A taxi to the airport is considerably more expensive
It appears to be a regulation that taxis to and from the airport must be prohibitively expensive in Lebanon. Even if the airport is only a 20-minute drive from downtown. When taking a cab from Beirut airport to downtown Beirut, the fixed pricing appears to be $27 at the present. Expect to pay $23 to get from downtown Beirut to the airport. Your hotel can easily arrange for a taxi, which will be waiting for you with a sign bearing your name.
Allo Taxi is frequently utilized for this service, although you can also order them yourself. You can request a cab from the airport to downtown Beirut for $23 if you download their apps. Returning will cost 25.000 LL or 16-17$, saving you a few dollars for the same service. But don't utilize them to move around Beirut; a single ride would cost you around $10, when a shared service taxi will cost you no more than $1.50.