Wizz Air sustainability score: 31/100

·Airlines / Aviation·Budapest Ferenc Liszt International Airport, Hungary·Founded 2003·Last verified 12 July 2026
31
out of 100
Below expectationsPending Review-2 since last reviewStrong evidence· 15 src

Wizz Air scores 31/100 (Below expectations) on SINK's independent climate assessment — scored from public data only, no company payment can change a number. Last verified July 2026.

That places Wizz Air joint 564th of 809 companies scored, and 2nd of 23 in Airlines / Aviation.

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.

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The calculation

How is Wizz Air's SINK score calculated?

Same ten questions for every company. No private weighting.

SINK = (0.3 × Base + 0.7 × Performance) × Scale
Industry base impact
Airlines / Aviation sector ceiling.
28 / 100
Performance score
Sum of the 10 rubric questions, scored 0–10 each.
42 / 100
Raw score
Weighted average before scale penalty.
(0.3 × 28) + (0.7 × 42) = 37.8
Scale penalty
Multiplier based on absolute emissions volume — physics-first.
× 0.82
Final score
Rounded. Below expectations.
31 / 100
The ten questions

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 Targets & Commitments (2/10, 3/10).

Where the evidence comes from

What evidence is Wizz Air's score based on?

15 sources used in this assessment. All publicly available. Each row shows which rubric questions it informed.

9 of 15 sources are third-party verified or public record.

[1]Self-reported
Wizz Air tops major airline lowest emissions ranking for 2024–2025 results and reports major highlights in environmental sustainability

“The report was verified by independent third parties and highlights measurable progress”

2025
Q1Q4Q9
View →
[2]Third-party verified
ClimatePartner verification for Wizz Air

“ClimatePartner's carbon accounting provided the foundation for setting this reference year”

2025
Q1
View →
[3]Self-reported
Greenhouse Gas Emissions Methodology and Additional Disclosures (2024)

“category 2 and 3 associated with jet fuel and energy related activities ... account for more than 88% of Scope 3 emissions”

2024
Q2
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[4]Self-reported
August 2025 traffic and CO2 emission statistics

“The total CO2 emissions for August were 566,493 metric tons, a 5.7% increase year on year”

2025
Q3
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[5]Self-reported
Annual Report and Accounts FY24

“ambitious but achievable plan to grow its fleet to 500 aircraft by 2030, doubling the fleet between 2025 and the end of the decade”

2024
Q3
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[6]Public record
Hydrogen and sustainable aviation fuel: Wizz Air's vision for the future

“Wizz Air ... committed to align its decarbonization goals with the Science Based Target Initiative (SBTi) in 2021”

2023
Q8
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[7]Public record
How is Wizz Air planning to decarbonise aviation

“In March 2025, Wizz Air presented its Net Zero Plan, 'Flying Towards Net Zero' to the Committee for approval”

2025
Q4Q9
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[8]Public record
Wizz Air's sustainability plans still on track to reduce emission intensity by 2030

“77% less land fill and 68% less water consumption, when compared to traditional leather seats' production”

2024
Q5Q6
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[9]Third-party verified
Illuminem company profile data for Wizz Air

“Waste generated ... 21.8Ktonnes, 2025”

Ongoing
Q6
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[10]Self-reported
Environmental Policy

“Monitor and reduce energy and water usage within our premises in order to minimize the consumption of natural resources”

Unknown
Q7
View →
[11]Self-reported
CDP 2024 submission

“Wizz Air's value chain mapping is currently in progress as part of our preparations to report in line with the CSRD regulation”

2024
Q2Q5
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[12]Public record
ASA ruling on Wizz Air misleading environmental advertising claim

“The ad must not appear again in the form investigated”

2024
Q10
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[13]Public record
Airline environmental claims: navigating the new era of regulatory scrutiny

“Wizz Air and Ryanair - reached a landmark agreement with the EU Consumer Protection Cooperation Network to overhaul how they communicate their climate initiatives”

2025
Q10
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[14]Third-party verified
InfluenceMap company profile: Wizz Air

“Wizz Air oppose other key measures to decarbonize aviation, including an EU kerosene tax”

2025
Q10
View →
[15]Public record
Wizz Air highlights record low emissions intensity in sustainability report

“Wizz Air used more than 27,000 tonnes of SAF during the financial year, as mandated by the EU under ReFuelEU Aviation requirements”

2025
Q4
View →

If you believe a source has been misread or a newer version exists, submit a challenge.

Wizz Air in context

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.

2/23
Wizz Air's rank
24
Industry average
18
Industry low
33
Industry high
How this score has moved

Has Wizz Air's score changed?

Wizz Air's score has moved from 23 to 31 across 2 recorded reviews — up 8 points.

0255075100234 April 20263118 August 2026
  1. 23 → 31+818 August 2026

    Re-classified Aerospace[38] -> Airlines / Aviation[28]; score 33->31

  2. Scored 234 April 2026

    Initial score at platform launch

What's being contested

Has Wizz Air's score been challenged?

This score is not currently being contested.

Every challenge is published. We'd rather be corrected than wrong — that's the whole point.

No challenges submitted yet. If you have evidence that contradicts this score, you can challenge any question above — cite a public source and we'll review it.

About Wizz Air

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. The airline is positioned as a price competitor in the budget segment.

Founded
2003
Headquarters
Budapest Ferenc Liszt International Airport, Hungary
Employees
~7,300 (2023)
Annual revenue
~€3.9B (FY2025)
Company website ↗
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