window seat
US /ˈwɪn.doʊ ˌsiːt/
UK /ˈwɪn.doʊ ˌsiːt/

1.
a seat next to a window, especially in an airplane or train
:
•
I prefer a window seat when I travel by plane.
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She always tries to book a window seat on the train to enjoy the view.
2.
a bench or seat built into a bay window or alcove
:
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The cozy living room had a beautiful window seat with cushions.
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She spent hours reading on the built-in window seat.