Airline Ranking · As of July 16, 2026
The Global Airline Sustainability Ranking
Airlines talk constantly about sustainability. Far fewer make it visible, measurable, and operational. This ranking separates the airlines actually changing how they fly from the ones still treating sustainability as marketing.
This version benchmarks 32 major airlines and airline groups across North America, Europe, Asia-Pacific, South America, Africa, and the Middle East. It rewards carriers that buy and use sustainable aviation fuel, run real contrail-avoidance programs, give customers practical ways to participate, and publish enough evidence for outsiders to judge progress.
The core message is simple: if an airline wants to be seen as a real sustainability leader in 2026, contrail avoidance should be part of the operating model, not a footnote in a climate report.
01 What the ranking found
Every airline still has points on the table
These carriers are scored against what is already operationally available in 2026, not against a 2050 pledge. Judged that way, the best airline in the world reaches 78.5 out of 100. Of the 32 carriers benchmarked, 24 fall below 60 and 13 score below half marks.
0
carriers score above 80
78.5
the highest score in the world
13 of 32
score below half marks
reaches this
None of the missing points require a breakthrough. They are won by routing around contrail-forming air, reporting SAF as a share of fuel burn, putting participation in the booking path, and publishing the results. For every one of those, some carrier in the table below is already doing it.
All 32 carriers, scored out of 100
Filter by region or search for a carrier. Select any airline to see why it lands where it does.
- 5leading the field
- 3progressing
- 11behind
- 13below half marks
Strong SAF leadership plus visible non-CO₂ and contrail work.
The strongest quantified contrail-avoidance evidence in the set.
Strong reporting, strong SAF, and serious contrail engagement.
Best overall mix of SAF scale, customer participation, and disclosure.
One of the clearest real-world contrail-avoidance programs.
Excellent customer participation and checkout giving, but weaker contrail execution than the leaders.
Strong group-level climate structure and customer-facing tools.
Strong SAF, governance, and giving, but limited public contrail execution.
One of the best customer-facing SAF models in the market.
Strong customer and corporate SAF participation programs.
Strong booking-path SAF participation and good disclosure quality.
Strong procurement and good donation infrastructure, but weaker direct customer tools.
Solid SAF and industry-building role, but limited contrail progress.
Strong operational platform, but weaker customer and contrail differentiation.
Strong customer-facing sustainability tools relative to its size.
Credible SAF participation tools and long reporting history.
Tangible customer contribution model, but smaller SAF and contrail scale.
Strong structure and SAF intent, but limited customer and contrail visibility.
Good climate architecture, but fewer standout public features.
Strong community impact, but weak current contrail and SAF depth.
Credible reporting base, but thin public evidence in the top-weighted areas.
Strong circularity story, but early on SAF and contrails.
Broad sustainability structure, but limited public standout execution.
Efficient operations, but very weak customer participation and contrail depth.
Efficient short-haul base and charity activity, but thin on SAF and contrails.
Visible climate messaging, but limited disclosed fuel decarbonization progress.
Decent governance and fleet profile, but thin customer and contrail evidence.
Strong fleet story, but weak customer-facing climate tools and limited contrails evidence.
Better disclosure momentum than many peers, but still early on core climate levers.
Visible intent, but thin execution evidence in the highest-weighted areas.
Efficient baseline, but limited disclosed SAF, contrails, and customer participation.
Important carrier, but public evidence is still too broad and lightly quantified.
If this is your airline
We can tell you which points are cheapest to win
Every score above breaks down into eight decision areas, and the gaps are specific. Two of them, 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.
Corrections are welcome too. If we have missed a published program, send it and we will re-score and note the change.
02 Why the top looks different
This ranking rewards near-term action, not just brand familiarity
- American rises to the top tier on quantified contrail results.
- TUI jumps into the top five on the strength of its contrail program.
- British Airways beats many larger peers because its customer-participation tools are unusually tangible.
- Airlines with strong climate branding but thin contrail execution fall back.
03 What lower-ranked airlines should copy
The fastest path upward is not a moonshot
It is copying what the leaders already do. The most important shift: contrail avoidance should now be treated as table stakes.
04 How the ranking is done
Eight decision areas, each with an evidence multiplier
Each airline is scored out of 100 points across eight core decision areas. Each area receives a base grade from 0 to 5 and an evidence multiplier based on the quality of public disclosure.
Long-run fuel decarbonization remains one of the biggest aviation levers.
Near-term non-CO₂ warming can be large enough to merit equal weight with SAF.
Fleet renewal and operating efficiency still matter even if they are not enough on their own.
Whether the airline publishes enough current, decision-useful evidence to support its claims.
This captures booking-path giving, SAF participation, and other direct customer action.
Ground equipment, waste, and circularity are supporting but still relevant operational levers.
Corporate philanthropy and community support show whether the airline funds real external benefit.
Policy and sector collaboration matter because aviation decarbonization is not a purely internal problem.
Why this is worth 25 points
A contrail is a cloud an aircraft makes on purpose
In cold, humid air, engine exhaust freezes into a thin ice cloud. Sunlight passes down through it, but heat radiating up from the earth is caught and returned. By day the cloud both reflects and traps; at night it only traps. On balance, it warms.
The difference from CO₂ is what makes this urgent and fixable. Carbon lingers for centuries. A contrail warms for hours and then it is gone. Only a small share of flights pass through air humid enough to make the long-lived ones, and those flights can be routed a little higher or lower to miss it.
It is the rare climate lever an airline can pull this year, with the aircraft it already owns.
Base grades
- 0no credible public evidence
- 1weak or symbolic action
- 2limited action or generic commitments
- 3meaningful program in place
- 4strong program with multiple tangible actions
- 5best-in-class, measurable, and externally credible
Evidence multipliers
- A1.00Current quantified disclosure or clearly documented live program
- B0.90Good disclosure with small limits
- C0.80Older-cycle, group-level, proxy, or incomplete quantified evidence
- D0.65Fragmented or partial proxy evidence
- E0.35No credible public evidence; floor only
A worked example
How one area turns into points
All eight areas are scored the same way, in three steps. Here is contrail avoidance for an airline that runs a genuine program and publishes most of the detail.
- 01
Start with what the area is worth
25Contrail avoidance and non-CO₂ action carries 25 of the 100 points, the most of any area, alongside SAF.
on the table - 02
Grade what the airline actually does, 0 to 5
20This airline rates a 4: a strong program with multiple tangible actions. That keeps 4 of every 5 points available here.
after grading - 03
Scale that by how well the work is evidenced
18Evidence here rates a B — good disclosure with small limits — worth ×0.90. Thinner proof cuts deeper: an airline with no credible evidence keeps barely a third.
area score
Do that for all eight areas and add the results together. What is left is the carrier’s score out of 100.
The same thing in one line: area score = weight × (base grade ÷ 5) × evidence multiplier. The effect is that a strong program with thin proof never outscores a strong program that shows its work.
One caveat, since we ask airlines for the same candour: grades are recorded to the nearest half point, so that line is the model rather than an exact reconstruction. Where the two disagree slightly, the published area score is the authoritative figure.
The transparency penalty
Subtract 2 points for each fully missing pillar after the first two; cap at 10 points.
No airline currently triggered the penalty in the published worldwide airline version. Every published total equals the sum of the 8 pillar scores. In other words, no carrier in this edition was penalised for silence — every total above is simply the sum of its eight areas.
What this measures
This ranking scores what airlines disclose. A grade of 0 means no credible public evidence, not proof that nothing is happening. A carrier working quietly will place below a carrier doing the same work and publishing it. That is deliberate: outsiders can only judge what they can check. A low score is a prompt to publish, not a verdict on intent.
Which means we owe you the same. Every score cites the airline document it came from, and all 62 are listed in one place.
See every sourceCorrections
This is the first edition, benchmarked as of July 16, 2026. If you believe a score is wrong, send us the evidence (a public document, a dated program page, or quantified disclosure) and we will review it and record any change with the date it was made.
Submit evidence05 The standard this ranking sets
The next standard is already clear
Airlines do not need another decade of vague promises. Serious airlines should do four things, and the laggards should expect pressure until those four become normal.
- Use more SAF, and report it as a share of total fuel use.
- Use contrail avoidance on eligible flights.
- Put sustainability participation or direct giving in the booking flow.
- Publish the numbers so customers, investors, and regulators can judge results.