It's all here - https://support.kraken.com/hc/en-us/articles/360000423043-Fiat-currency-withdrawal-options-fees-minimums-and-processing-times-

But I'm not sure how good their USD banking is compared to EUR. They seem to have used piece of shit third part payment processors in the past who've caused users problems. I'm not sure what their current set up is at the moment.