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Day: March 17, 2026

The carbon footprint of a flight: what US routes actually emit

Bar chart showing estimated round-trip flight emissions by US route: NYC to Chicago 0.296 tons CO₂e, NYC to Los Angeles 0.608 tons CO₂e, NYC to Rome 0.775 tons CO₂e. Economy class, operational CO₂ only. Source: ICAO Carbon Emissions Calculator.

The carbon footprint of a flight in the US ranges from 0.296 tCO₂e for a short domestic round trip to 0.775 tCO₂e for a transatlantic round trip. All figures are economy class, ICAO-derived, and represent operational CO₂ only. Understanding what drives that range is more useful than a single average figure.   At a glance: […]