CarbonSkyIndex
BIL
MSO

Billings → Missoula

0h 38m avg · 275 miles · 239nm · Recently active route — first recorded March 2026

1.4t 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
1.4tons
Flights
4flights
Avg CO₂/Flight
0.6tons
CO₂/nm
0.0025t CO₂/nm
Fuel Burned
441gallons
1.9 tons CO₂ in selected period
Route activity detected
4 flights in the last 30 days

Route Patterns

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

1.4t
Total CO₂
0.7t
Avg CO₂/flight
2
Flights
Operator Profile
Charter
0%0 flights0.0t
Owner
100%2 flights1.4t
Top Aircraft Models
Cessna Citation CJ30.7t CO₂
1 flight · avg 0.7t/flight · 53%
Bombardier Learjet 450.6t CO₂
1 flight · avg 0.6t/flight · 47%
📍International route·short-haul route · 239nm

Spikes

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

CO₂ Above Baseline

1t

Signals Detected

2

Highest Severity

High

Emissions
High
New18 Mar 2026
Emissions spike on 18 Mar 2026 — 0.7t CO₂ vs route daily average of 0.2t (347% above)
0.7t CO₂ on 18 Mar 2026 — 347% above route average
Emissions
High
New18 Mar 2026
Single flight N509WC on 18 Mar 2026 — 0.7t CO₂, 53% of period total
Single flight: 0.7t CO₂ — 53% of period emissions

Aircraft Flying This Route

Aircraft Flying This Route
N509WC·Cessna Citation CJ3
0.7t CO₂ · avg 0.7t/flight · Last seen 18 Mar 2026
N406EJCharter·Cessna Citation V Ultra
0.6t CO₂ · avg 0.6t/flight · Last seen 1 Mar 2026
N917BD·Bombardier Learjet 45
0.6t CO₂ · avg 0.6t/flight · Last seen 23 Mar 2026

All Recorded Flights on This Route

3 total flights recorded

Showing most recent flights — not filtered by viewing period

Mar 23, 2026N917BDBombardier Learjet 45·0.6t CO₂Typical37m→
Mar 18, 2026N509WCCessna Citation CJ3·0.7t CO₂Typical42m→
Mar 1, 2026N406EJCessna Citation V Ultra·0.6t CO₂Typical35m→