Fall Semester | September 3 - December 20 |
| Beginning of Classes (including mandatory orientation) | September 3 |
| Fall Break | October 28 - November 3 |
| End of Semester (including exams) | December 20 |
Spring Semester | January 6 – June 12 |
| Orientation for new exchange students | January 6 - 10 |
| Beginning of Classes | January 13 |
| Winter Break | February 17 - February 23 |
| Spring Break | April 13 - April 19 |
| End of Semester (including exams) | June 12 |
Like most stores and services in France, ISA Lille offices are closed on national bank holidays. Some holidays are celebrated on the same date every year, and others change based on the liturgical calendar. Please note the dates below for the mentioned calendar year.
| January 1 | New Year's Day (Jour de l'An) |
| April 22 | Easter Monday (Lundi de Pâques) |
| May 1 | Labor Day (Fête du Travail) |
| May 8 | Victory in Europe Day (Fête de la Victoire) |
| May 30 | Ascension Day (l'Ascension) |
| June 10 | Whit Monday (Lundi de Pentecôte) |
| July 14 | Bastille Day (Fête Nationale) |
| August 15 | Assumption Day (l'Assomption) |
| November 1 | All Saints' Day (La Toussaint) |
| November 11 | Armistice Day (l'Armistice 1918) |
| December 25 | Christmas Day (Noël) |
| January 1 | New Year’s Day (Jour de l’An) |
| April 13 | Easter Monday (Lundi de Pâques) |
| May 1 | Labour Day (Fête du Travail) |
| May 8 | VE Day (Fête de la Victoire 1945) |
| May 21 | Ascension Day (l’Ascension) |
| June 1 | Whit Monday (Lundi de Pentecôte) |
| July 14 | Bastille Day (Fête Nationale) |
| August 15 | Assumption Day (l’Assomption) |
| November 1 | All Saints’ Day (La Toussaint) |
| November 11 | Armistice Day (Armistice 1918) |
| December 25 | Christmas Day (Noël) |
