Delta Air Lines scores 23/100 (Significant gaps) on SINK's independent climate assessment — scored from public data only, no company payment can change a number. Last verified May 2026.
That places Delta Air Lines joint 737th of 809 companies scored, and 9th of 9 in Aerospace.
Delta reports verified emissions but absolute totals are rising sharply—60.6Mt in 2024 versus 48.6Mt baseline, negating intensity gains. Jet fuel dominates at 90% of footprint with minimal renewable energy penetration. A greenwashing lawsuit and weak climate lobbying alignment reveal a company talking sustainability while opposing meaningful regulations.
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SINK = (0.3 × Base + 0.7 × Performance) × ScaleStrongest on Carbon Footprint — Operations and Transparency & Accountability (7/10, 7/10). Weakest on Nature & Biodiversity Impact and Emissions Trajectory (1/10, 1/10).
15 sources used in this assessment. All publicly available. Each row shows which rubric questions it informed.
If you believe a source has been misread or a newer version exists, submit a challenge.
Delta Air Lines sits at the bottom of the aerospace pack.
Among the 9 major aerospace brands we've scored, Delta Air Lines sits 9th of 9.
Score history begins 4 April 2026.
As Delta Air Lines's score updates, the trajectory will appear here.
This score is not currently being contested.
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Delta Air Lines is a major US carrier operating scheduled passenger and cargo flights globally. Founded in 1924 and headquartered in Atlanta, it is one of the world's largest airlines by revenue (FY2024: $61.6B) and fleet size. Aviation's carbon intensity and scale make decarbonization a sector-defining challenge.
Major US carrier with similar jet-fuel dependency and emissions trajectory challenges in aviation sector.
View breakdown →Large-scale airline peer; comparable net-zero commitments and intensity-based sustainability targets.
View breakdown →Low-cost carrier with minimal sustainability disclosure and weak climate accountability standards.
View breakdown →European budget airline facing similar fuel-based emissions dominance and regulatory pressure on carbon accountability.
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