As tensions between the United States and Iran disrupt air travel across parts of the Middle East, Saudi Arabia’s capital is emerging as an increasingly important gateway for passengers trying to leave the region.With some flight paths disrupted and parts of the region’s airspace closed, travelers are increasingly looking for alternative departure points instead of the usual hubs in Dubai and Qatar.Dubai International Airport and Doha’s Hamad International Airport in recent days saw halls far quieter than usual. The airports, typically some of the world’s busiest aviation hubs, have seen clusters of stranded passengers scrambling to rebook flights or find alternative routes out of the Gulf.For all the latest headlines, follow our Google News channel online or via the app.For many, that alternative lies several hundred kilometers away in Riyadh.Saudi Arabia’s capital has begun to play a larger role as a transit point, with passengers traveling across the Gulf to take advantage of routes