Planning for the next school year starts now. For families in the Dallas Independent School District, knowing the official Dallas ISD Calendar for 2026-2027 is essential for scheduling vacations, appointments, and childcare. This guide breaks down everything you need to know about the Dallas ISD Calendar Dates, from the First Day of School to the Last Day of School, including Major Holidays, breaks, and other important events.
Whether you need a Printable version to hang on the fridge or a download of the PDF, we’ve got the information you need to navigate the academic year smoothly.
Dallas ISD Calendar 2026-2027: An Overview
The Dallas ISD School Calendar for the 2026-2027 academic year follows a traditional structure with two main tracks. Most students will follow the Traditional Calendar, which runs from August to May. However, a number of schools operate on an ADSY (Additional Days School Year) calendar, which begins earlier.
Below is a comprehensive look at the key dates for the upcoming school year. These dates were sourced directly from the official district calendar.
Important Dates at a Glance
| Date | Event |
|---|---|
| Tuesday, August 11, 2026 | First Day of School (Traditional Calendar) |
| Monday, September 7, 2026 | Labor Day (Student & Staff Holiday) |
| Thursday, October 8 – Friday, October 9, 2026 | Fall Break |
| Monday, November 23 – Friday, November 27, 2026 | Thanksgiving Break |
| Monday, December 21, 2026 – Monday, January 4, 2027 | Winter Break |
| Monday, January 18, 2027 | Martin Luther King Jr. Day |
| Monday, February 15, 2027 | Presidents Day |
| Monday, March 15 – Friday, March 19, 2027 | Spring Break |
| Wednesday, May 26, 2027 | Last Day of School |
Understanding the Two Calendars: Traditional vs. ADSY
One of the most important things to understand about the Dallas ISD Calendar 2026-2027 is that there are two official versions.
- Traditional Calendar: This is the standard calendar for most campuses. Classes begin on Tuesday, August 11, 2026.
- ADSY Calendar: The “Additional Days School Year” calendar applies to select schools. These campuses will start the year significantly earlier to provide extra instructional time. For the 2026-2027 year, the first day for these schools is Tuesday, July 28, 2026.
While the start dates differ, both calendars share the same Last Day of School (Wednesday, May 26, 2027) and the same break schedules.
Dallas ISD Calendar 2026-2027: Grading Periods
The academic year is divided into four grading periods. Knowing these dates helps you track progress and plan for report cards.
- First Nine Weeks: Tuesday, August 11, 2026 – Friday, October 9, 2026
- Second Nine Weeks: Monday, October 12, 2026 – Friday, December 18, 2026
- Third Nine Weeks: Wednesday, January 6, 2027 – Friday, March 5, 2027
- Fourth Nine Weeks: Monday, March 8, 2027 – Wednesday, May 26, 2027
Teacher Work Days & Student Holidays
The calendar also includes several days when students are off but staff may be working. These Teacher Work Days and professional development days are scheduled throughout the year.
- Student Holidays / Staff Development: August 3-6, 2026; October 12, 2026; November 3, 2026
- Teacher Workdays: The calendar includes dedicated workdays on August 3, 7, and 10, 2026, and May 27, 2027
Early Release Days
Mark your calendars for these Early Release Days, when students are dismissed early. This is crucial for parents who need to arrange transportation or childcare.
- December 2026: Early release for secondary campuses on December 16-17, and early release for all schools on December 18, 2026
- May 2027: Early release for secondary campuses on May 24-25, and early release for all schools on the last day of school, May 26, 2027
Download a Printable Dallas ISD Calendar
Having a Printable Dallas ISD Calendar on hand is a great way to keep the whole family organized. You can download the official district calendar in PDF format directly from the Dallas ISD website. This is your go-to resource for confirming dates and planning ahead.
For the most current information, please refer to the official source:
Frequently Asked Questions
Spring Break is scheduled for Monday, March 15, 2027, through Friday, March 19, 2027.
The Last Day of School for all Dallas ISD students is Wednesday, May 26, 2027.
Yes, there are multiple Early Release Days. Key dates include December 18, 2026, and May 26, 2027 (all schools), with secondary-only early releases on December 16-17, 2026, and May 24-25, 2027.
Yes, the Dallas ISD Calendar includes a two-day Fall Break on Thursday, October 8, and Friday, October 9, 2026.
ADSY stands for “Additional Days School Year.” It is an alternative calendar used by select Dallas ISD campuses that start earlier and add extra instructional days and Saturdays to the school year.
Staying informed about the Dallas ISD Calendar 2026-2027 is the best way to ensure a smooth and successful school year. We recommend bookmarking this page and the official district website as your go-to sources for all academic calendar updates.