Where can I buy (online or physical store) phone cards to call from South Korea to the US?

You can find phone cards at most convenient stores (ministop, etc.).

You can also dial 00388-(then the US phone number) and it will be 10 cents a minute. For example: 00388-14051111111. I use this all the time to call my family.

Also, you can use skype and it will be free if you talk to your family/friends through the internet.

You are in Korea I am assuming, so Family Mart or 7-11.....I guess there are other places also, but that's where I always got my phone cards. I think most convenience stores would have them.

Hope it helps

M.

I got a pretty cheap card at 7-11, but they sell it at Buy the Way too. About 4 cents a minute. You have to ask the cashier for it though, because they keep them in a binder behind the counter.

no no .. honestly, I have this down to a science.
Do you go to Itaewon ever?
Do you know the street with Foreign Food Mart? (It is next to What The Book?) Foreign Food MArt has the very best deals on phone cards to the USA.
Just tell them that you need the cheapest card for calling the USA. The name/card with the best deal changes often, so don't keep asking for the same card... He will charge you less than the amount on the card and you will get the cheapest minutes... i promise. I have been known to take Bus#110 there ONLY to get the card... it is worth it.