Airlines and operators say that the industry is facing an unprecedented crisis due to the restrictions on travel that may take years to recover from.
“In April 2020… Paris Aéroport traffic decreased by 98.6 percent with 0.1 million passengers welcomed,” Group ADP, which operates the city's main Charles de Gaulle and Orly airports, said in a statement.
Orly has been temporarily closed since April 1 due to the decline in demand while at Paris Charles de Gaulle only terminals 2A, 2C, 2E and 2F have been kept open to operate commercial flights, it said.
Only between 5,000-7,000 passengers are currently passing through the airport every day, it said.
The French government has said people will be able to take summer holidays but is strongly discouraging international travel, especially outside Europe.
France this week lifted an almost two month lockdown imposed on March 17. But people still cannot travel more than 100 kilometres (60 miles) without a compelling reason.
Air France-KLM is to benefit from seven billion euros in loans either from or backed by the state, along with an expected two to four billion euros in aid from the Dutch government.
Air France-KLM this month announced a first-quarter loss of 1.8 billion euros.