Charleroi Airport cancellations as air traffic controllers launch night strike

Flights are being cancelled at Brussels South Charleroi Airport as air traffic controllers begin a series of overnight strike actions that published coverage indicates could run into early October, with the biggest knock-on effects expected on early-morning departures and aircraft positioning.

What’s happening and how long disruption may last

Published coverage indicates the industrial action involves air traffic controllers working for Belgium’s air navigation services provider Skeyes and is focused on the night shift at Charleroi (CRL). The announced walkouts are scheduled to take place nightly from 22:00 to 08:00, starting the night of September 16 to 17, 2026, and could continue through October 10, 2026.

While the action is framed as “night” disruption, the practical impact often shows up later: if aircraft cannot return to Charleroi late at night after delays elsewhere, they may be out of position for the first wave of departures the next morning. That means passengers booked on early flights can face cancellations even though the strike window ends at 08:00.

Local and national reporting has described the dispute as linked to negotiations over compensation for night work, with additional context tied to longer-term operational changes such as plans connected to digital or remote tower concepts intended to support Charleroi and Liège operations.

Scale of cancellations: why morning flights are especially exposed

Estimates circulating in published reporting put the potential disruption at roughly 832 flight movements over the announced period, with a large share tied to morning departures and another portion tied to late-night operations. This matters for Charleroi because many low-cost schedules are built around early departures, tight turnarounds, and aircraft returning to base overnight.

Coverage also notes that the strike is expected to affect airline rotation plans beyond a single cancelled flight. When one aircraft is stranded at a different airport overnight, it can trigger a ripple effect across several routes the following day, including aircraft swaps and last-minute retiming.

In practical terms, passengers may see a mix of outcomes: outright cancellations, rebookings onto later services, or flight-time changes that compress connection windows for travelers continuing onward by rail, coach, or separate tickets.

Which travelers are most likely to be affected at Charleroi

Charleroi is one of Europe’s major low-cost gateways and a key base for Ryanair, with additional services from other carriers depending on season. Because of that airline mix, even a dispute that is technically limited to night shifts can disproportionately affect budget travelers who rely on first departures for weekend breaks and short city trips.

Travelers who should pay closest attention include those departing on the first flights of the day, those arriving late in the evening, and those on itineraries where Charleroi is the first leg of a separate-ticket journey. Separate tickets are common on low-cost itineraries and can increase risk if a missed first segment causes the rest of the trip to unravel.

Families and group travelers may also see fewer easy alternatives when cancellations cluster around peak departure banks, particularly when many passengers are rebooked onto the same limited number of later flights.

What passengers can do now: checks, rebooking, and ground options

For travelers booked to fly during the announced strike window, the most useful step is frequent status-checking directly with the operating airline in the days leading up to departure and again on the day of travel. Airport-level notices may outline the general disruption, but individual flight decisions tend to show up first in airline apps, booking portals, and push notifications.

Because the disruption is tied to overnight operations, passengers scheduled on early-morning departures may want to plan for the possibility of a last-minute cancellation or a same-day retime. If a flight is cancelled, airline policies typically present options such as rebooking or refunds; the best choice depends on whether the trip is time-sensitive and whether there is capacity later that day.

For travelers who still need to reach Brussels or Wallonia even if a flight is disrupted, Charleroi has established ground links to Brussels and surrounding cities, and travelers sometimes consider switching to other regional airports. However, alternatives can be constrained by seat availability and by the fact that disruption in one part of the network can create crowding elsewhere. The most reliable approach is to confirm a replacement itinerary before committing to non-refundable hotels, event tickets, or onward transport.

Why this matters beyond one airport

Charleroi’s role as a low-cost hub means disruption can spread quickly into broader European leisure travel flows. When a base airport has repeated morning cancellations, aircraft and crews may be displaced across multiple countries, producing knock-on delays and cancellations that show up far from Belgium.

The timing also intersects with the shoulder season transition when airlines fine-tune schedules, aircraft utilization, and route frequency. Even if the strike ends on the currently reported date in early October, schedule recovery can take longer as airlines reposition aircraft and rebuild buffers.

For now, the key takeaway for travelers is that the disruption is not necessarily a single-day event. With the action described as a series of repeated night stoppages through early October, passengers flying to or from Charleroi during late September and the first part of October should expect a higher-than-usual risk of cancellations, especially on early departures.