(NEW YORK) — Millions of Americans are gearing up to head to the airport or hit the highway for summer vacations.

Here’s what you need to know before you travel:

Air travel

The Federal Aviation Administration said it predicts over 50,000 flights (including cargo flights) per day this summer, citing a 4% increase of summer flight schedules compared to last year.

United Airlines is projecting a record-breaking summer with about 50 million passengers from June to August — about 3 million more than last year.

American Airlines said it expects to operate 5% more flights this summer than it did last year. The airline said nearly five flights will depart every minute over the course of the summer.

American Airlines forecasts its busiest day to be Sunday, July 6, with nearly 6,800 flights.

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