The Charles de Gaulle Airport (CDG) is located in Paris, France. It is France’s largest international airport, with an annual passenger capacity exceeding 83 million. The airport has three terminals: 1, 2A-2G, and 3, all of which are connected by the free CDGVal metro.
With its massive visitor rate, the airport has three transport options: RoissyBus, RER trains, and taxis, which makes it possible for visitors to travel 30–60 minute to central Paris.
There are common causes of delays at CDG airport today, the usual ones being labor strikes, harsh seasonal weather conditions, and problems amounting to biometric border rollout. In this piece, we will be learning about the Paris Charles De Gaulle Airport (CDG): France’s most famous airport and the reason behind the delayed flights.
The commonly known causes of flight delays at CDG are:
In early 2026, the airport witnessed a major winter storm: the storm Hernando. This was followed by freezing periods that led to huge weather disruptions. During this time, there was a heavy accumulation of snowballs and thick ice, which requires huge de-icing process. This incident led to a 20-40-minute turnaround of all airplanes.
This bad weather can also lead to low visibility, hence frequent morning fog. This foggy weather had once forced the French Civil Aviation Authority (DGAC) decrease flight schedule to 40% as a precautionary safety measure.
Oftentimes, strike actions by the airport labor force do stale the activities of the Paris Charles De Gaulle Airport (CDG), and by extension the airline operations. The latest strike was in 2025, on the eve of the Olympics. Airport workers planned to strike to protest the disparity in bonuses. The planned protest was aimed at disrupting the Olympics activities at the airport.
Another scenario that happened was in 2022, which led to Lufthansa cancelling hundreds of flights moving to and from Paris CDG airport, as a result of workers’ strike by workers protesting over the airport’s cost-cutting measures.
Since the CDG is operating as a high-density “ultra-hub,” a single delay can cause a domino effect, thereby disrupting airline movement for the entire day. This situation can also cause congestion in passenger movement. This is common during peak hours, like holiday seasons, gate availability, and strain terminal.
The airport’s Entry/Exit System (EES): EU’s biometric EES, rolled out in 2025, posed another set of problems for the airport. Factors like longer processing and Kiosk outages have been said to have contributed to an additional 20–30 minutes delay in connection times, thereby making airline transfers more difficult.
This is common in most airports, a situation where slow airplane maintenance stalls airline operations, and CDG is no exception. There have been events of unscheduled aircraft maintenance, airport equipment malfunctions, e.g., radar glitches, or runway lighting. This has made it to the list of the most common causes of flight delays at CDG airport.
The airport is yet to perfect the “Parafe” e-gates, which use facial recognition. This machine is considered incapable of capturing passports of passengers from the United States and the UK under the new EU Entry/Exit System (EES) rules. The lapses in this process forces airport authorities into resorting to manual processes, hence creating unnecessary queues in the airport, and by extension causing flight delays.
This latest implementation of the EU’s new biometric Entry/Exit System has caused major setbacks in airport operations. It has been said to be the major cause of technical outages and system crashes at the airport’s biometric verification kiosks. And it’s the major reason for the 20-30-minute delay experienced on most connecting flights.
Technical issues top the list of reasons for airplane delays in CDG. The widespread of them are hydraulic leaks and engine checks, causing some unscheduled maintenance in airlines. In 2025, these reasons contributed to more than 26% of the reasons for flight disruptions.
CDG handles over 2000 airlines daily, hence, very sensitive to delays from other airports. A flight delay from other connecting airports can have a ripple effect through the entire flight network. This situation can cause flights crews and aircraft to go off balance when scheduling their next departure at the CDG.
One funny thing about airline schedules in CDG airport is that one doesn’t need to wait till festive seasons before it becomes flooded. For example, airlines today have already scheduled winter 2026 timetables. The slightest slack in that arrangement can be chaotic, hence forcing late-arriving aircraft to delay for at least 20 minutes before things get back to normal.
Most times, major construction work on the RER B rail line and joining metro services often affect passenger access to the airport. This can lead to a delay in boarding, especially during peak seasons, thus forcing airlines to delay their movement.
There are many effects of delay in CDG:
There are many impacts these delays have on both the commercial and economic aspect of Paris. Some of them include:
This is the first step to take as a victim of a delayed flight. Check airline status using its official website or app, input your flight information: the number and date to get up to date on the latest situation. It should be able to tell you if it’s delayed, cancelled, or not, and the reason for the delay. However, most airlines operating in CDG directly send this information to their passengers in real time.
There are over 10 different passenger rights in the EU meant to protect different types of air travelers. The major ones include the right to information before and during travel, which mandates airlines to provide passengers with useful information before or during takeoff. Another is the right to non-discrimination in access to transport, which protects every passenger against any form of discrimination e.g., racial discrimination, etc. Other relevant rights include the right to compensation and enforcement under certain circumstances, which is stimulated in the EU Regulation (EC) No 261/2004, dubbed EU 261.
The regulation applies to passengers travelling with:
- A European Union (EU) carrier or
- Any carrier departing from the EU
That is to say, flights with an EU registered airline or flights taking off from the EU region are covered by the Regulation.
The regulation states that passengers may be eligible to get compensation if:
- They experience flight delays of more than 3 hours
- Flights are cancelled less than 14 days before the scheduled departure
- They are denied boarding due to overbooking
- They miss a connection
Approaching airport staff during a flight delay situation helps victims get acquainted with the next step to take. The rep should be in the best position to advise them on the best step forward, e.g., whether to rebook their tickets, confirm an outright cancellation, or the actual reason for the cancellation.
With millions of visitors recorded annually, one must not expect the operations at the CDG to go smoothly all year round, hence the delay in flight schedules. Today, the airport is putting in efforts to cut most of the causes of this delay. This can be seen in its integration of 3D baggage scanners, for improved baggage scanning activities, an expansion in the self-service check-in kiosks, which they plan to increase from 294 to 366.
Other aspects of improvement include real-time ground tracking, which is seen with the introduction of the InNOVA technology. AI for Resource Allocation, etc. Finally, CDG Paris airport may not be perfect in air traffic regulation, but it can always be better, considering the amount of effort put into scaling it.