I recently took an international flight booked through United from the US to the EU and back (with a connecting flight both ways) and on the way back they lost our ticket/reservation and we missed our original flights and arrived almost 12 hours later than originally scheduled.
I'm wondering what laws/regulations are in place to protect and compensate passengers who were caused to miss flights due to issues that are the fault of the airlines.
I've read up as much as I can on EU and US transportation rights but I'm having trouble finding explicit sections that support amounts of compensation and was hoping to get some help on people that might have more experience here.
I looked at the Involuntary Bumping section here, which seems good, but the more references I have the better.