Airline Ranking · As of July 16, 2026

Delta Air Lines

Ranked #8 of 32 carriers on what is already operationally available in 2026, not on a 2050 pledge.

Score out of 100

64.4

Progressing · rank 8 of 32 · North America

Why Delta Air Lines lands here

Strong SAF, governance, and giving, but limited public contrail execution.

0best in the world: 78.5100

That is 14.1 points behind the best-scoring carrier in the world, which itself only reaches 78.5. No carrier reaches 80, and 13 of 32 score below half marks.

What this score is built from

Eight decision areas, weighted by what moves emissions now

Each area is graded against what Delta Air Lines publishes, then scaled by how well that work is evidenced. Contrail avoidance carries the same weight as sustainable aviation fuel, because both are available today.

Where the points are

35.6 of the 100 points are still on the table for Delta Air Lines. The three largest sit here:

  • 21.2

    Contrail avoidance and non-CO₂ action

    3.8 of 25 earned

  • 6.3

    Customer participation, checkout donation, and sustainability access

    3.7 of 10 earned

  • 3.0

    SAF deployment and market-building

    22.0 of 25 earned

  • SAF deployment and market-building

    SAF

    22.0 / 25

    rough grade 4.5 of 5Aevidence ×1.003.0 points still available

    Delta's SAF and governance work remain strong, but the absence of visible contrail execution now costs it heavily in the global ordering.

  • Contrail avoidance and non-CO₂ action

    Contrails

    3.8 / 25

    rough grade 1 of 5Cevidence ×0.8021.2 points still available

    Public contrail-avoidance action is thin or absent, which now carries a large scoring cost.

  • Fleet efficiency and operational decarbonization

    Ops

    10.2 / 12

    rough grade 4.5 of 5Bevidence ×0.901.8 points still available

    Fleet renewal and operating-efficiency work are visible and material.

  • Climate governance and transparency

    Governance

    9.7 / 10

    rough grade 5 of 5Aevidence ×1.000.3 points still available

    Public reporting is strong enough to compare targets, governance structure, and climate claims across reporting cycles.

  • Customer participation, checkout donation, and sustainability access

    Customer

    3.7 / 10

    rough grade 2 of 5Bevidence ×0.906.3 points still available

    Everyday customer-facing sustainability participation is thinner than at the best checkout or booking-path peers.

  • Ground operations, waste, and circularity

    Ground

    3.9 / 6

    rough grade 5 of 5Devidence ×0.652.1 points still available

    There is some evidence of ground or waste action, but the public detail remains limited.

  • Community and nonprofit investment

    Community

    5.7 / 6

    rough grade 5 of 5Aevidence ×1.000.3 points still available

    Delta remains one of the strongest carriers on disclosed charitable and community giving.

  • Climate advocacy and sector collaboration

    Advocacy

    5.4 / 6

    rough grade 4.5 of 5Aevidence ×1.000.6 points still available

    The airline is visibly engaged in sector collaboration, policy work, or broader climate signaling beyond internal operations.

Evidence codes

  • A×1.00Current quantified disclosure or clearly documented live program.
  • B×0.90Good disclosure with small limits.
  • C×0.80Older-cycle, group-level, proxy, or incomplete quantified evidence.
  • D×0.65Fragmented or partial proxy evidence.
  • E×0.35No credible public evidence; floor only.

Grades are recorded to the nearest half point, so the published pillar score is the authoritative figure and the grade is a rounded description of it. Evidence quality for Delta Air Lines overall is rated high.

How Delta Air Lines compares

Either side in the table

IAG is one place ahead at 65.7, and Alaska Air Group one place behind at 59.6.

Within North America

Ranked 3 of 7 carriers scored in North America, behind American Airlines at 78.5.

Who already leads the areas Delta Air Lines is losing most

  • Contrail avoidance and non-CO₂ action

    American Airlines earns 25.0 of 25 here. Delta Air Lines earns 3.8.

  • Customer participation, checkout donation, and sustainability access

    IAG earns 9.4 of 10 here. Delta Air Lines earns 3.7.

  • SAF deployment and market-building

    Air France-KLM earns 23.0 of 25 here. Delta Air Lines earns 22.0.

The full methodology, with a worked example →Every source behind the ranking →

If you work at Delta Air Lines

We can tell you which points are cheapest to win

Two of the eight areas, booking-path participation and published uptake, are the ones our own real-money research speaks to directly: a redesigned donation step roughly doubled giving across three carriers, with no cost in brand favorability or booking intent.

Ask for your breakdownSee all 32 carriers

Think we have this wrong? If we have missed a published program, send it over and we will re-score and note the change.