Hello,
I hope I'm not too late for your inquiry.
El Porvenir still seems to be closed. Corazon de Jesus is a good airport to fly to for a visit to the San Blas. Lanchas can bring you anywhere, just negotiate with the Kunas.
If you are looking to get to the San Blas (combination jeep and lancha) over land, I suggest you use Lam Tours. The person who "runs the place" is Judi and she is a very responsible and reliable (tough combination to find in Panama, let alone Kuna Yala :-)) person. Phone number (in Panama): 608-89000 She is busy with the transportation in the morning, so afternoons are better to call and talk to her.
The jeep picks you up at any hotel/hostel in Panama City and drops you off at Carti for $25 per person, one way. There is a $6 p.p. Kuna Yala visitor's fee and another $3 port fee. My husband and I just did all this yesterday to get back to our boat (home). The cost of a lancha to your hotel/island of choice depends on the distance. Chichimi is a wonderful place to stay for a few days and the boat trip here costs $15 one way. Judi and Lam Tours also organize accommodation on the islands.
Hope this helps!
Liesbet
SV Irie
www.itsirie.com
Currently in the West Lemmons (San Blas)