If you've got a flight booked through Brussels Airport next month, you might want to have a backup plan - or a very comfortable couch to cry on. According to Euronews, the airport has issued a warning that a "large number" of flights are expected to be cancelled amid an upcoming strike by Belgium's three largest trade unions.

So what's the beef?

The workers aren't storming the barricades over free croissants (though that would also be understandable). This is about retirement age laws - specifically, the unions are pushing back against current legislation that they argue forces workers to stay on the job longer than they should. Belgium's three biggest trade unions have coordinated strike action, which means disruption won't just be a minor inconvenience - it's shaping up to be a proper, old-school, European-style shutdown.

Brussels Airport has confirmed the action is expected to significantly impact its operations, with a large number of flights set to be grounded. The airport has not yet provided a specific number of affected routes or passengers, but the use of "large number" in an official statement from an airport is basically the aviation equivalent of "we'd rather not think about it."

The bigger picture

Belgium has a long and storied tradition of labour action, and retirement policy has been a particularly hot-button issue across Europe in recent years - France, you may recall, had its own rather dramatic scenes over pension reform not too long ago. Belgium's unions are essentially making the same argument: that raising or maintaining a higher retirement age disproportionately punishes workers in physically demanding jobs who simply can't keep going until the state says it's okay to stop.

Whether you sympathise with the workers or are currently stress-eating at a departure lounge, the practical fallout is the same: significant travel disruption at one of Europe's busier transit hubs.

What should travellers do?

If you have a flight through Brussels next month, the advice is straightforward - check with your airline immediately, look into rebooking options, and watch for official updates from Brussels Airport. Airlines operating through the airport are expected to communicate directly with affected passengers, though "expected" is doing some heavy lifting in that sentence.

As Euronews reports, the situation is still developing, and the full scale of cancellations will likely become clearer as the strike date approaches. In the meantime, maybe consider the train.