SpiceJet spokesperson said, “Flight operations to the Middle East have now returned to normal. We’re operating smoothly and even resumed our flights from the 25th.”

Airports have been packed with thousands of stranded travelers following airspace closures and widespread flight cancellations and delays. Here's what to know.

Some U.S. and other international airlines are keeping a halt on flights to major Middle Eastern airports as global carriers scramble to figure out whether to continue flying to the region amid intensifying conflict between Israel and Iran and military intervention by the U.