IATA CO2 Connect Calculator

IATA has developed a calculator that enables passengers to easily calculate the CO₂ footprint of their flights:

1. Search and select the departure and arrival airports
2. Choose the aircraft type (if unknown, the most common one for the route will be automatically selected).
3. Press calculate.

CO₂ emissions are calculated by: 

1. Calculating the total CO₂ emissions for a given flight
2. Distribution of CO₂ between passenger and cargo payload based on weight
3. Allocation of CO₂ between passengers, considering expected occupancy and cabin classes.

The calculator uses actual fuel consumption data, covering 74 aircraft types which represents ~98% of the active global passenger fleet and traffic data from 881 aircraft operators representing ~93% of global air travel.  Additional information on the methodology is provided by IATA.

Disclaimer: CO₂ emissions calculations are aligned with the IATA Recommended Practice Per-Passenger CO2 Calculation Methodology. Actual CO₂ emissions on the day of travel may have variations.