Amtrak now runs between the US and Canada after a 3-year closure. Here's what it's like on the 12-hour train ride between NYC and Montreal.

Insider's reporter ahead of her 12-hour trip.Jordan Parker Erb/Insider

• After a three-year hiatus, Amtrak has reinstated train travel between the United States and Canada.
• Called the Adirondack line, the international train runs from New York City to Montreal.

In 2020, when the world stood still in the wake of the COVID-19 pandemic, so too did international travel. Airlines grounded flights, the US and Canada imposed travel restrictions, and Amtrak shuttered its cross-border train, the Adirondack line.

In April, a full three years later, Amtrak officially resumed train travel between Canada and the US, finally reinstating the Adirondack line between New York City and Montreal. A newfound fan of train travel myself, I booked a ticket in coach — this line's only seating option — to see what the international train is like.

For $140 roundtrip, I spent nearly 12 hours on the Adirondack line, which passes through the Hudson Valley and hugs the border of Vermont until it crosses into Québec. From start to finish, here's what the trip is like.