Paris Metro: The Capital’s Worst Line Will Be Closed for Nearly 40 Days This Summer—Plan Your Vacation Accordingly
Every summer, the Île-de-France public transit network turns into a real obstacle course. This year, 2026, Île-de-France Mobilités (IDFM) has confirmed that four metro lines will be affected by summer construction. Among them, one line is bearing the brunt of the disruptions and promises a particularly difficult summer for its regular riders.
Line 13 in the Spotlight for Summer Construction
Every year, it’s the same event that no one really wants to deal with. With the arrival ofsummer, you’ll need to plan your trips around service disruptions on the Île-de-France transit network. This year, Line 13—nicknamed the “sky-blue line”—is by far the hardest hit.
As a result, Île-de-France Mobilités has scheduled repeated service interruptions on this line from early July through the end of August. Furthermore, these closures affect separate sections of the line, which means that virtually no part of the line will be spared this summer.
For daily commuters, this news is hard to swallow. However, planning ahead now can help avoid unpleasant surprises when heading out on vacation or commuting to work.
A southern section closed for 20 days
The first closure affects the section between Châtillon–Montrouge and Malakoff–Rue Étienne Dolet. This section will be inaccessible from July 6 to 26, meaning there will be no metro service in this area for 20 consecutive days.
A replacement bus service will be provided to compensate for this disruption. However, we know that this type of solution significantly increases travel times, especially during the summer when traffic in Paris remains heavy.
“With just a few weeks to go before the summer festivities begin, it’s already time to plan your travel for July and August—and, most importantly, if necessary, to schedule your vacation time around the subway construction.”
August offers no respite for Line 13 riders
No sooner had July ended than a second round of construction began. From July 31 to August 17, the northern section—between Saint-Denis–Université and La Fourche—will be affected. This area is, by nature, busier than the southern section that was closed in July.
As a result, the impact on passengers is likely to be even more significant, even though the University of Saint-Denis is closed for school break. A replacement bus service will once again be provided on this route.
In addition, the Vanves station will be closed from August 6 to 9. The line will also be completely inaccessible on the mornings of Sundays, August 2, 16, and 30. These are all additional inconveniences that are piling up for the most frequent riders.
- Closure of the Châtillon–Montrouge / Malakoff–Rue Étienne Dolet section from July 6 to 26
- Closure of the Saint-Denis–Université/La Fourche section from July 31 to August 17
- Vanves Station will be closed from August 6 to 9
- The line will be completely out of service on the mornings of Sundays, August 2, 16, and 30
- Replacement buses are scheduled for each affected section
A schedule that affects almost the entire line
With all these disruptions combined, Line 13 will experience service disruptions for much of the summer of 2026. From now on, passengers will have to navigate closures affecting both the northern and southern sections of the line in turn, as well as Sundays with no service in the morning.
In total, between the July and August closures, travelers on this line can expect more than a month and a half of cumulative disruptions. As a result, planning alternative routes has become a practical necessity, rather than just a precaution.
What this means in practical terms for your travel
If you use Line 13 to get to work or for your summer outings, you’ll need to adjust your plans right away. Lines 4, 8, and 12 will also be affected by construction this summer, according to information provided by the passenger advocacy group AUT / FNAUT IDF. As a result, finding alternatives won’t always be easy.
The announced replacement buses offer a solution, but they result in longer travel times. Furthermore, in the middle of the Parisian summer, travel conditions on the ground are rarely ideal. Planning for other options—the RER, biking, or working from home if possible—remains the most effective strategy.
However, these construction projects have one goal: to improve the network in the long term. We hope that by the start of the school year, Line 13 will disprove all the stereotypes about it, as the original source pointed out. After such a turbulent summer, passengers deserve a more reliable and regular service on this much-used Parisian metro line.
For residents of the affected neighborhoods, the key is not to wait until the last minute. Checking the schedules for replacement buses and finding alternative stops near your home is still the best way to stay calm this summer while construction is underway.
