Planning a vacation has never been so complicated. With the delta variant spreading around the world, travelers are forced to navigate an ever-changing set of rules. Here’s what to know before you fly, take a cruise or check into a hotel.

This article was updated on September 8, 2021.

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one are the days of planning a carefree getaway on the fly. Nearly two years into the pandemic, it’s now painfully clear that we’re going to be dealing with Covid-related travel restrictions for months and years to come. So it’s essential to do some basic pre-trip homework to assess not only the risk of traveling but what, if any, protocols are in place—not just in a specific destination but along the entire journey.

At the same time, a pattern is emerging, where travel is easier and less restrictive for those who are fully vaccinated. In some major American