Travel to Costa Rica

Looking for suggestions on traveling on ZED fares from Canada to SJO February 9th returning February 19th?

Have looked into CO out of either EWR or IAH, DL out of ATL and LR and AA out of MIA.

Have been unable to speak with someone from LR re loads and listing for MIA to SJO leg. Any advice?

Also looking for info on discounts with Sansa or NaturAir in Costa Rica. Do they offer any discounts for airline staff?

AA
MIA/SJO
All 4 flights look good at the moment.
See your PM

Costa Rica is seriously a very beautiful place.