How long does it take to walk across the Rainbow Bridge?

About 15 to 20 minutes if you’re walking at a normal pace and don’t stop for photos. It’s only about a quarter-mile long, so it’s a quick walk, but the lines at customs on both sides can easily add 30-60 minutes, especially on weekends or holidays. If you’re just going to the US side for dinner or shopping, don’t bother—the bridge is mostly for the view and the novelty of crossing into another country.

Honestly, unless you need to get to the American side for a specific reason (like the Seneca Casino or a cheap hotel), I’d skip the walk. The view from the bridge is nice, but you get a better, free view from the Niagara Parkway on the Canadian side. If you do go, bring your passport, and expect a $1 USD toll to walk back into Canada (cash only, no change given). No, you can’t just turn around—you have to go through customs on the other side first.