Wizz Air sustainability score: 31/100
Wizz Air is a low-cost European airline headquartered in Budapest, operating 231 aircraft as of FY2025 and carrying 63.4 million passengers. Founded in 2003, it operates primarily point-to-point routes across Europe with a fleet weighted toward fuel-efficient GTF-engine aircraft.
More about Wizz Air
The airline is positioned as a price competitor in the budget segment.
Founded 2003Head office Budapest Ferenc Liszt International Airport, HungaryStaff ~7,300 (2023)Revenue ~€3.9B (FY2025)Website ↗
Wizz Air reports verified Scope 1/2 emissions and multi-category Scope 3 data, but absolute emissions are rising as the airline expands its fleet toward 500 aircraft by 2030. The 25% intensity-reduction target by 2030 is unvalidated, intensity-only, and showing stagnation. An upheld UK advertising ruling in November 2024 banned claims of being 'one of the greenest' as misleading.
Wizz Air scores 31/100 (Below expectations) on SINK's independent climate assessment, scored from public data only. Scores are free. Companies can never pay for anything about their own score. Last verified July 2026.
That places Wizz Air joint 658th of 934 companies scored, and 2nd of 23 in Airlines / Aviation.
What is Wizz Air doing well, and where does it fall short?
Strongest on Carbon Footprint: Operations and Transparency & Accountability (7/10, 6/10). Weakest on Emissions Trajectory and Energy Source (2/10, 3/10).
Where Wizz Air lost points
For each question that lost points, the evidence our public rubric looks for that we didn't find.
- Emissions from its own operations7/10Its own emissions aren't independently verified or tracked over several years.
- Emissions from its supply chain5/10Most of its supply-chain (Scope 3) emissions aren't measured.
- Whether its emissions are falling2/10No evidence its emissions are falling, not even from energy bills or mileage.
- How clean its energy is3/10No renewable energy tariff or major efficiency investment shown.
- Its effect on nature3/10No assessment of its effect on nature, and no basic environmental policy.
- How it uses materials and handles waste4/10No measurable waste or recycling targets reported publicly.
- Its effect on water4/10No measured water footprint with reduction targets.
- Its climate targets3/10No specific targets with dates.
- How openly it reports6/10No annual impact report, or no pay linked to climate targets.
- Its record on controversies5/10Points deducted for controversies or its business model. The finding is under question 10.
A score changes when the evidence does. We use new published evidence at the next rescore. Anyone can send us new evidence, free. How to send it.
How is Wizz Air's SINK score calculated?
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × ScaleHas Wizz Air's score changed?
Wizz Air's score has moved from 23 to 31 across 2 recorded reviews, up 8 points.
- 23 → 31+818 August 2026
Re-classified Aerospace[38] -> Airlines / Aviation[28]; score 33->31
- Scored 234 April 2026
Initial score at platform launch
What evidence is Wizz Air's score based on?
15 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.
40% of them were published by Wizz Air itself; the rest come from independent sources.
9 of 15 sources are independent of the company.
“The report was verified by independent third parties and highlights measurable progress”
“ClimatePartner's carbon accounting provided the foundation for setting this reference year”
“category 2 and 3 associated with jet fuel and energy related activities ... account for more than 88% of Scope 3 emissions”
“The total CO2 emissions for August were 566,493 metric tons, a 5.7% increase year on year”
“ambitious but achievable plan to grow its fleet to 500 aircraft by 2030, doubling the fleet between 2025 and the end of the decade”
“Wizz Air ... committed to align its decarbonization goals with the Science Based Target Initiative (SBTi) in 2021”
“In March 2025, Wizz Air presented its Net Zero Plan, 'Flying Towards Net Zero' to the Committee for approval”
“77% less land fill and 68% less water consumption, when compared to traditional leather seats' production”
“Waste generated ... 21.8Ktonnes, 2025”
“Monitor and reduce energy and water usage within our premises in order to minimize the consumption of natural resources”
“Wizz Air's value chain mapping is currently in progress as part of our preparations to report in line with the CSRD regulation”
“The ad must not appear again in the form investigated”
“Wizz Air and Ryanair - reached a landmark agreement with the EU Consumer Protection Cooperation Network to overhaul how they communicate their climate initiatives”
“Wizz Air oppose other key measures to decarbonize aviation, including an EU kerosene tax”
“Wizz Air used more than 27,000 tonnes of SAF during the financial year, as mandated by the EU under ReFuelEU Aviation requirements”
If you believe a source has been misread or a newer version exists, submit a challenge.
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How does Wizz Air compare with other airlines / aviation companies?
Where Wizz Air sits among airlines / aviation peers.
Among the 23 major airlines / aviation brands we've scored, Wizz Air sits 2nd of 23.
Who scores higher in Airlines / Aviation?
The one company in the sector scoring above Wizz Air.
See the full Airlines / Aviation table →Which companies moved this week, and why.
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