TUI is a global tourism and travel group headquartered in Hanover, Germany, operating airlines, cruise ships, hotels, and tour packages across 180 destinations.
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TUI discloses emissions across most scopes but omits material Scope 3 categories, particularly customer travel. Airline targets are intensity-based, masking absolute emission growth risks. A Hamburg court found a TUI Cruises net-zero advertising claim misleading, and the Dutch Advertising Board separately upheld a complaint over TUI's 'Fair Friday' campaign. Trade association misalignment on climate policy compounds weak governance.
TUI scores 26/100 (Significant gaps) on SINK's independent climate assessment, scored from public data only. Fees pay for the review, never the result. Last verified July 2026.
That places TUI joint 710th of 847 companies scored, and joint 6th of 23 in Airlines / Aviation.
Where TUI sits among airlines / aviation peers.
Among the 23 major airlines / aviation brands we've scored, TUI is tied =6th of 23, with 1 other.
Its three lowest-scoring questions, and what the evidence didn't show.
FY2025 Scope 3 = 5.23 Mt CO₂e across 8 categories only.
The full reasoning is in the ten questions below.
FY2024 SAF use was 1,700 tonnes—approximately 0.1% of jet fuel consumption, well below EU ReFuelEU mandates and representing compliance aspiration only.
A score changes when the evidence does. We use new published evidence at the next rescore. Evidence that isn't public can count through an evidence review.
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Get in touch →Strongest on Carbon Footprint — Operations and Transparency & Accountability (7/10, 6/10). Weakest on Carbon Footprint — Supply Chain and Emissions Trajectory (3/10, 3/10).
The 3 companies in the sector scoring nearest above TUI.
Icelandair discloses carbon operations and waste data but reports absolute emissions rising 4.8% while promoting only intensity improvements.
See the breakdown →SAS reports Scope 1 emissions with limited assurance but no quantified Scope 3 inventory.
See the breakdown →Jet2's absolute emissions rose 20% in two years while intensity improved—a classic aviation greenwashing pattern.
See the breakdown →TUI's score has moved from 29 to 26 across 2 recorded reviews, down 3 points.
Re-classified Aerospace[38] -> Airlines / Aviation[28]; score 29->26
Initial score at platform launch
The formula and all 12 sources.
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × Scale12 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.
“We regard specific carbon emissions (in g CO2/rpk) from our aircraft fleet as the most relevant non-financial key performance indicator”
“In 2025, TUI reported Scope 2 greenhouse gas (GHG) emissions of 145,539 tCO₂e using the market-based method”
“TUI cooperates with suppliers in order to capture relevant information about their sustainability performance”
“achieving reductions versus our FY19 baseline of -7.8% (-0.9%pts improvement vs. FY25 target) in Airline”
“526 contrail avoidance flights were done in 2025”
“1,700 tons of Sustainable Aviation Fuel (SAF) were used by TUI airline in the financial year 2024”
“TUI's 2030 science-based targets for airline, cruises and hotels achieved validation from the Science Based Targets initiative (SBTi) in January 2023”
“We are committed to avoiding and reducing emissions rather than offsetting them”
“The targets are continually monitored by the management of the business areas, the Group Sustainability Team and the Sustainability Council”
“The Regional Court of Hamburg declared a TUI Cruises climate-related advertising statement to be misleading”
“TUI is a member of Airlines for Europe and TUIfly, a wholly owned subsidiary, is a member of the International Air Transport Association, both are actively and negatively engaged on EU climate policy”
“approximately 4 million water bottles were reduced between 2022 and 2024, which is equivalent to a reduction of 35%”
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TUI is a global tourism and travel group headquartered in Hanover, Germany, operating airlines, cruise ships, hotels, and tour packages across 180 destinations. The company serves approximately 27 million customers annually and is one of Europe's largest integrated travel operators, though heavily reliant on aviation and cruise—carbon-intensive sectors.
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