If you have a student in Alief Independent School District, this is your go-to page for the complete 2026–2027 school year calendar. We verified this directly from the Alief ISD official website and board-approved documents. This guide covers every key date — from the first day of school on August 12, 2026, all the way to the last bell on May 27, 2027. Whether you are a parent planning a family vacation, a teacher preparing your classroom, or a student counting down to spring break, bookmark this page and come back whenever you need a quick answer.
Alief ISD serves students across the southwest Houston area in Harris County, Texas. The district is one of the most culturally diverse in the entire state, and the 2026–2027 calendar reflects a well-structured academic year with clear grading periods, meaningful breaks, and professional development time built in for staff. All calendar dates presented in this guide come directly from the official board-approved Alief ISD calendar. Planning tips and additional information are provided as editorial guidance.
At-a-Glance: Alief ISD 2026-27 Key Summary
Here is a quick snapshot of the most important dates for the Alief ISD Calendar 26-27 year so you can plan at a glance before diving into the full details.
| Detail | Information |
|---|---|
| First Day of School | August 12, 2026 |
| Last Day of School | May 27, 2027 |
| Total Instructional Days | 176 Days |
| Fall Break | October 7–9, 2026 |
| Thanksgiving Break | November 23–27, 2026 |
| Winter Break | December 21, 2026 – January 1, 2027 |
| Spring Break | March 8–12, 2027 |
| Next Upcoming Holiday | Labor Day — September 7, 2026 |
Alief ISD Grading Periods 2026-2027
The academic year is divided into four marking periods. Here is a breakdown of each grading period, its dates, and total instructional days.
| Grading Period | Start Date | End Date | Total Days |
|---|---|---|---|
| MP1 (Marking Period 1) | August 12, 2026 | October 6, 2026 | 39 Days |
| MP2 (Marking Period 2) | October 13, 2026 | December 18, 2026 | 44 Days |
| MP3 (Marking Period 3) | January 5, 2027 | March 5, 2027 | 42 Days |
| MP4 (Marking Period 4) | March 16, 2027 | May 27, 2027 | 51 Days |
| Full Year Total | August 12, 2026 | May 27, 2027 | 176 Days |
Complete Key Dates Table — Alief ISD Calendar 2026-2027
This is the full month-by-month breakdown of all important dates in the AISD Calendar 26 27. Use this as your master reference for the entire school year.
| Event | Start Date | End Date | Notes |
|---|---|---|---|
| Professional Days (Staff Only) | August 3, 2026 | August 11, 2026 | No students. Teachers preparing classrooms. |
| First Day of School | August 12, 2026 | — | All students report. MP1 begins. |
| Student/Staff Holiday | September 7, 2026 | — | Labor Day. District closed. |
| Fall Break | October 7, 2026 | October 9, 2026 | 3-day break. Schools closed. |
| Student Holiday | October 12, 2026 | — | No students. Staff workday possible. |
| MP1 Ends | October 6, 2026 | — | End of first grading period. |
| MP2 Begins | October 13, 2026 | — | Second grading period starts. |
| Thanksgiving Break | November 23, 2026 | November 27, 2026 | Full week off. District closed. |
| MP2 Ends | December 18, 2026 | — | End of second grading period. |
| Winter Break | December 21, 2026 | January 1, 2027 | 12-day break. District closed. |
| Student Holiday | January 4, 2027 | — | Schools reopen for staff only. |
| MP3 Begins | January 5, 2027 | — | Students return from winter break. |
| Student/Staff Holiday | January 18, 2027 | — | MLK Day. District closed. |
| Student Holiday | February 15, 2027 | — | No school for students. |
| MP3 Ends | March 5, 2027 | — | End of third grading period. |
| Spring Break | March 8, 2027 | March 12, 2027 | Full week. District closed. |
| Student Holiday | March 15, 2027 | — | Schools return for staff. Students off. |
| MP4 Begins | March 16, 2027 | — | Final grading period starts. |
| Student/Staff Holiday | March 26, 2027 | — | District closed. |
| Student Holiday | May 3, 2027 | — | No school for students. |
| Last Day of School | May 27, 2027 | — | MP4 ends. Students dismissed. |
| Professional Day | May 28, 2027 | — | Staff only. No students. |
Always double-check and verify your calendar dates directly from the Alief ISD official website before making travel or childcare arrangements. Dates are subject to change based on emergency closures or board decisions.
Download the Official Alief ISD 2026-2027 Calendar PDF
You can download or view the board-approved Alief ISD Calendar for 2026–2027 directly from the official source using the link below. This is the same PDF approved by the AISD board and posted on their official document platform.
Download Official AISD Calendar PDF (Board Approved) Printable Calendar Download
We recommend downloading this PDF and saving it on your phone or printing it for your refrigerator. It is also a great idea to add key dates to your Google Calendar or Apple Calendar right now so you do not get caught off guard.
About Alief ISD Schools
Alief Independent School District is located in the southwest corner of Houston, Texas, within Harris County. It is one of the most ethnically and linguistically diverse school districts in the entire state of Texas, serving students who collectively speak over 70 languages at home. The district operates more than 50 campuses across its service area, including elementary, middle, and high schools, and enrolls approximately 40,000 students. Alief ISD is known for its strong bilingual education programs, career and technical education pathways, and fine arts offerings. The district takes pride in its deep community roots and its commitment to serving first-generation college-bound students.
See also: Garland ISD Calendar 2026-2027 | Printable PDF
What Parents in Harris County Should Know About the 2026-27 Calendar
A few things stand out when you look closely at this year’s Alief ISD calendar.
First, the first day of school is August 12, 2026, which is a fairly early start date. If your child is in a summer camp or program that runs through mid-August, you will want to plan wrap-up dates carefully.
Second, notice that Alief ISD has built a Fall Break (October 7–9) into the calendar this year. Not all Houston-area districts include a dedicated fall break, so this is a nice breather between the start of school and Thanksgiving.
Third, winter break runs from December 21, 2026, through January 1, 2027 — a solid stretch that gives families flexibility for holiday travel without burning personal days.
Finally, spring break for Alief ISD is March 8–12, 2027. Parents should note that January 4 is listed as a student holiday, meaning students actually return to class on January 5. Plan pick-up and drop-off arrangements accordingly that week.
How Alief ISD Compares to Neighboring Districts
When comparing the Alief ISD Calendar 26-27 first day of school (August 12) to neighboring districts in the Houston metro, it falls in line with what most Harris County families expect. Houston ISD and Katy ISD typically also begin in mid-August, making back-to-school shopping season the same across most of the region. Fort Bend ISD, just to the south, often has similar start dates as well. However, break structures can differ — not every neighboring district builds in a formal Fall Break the way Alief ISD does in 2026-27. Alief’s spring break (March 8–12) is also aligned closely with most Harris County districts, which makes coordinating travel with families whose children attend different districts a bit easier than in years past.
See also: What Happens If School Is Cancelled Due to Weather?
Planning a Family Trip? Best Times to Travel in Harris County
If you are mapping out vacations around the Alief ISD 2026-27 calendar, here are your best windows:
Thanksgiving Break (November 23–27) is five full days, giving you a solid long weekend for domestic travel. Flights and hotels book fast for this window, so plan early.
Winter Break (December 21, 2026 – January 1, 2027) is your longest stretch — nearly 12 days. This is the best opportunity for international travel or extended family visits. Keep in mind that January 4 is a student holiday and classes resume January 5, so you can squeeze in a little extra time if needed.
Spring Break (March 8–12, 2027) is five school-free days. This is the classic “family beach trip” window for Texas families. South Padre Island, Galveston, and Cancun are all popular choices from the Houston area. Book at least 2–3 months ahead.
School Closings History in Harris County
Harris County, which includes Alief ISD, sits in a Gulf Coast climate zone that brings occasional threats from tropical weather and rare winter ice storms. Alief ISD, like most Houston-area districts, has historically built a small buffer of emergency days into the school calendar to account for weather-related closures, particularly following the disruptions brought by major storm seasons in past years. When significant closures occur, Alief ISD communicates through its official website, the ParentSquare notification system, and local media. It is always a good idea to follow the district’s official social media channels during weather events so you are never the last to know.
Monthly Snapshot: What Happens When
August 2026
| Date | Event |
|---|---|
| August 3–11 | Professional Days (Staff Only) |
| August 12 | First Day of School / MP1 Begins |
September 2026
| Date | Event |
|---|---|
| September 7 | Student/Staff Holiday (Labor Day) |
October 2026
| Date | Event |
|---|---|
| October 6 | MP1 Ends |
| October 7–9 | Fall Break |
| October 12 | Student Holiday |
| October 13 | MP2 Begins |
November 2026
| Date | Event |
|---|---|
| November 23–27 | Thanksgiving Break |
December 2026
| Date | Event |
|---|---|
| December 18 | MP2 Ends |
| December 21 | Winter Break Begins |
January 2027
| Date | Event |
|---|---|
| January 1 | Winter Break Ends |
| January 4 | Student Holiday |
| January 5 | MP3 Begins / Students Return |
| January 18 | Student/Staff Holiday (MLK Day) |
February 2027
| Date | Event |
|---|---|
| February 15 | Student Holiday |
March 2027
| Date | Event |
|---|---|
| March 5 | MP3 Ends |
| March 8–12 | Spring Break (Alief ISD Spring Break 2027) |
| March 15 | Student Holiday |
| March 16 | MP4 Begins |
| March 26 | Student/Staff Holiday |
April 2027
| Date | Event |
|---|---|
| No scheduled holidays listed | — |
May 2027
| Date | Event |
|---|---|
| May 3 | Student Holiday |
| May 27 | Last Day of School / MP4 Ends |
| May 28 | Professional Day (Staff Only) |
FAQs
Q: When does school start in Alief ISD for 2026-2027?
The first day of school for Alief ISD students is August 12, 2026. Staff professional days begin earlier, running from August 3 through August 11, but students do not report until August 12. Make sure your child’s school supplies, uniforms, and transportation plans are sorted before that date.
Q: When is the last day of school for Alief ISD in 2027?
The last day of school for Alief ISD students in the 2026-2027 academic year is May 27, 2027. This marks the end of Marking Period 4. Staff will have one additional professional day on May 28, but students are done after May 27.
Q: When is Alief ISD spring break in 2027?
Alief ISD spring break 2027 runs from Monday, March 8 through Friday, March 12, 2027. That is a full five-day break. Students will also have March 15 off as a student holiday, meaning they do not return to class until Tuesday, March 16 — which is also the first day of Marking Period 4.
Q: How many school days does Alief ISD have in 2026-2027?
Based on the four marking periods, Alief ISD has a total of 176 instructional days in the 2026-2027 school year. That breaks down as follows: MP1 has 39 days, MP2 has 44 days, MP3 has 42 days, and MP4 has 51 days. This meets standard Texas Education Agency requirements.
Q: Is the AISD Calendar 26-27 available as a printable PDF? Y
Yes. The board-approved Alief ISD printable calendar for 2026-27 is available as an official PDF. You can download it using the link we included near the top of this page. It is the same document approved by the district board and is the most reliable version to save or print for home use.
Q: Are there any school closings or delays I should watch for?
There are no pre-scheduled additional closures beyond what is listed in this calendar. However, Alief ISD, like all Houston-area districts, may announce emergency closings due to severe weather, tropical storms, or other unforeseen events. Always check the Alief ISD official website or ParentSquare app for the most up-to-date closing and delay information.
Closing: Stay Ahead of the School Year
The 2026-2027 school year is a full, well-organized year for Alief ISD families. With 176 instructional days, a meaningful fall break, a generous winter break, and a full spring break week in March, there is plenty to plan around. Bookmark this page — we update it whenever the district releases changes. For real-time closings, delays, or emergency announcements, always check the official Alief ISD website and sign up for ParentSquare notifications if you have not already. Come back in February when Alief ISD spring break 2027 searches peak and families start locking in travel plans. Sharing this page with other parents in your school’s group chat is a simple way to make sure everyone stays on the same page all year long.
The PublicSchoolsCalendar.com Team compiles and verifies public school calendar data for districts across all 50 US states, drawing on official district websites and published family calendars to keep every page accurate and up to date.
