The main formality is getting a visa, if you haven’t arranged one in advance. They are sold at a row of bank booths in every arrivals terminal. Pay cash and then present the sticker along with your arrival form and passport at the immigration desks. The procedure is typically speedy, no questions asked, though lines might be long if several flights have arrived at once.
By land or sea, the process is similar.
Regardless of where you enter, your passport must be valid for at least six months from your date of entry.
Israeli stamps in your passport (and Israeli passports, for that matter) present no problem, unlike in some other Middle Eastern countries.
Visas required for most foreigners. Available for most nationalities at airport on arrival, though check before departure.
Visa fees: Canada C$25 / Europe €25 / UK UK£15 / USA US$15
When buying visa at airport, payment is accepted in US dollars, UK£ and €.
Read more: Lonely Planet