Airports / Transport Infrastructure

Gatwick Airport sustainability score: 39/100

Making progress starts at 46. The highest score on SINK is 71.

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About Gatwick Airport

Gatwick Airport Limited owns and operates London Gatwick, the UK's second-largest airport by passenger numbers, which handled 42.8 million passengers in 2025. It has been majority-owned by VINCI Airports since 2019 and serves leisure and business travel in South East England.

More about Gatwick Airport

Revenue in 2025 was £1,132.1M, with about 2,800 staff.

Founded 1986Head office Gatwick, West Sussex, United KingdomStaff ~2,779Revenue £1,132.1M (FY2025)Website ↗

Read Gatwick Airport's own report ↗

Our verdict

Gatwick cut its Scope 1 emissions 34% since 2021, but its total reported footprint rose 1.4% in 2025 as reported aircraft emissions climbed. The Northern Runway expansion was approved despite the examining authority's warning that its emissions could materially affect UK carbon targets. Its net-zero claims rest partly on offsets and on renewable electricity certificates.

Gatwick Airport scores 39/100 (Below expectations) on SINK's independent climate assessment, scored from public data only. Scores are free. Nobody can pay to change a score, speed it up or hide it. Last verified October 2026.

That places Gatwick Airport joint 451st of 1,023 companies scored, and 2nd of 2 in Airports / Transport Infrastructure.

The ten questions

What is Gatwick Airport doing well, and where does it fall short?

Strongest on Carbon Footprint: Operations and Carbon Footprint: Supply Chain (8/10, 6/10). Weakest on Emissions Trajectory and Water Impact (4/10, 4/10).

What's missing

Where Gatwick Airport lost points

For each question that lost points, the evidence our public rubric looks for that we didn't find.

What would raise this score

  • Whether its emissions are fallingShow a year-on-year fall in its total emissions.
  • Its effect on waterMeasure its water footprint and set reduction targets.
  • Its climate targetsMake its targets science-based, or commit to the Science Based Targets initiative.

Every question that lost points

  • Emissions from its own operations8/10No verified figures published with their method and a falling trend.
  • Emissions from its supply chain6/10No full value-chain map or supplier engagement programme.
  • Whether its emissions are falling4/10No evidence of a year-on-year fall in its total emissions.
  • How clean its energy is6/10Less than 90% of its energy shown to be renewable.
  • Its effect on nature5/10Its effect on nature isn't measured or independently verified.
  • How it uses materials and handles waste5/10No measurable waste or recycling targets reported publicly.
  • Its effect on water4/10No measured water footprint with reduction targets.
  • Its climate targets4/10Its targets aren't science-based or committed to the Science Based Targets initiative.
  • How openly it reports6/10No annual impact report, or no pay linked to climate targets.
  • Its record on controversies6/10Points 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.

The calculation

How is Gatwick Airport's SINK score calculated?

Same ten questions for every company. No private weighting.

SINK = (0.3 × Base + 0.7 × Performance) × Scale
Industry base impact
Airports / Transport Infrastructure sector ceiling.
32 / 100
Performance score
Sum of the ten questions, each scored 0 to 10.
54 / 100
Raw score
Weighted average before scale penalty.
(0.3 × 32) + (0.7 × 54) = 47.4
Scale penalty
Multiplier based on total emissions. Bigger polluters lose more.
× 0.82
Final score
Rounded. Below expectations.
39 / 100
How this score has moved

Has Gatwick Airport's score changed?

Gatwick Airport's score has been reviewed 2 times and currently stands where it started, at 39.

02550751003921 October 2026397 November 2026
  1. 39 → 397 November 2026

    Correction, 7 November 2026: removed a related-company note naming a customer, supplier or partner without a source. Score unchanged.

  2. Scored 3921 October 2026

    Initial public score 39 (publish-draft)

Where the evidence comes from

What evidence is Gatwick Airport's score based on?

14 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.

7% of them were published by Gatwick Airport itself; the rest come from independent sources.

Gatwick's printed Scope 3 table for 2025 appears to be misaligned, with figures shifted by a row. We score the figures as printed, except the landing and take-off figure, which doesn't match Gatwick's own per-passenger figure and so isn't used. If Gatwick publishes a corrected table, we'll re-score.

13 of 14 sources are independent of the company.

[1]SEC filing
Gatwick Airport Limited Financial Statements 31 December 2025

“Total gross location-based SCOPE 1 and 2 22,024 25,955”

2025
Q1Q2Q3Q10
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[2]Self-reported
Decade of Change 2025 Stage 8 Report

“Scope 1 (tCOe) 10,163 8,921 9,201 7,617 6,692”

2026
Q1Q2Q3Q4Q5Q6Q7Q8Q9
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[3]Independent source
London Gatwick Cuts Vehicle Scope 1 Emissions by 90% After Swapping Diesel for HVO

“All 300 diesel vehicles, 85% of London Gatwick’s fleet, are now powered by HVO”

2024
Q1Q4
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[4]Public record
Companies House Filing: Gatwick Airport Limited (01991018)

“Key to achieving this was our Stakeholder Partnership Plan which supports third parties on the campus to reduce emissions.”

Ongoing
Q2Q4Q6Q9
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[5]Independent source
Protecting Woodlands, Wetlands and Willows Under London Gatwick's Biodiversity Action Plan

“This has helped us to protect over 2,400 different species of plants, animals and fungi.”

2019
Q5
View →
[6]Independent source
From Airplanes to Reed Beds: Modern Airport Water Management with Ian Waghorn

“we use about 750,000 cubic meters of water a year”

2024
Q7
View →
[7]Public record
Environmental Statement Appendix 11.9.4: Water Quality De-Icer Impact Assessment

“Water Quality De-Icer Impact Assessment”

2025
Q7
View →
[8]Independent source
Gatwick Achieves Highest Carbon Emissions Certification

“London Gatwick in the UK has received a Level 4+ Transition certification from the Airport Carbon Accreditation (ACA) organisation”

2024
Q9
View →
[9]Public record
Peter Barclay v Secretary of State for Transport: High Court Press Summary

“The DCO authorises dual runway operations through altering the existing northern runway”

2026
Q3
View →
[10]Independent source
London Gatwick Progresses on Road to Net Zero

“This required the airport to offset its residual Scope 1 and 2 emissions, as well as emissions related to business travel.”

2023
Q8
View →
[11]Independent source
Gatwick Airport Pre-Buys Nature-Based Carbon Removals

“GAL stated that the carbon removed through these projects will offset emissions generated between 2030 and 2039.”

2024
Q8
View →
[12]
cornerstonebarristers.com

“contrary to policy, the increase in greenhouse gas emissions would be likely to result in a material impact on achieving carbon targets”

Q10
View →
[13]
localgovernmentlawyer.co.uk

“The SST took an irrational approach to the significance of GHG emissions and/or failed to give adequate reasons for her approach to that issue.”

Q10
View →
[14]
planetradio.co.uk

“Gatwick accused of deceiving residents over second runway plans”

Q10
View →

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

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    Gatwick Airport: SINK sustainability score 39.

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Gatwick Airport in context

How does Gatwick Airport compare with other airports / transport infrastructure companies?

Gatwick Airport sits at the bottom of the airports / transport infrastructure pack.

Among the 2 major airports / transport infrastructure brands we've scored, Gatwick Airport sits 2nd of 2.

2/2
Gatwick Airport's rank
40
Industry average
39
Industry low
41
Industry high
1Heathrow Airport
41
2Gatwick Airport
39
See all 2 in Airports / Transport Infrastructure →
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