1A polite way of saying one is about to go out; often used as a greeting, as in "Are you heading out?"
お出かけですか？いってらっしゃい。
Are you heading out? Have a good trip!
もうすぐお出かけの時間ですよ。
It's almost time to head out.
お客様、本日はどちらへお出かけですか。
Excuse me, where are you headed today?
2A casual outing or trip — a short, everyday excursion rather than a long journey.
天気がいいので、久しぶりに家族でお出かけした。
The weather was nice, so we went out as a family for the first time in a while.
週末のお出かけには何を着ていこうか迷っている。
I'm not sure what to wear for the weekend outing.
雨の日のお出かけには、傘とレインコートが必需品だ。
An umbrella and raincoat are essentials for going out on a rainy day.