The State of Sustainable Aviation Facts, Trends, and Leaders
July 2026
% Increase in Total CO2 Emissions
Increasing at 6% per year in the past two years
915 MT
(2019)
1,000 MT
(2025)
8.5
% Reduction in Emission Intensity
Average carbon-intensity (CO2/RPK) fell below 2019 levels for the first time in 2024
Reducing by 1.5% per year in the past two years
89 gCO2/km
(2019)
87 gCO2/km
(2025)
2.5
% Increased Carbon Efficiency of LCCs over Other Airlines
LCCs
FSCs
LCCs have reduced their average CO2/RPK by 7% since 2019, however the rate of improvement is slowing
In 2025, CO2/RPK for FSCs fell below 2019 levels for the first time
20
gCO2 per km for Most Carbon Efficient Airline – Wizz Air
Industry average, 87 gCO2/km
Wizz Air has a passenger carbon emission intensity of 50.0 gCO2/RPK compared to the industry average of 87 gCO2/km.
>40% emission reduction compared to industry average
50
% of Fuel Used in 2025 was SAF
0.7
75% of all SAF was consumed by European airlines, 15% North America and 8% APAC
Only 2% of SAF was used in Middle East, South America and Africa combined
90% consumed by FSC airlines
90% consumed by Alliance airlines
% of SAF Use by British Airways
4.5
KLM, British Airlines and SAS approaching 5% SAF
British Airways SAF use in 2025 was 227,000T, 4.5% of its total fuel use
Cathay Pacific was the APAC airline with the most SAF used in 2025 (36,000T)
% Higher Emission Intensity of Alliances
The combined emission intensity of the three main alliances 10% higher than non-alliance airlines
3x uptake of SAF by alliances compared to non-aligned airlines, oneworld leading with 1.2% SAF
10
Industry average, 87 gCO2/km
$ per Tonne CO2 Emission�“Breakeven Carbon Price”
$91/T CO2 is the carbon price that would consume 100% of the collective industry operating profit if levied on all carbon emissions (“Breakeven Carbon Price”)
Cost of SAF is approximately $500 per T CO2 removed
91
Breakeven Carbon Price $91/T
Focus on Emissions from 30 Largest Airports
75 g CO2 per ASK is the average for top 30 airports
Singapore Changi has the highest CO2/ASK at 82 g CO2/km
Dubai has the highest total CO2 emissions at 20 million T
The State of Sustainable Aviation Facts, Trends, and Leaders
July 2026
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