Originally Posted by
atflyer
....But the Mexico-CDG was inbound to the EU not? This would give at least a basis to try EU261 since that applies also to non-EU carriers. Of course I agree the case is difficult and not clear cut.
Unfortunately, that is not correct. EC261 applies to all flights departing the EU, plus those arriving the EU IF operated by a EU carrier. This is clearly stated in Article 3.1.
I don't know for UK261.