Major Airports in Portugal, United Kingdom and Several Other Countries Are Inflicting Unprecedented Travel Chaos on Furious Passengers
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Holiday travel within Europe this year promises more frustration than relaxation. Many air travellers have had their nerves tested by delays and a poor passenger experience at European hubs. According to Eminent’s August 2026 report by Eminent, certain air hubs in Europe, Portugal, the UK, France, Italy and Germany, have the poorest performance levels of their peers and leave travelers in hiking line-like queues and suffer from unreliable and delays flights.
The report analyzed performance levels of international airports in Europe and developed a “Stress Score” ranging from 0 to 100, based on feedback of passengers and performance levels of the airports. The report highlights negative aspects of Europe’s air travel system including on-time performance of flights, length of security wait times, and passenger review ratings.
The study focused on 30 airports and identified a number of challenges in Europe’s air travel system.
Portugal’s Primary Hub Earns Europe’s Worst Stress Rating
Lisbon Airport (Humberto Delgado Airport) has emerged as the most agonising transit point for European travellers, registering an unparalleled Stress Score of 100 out of 100. The hub’s primary operational failing lies in its departure reliability. In 2025, Lisbon recorded an annual departure punctuality rate of just 49.95 percent—meaning that essentially only half of all departing flights managed to take off on schedule. This represents the single worst departure punctuality metric recorded among all major European hubs evaluated in the study.
When departures miss their scheduled slots at Lisbon, the delays are far from trivial. Departing flights suffered an average schedule delay of 25.15 minutes, while arriving flights registered an average delay of 18.43 minutes, despite a somewhat higher arrival punctuality rate of 65.99 percent.
The operational bottleneck extends into the terminal corridors. Security wait times at Lisbon average 20 minutes, a delay that frequently causes bottlenecks throughout the departure hall. These compounding factors have sparked widespread consumer dissatisfaction. Out of tens of thousands of passenger evaluations analyzed, 55 percent expressed explicitly negative sentiment, criticising pervasive overcrowding, inadequate seating, and chaotic boarding gates. The airport maintains an overall traveller satisfaction rating of 3.6 out of 5 stars, reflecting systemic frustration among international visitors.
United Kingdom Gateways: Manchester and Stansted Plagued by Low Ratings and Lengthy Queues
The United Kingdom feature prominently among Europe’s most chaotic aviation hubs, with two of its busiest gateways ranking within the top three most stressful airports on the continent.
Manchester Airport
Ranking second overall in Europe with a Stress Score of 85.7 out of 100, Manchester Airport holds the unfortunate title of receiving the harshest customer criticism on the continent.
The terminal registered an overall traveller review rating of just 3.2 out of 5 stars—the single worst score among all major European airports evaluated. A striking 48 percent of all passenger reviews left for Manchester were explicitly negative. While security wait times at the hub are notably brief—averaging just 4 minutes—the primary source of public outrage stems from administrative friction, staff interaction, and terminal disorganisation. Passengers repeatedly cite rude staff attitudes and security line confusion as major friction points. Operationally, Manchester struggles with flight punctuality: only 66.16 percent of departing flights left on time in 2025, leaving nearly one in three flights delayed by an average of 18.73 minutes past schedule. Arrival punctuality fared marginally better at 69.03 percent, with inbound delays averaging 17.67 minutes.
London Stansted Airport
Ranking as Europe’s third most stressful terminal with a Stress Score of 72.6, London Stansted Airport highlights the service gap between secondary low-cost hubs and major capital gateways like Heathrow. Stansted struggles with severe landside bottlenecks, recording security checkpoint wait times averaging 20.1 minutes—a delay that matches Lisbon’s queues despite Stansted handling significantly fewer complex international transfers. Punctuality remains another major hurdle for the hub: departure punctuality stood at 72.59 percent (with average departure delays of 15.08 minutes), while arrival punctuality reached 71.38 percent (with average arrival delays of 16.00 minutes). Driven by chronic overcrowding, long standing times, and a dearth of seating options throughout the departure lounges, 45 percent of traveller reviews for Stansted expressed negative sentiment, resulting in a low traveller satisfaction score of 3.3 out of 5 stars.
French and Italian Terminals: Infrastructure Bottlenecks and Route Schedule Slippages
Operational bottlenecks and floor-plan deficiencies continue to drag down performance across premier hubs in France and Italy, where high passenger volumes frequently overwhelm terminal capacities.
Nice Côte d’Azur Airport
Taking fourth place overall with a Stress Score of 64.9, Nice Côte d’Azur Airport stands as France’s most frustrating aviation gateway. The Riviera hub suffered severe schedule slippages in 2025, recording a departure punctuality rate of only 62.66 percent. Nearly 40 percent of departing flights failed to leave on schedule, accumulating an average departure delay of 20.61 minutes—one of the worst departure delay durations in Europe. Inbound flights fared better, posting an arrival punctuality rate of 71.59 percent with average schedule delays of 15.37 minutes. Security screening queues at Nice add another 15 minutes of delay on average. Passengers frequently cited Terminal 2’s restricted, cramped layout as a primary source of friction. However, Nice managed to retain a relatively high traveller satisfaction rating of 3.9 out of 5 stars, with negative reviews capped at 36 percent—suggesting that leisure travelers tend to forgive physical terminal shortcomings due to the airport’s desirable coastal location.
Milan Malpensa Airport
Rounding out Europe’s five worst airports is Italy’s Milan Malpensa Airport, which earned a Stress Score of 62.9. Malpensa’s primary operational challenges stem from its terminal architecture and spatial layout, which passengers consistently criticise for being confusing and poorly signposted. Travellers are frequently subjected to long walks between connecting gates, baggage retrieval zones, and passport control checks. Flight reliability at Malpensa remains mediocre: annual departure punctuality stood at 67.66 percent, with delayed departures behind schedule by an average of 19.64 minutes. Arrival punctuality registered at 75.94 percent, accompanied by average arrival delays of 14.83 minutes. With security wait times averaging 15.1 minutes, over 41 percent of travelers passing through Milan’s primary hub left negative evaluations, contributing to an overall customer rating of 3.8 out of 5 stars.
Paris Charles de Gaulle Airport
France’s flagship international hub, Paris Charles de Gaulle Airport, captured sixth place in the continental rankings with a Stress Score of 59.0. Operationally, Charles de Gaulle presents a stark contrast between processing efficiency and flight punctuality. Security checkpoint wait times at the Paris hub are among the fastest in Europe, averaging an impressive 3.4 minutes. However, the airport struggles with flight disruptions: departure punctuality reached just 61.07 percent in 2025, with delayed departures running an average of 19.84 minutes behind schedule. Arrival punctuality performed better at 76.50 percent, though inbound delays still averaged 13.38 minutes. Overall, 35 percent of passenger reviews expressed frustration with terminal navigation and scheduling delays, yielding an average traveller rating of 3.7 out of 5 stars.
Central and Southern Europe: Administrative Delays in Germany, Greece, and Switzerland
The remaining positions in the top ranking demonstrate that administrative processing, passport queues, and security checks create severe bottlenecks across Germany, Greece, and Switzerland.
Düsseldorf Airport
Germany’s primary regional disruption point, Düsseldorf Airport, claimed seventh place with a Stress Score of 57.0. Despite posting respectable flight punctuality figures compared to its international peers—recording a 73.27 percent departure punctuality rate (average delay of 14.08 minutes) and a 76.48 percent arrival punctuality rate (average delay of 12.30 minutes)—the airport suffered from a massive breakdown in passenger relations. Exactly 50 percent of all passenger reviews left for Düsseldorf Airport were negative, driving its satisfaction score down to 3.6 out of 5 stars. Travelers voiced intense frustration over severe passport control queues, border processing delays, and unhelpful staff attitudes, despite security lines moving relatively quickly at an average of 5.7 minutes.
Athens International Airport Eleftherios Venizelos
Greece’s primary gateway, Athens International Airport, finished in eighth place with a Stress Score of 54.8. The hub struggled with landside processing, recording average security queue times of 20.1 minutes—tying London Stansted for the second-longest security wait times in the study. Airside operations also experienced friction, with departure punctuality dropping to 66.27 percent (average departure delay of 17.33 minutes) and arrival punctuality standing at 69.68 percent (average arrival delay of 15.53 minutes). Remarkably, despite these processing delays, Athens maintained the highest customer satisfaction score among all ranked airports, boasting a 4.3 out of 5 star rating and keeping negative review rates down to just 31 percent.
Geneva Airport
Completing the top rankings in ninth position is Switzerland’s Geneva Airport, which recorded a Stress Score of 52.8. Geneva faced steady landside and airside delays throughout 2025. Security checkpoint processing averaged 15 minutes, while departure punctuality was limited to 68.70 percent, with late flights departing an average of 16.36 minutes behind schedule. Arrival punctuality recorded a higher 75.70 percent, though arriving delays still averaged 13.10 minutes. The combination of security wait times and boarding room congestion led 42 percent of evaluated travelers to log negative feedback, resulting in an overall customer rating of 3.9 out of 5 stars.
Comparative Analysis: Europe’s Top 9 Most Stressful Airports
| Airport Name | Country | Departure Punctuality | Arrival Punctuality | Avg Departure Delay | Security Wait Time | Negative Review Rate | Overall Rating | Stress Score |
| Lisbon Airport | Portugal | 49.95% | 65.99% | 25.15 min | 20.0 min | 55% | 3.6 / 5 | 100.0 |
| Manchester Airport | United Kingdom | 66.16% | 69.03% | 18.73 min | 4.0 min | 48% | 3.2 / 5 | 85.7 |
| Stansted Airport | United Kingdom | 72.59% | 71.38% | 15.08 min | 20.1 min | 45% | 3.3 / 5 | 72.6 |
| Nice Côte d’Azur | France | 62.66% | 71.59% | 20.61 min | 15.0 min | 36% | 3.9 / 5 | 64.9 |
| Malpensa Airport | Italy | 67.66% | 75.94% | 19.64 min | 15.1 min | 41% | 3.8 / 5 | 62.9 |
| Charles de Gaulle | France | 61.07% | 76.50% | 19.84 min | 3.4 min | 35% | 3.7 / 5 | 59.0 |
| Düsseldorf Airport | Germany | 73.27% | 76.48% | 14.08 min | 5.7 min | 50% | 3.6 / 5 | 57.0 |
| Athens Int’l | Greece | 66.27% | 69.68% | 17.33 min | 20.1 min | 31% | 4.3 / 5 | 54.8 |
| Geneva Airport | Switzerland | 68.70% | 75.70% | 16.36 min | 15.0 min | 42% | 3.9 / 5 | 52.8 |
Expert Recommendations for Navigating Air Travel Friction
The study showed that most airport infrastructure in Europe is not equipped to handle the types of connections that airlines schedule. Travel industry experts expect that, as demand for air travel returns to 2019 levels, delays and disruptions will increase. One industry expert suggested that travelers should add additional time to their itineraries to account for delays and disruptions.
Frank Pieper, a travel industry consultant at Eminent, said “When travelling during this period of peak instability, do not accept connections recommended by the airline. Instead, recommend a connection time of at least three hours for trans-European and trans-Atlantic flights, and two hours for inter-European flights. The airlines’ suggested 90 minute connections will result in a significant number of travelers missing connections.”
Because connections at major European hubs are not managed efficiently, and because many flights are delayed and disrupted, connecting through major European hubs is a source of stress for many travellers. The lack of investments to modernise and improve European airport and air traffic control systems is likely to result in further delays and disruptions.
