SHOW ME THE STUPID PROOF!
I mean come on, I can not find it ANYWHERE!
I've been told that it was shown in the kakashi gaiden, I have reread it several times, just for the sake of reading it(and searching for the thunder god flying jutsu) and all I found of minatos powers was that he shunshin which is just plain fast moving and can be used by pretty much everyone to varying levels of ability, and a kunai which only alerts him(not much of an ability being to alert him, though it is pretty neat).
boy boy boy, ight about that go read kakashi gaidan maga again.
you do, cause I have a feeling I'm the only one who actually went and read it, because I read it several times, so why doesn't someone who can actually find the exact page where it even MENTIONS the word thunder god flying technique, then I might just might start believing you.