Welcome to the forums, lindauuu.
Please note my corrections to your post:
1 could be used in a different context, such as 'Do you arrive at HK airport at 5 o'clock or 5.30?'
3 is ungrammatical.
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Please note that a better title would have been Do you arrive at HK airport?
Extract from the Posting Guidelines:
'Thread titles should include all or part of the word/phrase being discussed.'
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