Airline Ranking · As of July 16, 2026

IAG

Ranked #7 of 32 carriers on what is already operationally available in 2026, not on a 2050 pledge.

Score out of 100

65.7

Progressing · rank 7 of 32 · Europe

Why IAG lands here

Strong group-level climate structure and customer-facing tools.

0best in the world: 78.5100

That is 12.8 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 IAG 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

34.3 of the 100 points are still on the table for IAG. The three largest sit here:

  • 21.2

    Contrail avoidance and non-CO₂ action

    3.8 of 25 earned

  • 4.0

    SAF deployment and market-building

    21.0 of 25 earned

  • 2.7

    Ground operations, waste, and circularity

    3.3 of 6 earned

  • SAF deployment and market-building

    SAF

    21.0 / 25

    rough grade 4.5 of 5Bevidence ×0.904.0 points still available

    The airline shows real SAF activity through use, procurement, or market-building rather than long-dated ambition alone.

  • Contrail avoidance and non-CO₂ action

    Contrails

    3.8 / 25

    rough grade 1 of 5Cevidence ×0.8021.2 points still available

    The group does not show the same depth of standalone contrail execution as the strongest leaders in this revision.

  • Fleet efficiency and operational decarbonization

    Ops

    9.6 / 12

    rough grade 4 of 5Aevidence ×1.002.4 points still available

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

  • Climate governance and transparency

    Governance

    9.3 / 10

    rough grade 4.5 of 5Aevidence ×1.000.7 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

    9.4 / 10

    rough grade 4.5 of 5Aevidence ×1.000.6 points still available

    IAG benefits from strong customer-facing activity, but some of the clearest participation tools sit at the British Airways brand level rather than uniformly across the full group.

  • Ground operations, waste, and circularity

    Ground

    3.3 / 6

    rough grade 3 of 5Bevidence ×0.902.7 points still available

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

  • Community and nonprofit investment

    Community

    4.2 / 6

    rough grade 3.5 of 5Aevidence ×1.001.8 points still available

    Community or nonprofit support is visible and quantified rather than symbolic.

  • Climate advocacy and sector collaboration

    Advocacy

    5.1 / 6

    rough grade 4.5 of 5Bevidence ×0.900.9 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 IAG overall is rated high.

How IAG compares

Either side in the table

British Airways is one place ahead at 68.5, and Delta Air Lines one place behind at 64.4.

Within Europe

Ranked 5 of 11 carriers scored in Europe, behind Air France-KLM at 78.5.

Who already leads the areas IAG is losing most

  • Contrail avoidance and non-CO₂ action

    American Airlines earns 25.0 of 25 here. IAG earns 3.8.

  • SAF deployment and market-building

    Air France-KLM earns 23.0 of 25 here. IAG earns 21.0.

  • Ground operations, waste, and circularity

    LATAM Airlines Group earns 4.2 of 6 here. IAG earns 3.3.

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

If you work at IAG

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.