Is there a free way to get into/out of Limsa Lominsa?

[Ryuni]

If you set your return point there, then at least you can get there for free (so 50% discount on a round trip).

Well that doesn't matter much, because if you have your return point in Gridania or Ul'dah you're better off in case you die. And it's still 50% discount because you can use return away from La Noscea.