How many days can the flight stay in Hong Kong?

You don't need to apply for a Hong Kong endorsement. As long as the passport is valid for more than 1 month, visitors passing through Hong Kong can enjoy the 7-day transit visa-free policy. Together, there are actually 14 days to be in Hong Kong. You only need to provide your passport and visa certificate to enter Hong Kong.

According to the Hong Kong Special Administrative Region Tourist Visa and Entry Permit Ordinance:

Article 18. During their stay in Hong Kong, visitors to Hong Kong must have sufficient travel expenses without being employed to maintain their livelihood, and must hold extended or return air tickets or boat tickets. However, those who transit to the mainland of China or the Macao Special Administrative Region do not need to hold the above-mentioned air tickets or boat tickets. If you want to stay after the visa-free period, you must get a visa or entry permit before you leave.

Extended data

According to the regulations on tourist visas and entry permits of the Hong Kong Special Administrative Region

Article 3 Whoever holds one of the following documents, regardless of the purpose of coming to Hong Kong, does not need to apply for a visa or an entry permit:

(1) Passport of the Hong Kong Special Administrative Region;

(2) British National (Overseas) passport;

(3) Hong Kong identity certificate;

(4) Re-entry Permit (only applicable to those who return to Hong Kong from the Mainland of China or the Macao Special Administrative Region);

(5) Hong Kong seaman's identity card;

(6) Hong Kong visa identity document, as long as the visa identity document is still valid or the holder's residence period in Hong Kong has not expired;

Article 4 Travel documents shall be affixed with one of the following endorsements:

(a) The holder of this travel document has been confirmed to be eligible for a Hong Kong permanent identity card.

(2) The holder of this travel document enjoys the right to land in Hong Kong. (Chapter 1 15, section 2AAA of the Immigration Ordinance. )

(3) Hong Kong permanent identity card.

Immigration Department of the Government of the Hong Kong Special Administrative Region-Provisions on Tourist Visa and Entry Permit in the Hong Kong Special Administrative Region