CarbonSkyIndex
BFI
FNR

Seattle → Funter Bay

2h 2m avg · 905 miles · 786nm · Recently active route — first recorded March 2026

13.5t CO₂ · Last 30 DaysTypical

Last updated March 31st 2026 at 9:35 AM UTC

Pro
Soon
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
13.5tons
Flights
5flights
Avg CO₂/Flight
3.4tons
CO₂/nm
0.0043t CO₂/nm
Fuel Burned
2Kgallons
13.6 tons CO₂ in selected period
Route activity detected
5 flights in the last 30 days

Route Patterns

Route activity broadly consistent with prior period — averaging 3.4t CO₂ per flight

13.5t
Total CO₂
3.4t
Avg CO₂/flight
4
Flights
Operator Profile
Charter
50%2 flights7.3t
Owner
50%2 flights6.2t

Mixed charter and owner-operated activity

Top Aircraft Models
Bombardier Learjet 4513.5t CO₂
4 flights · avg 3.4t/flight · 100%
📍International route·medium-haul route · 786nm

Spikes

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

CO₂ Above Baseline

7t

Signals Detected

2

Highest Severity

Medium

Emissions
Medium
New6 Mar 2026
Emissions spike on 6 Mar 2026 — 4.0t CO₂ vs route daily average of 0.5t (779% above)
4.0t CO₂ on 6 Mar 2026 — 779% above route average
Activity
Medium
Historical6 Mar – 21 Mar 2026
15-day gap in route activity ending 21 Mar 2026 — resumed with N254AL
Resumption flight: 3.1t CO₂

Aircraft Flying This Route

Aircraft Flying This Route
N253ALCharter·Bombardier Learjet 45
7.3t CO₂ · avg 3.6t/flight · Last seen 28 Mar 2026
N254AL·Bombardier Learjet 45
6.2t CO₂ · avg 3.1t/flight · Last seen 28 Mar 2026

All Recorded Flights on This Route

4 total flights recorded

Showing most recent flights — not filtered by viewing period

Mar 28, 2026N254ALBombardier Learjet 45·3.2t CO₂Typical1h 56m→
Mar 28, 2026N253ALBombardier Learjet 45·3.3t CO₂Typical1h 60m→
Mar 21, 2026N254ALBombardier Learjet 45·3.1t CO₂Typical1h 52m→
Mar 6, 2026N253ALBombardier Learjet 45·4.0t CO₂Typical2h 21m→