Lufthansa is offering free cancellations to travellers with tickets up to and including 31 August.
Israel’s military spokesperson said the Houthis had used the port to receive weapons shipments from Iran.
Israeli media reported that the security agents violently dispersed some demonstrators.
A former hostage, whose husband is still being held in Gaza, addressed the demonstration in Tel Aviv, calling on Mr Netanyahu to “Bring them home!”
The airline said passengers could also fly Accra-China-Accra, a new connection.
Gaza’s Hamas rulers published a list of 15 women and 15 teenagers to be released from Israeli jails in return.
The groups also kidnapped around 240 people and took them to Gaza.
Mr Macron was speaking on Tuesday in Tel Aviv during a meeting with Israeli Prime Minister Benjamin Netanyahu.
Mr Herzog’s office quoted the Israeli president as saying, “Welcome, Mr President. God bless you for protecting the nation of Israel.”
The Israeli military has pulverised the Gaza Strip with missiles in reply, with a ground offensive also being prepared – a move likely to increase the death toll.
