The moment when “sustainable travel” stops being a niche preference and becomes a mainstream expectation is useful to identify precisely, because it changes the competitive dynamics for everyone in the hospitality and transport industry.

That moment, by most available data, was somewhere around 2024-2025. A majority of travelers now describe sustainability as an important or very important factor in their travel decisions. That’s a different market from the one that existed five years ago.

What the data actually shows

Booking.com’s annual sustainable travel surveys have tracked this shift for several years. The key finding across the most recent waves: stated preference for sustainable travel has reached majority status, but the gap between stated preference and actual decision-making remains significant.

Travelers say they want sustainable options. They often choose the cheaper flight. They say they’d pay more for an eco-certified hotel. In practice, the premium they’ll actually pay is often lower than their stated willingness implies.

This preference-behavior gap is not unique to travel — it exists across sustainability categories. But it has a specific implication for hospitality brands: don’t price your sustainability credentials at what consumers say they’re worth. Price them at what the data shows they actually pay.

What Accor is doing

Accor is the most interesting case study in sustainable hospitality at scale, partly because its portfolio is so diverse — from Ibis budget properties to Fairmont luxury resorts — and sustainability requirements differ dramatically across these segments.

The budget segment faces a different sustainability challenge than luxury. At Ibis, reducing single-use plastics, implementing energy management systems, and achieving carbon certifications must all be done without significantly impacting the price point. At Fairmont, sustainability is a positioning premium — guests at a $500/night resort expect sustainability to be embedded, and will pay for it.

Accor has been systematically addressing both ends: internal carbon targets that apply across the portfolio, sourcing commitments for food and amenities that favor local suppliers, and guest-facing tools that make the environmental choices visible. The approach is uneven across geographies but directionally consistent.

The transport dimension

Hospitality is downstream of transport, and sustainable travel ultimately requires sustainable ways to reach the destination.

The European rail network has expanded but not fast enough to offer train alternatives to popular short-haul flights at comparable convenience. Paris to Amsterdam by Thalys is well-established; Paris to Rome by rail requires multiple connections and most of a day. Until rail speed and convenience genuinely compete with flying for most European routes, the flight is the default.

Electric vehicle road trips are more viable than they were three years ago, particularly in Western Europe and parts of North America where charging infrastructure has reached reasonable density. The EV road trip is no longer an adventure for the committed — it’s a reasonable choice for the organized.

The overtourism problem

Perhaps the most concrete expression of unsustainable travel is destination saturation. Venice, Barcelona, Kyoto, Amsterdam — all have implemented measures to limit or redirect tourism pressure: access fees, visitor limits in peak zones, accommodation restrictions.

These measures signal something important: sustainability in travel isn’t only an environmental question. It’s a question of whether destinations can absorb visitor volume without deteriorating into poor experiences for everyone, residents and tourists alike.

For travelers, this creates genuine opportunity: the destinations adjacent to the oversaturated ones — accessible, less crowded, often better value — are an underserved market. The brands that help travelers find those alternatives are providing a genuine service, not just sustainability theater.