、。
Tomorrow night, I'm going to Narita Airport.
Literal
Tomorrow-night [topic-は], Narita Airport [to-に] go.
明夜 (みょうや, 'tomorrow night') is a somewhat formal/literary reading — the everyday form would be 明日の夜. 成田空港 is Japan's primary international airport. Dictionary form 行く at the end signals planned future action in casual speech. A simple, clean sentence.