Sea-tac Occupational Skills Center - School District Calendar - Highline School District - 2025-2026

This Highline School District instructional academic school calendar is extremely important as it keeps you informed of Sea-tac Occupational Skills Center grading periods, early dismissal dates, staff development days and holidays for the Sea-tac Occupational Skills Center calendar school year 2025-2026. As a parent and or student, you will find yourself needing this information on a regular basis, so please "like" and bookmark this page in a visible location within your favorite browser. The legend for this Highline School District 2024-2025 calendar is at the bottom of the page. If you are browsing on your PC there is another copy of the legend in the right hand column.