Travel and time
Flight Carbon Footprint Calculator
Free, private and runs in your browser. Estimates are educational, so check official sources before you act.
Quick answer
How much CO2 does my flight emit?
Roughly 90g CO2 per passenger per km in economy. Short flight YUL-Toronto ≈ 0.05 tonnes. YUL-Paris ≈ 0.6 tonnes. YUL-Tokyo ≈ 1.0 tonnes.
🌳 Flight Carbon Footprint
Per passenger per flight, including aviation radiative forcing.
Reviewed by: Montreal Tips editorial team · Last updated: May 13, 2026
Note: Estimates only — verify with official sources before booking.