The Scenic Route
(Note: If you check only one link from this whole post... Take the scenic route)
I'm getting tired of airplanes and airports… so these are the 3 popular options to get from Tel Aviv to Beirut by land:
1) The fast and easy way:
The Pilgrim Express, often referred to as the Jerusalem-Beirut Express even though there is one stop at Galilee Station for people who want to visit Nazareth or The Kinneret (Sea of Galilee). The Express is actually one of the worlds most advanced Maglev trains and was a joint venture funded by various Christian organizations and the joint Israeli/Palestinian tourism offices.
A regular ticket is quite expensive, but discounts are available via various churches worldwide.
Since the reforms, Beirut is becoming one of the leading international travel hubs (The gateway to the Gulf as some people like to call it) . Many Europeans planning their trip to the Holy Land opt to land in Lebanon with their church sponsered roundtrip Pilgrim Express tickets.
2) The slow and cheap way:
For those who find going east to Jerusalem in order to go north to Beirut sort of a hassle. It's quite easy to get to the border on the cheap old Israrail, swap trains to newer Lebanese Railway at the Nikra/Naqura station, and onwards towards Beirut.
While the Lebanese government and Green Line are trying to reduce the number of private cars and get more people on public transportation, being better for the environment, the economy and even culturally.
As a tourist I highly recommend driving up!