In order to be able to transfer money from or to Panama, either from the US, Canada or any other country, best use Wise, formally Transferwise https://wise.com

Register for free and create your Wise account. Add your Bank account details. Transfer as much as you like. The fees for Wise will be show.

After the verification process, you can send money from anywhere to your Panamenian bank account.

Usually it takes not longer than 3 working days and it's a supersimple and save process.

Be AWARE !!!! Every Panamenian bank charges for every incoming international transfer. The fee is usually around 37,50$ more or less. Doesn't matter, if you send 1 $ or 10.000$, this bank fee remains the same per transfer!