SAPTCO operates cross-border bus services to most of Saudi Arabia's neighbors and even beyond to e.g. Cairo.
Probably the most popular service is between Dammam/Khobar and Bahrain, operated by the separate Saudi-Bahraini Transport Company (SABTCO) . There are five services daily at a cost of SR50/BD5 and the trip across the King Fahd Causeway takes around two hours on a good day; see Bahrain for details.
The Most Frequently Asked Travel Questions about Saudi Arabia
Where To Stay & Best Hotels in Saudi Arabia - updated Apr 2024
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Saudi Arabia Travel Guide from Wikitravel. Many thanks to all Wikitravel contributors. Text is available under Creative Commons Attribution-ShareAlike 3.0, images are available under various licenses, see each image for details.