“Given current events in Iran, United has conducted a thorough safety and security review of our India service through Iranian airspace,” United said in a statement.
The US regulator said in a statement that “heightened military activities and increased political tensions” in the region could “place commercial flights at risk.”
The skies above the Gulf of Oman and the Persian Gulf are frequently traversed by commercial aircraft, and use of the airspace is especially heavy among aircraft bound for Doha, Dubai and Abu Dhabi.
Airlines that operate flights in the region said Friday that they would adjust their operations.
“The incident with the drone is reason not to fly over the Strait of Hormuz for the time being. This is a precautionary measure,” the Dutch airline said in a statement.
Etihad, which is based in Abu Dhabi, said that “contingency plans are in place” and that it would “decide what further action is required after carefully evaluating the FAA directive to US carriers.”
British Airways said it was following FAA guidance to avoid the area. It said flights continue to operate using alternative routes.