With airfares, route viability and destination access increasingly tied to the industry’s ability to scale cleaner fuels, October’s summit in the EU capital is as much a tourism story as an aviation one.
Europe (Tourism Reporter) — Every flight begins as a promise of somewhere else — a seat booked, a route opened, a destination brought within reach. But behind every journey lies an infrastructure whose future will increasingly depend on how aviation tackles its greatest environmental challenge.
That connection will come into sharp focus in Brussels on 13–14 October 2026, when the International Air Transport Association (IATA) holds the fourth edition of its World Sustainability Symposium. Aviation, energy, finance, technology, academia and government leaders will gather to confront the policy, investment and technology decisions standing between the industry and its 2050 net-zero target.
For tourism, the conversation matters enormously. Destinations dependent on long-haul arrivals, airlines building networks around leisure demand, and travellers whose holiday choices depend on affordable airfares will ultimately feel the consequences of decisions made in rooms like this. What happens in Brussels may shape the cost of reaching a destination, the routes that survive, and which places remain globally competitive for years to come.
Why Brussels, and Why Now
The choice of Brussels is no accident. IATA selected the EU capital because many of aviation’s most consequential sustainability policies are shaped there, placing the Symposium within direct reach of the officials responsible for rules that will ultimately affect the global industry.
Marie Owens Thomsen, IATA’s Senior Vice President Sustainability and Chief Economist, captured the challenge: “the challenge is constrained not by ambition but by the pace at which interdependent solutions can be developed and scaled.” Europe, she noted, has set ambitious decarbonisation objectives, but its policies do not always recognise the interdependencies required to deliver them.
That tension will be familiar to tourism operators: the distance between a headline target and the infrastructure, investment and policy coordination needed to achieve it.
Bringing the World Sustainability Symposium to Brussels, Owens Thomsen said, offers an opportunity to close that gap by bringing transport, energy, finance and policy professionals together to accelerate decarbonisation while protecting competitiveness and travellers. With energy security increasingly central to the aviation debate, the timing could hardly be more relevant.
Why Tourism Should Care About Energy Security
That final point matters to tourism more than it may initially appear.
Energy security has become increasingly intertwined with airfares. Recent fossil-fuel volatility has exposed how vulnerable airlines — and, ultimately, travellers and destinations — remain to global energy shocks. Even when a spike in conventional jet-fuel prices temporarily narrows the price differential with Sustainable Aviation Fuel (SAF), SAF prices can rise alongside the wider market, leaving airlines and passengers exposed to continued cost uncertainty.
For tourism, the implication is straightforward: the cost of reaching a destination is part of destination competitiveness.
A sustainability transition that reduces aviation’s exposure to volatile fossil-fuel markets could therefore have implications far beyond emissions. Greater energy resilience could make airfares and route economics more predictable — something national tourism boards, airlines, tour operators and hotel groups all need when planning campaigns, capacity and investment.
The Question Behind the Decarbonisation Debate
This is not a new concern for the travel industry, but it has become more urgent.
Destination marketing organisations can promote affordability and accessibility, but neither can be guaranteed when fuel costs and decarbonisation expenses remain subject to forces beyond their control.
That leaves tourism with a question increasingly embedded in the aviation sustainability debate:
Who ultimately pays for cleaner flying — and how will that cost be distributed across destinations, routes and travellers?
That is why Brussels matters to tourism. The decisions may be made in an aviation forum, but their consequences will be felt across the entire visitor economy.
The Agenda: Fuel, Markets and the Fine Print That Shapes Ticket Prices
The Symposium’s agenda centres on three themes, each with a direct implication for the future cost and competitiveness of air travel. The first is scaling the near-term “low-hanging fruit” of the energy transition — including HEFA Sustainable Aviation Fuel, Low Carbon Aviation Fuels and co-processing — technologies that can reduce emissions without requiring entirely new aircraft or airport infrastructure.
The second is policy: creating global, transparent and competitive markets for SAF and carbon credits. It may sound like regulatory fine print, but it matters commercially. The way governments design and harmonise SAF mandates can determine whether the cost passed on to passengers amounts to a modest ticket surcharge or something considerably larger.
The third theme looks further ahead — emerging technologies, aviation’s lesser-known non-CO₂ climate effects, and sustainability across the aircraft lifecycle.
For travellers, none of this is abstract.
SAF currently costs two to five times more than conventional jet fuel, while blending mandates being introduced across Europe, the UK and Singapore are expected to add costs to airfares. Singapore, for example, estimates that its SAF mandate could add around S$16 to a London-bound economy ticket when fully implemented.
Industry forecasts cited in 2026 have put potential fare increases from decarbonisation at anywhere between 8 and 20 per cent. The wide range itself illustrates the uncertainty surrounding the transition — and why the policy architecture being discussed in Brussels matters.
The Supply Problem
The underlying challenge is supply.
SAF still represents less than one per cent of global jet-fuel consumption, despite years of mandates and industry commitments. Even optimistic production trajectories suggest that reaching a 10 per cent global blend could take much of the coming decade.
That gap between ambition and availability is where tourism enters the equation.
If cleaner fuels remain scarce and expensive for longer than expected, the cost burden is likely to be felt most acutely on long-haul, discretionary and leisure routes — precisely the markets on which many tourism-dependent destinations rely.
A business traveller may absorb a higher fare differently from a family deciding whether an expensive long-haul holiday is still affordable.
That is why the Brussels agenda matters beyond aviation. The price of decarbonisation could ultimately influence where people fly, how often they travel and which destinations remain competitive.
Who Is in the Room, and What It Signals for Destination Access
The confirmed speaker list reads less like a conventional aviation trade event and more like a cross-section of the institutions shaping how destinations will be reached — and at what cost.
Roberto Alvo, CEO of LATAM Airlines Group, brings a Latin American perspective to a debate often dominated by European and North American voices — particularly relevant to tourism economies heavily dependent on long-haul connectivity.
From Europe’s regulatory side, Eddy Liégeois, Head of Unit for Aviation Policy at the European Commission’s DG MOVE, and European Parliament member Cynthia Ní Mhurchú represent institutions directly involved in shaping the EU’s aviation sustainability framework and its implications for route economics.
The presence of Leif Holmberg of the Green Climate Fund and Margarita Cabrera Botero of the World Bank Group’s Multilateral Investment Guarantee Agency adds another dimension: the role of climate and development finance in making SAF investment viable in markets that may otherwise struggle to attract capital.
That question has a clear tourism consequence. If cleaner-fuel infrastructure develops unevenly, some destinations could find themselves better positioned for future connectivity than others.
Airline and airport sustainability leadership is also represented by Jonathon Counsell of IAG — parent of British Airways, Iberia and Aer Lingus — and Denise Pronk, Head of Sustainability at Schiphol Airport, one of Europe’s major international gateways.
Their presence reinforces the bigger shift underway.
Decarbonisation is no longer simply a sustainability issue. It is becoming an operational and commercial question — one that will influence airline networks, airport capacity, route economics and, ultimately, the destinations travellers can afford to reach.
A Working Week, Not a Single Set-Piece Event
For the first time, the World Sustainability Symposium will run alongside Wings of Change Europe at the same Brussels venue, with WSS delegates receiving complimentary access to the follow-on event on 15 October. The format effectively turns the Symposium into a broader working week — moving from the technical questions of fuel, carbon markets and decarbonisation to the wider issues of competitiveness, connectivity and aviation’s economic future.
That combination is significant for tourism. It brings sustainability and commercial viability into the same conversation rather than treating them as competing priorities.
For an industry already under pressure to reconcile the environmental cost of flying with the economic value of visitor mobility, that matters.
There is a genuine concern that poorly calibrated decarbonisation costs could make discretionary air travel less affordable, placing pressure on regional airports, secondary destinations and mid-market tour operators whose business depends heavily on price-sensitive leisure travellers.
IATA’s stated ambition to accelerate decarbonisation while preserving the economic and social benefits of air connectivity therefore speaks directly to tourism’s stake in the debate.
The Brussels meetings are not simply about cleaner fuel.
They are about whether the transition to cleaner aviation can happen without making the world less connected.
What Tourism Stakeholders Should Watch For
For tourism boards, airline planners and travel industry observers, the Symposium deserves attention beyond aviation policy circles.
The key question is how quickly SAF production can scale — and whether policy can narrow its cost gap with conventional fuel. The answer will influence ticket prices on the routes most important to international tourism.
Equally important is whether emerging SAF and carbon markets become genuinely global and competitive, or fragmented by region. Uneven regulation could leave destinations served by airlines facing stricter mandates at a structural cost disadvantage — precisely the imbalance IATA’s push for harmonised markets seeks to avoid.
There is also a broader question of who gets to participate in the transition.
The presence of the Green Climate Fund and World Bank Group’s MIGA points to a growing recognition that aviation decarbonisation is also a financing and equity challenge. Tourism-dependent economies across Africa, Latin America, the Caribbean and Southeast Asia may not have the capital to develop cleaner aviation infrastructure at the same pace as wealthier markets.
Whether those destinations are brought into the transition — or face higher connectivity costs because they cannot keep pace — could ultimately shape how evenly the benefits and burdens of cleaner aviation are distributed across the global tourism map.
For tourism media, Brussels offers an early look at the aviation decisions that could determine how much it costs to reach a destination, which routes remain viable, and how competitive those destinations are in the decade ahead.
This article draws on IATA’s official press release announcing the fourth World Sustainability Symposium, published on 1 September 2026, alongside independently compiled industry reporting on Sustainable Aviation Fuel pricing and its projected impact on airfares.
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