The Saudi Arabia airport attacks have made Middle East travel more unpredictable. Here's what to know.

Source: Business Insider

Riyadh's airport is closed until at least Saturday. Bernd von Jutrczenka/picture alliance via Getty ImagesRiyadh airport, one of the busiest in the Middle East, has been closed for a week after missile attacks. The US State Department has told Americans to reconsider travel to Saudi Arabia.