The majority of tourists come by aircraft, but entrance from Georgia and Iran is not an issue. Borders with Azerbaijan and Turkey have been closed.
From 1 January 2013, EU and Schengen area passport holders will be among the fortunate few (CIS, Georgia, and Argentina who will not need a visa for tourist trips of up to 90 days.
Visa on arrival
Except for a small number of mostly African non-Westerners (see below), 21-day tourist visas are available upon arrival at Yerevan International Airport and at land borders (3,000 dram for 21 days; 15,000 dram for 120 days).
Before customs and immigration, there is money exchange and an ATM at Yerevan International Airport. There is a high fee of about US$10 for changing traveler’s checks, which are not often used in Armenia.
Border guards will gladly accept foreign currencies at land crossings, but only at pitiful exchange rates. Try to get some Armenian dram before crossing the border. Some visitors have been charged as much as US$20 (about three times the official fee), however as of August 2015, the Bagratashen-Sadakhlo border crossing charges US$10 for a 21-day visa. Border guards and customs officials will not be able to exchange a $100 bill (about the average Armenian monthly income), so don’t even attempt.
Visa in advance
The e-Visa is a somewhat more costly (at least officially) alternative (US$10 for 21 days; US$40 for 120 days). These e-Visas are entirely online and may be granted in as little as two business days. They enable entrance into Armenia via Yerevan Airport and the following land border crossings: Ayrum railway station, Bavra, Bagratashen, and Gogavan from Georgia; and Meghri from Iran.
A 21-day visa purchased in advance at an embassy (rather than online) costs $US8.
An Armenian visa also allows you to remain in Russia for up to 5 days: the two countries have an agreement to make land transit easier for tourists. To be cautious, verify with a Russian embassy before purchasing a ticket.
Those unfortunate few who are unable to get a visa on arrival must apply for a visa at an embassy or consulate prior to arrival and need an invitation.