As far as MSY
It is a very popular tourist/convention market. There are conventions going on weekly which bring in travellers from all around the world. The city is always ranked high for its dining, attractions, historical venues, and music scene. It's not just Mardi Gras, and anyone that knows anything about the city will tell you that. Don't listen to the negative opionions from others...they haven't a a clue! The city is constantly ranked in the "top 10 North American cities" list, and in the "top 15 in the world."
Being a large port city, there is a good deal of traffic to Europe. Many workers on the ocean-going freighters use MSY
to fly back to their homes, which are mostly located in Europe and Eastern Europe. Also, the obvious connection between Louisiana and France...both culturally and economically....don't listen to JCS or whoever else, there is a strong connection here.
That being said, MSY
has been ignored because of a lack of major business ties to European markets. Sure, some MSY
-based companies (Tidewater,Freeport/McMoran,etc) have European offices, but not enough to really justify a direct flight....yet.
Overall, the demand is there from tourists and conventioneers to justify a twice-weekly, year-round service. It would not be any more low-yield than flights to MCO
Hope this helps a little.
Steve in New Orleans