Pluna in OW? I wish
Being based in MVD i see the pluna planes flying over my house every day. And they are in the news often. Here's what i know, they completely change the airline, all new short hall CJ planes now. They're opening up point to point routes, some not even connecting to Uruguay. They've got codeshares but only on IB for Madrid and AA for Miami.
If i were them, i'd offer code shares on all their short haul flights, especially to Argentina. Right now there are lots of airlines who fly to Sao Paulo and Buenos Aires who don't come to Uruguay. So for example if i wanted to fly JAL, or LH, or Malaysian or South African Airlines i can't get a single coded ticket from Uruguay. I've got to fly TAM to brazil or AA to EZE. It's crazy because AA only does like 4 flights a week to EZE and that's it. All the other flights from MVD to to the domestic AEP airport downtown. Then you've got to take a 45 minute to 1 hour cab ride to get to EZE.
What Pluna should do is codeshare feeders. While i'd love them to join OW, they might be wiser to play with everybody like Jet does.
There are no *A or ST airlines which fly to MVD, but three OW (LN, AA, IB). There's a Lan Chile, Argentina, Peru, and Ecuador. Who knows maybe if Leadsgate (the owners) fails they'll sell to LAN and it would be either called LAN Uruguay or Pluna, who knows. Then in that case it'd be OW.
Baring Pluna joining OW, maybe at least i can hope they'll put in a real OW lounge in the new terminal which is under construction.