Background: My girlfriend is on an F-1 visa for the United States, and is currently located in (and a citizen of) Hong Kong. She recently was in Hungary, and flew to Hong Kong via Helsinki. She has a direct flight from HKG to SFO scheduled to land in the United States over (but only an hour over) exactly 14 days since her plane departed Helsinki.
Question: In light of the language of the ban [1, Section 1] on non-citizens or non-permanent residents entering the United States who have been "physically present within the Schengen Area during the 14-day period preceding their entry or attempted entry into the United States," I believe that she shouldn't have problems with the entry in terms of the current COVID-19 related policies, but would like to make sure that I'm not missing anything. Should I be worried about this? Is there an interpretation of "physically present" that could include an international flight? Etc..