Snowden fled to Hong Kong first, then from there to Moscow. He was certainly never "in transit" to anywhere else, nor was any of this under the control (even indirectly) of the US government. He fled to nations which he knew would not extradite him.
It's likely true that he had other destinations in mind. Nonetheless he couldn't get it arranged, and he ended up in Moscow because Putin viewed him as useful and extended an offer of residence that China was apparently not willing to make.
Let's not spin here. Snowden isn't a Russian stooge (though obviously his freedom to speak freely about his host country is extremely limited), but let's not treat with conspiracy theories about this being America's Plan All Along.