check into

Idioms  

1. Investigate something, as in I don't know when they open but I'll check into it . Also see check out .

2. Register one's arrival at, as in She was about to check into the hospital . Also see check in , def. 1.

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Example Sentences

I request one every time I check into a hotel, with mixed success.

From The Wall Street Journal • Apr. 15, 2026

When you check into your journey, you may not be able to board without a valid ETA.

From BBC • Feb. 24, 2026

However, the expiration policy requires users to check into the Airbnb within seven days, not just book within seven days.

From Los Angeles Times • Jan. 28, 2025

Nowadays you can check into a 17th-century former soap factory on the French Riviera, or part of the Old War Office in London, or a Renaissance-palazzo-style building that was once a bank in New York.

From New York Times • Mar. 27, 2024

Some days I would check into homeroom; other days I’d head directly back to the train and return to the neighborhood, where I’d meet up with one of the guys who had a similar arrangement.

From "The Other Wes Moore: One Name, Two Fates" by Wes Moore