If you flee or faint Uxie in platinum, will it return?

Question

I fled the battle because I ran out of pokeballs. Will Uxie return or can it be found roaming around Sinnoh. It isn't appearing on the map.

Comments

I caught an Uxie! I had to use heaps of poke balls and I caught it with a Luxury Ball

Answer 1

Yes he will return if you flee I did the same thing with azelf. But if you kill a legendary they will never come back.

Comments

Speed is right. That is for HG/SS that beating the E4 makes Pokemon return (which I disagree with)

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But I ahve KOed many legendaries and they all return after beating the E4.

Answer 2

No speed freak your not right if you kill or flee all you have to do is beat the elite 4 again and it will come back