Originally Posted by
stevendorechester
And those who think that Canadian courts cannot enforce laws on US airlines departing from the US...they can. The same is true of the DOT enforcing US laws on foreign airlines in some circumstances; a good example would be a recent DOT fine against AC for flying over IRAQ, despite the fact that the flight in question never flew over US airspace.
That situation specifically was because the flight was also a codeshare flight for United, so DOT rules applied. If there was no codeshare agreement by a US carrier, it wouldn't have applied.