If you have a flight out of Brussels airport on Monday, Dec. 20, be aware that personnel from Brussels Airlines (part of Lufthansa) will be on strike starting at 5 a.m. on Monday, for a duration of 24hrs. Major disruption is expected, but it’s unclear how many flights will be cancelled.
Even if you are not directly impacted by this strike, it might be best to take extra time to get to the airport and to check-in.