"France does not have a permanent overflight agreement" with the Jewish state, a spokesman said on Friday.
Earlier, a ministry source said Paris had been hoping that Israel would allow the Dassault Falcon aircraft transporting Arafat from the Jordanian capital Amman to fly through its airspace.
"This would be easier than turning south and going through Egypt because that would extend the trip by more than a half hour," he said.
French officials said before the re-routed flight that they expected the jet to land at a military airport outside Paris around midday (1000 GMT).
Arafat is to be taken to the nearby Percy military hospital at
Clamart for treatment.
According to one of his doctors, the Palestinian leader is suffering a potentially fatal disorder in which his white blood cells were destroying blood platelets needed for blood clotting.
Meanwhile, the European Union pressed Israel to guarantee the return of Arafat after treatment.
EU foreign policy chief Javier Solana informed the Palestinian
The Palestinian icon is said to be
suffering from a blood disorder
representative in Brussels, Shawi al-Armali, of talks he had with Israeli authorities, the London-based al-Hayat newspaper reported.
Armali was quoted as saying that Palestinian Prime Minister
Ahmad Quraya received a letter from Dov Weisglass, a top aide to Israeli Prime Minister Ariel Sharon, giving Israel's assurances to allow Arafat to return to the Palestinian territories.
Solana also held talks with Quraya on the "extraordinary
situation" over Arafat's health and "European Union efforts aimed at calming the situation and helping the implementation of the unilateral [Israeli] withdrawal from the Gaza Strip", he said.
The US consul-general in Jerusalem informed Quraya and
Palestinian negotiator Saib Uraiqat that "the American administration has received guarantees from Israel that it will not forbid the return of Arafat" the London-based Arab daily al-Hayat reported, quoting Palestinian sources.
Meanwhile, Egyptian media reported that Sharon had given assurances on Arafat's return following a phone call with Egyptian President Husni Mubarak.
"President Mubarak underlined the necessity for Israel to guarantee the return of President Arafat to the Palestinian territories ... for his part, the Israeli Prime Minister gave Israel's agreement for Arafat to return," the official Mena news agency reported.