The US Federal Aviation Administration (FAA) has issued a Notice To Airmen (NOTAM) barring all airlines, whether US or foreign, from carrying out flights between the United States and Turkey until September 1.
The move comes in the wake of this past weekend's failed military coup which saw sections of the Turkish armed forces attempting to overthrow the government of president Recep Tayyip Erdoğan.
As it stands, all airline carriers, regardless of country of registry, are prohibited from flying into the United States from Turkey either directly or via third country.
While no US airlines currently operate any flights between the two countries, Turkish Airlines (TK, Istanbul Airport) does and is severely affected by the ban.
The ch-aviation route database shows Turkish serves Atlanta Hartsfield Jackson, Boston, Chicago O'Hare, Houston Intercontinental, Los Angeles International, Miami International, New York JFK, San Francisco, and Washington Dulles from its Istanbul Atatürk hub.
The FAA will review the status-quo no later than August 15.