User blog comment:FairyTailFan7/Sting's Attacks Are Light Speed?/@comment-26715029-20150820131706/@comment-75.136.10.220-20150820170148

Not only would it mean Natsu is aware of light speed attacks, it also means that Natsu is FTL if Hiro does confirm that.

I'd actually like to write Hiro and ask him a few questions myself. However, I can't speak Japanese nor do I have an accurate translator. T.T

Now we do know that Jellal used heavenly body magic on himself in this image. http://m.mangatown.com/manga/fairy_tail/v12/c096/10.html

Now since Jellal says the word meteor, I'm just going to ASSUME that his speed is that of an actual meteor.

Here is Jellal using meteor again. http://m.mangatown.com/manga/fairy_tail/v12/c098/9.html

And in this image Natsu managed to keep up with his speed in his Etherion Dragon force. http://m.mangatown.com/manga/fairy_tail/v12/c098/10.html

So, I would say Natsu is as quick as a meteor which I believe is hypersonic speed from my understanding, correct me if I'm wrong. The internet isn't exactly the most reliable source.

Now, this is happened EARLIER in the manga. So I do believe that Natsu's speed could have increased greatly.

Oh, and this wiki is missing information on Natsu's durability.

He was hit by magic that was compared to an actual meteor. Meteors are nothing to laugh at. Even Jellal was impressed he was in one piece. I tried to edit Natsu's durability but it wouldn't let me.

http://m.mangatown.com/manga/fairy_tail/v12/c096/16.html