Recently, Andrew Sarangan posted:

That's interesting because I asked this same question to the customs
inspector and she said that we must land at the nearest airport of
entry after crossing the border.

Good luck setting those 737s down at KSKY! ;-)

Frank is right... you can land at any airport of entry that you choose,
given that you have to call ahead of time and arrive within +/- 15 minutes
of your flight plan.

Neil