Europe's Strike Calendar

European airport strikes rarely arrive as a surprise. In France and Italy, the two countries covered here, the law requires days of formal notice before a strike in air transport, and Italy goes further by publishing strike-free weeks and guaranteed hours. What notice does not give you is the part travellers actually care about: which flights will go, which will not, and how far the effect will spread. A strike over France can delay a flight from Madrid to Frankfurt that never touches French soil. This explainer walks through the calendar you can know in advance, the part you cannot, and what is worth watching on the day.

How much warning a strike gives

France. Air traffic controllers in France work under two layers of notice. Unions must file a strike notice five days before the action, and since a law adopted at the end of 2023, each controller who intends to strike must declare it individually, no later than noon two days before the strike day (Public Sénat, "Grève des contrôleurs aériens," captured 2026-09-27). The point of the second layer is arithmetic. Once the civil aviation authority knows how many controllers will be absent, it can tell airlines how many flights to cut, and airlines can cancel in advance rather than on the day. The article quotes the law's author as saying that in 2024, 80 percent of strike days in the French air sector led to no flight cancellation at all.

That flight reduction programme is visible in the numbers. EUROCONTROL's paper on the 3 and 4 July 2025 strike notes that part of the jump in cancellations came from "the flight reduction programme set up by France in response to the strikes" (EUROCONTROL, captured 2026-09-27).

Italy. Italy's 1990 law on strikes in essential public services sets a minimum notice of ten days, and requires the companies that run the service to tell users, at least five days before the strike begins, how and when services will run during it (Legge 146/1990, art. 2, captured 2026-09-27). The Italian civil aviation authority, ENAC, points travellers to two public calendars of announced actions, one kept by the strike guarantee commission and one by the Ministry of Infrastructure, and it is ENAC's job to identify which connections must be guaranteed (ENAC, "Scioperi nel trasporto aereo," captured 2026-09-27). The same article of the 1990 law also names the exception: the notice rules do not apply to stoppages in defence of the constitutional order or in protest at serious events that harm worker safety.

So for a trip through Paris Charles de Gaulle or Rome Fiumicino, the date of a strike is normally public days before you fly.

Italy's strike-free windows and guaranteed hours

In Italy, the calendar is literally a calendar. ENAC's summary of the sector rules lists periods when air-transport strikes are not allowed, including 18 December to 7 January, 24 April to 2 May, 27 June to 4 July, 27 July to 5 September and 30 October to 5 November, plus Easter week and the days around national elections (ENAC, "Prestazioni minime garantite," captured 2026-09-27).

Outside those windows, a strike day still has protected hours. The same page lists two three-hour bands, 07:00 to 10:00 and 18:00 to 21:00, in which scheduled departures are guaranteed. A traveller who knows only the date of an Italian strike can therefore already see that a 08:30 departure sits in a protected band and a 13:00 departure does not.

One caution the Italian rules do not cover: they apply to Italian workers. A strike by controllers in a neighbouring country is outside them, which is where the next section comes in.

Why a French strike delays a flight that never lands in France

European airspace is shared. EUROCONTROL's paper on the July 2025 French air traffic control strike puts it plainly: around 33 percent of European flights cross, land or take off in France each day, and almost 60 percent of those are overflights, aircraft passing through French airspace on their way somewhere else (EUROCONTROL, captured 2026-09-27).

Over the two strike days, EUROCONTROL counted an average of 3,713 delayed flights a day across Europe, 10.7 percent of all flights, and 1,422 cancellations a day, 4.7 percent of scheduled flights. The most striking line is about Spain. Spain had 978 daily departures delayed by the strike, more than France's own 819, and 94 percent of Spain's affected flights (918 of 978) were overflights rather than flights to France. For the other affected states, between 65 and 86 percent of impacted flights were overflights.

The paper also explains why. France's minimum service rules stop its air traffic control from closing completely, but they do not protect overflights; EUROCONTROL names Italy and Spain as examples of countries whose rules do. Aircraft that could not get through French airspace went around it, and some flights to and from the Canary Islands region extended their path by more than 600 km. So Spain as a whole had more departures delayed by the French strike than France did, almost all of them overflights; a departure from Madrid-Barajas can be caught up even though it never lands in France.

What notice does not tell you

Notice fixes the date. It does not fix the list of affected flights, and it cannot show the knock-on effect. Four things stay uncertain until close to departure:

• Which flights get cut. In France, the reduction can only be sized once individual declarations are in, two days out, so the list of cancelled flights firms up late.
• The knock-on. EUROCONTROL notes that delays spread to later flights flown by the same aircraft, so a delay picked up over France in the morning can surface on an unrelated route in the afternoon.
• The overflight exposure. Whether your flight crosses the striking country's airspace depends on routing, not on either airport.
• Late cancellations. EUROCONTROL counts cancellations by comparing the schedule two days before a flight with what flew, so a cancellation made in the last two days before departure still shows up in its count.

What a tracker can show on the day

On a strike day, the useful signals are the ones that update as the day goes on.

Status first. A cancellation or a revised departure estimate on your own flight number is the most direct answer, and it is worth checking again rather than once, because reductions and delays keep changing through the day.

The inbound aircraft. Because delays travel with aircraft, the flight that is due to bring your aircraft in can tell you more than your own departure time. If that inbound flight is running late over a strike-affected area, your departure is likely to follow.

The track itself. Flight maps built on ADS-B show where aircraft actually are. With ADS-B, an aircraft works out its position from satellite navigation and broadcasts it, and receivers on the ground pick that signal up (Wikipedia, "Automatic Dependent Surveillance–Broadcast," captured 2026-09-27). On a French strike day that makes reroutes visible: aircraft that would normally cross France taking longer paths around it, like the Canary Islands flights in EUROCONTROL's example. The signal weakens with distance from a receiver, so what any ADS-B map can show depends on where receivers are.

The departure board at the airport. For guaranteed Italian bands, the board shows whether a flight inside 07:00 to 10:00 or 18:00 to 21:00 is running as scheduled.

Refunds and rebooking: the airline's page, not this one

What you are owed after a strike-related cancellation or long delay depends on the airline, the route, your ticket and the rules that apply to it. This article does not state them. Your airline's own published policy and its customer service channel are the right place to check.

How TrackMyWings™ helps

TrackMyWings™ is a live flight-tracking platform in development. A private Android beta has been on the Play internal testing track since 2026-08-24, and there is no public launch date yet. Gate and status alerts, a live map and a shared family view of a trip are planned features, and when they launch they will be built for exactly this kind of day: a status that changes several times before departure, with people waiting at the other end who need to know too.

Questions people ask

How far in advance are French air traffic control strikes announced? Unions file notice five days ahead, and individual controllers must declare by noon two days before the strike day, according to Public Sénat's account of the 2023 law. That is the point from which airlines can size their cuts.

Are there weeks when Italian air transport strikes are not allowed? Yes. ENAC lists several, including 27 July to 5 September and 18 December to 7 January. Strikes by workers in other countries are not covered.

Why is my flight from Spain delayed by a strike in France? Because it probably crosses French airspace. In the July 2025 strike, 94 percent of Spain's affected flights were overflights of France, according to EUROCONTROL.

Where do I check what I am owed after a strike cancellation? On your airline's own published policy page, or through its customer service channel. The rules depend on your airline, route and ticket.

Sources

• EUROCONTROL, "Impact of the French ATC strike of 3 & 4 July 2025 on European Aviation," published 10 July 2025: https://www.eurocontrol.int/publication/impact-french-atc-strike-3-4-july-2025-european-aviation, captured 2026-09-27; full paper: https://www.eurocontrol.int/archive_download/all/node/15370, captured 2026-09-27
• Public Sénat, "Grève des contrôleurs aériens : la loi sénatoriale qui permet de limiter l'annulation de vols," 3 July 2025: https://www.publicsenat.fr/actualites/economie/greve-des-controleurs-aeriens-la-loi-senatoriale-qui-permet-de-limiter-lannulation-de-vols, captured 2026-09-27
• Legge 12 giugno 1990, n. 146, art. 2 (Italian Ministry of Labour): https://www.lavoro.gov.it/sites/default/files/documenti-e-norme/normative/Documents/anniPrecedenti/19900612_L_146.pdf, captured 2026-09-27
• ENAC, "Scioperi nel trasporto aereo": https://www.enac.gov.it/trasporto-aereo/diritto-alla-mobilita/scioperi-nel-trasporto-aereo/, captured 2026-09-27
• ENAC, "Prestazioni minime garantite": https://www.enac.gov.it/trasporto-aereo/diritto-alla-mobilita/scioperi-nel-trasporto-aereo/prestazioni-minime-garantite/, captured 2026-09-27
• Wikipedia, "Automatic Dependent Surveillance–Broadcast": https://en.wikipedia.org/wiki/Automatic_Dependent_Surveillance%E2%80%93Broadcast, captured 2026-09-27