Portway unrest causes 237 delays and 6 cancellations at Lisbon and Porto airports

Disruption overview

Ground-handling problems linked to Portway staff unrest caused 237 delays and 6 cancellations at Lisbon Humberto Delgado Airport and Porto Francisco Sá Carneiro Airport on 12 May 2026. Passengers faced longer lines, gate changes, and congestion as the slowdown spread through both airports.

Ryanair, easyJet, Vueling, TAP Air Portugal, Aegean Airlines, and KLM were among the airlines affected. Because ground-handling shortfalls are usually treated as an operational issue rather than something outside the airline's control, some passengers may be able to claim up to $650 compensation under EC 261 if their flight was canceled or delayed long enough.

Disruption details

Passengers traveling through Lisbon Humberto Delgado Airport (LIS) and Porto Francisco Sá Carneiro Airport (OPO) on 12 May 2026 faced a fresh wave of disruption after problems linked to unrest among Portway ramp and check-in staff slowed ground handling. By the end of the day, the two airports had logged 237 delays and 6 cancellations.

For passengers, this meant longer lines at check-in and security, last-minute gate changes, and more congestion in the terminals during the busiest morning and late-afternoon peaks. Families starting trips and travelers connecting through Lisbon onto long-haul TAP Air Portugal services were among those hit hardest.

The disruption on 12 May 2026 included:

• A total of 243 flights were affected across the two airports.

• Both departing and arriving flights were hit.

• Most delays stayed under 1 hour, but a significant share stretched to several hours.

• Leisure routes to cities including Barcelona and Amsterdam saw some of the longer hold-ups.

Even though only 6 flights were canceled outright, the wider effect was bigger. When baggage loading, aircraft servicing, and boarding take longer than planned, planes leave late, arrive late, and pass the delay on to later flights.

That was especially difficult at Lisbon and Porto, where schedules are tight and aircraft often spend only a short time on the ground. Small hold-ups at one gate can quickly spread through short-haul rotations and busy connection windows.

Airlines built around quick turnarounds, including Ryanair, easyJet, and Vueling, were heavily exposed. Network carriers such as TAP Air Portugal, Aegean Airlines, and KLM also faced pressure protecting onward connections and keeping aircraft and crews in the right place for later flights.

The slowdown was linked to discontent over staffing levels and working conditions at Portway. No formal strike call was reported for 12 May, but the disruption was widely tied to renewed employee unrest and low staffing ratios.

That mix can create a much bigger operational problem than the cancellation count suggests. Missed connections, delayed inbound aircraft, and overnight schedule imbalances can all follow once a busy airport starts running behind, and that risk may rise further as summer traffic builds if backup staffing and coordination do not improve.

At the time of publication, the disruption was still continuing. Airlines were urging passengers to check their flight status often and arrive early, and some residual delays could carry into the following operating day while schedules are put back into line.

If you were departing from Portugal, or flying into Portugal on an EU airline, and your flight was canceled at short notice or arrived more than 3 hours late, you may be entitled to up to $650 compensation under EC 261. Because ground-handling problems are usually treated as an operational issue rather than something outside the airline's control, many affected passengers could have a claim depending on the route and length of delay.

Even if you're not sure where you stand, it's worth checking. Your airline should also provide care during a long disruption, including meals, rerouting or a refund, and accommodation if an overnight stay becomes necessary. You can check your compensation with AirHelp's free flight checker in just 2 minutes.

Protect your future trips with AirHelp+

Secure your flights, luggage and get lounge access