US Treasury Secretary Scott Bessent has warned that Iranian airlines will face global shutdowns beginning September 23, as Washington ramps up sanctions to tighten financial pressure on Tehran.

Speaking in an interview with CNBC, Bessent said, “All the Iranian airlines will be shut down around the world,” underscoring the administration’s determination to choke off Iran’s international operations. The move comes as part of what he previously described as an “economic D‑Day” strategy, aimed at crippling Tehran’s access to global markets.

The sanctions are expected to severely impact Iran’s aviation sector, restricting its ability to operate flights internationally and further isolating the country amid ongoing tensions with the United States. Analysts note that the measure could disrupt travel and trade links, adding to the economic strain already faced by Iran.

The announcement reflects the Trump administration’s broader policy of escalating economic and diplomatic pressure, with the aviation industry now becoming a key target in Washington’s sanctions campaign.