European airports are entering a period where more passengers alone no longer solves financial and operational problems. ACI EUROPE warned at its annual congress in Prague on June 23 that the industry faces higher costs, significant investment needs, stricter sustainability requirements, stronger competition, and increasingly unpredictable geopolitical risks. While this may seem like an industry background issue, it is important for Hungarian travelers: in the long run, it could affect which routes remain strong, how much flying costs, how fast security checks are, and what level of service we receive at the airport.
The essence of the recent message is not that every flight ticket will be more expensive from tomorrow, or that European airports are in trouble. The situation is more nuanced. Passenger traffic has proven resilient in many places, tourism remains strong, and there is significant demand on popular Mediterranean, city, and long-haul routes during the summer season. However, according to ACI EUROPE, the old model, where traffic growth automatically brought more revenue and then new investments, no longer works as reliably as before.
Why is this issue coming up now?
ACI EUROPE, which represents more than 600 airports in 55 countries, spoke at its 36th annual congress about how the European airport market has become multi-layered. According to the organization, approximately six out of ten airports have regained their 2019, or pre-pandemic, passenger levels. This means that behind the overall European picture, there are great differences: some large and tourist-strong airports are saturating quickly, while several smaller regional airports are still lagging behind.
This is interesting from the perspective of the Hungarian market because domestic travelers do not only depart from Budapest Airport. Many compare Budapest with Vienna Airport, and for long-haul flights, Frankfurt, Brussels or other large European hub airports often come into play. If the investment and cost pressure on European airports strengthens, its effect will not appear in a single country, but across the entire network: in schedules, transfer times, services, and fees.
The "Great Decoupling": More Passengers, But Not Necessarily Enough Money
One of the key concepts used by ACI EUROPE is the "Great Decoupling," the separation where passenger traffic growth no longer automatically accompanies an increase in investment capacity. According to the organization's data, European airports achieved a total net profit of 11.8 billion euros in 2025, which averages only about 4.5 euros per passenger. This does not sound like little on a total industry level, but per passenger, it shows how narrow the room for maneuver can be when an airport must simultaneously modernize its terminal, develop security systems, finance IT investments, improve energy efficiency, and implement climate adaptation measures.
The revenue side is not simple either. Although airports were able to increase their total revenue in 2025, and non-aviation revenues, such as shops, restaurants, parking, advertising spaces, and real estate utilization, also expanded. Parallel to this, however, costs have risen rapidly, especially capital costs. Therefore, airports must not only handle more passengers but must invest in a more expensive environment, while passengers rightfully expect a faster, more comfortable, and more predictable travel process.
Why Does This Matter to the Passenger?
For the passenger, airport finances are generally invisible until everything works smoothly. The effect becomes perceptible when an airport cannot expand capacity quickly enough, queues are longer, there are few modern security lanes, the terminal space is cramped, or digital developments progress slowly. New CT-based security checks, biometric border processes, modernization of energy supply, and preparation for weather extremes are all investments that are not necessarily flashy, but directly affect the travel experience.
If airports are under investment pressure, two things may become more common. First, greater debate may arise over airport fees, which are ultimately taken into account by airlines' business models and ticket prices. Second, competition between airports for airlines may strengthen, especially where low-cost and network airlines follow different strategies. A route remains sustainably attractive if passenger demand, airport cost levels, operational reliability, and the tourism or business appeal of the given city work together.
The Route Network Does Not Grow on Its Own
According to May data from the International Air Transport Association (IATA), EU air connectivity practically stagnated in 2025: the net growth of the entire route network was only 1 percent. The organization reported 1,127 canceled and 1,281 added routes, representing a net expansion of 154 routes. This is still growth in itself, but with much weaker momentum than what many were used to in previous years.
From the perspective of Hungarian travelers, this means that announcements of new flights should be welcomed with joy, but should not be automatically regarded as a permanent asset. Airlines react quickly to fuel prices, regulatory costs, demand changes, and airport fees. A city or region can maintain stable air connections if, alongside passenger traffic, the entire economic environment is attractive. This is especially important in the Central European region, where Budapest, Vienna, Prague, and several regional airports compete partly for the same passengers and flights.
Investments: Not Just About Terminal Expansion
According to an assessment prepared by the Boston Consulting Group for ACI EUROPE, without action, 45-75 billion euros of airport value creation could be at risk over the next two decades. ACI EUROPE also drew attention to the fact that the investment needs of European airports could reach 360 billion euros in the coming decades, while the ten largest European airports alone plan 36 billion euros in investments over the next five years.
It is important that these investments are no longer just about having a larger terminal or more gates available. Airports must digitalize passenger processes, make infrastructure more secure, reduce their own emissions, integrate new energy sources, and adapt to heatwaves, extreme precipitation, or other weather risks. During a summer peak period, these factors are no longer theoretical questions: delays, closures, heat stress, and capacity limits can directly affect passengers.
What Could This Mean for Ticket Prices?
The price of flight tickets is not determined by the airport's decision alone. Fuel, staff, aircraft availability, demand, taxes, competition, and the airline's business model also matter. Nevertheless, if there is more and more debate about airport fees and investment financing in Europe, its indirect effect may appear in ticket prices or service structures. This is particularly sensitive on short European routes, where the ticket price is lower and the cost pressure can be proportionally more visible.
Hungarian travelers should therefore look not only at the base ticket price, but also at the total travel cost. If, for example, the ticket is cheaper from Vienna, but the total cost increases due to getting there, parking, or staying overnight, it is no longer certain that the alternative is truly more favorable. For early departures or late arrivals, it can be useful to check accommodations around Vienna Airport, as well as Vienna Airport transfers. The same applies to Budapest: Budapest live flight information, airport accommodation, and transfer costs together provide a realistic picture.
The EU is Also Working on a New Strategy
The airport warning fits into the European Commission's spring step: Brussels is working on a new EU aviation and aeronautics strategy. According to the Commission, the sector is simultaneously facing high energy prices, geopolitical uncertainty, supply chain problems, and strengthening global competition. The planned strategy aims to strengthen competitiveness, resilience, and decarbonization, while maintaining European connections.
This framework is important because the interest of passengers is not simply that one player pays fewer or more fees. Passengers need a working, safe, predictable, and affordably priced network. If regulation is too rigid, it may hold back investments. If, however, costs are passed through too quickly, it may make travel more expensive. One of the most important European aviation questions in the coming years will be exactly how to find a balance between consumer prices, airport investments, airline competition, and climate goals.
What Should Hungarian Travelers Pay Attention To?
In the short term, the recent ACI EUROPE signal does not require any specific action from passengers. It is not about entry rules, strikes, or immediate schedule changes. The practical lesson is rather that when choosing a flight route, the reliability of the entire route becomes increasingly important. It is worth paying attention to transfer times, airport congestion, security and border processes, and how conveniently the chosen departure airport can be reached.
Those traveling through major European hubs, such as Frankfurt, Brussels, or Vienna, should allow for a longer transfer reserve during the summer peak period, especially with checked baggage or on non-Schengen routes. Those who choose a departure airport based on price should look at the whole picture: getting there, parking, accommodation, transfer, baggage fees, schedule reserve, and available alternatives in case of possible delays. There are fewer and fewer decisions in flying that are worth making based solely on the lowest base price.
Summary
The recent warning from ACI EUROPE is important because the financial and investment pressure facing airports may eventually appear in the daily experience of passengers. European aviation in the coming years will not just be about whether traffic has returned to pre-pandemic levels. It will be at least as important whether airports are able to modernize, decarbonize, digitalize, and make their operations more resilient so that travel remains affordable and predictable.
For Hungary, this is a particularly sensitive issue because domestic travelers choose between several Central European airports, and tourism depends heavily on good air connections. The current message is therefore not panic news, but an early signal: European flying is entering a new phase where growth is no longer enough. The winning airports and routes will be those that can remain competitive, capable of investing, and passenger-friendly at the same time.