How to Say "flight path" in Spanish
The Spanish word for “flight path” is “trayectoria” — B1 level. This is a very common word in everyday Spanish.

Examples
El portero calculó mal la trayectoria del balón.
The goalkeeper miscalculated the ball's path.
Los científicos estudian la trayectoria del asteroide.
The scientists are studying the asteroid's trajectory.
El viento puede cambiar la trayectoria de la flecha.
The wind can change the arrow's flight path.
Always Feminine
Even though it involves movement which might feel 'active,' this word is always feminine: 'la trayectoria.' Make sure your adjectives match: 'una trayectoria larga.'
Trayecto vs. Trayectoria
A 'trayecto' is a specific trip or stretch of road between points A and B. 'Trayectoria' is the actual curved or straight line something draws through the air as it moves.
Confusing with 'Trip'
Mistake: “El trayectoria de Madrid a Barcelona es corto.”
Correction: El trayecto de Madrid a Barcelona es corto. Use 'trayecto' for the distance or trip, and 'trayectoria' for the physical curve of movement.
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