Qantas said it would reroute its London flights to avoid the Strait of Hormuz and Gulf of Oman. British Airways, KLM, Malaysia Airlines and Singapore Airlines said their flights would avoid the strait. Lufthansa said it would avoid both the Strait of Hormuz and the Gulf of Oman, as well as nearby land. However, it said it would continue its flights to Tehran.
Source: Los Angeles Times June 21, 2019 10:18 UTC