I’m going to the US for a vacation in July - August 10th. I also am starting a course on September 10 and I will have an F1 visa. Can I enter the USA in July on a ESTA if I have the F1 visa already in my passport and then leave the states 30 days before the programme starts and enter back in on the F1 Visa? Or would it be best to come back to my country and apply for the visa after my vacation?

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