"Big Gate News" reports that on April 18 — The Iranian Aviation Industry Association announced on April 18 that ticket sales will be suspended nationwide until airlines obtain the necessary permits from the Civil Aviation Organization. The association's secretary stated that ticket sales are not permitted under current circumstances, and airlines must seek approval for each flight (whether domestic or international) before resuming operations. Issuance of tickets depends on approval from the Civil Aviation Organization. The secretary also pointed out that some websites currently display tickets available for purchase, but transactions cannot be completed, preventing users from finalizing their bookings. Previously, on April 18, the Civil Aviation Organization announced it would reopen parts of Iran's airspace and multiple airports.