I agree with Kristina M. For the majority of full-time jobs, bereavement pay is 3-5 days. Generally 3 days, is when an employee has not been there long. The five days are usually given to long-term employers. IF she is YOUR employee, she is technically owed bereavement pay.)
Keep in mind, you aren't really "letting things go." She didn't CAUSE or ASK for a family member to die. That's a very cold way to look at it. Letting things go, is talking on cellphones, not cleaning, things like that. Don't you think if she was able, she would pay for the next flight, to say good bye? I think so. I think it's unfair to say she is EITHER unwilling, or not able. Let's be real, she's not able. Pay for what she is owed as your employee (again, IF she is you personal employee. 3-5 days, your call) and leave it at that. And, draft up a contract, ASAP. You kind of shot yourself in the foot without a contract, unfortunately.
I hope with her return, things get less stressed and complicated for your family, and less costly.
If she hasn't even brought it up, I seriously doubt she expects any pay. I wonder if you aren't really worried over nothing, at this point. (I can see how you are concerned, obviously.) I would be shocked for anyone in her position, to even ask.