My girlfriend wants to enter the US as a Chinese citizen on a F1 visa, back to university. What are the best ways to do this? It seems like she will need to quarantine somewhere for 14 days, what are the easiest/most cost-effective choices for countries? She ideally do not want to apply for a travel Visa. Thank you!
enter the US as a Chinese citizen on a F1 visa
That depends on where she is currently located. https://www.iatatravelcentre.com/world.php -> USA:
students with an F-1 or M-1 visa and their F-2 and M-2 dependents [are allowed] if they arrive from or have been in Ireland (Rep.), United Kingdom or Schengen Member States in the past 14 days.
I'm confused what "arrive from country X" means. According to an English dictionary, this means that it doesn't matter how much time one spent in country C. But this contracts common sense. As a result, I don't know whether she can fly China -> Schengen/UK/IE -> US without staying in Schengen/UK/IE for over 14 days. My guess is no but worth calling some Chinese embassy in the US to confirm, because the information on IATA is ambiguous.