Dallas ISD 2025–2026 School Calendar: Key Dates & Holidays

Planning ahead for the school year is essential for teachers, substitutes, and families. Dallas ISD has released its 2025–2026 academic calendar, and we’ve broken down the most important dates, holidays, and breaks so you can stay organized.

Whether you’re a parent arranging vacations, a teacher mapping out lesson plans, or a substitute looking to maximize your availability, here are the important dates on this year's calendar.

Dallas ISD First Day of School 2025-2026

• Tuesday, August 12, 2025

  Students across Dallas ISD will return to the classroom to begin the new year.

Major Holidays & Breaks: Dallas ISD Calendar Breakdown

• Labor Day: Monday, September 1, 2025

• Fair Days (Fall Break): Thursday–Friday, October 9–10, 2025

• Thanksgiving Break: Monday–Friday, November 24–28, 2025

• Winter Break: Monday, December 22, 2025 – Friday, January 2, 2026

• Martin Luther King Jr. Day: Monday, January 19, 2026

• Presidents’ Day: Monday, February 16, 2026

• Spring Break: Monday–Friday, March 16–20, 2026

• Memorial Day: Monday, May 25, 2026

• Juneteenth (Observed): Friday, June 19, 2026

Dallas ISD Parent–Teacher Conference Days

Dallas ISD schedules separate conference days for different grade levels:

• Fall Conferences

  
  

  • High School: Monday, October 20, 2025

  • Middle School: Tuesday, October 21, 2025

  • Elementary School: Thursday, October 23, 2025

  
  

• Spring Conferences

  
  

  • High School: Monday, January 26, 2026

  • Middle School: Tuesday, January 27, 2026

  • Elementary School: Thursday, January 29, 2026

  
  

Dallas ISD Early Release Days

• Secondary Schools: Thursday–Friday, December 17–18, 2025

• All Schools: Saturday, December 19, 2025

  
  

These shortened days often create additional opportunities for substitutes to step in and support classrooms.

Weather Makeup Days for Dallas ISD

Dallas ISD has designated the following calendar days as potential makeup days in case of inclement weather:

• Monday, April 6, 2026

• Monday, May 4, 2026

Last Day of Class for Dallas ISD

• Thursday, May 27, 2026

  The official last day of school for Dallas ISD students.

Stay Prepared with HelloSubs

At HelloSubs, we make it easy for substitute teachers to find opportunities across Dallas and beyond. By staying on top of the school calendar, you can plan ahead and ensure you’re ready when schools need you most.

👉 Apply today to join HelloSubs as a substitute teacher and start connecting with schools in Dallas.

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Disclaimer: The dates in this post are based on the Dallas ISD 2025–2026 school calendar available at the time of writing. School districts may update calendars throughout the year, so we recommend checking the Dallas ISD calendar page for the most up-to-date information.