"Commercial competition in the aviation industry has always been fierce, and regional competition is heating up. Some turbulence in regional relations is on the horizon," said Robert Mogielnicki, resident scholar at the Arab Gulf States Institute.
Dubai, the world's largest international air travel hub, has announced a five-year plan to grow air and shipping routes by 50% and double tourism capacity over the next two decades.
Any airline requires substantial start-up capital and experts warn that if Saudi Arabia's ambition is to compete on transit flights it may have to contend with years of losses.
Emirates reported a record $5.5 billion annual loss last month with the pandemic forcing Dubai to step in with $3.1 billion in state support.