Transportation - Get In
Sana'a International Airport is the hub for Yemenia, Yemen's national airline. It is also served by other airlines, such as Emirates, Turkish Air, Royal Jordanian Airlines, Egypt Airlines, Syrian airlines, Qatar Airways, and Lufthansa. Also budget airlines, such as Air Arabia (www.airarabia.com) and FlyDubai now service Sana'a. There are two flights weekly from London-Heathrow. Emirates and Qatar Airways connect Sana'a to larger hubs in Doha and Dubai.
Yemen has a few bus companies. Sana'a is connected by all major cities (Aden, Ta'izz, Marib, Sayun, etc) via bus. Perhaps the best bus company in Yemen is the new-ish Raha (established in 2008). Raha buses are in good condition and fares are reasonable. The buses are still new. Note that travelers must obtain a travel permit (tasirih in Arabic) from the Ministry of Tourism before embarking on over-land adventures. Each town has a military checkpoint that will ask for a travel permit and will likely refuse travelers entry if they have forgotten to get one. Travel permits are issued free of charge. When applying, travelers should bring their passport, a list of places they are going to visit, and the time period for travel. Travelers should make many photocopies of their travel permit as each checkpoint may ask for a copy. Travelers should also have copies of the biographical information page (that contains their photo) of their passport handy. Often foreign passengers give a pile of travel permit copies to the bus driver so that he can provide them to officials at checkpoints. Travelers should let the bus driver or military personnel know of their nationality as they need to know. Note that there are also many traffic police checkpoints. They are not interested in your permit; only those with green uniforms and big guns are.
Transportation - Get Around
Sana'a is a big city which, in common with many other developing-world capitals, is spreading in all directions at once. Visitors will almost certainly have to use taxis or hired cars to get around, as the street maps often leave much to be desired.
There are many "Dabaabs" or mini vans that go on different routes around the city. They serve as public buses and are quite cheap. They have fixed routes and cost 15-30 riyals/ride.
Taxis to the airport from the centre should cost 1000 rials (August 2008). Be prepared to bargain with your taxi driver for a reasonable fare. Usually fares can be reduced by a third of the price after a bit of haggling.
Cars are used a lot but they are mostly 4x4s or pick up trucks. Drivers tend to use the horn excessively which is normal in this beautiful congested city.