Please note the last paragraph in the text that
84fiero quoted.
”
Please note, if you planned an itinerary incorporating one or more overnight stays en route to the US, you will need to make sure your test is not expired before your flight that will enter the US. You do not need to be retested if the itinerary requires an overnight connection because of limitations in flight availability.”
Since your overnight stop in Munich is voluntary, i.e. there are itineraries that would allow you to fly IST/AYT-MUC-SFO on November 18th without any overnight connection, the 3 days count backwards from your MUC-SFO flight on November 18th. So you’ll need to get tested no earlier than November 15th.
As a side note, ExpertFlyer doesn’t show any MUC-SFO flight leaving at 12:30 pm on November 18th, so you may want to check your schedule…
Last edited by WindowSeatFlyer; Nov 11, 2021 at 2:30 pm