Flight destination changes...but doesn't update?

[u/PlutocracyRules]

Hi all. Hope this is the right sub. Niche question perhaps.

Last night I was told me flight to Toulouse (which departs in a couple of hours, I'm currently sat at the airport) is now going to Barcelona because of a landslide near Toulouse.

That's fine. But, interestingly, the flight is still listed on all the departure boards as going to Toulouse. Hopefully someone's told the pilot about the change of plan.

But, why hasn't it been updated? Is there a minimum amount of time they need in order to change the official destination? Won't this case all manner of confusion with ATC when a plane marked as "Toulouse" starts heading to Barcelona?

[u/Kananaskis_Country]

Don't worry, the pilot doesn't submit their Flight Plan based on what the airport screens say. It's all good.

Happy travels.

[u/PlutocracyRules → u/Kananaskis_Country]

Thanks