenger 600·3.7t CO₂Typical1h 38m→
Mar 19, 2026N946QSCessna Citation Latitude·2.9t CO₂Below avg1h 35m→
Mar 19, 2026N300RLBombardier Challenger 300·9.2t CO₂Above avg3h 45m→
Mar 17, 2026C-FASRCessna Citation CJ2·4.4t CO₂Typical3h 25m→
Mar 11, 2026N7202Cessna Citation Sovereign·4.0t CO₂Typical1h 54m→
Mar 9, 2026N687QSCessna Citation Latitude·2.8t CO₂Below avg1h 31m→
Showing 10 of 17 flights