As a precaution for the COVID: We are lucky to have for this event the French travel agency www.optionway.com who offers the possibility of an insurance from leading global insurance group AXA that covers the flight part of your trip and provides essential coverage to protect you from any unforeseen circumstances (No reason, no proof insurance for cancellation before your departure and refunds 70% of the price of the flight ). You just have to buy the insurance during your booking.
If you prefer to go directly to the airline’s sites:
For information there are several companies (examples below) that propose also flexible changes in the flight tickets specially this month. (but in general, is not a refund only changes without fees)