Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Da Nang to Lloret de Mar as you normally would.
Da Nang (DAD) is the airport you will fly out of if you book a flight from Da Nang to Lloret de Mar. You should not have trouble finding flights to Lloret de Mar from Da Nang; the airport handles an average of 0 outbound flights to Lloret de Mar per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Da Nang airport to Lloret de Mar. It is only a 1.3 km journey to Da Nang (DAD) from Da Nang’s city center.