Which sections of the A9 are closed toward Lainate?

The section between Lake Como and Como Centro, toward Lainate, is closed from 22:00 to 5:00 on the nights of Monday 12, Tuesday 13 and Wednesday 14 October. The closure resumes from 23:00 on Saturday 17 to 6:00 on Sunday 18 and from 22:00 on Sunday 18 to 5:00 on Monday 19 October. The mandatory exit is at Lake Como, with regular roads toward Lainate/Milan and re-entry at Como Centro.

When is the section toward Chiasso and Switzerland closed?

The section between Como Centro and Chiasso, toward Chiasso/Switzerland, is closed from 22:00 on Thursday 15 to 5:00 on Friday 16 October and from 23:00 on Friday 16 to 6:00 on Saturday 17 October. After the mandatory exit at Como Centro, the indicated alternative is the regular road network toward Chiasso as far as the city customs post.

How long does Como Centro remain accessible for entry?

No. The Como Centro interchange is closed for entry in both directions. To enter toward Chiasso, the ordinary road network toward Chiasso as far as the city customs office is recommended; to enter toward Lainate, Lomazzo nord is indicated. These directions concern access to the interchange, distinct from the closure of motorway sections.

Until when does Fino Mornasco remain closed?

Fino Mornasco remains closed for entry in both directions continuously until November 14. The restriction is linked to the upgrading work on the station facilities. It is therefore separate from the nighttime closures on the A9 arranged for the inspection and maintenance of the tunnels.

A9 Como-Chiasso: nighttime closures in October

Di Redazione Frontaliere Ticino · Published on 10 October 2026

Closure towards Lainate on the nights of October 12–14 and 17–19 Closure towards Chiasso/Switzerland on the nights of 15–16 and 16–17 Como Center closed for entry in both cases

Context

TL;DR

Closure toward Lainate on the nights of October 12–14 and 17–19
Closure toward Chiasso/Switzerland on the nights of 15–16 and 16–17
Como Centro closed to entry in both directions
Fino Mornasco closed to entry until November 14

Key facts

What → tunnel inspection and maintenance
Toward Lainate → Lago di Como-Como Centro section
Toward Chiasso/Switzerland → Como Centro-Chiasso section
Times → 22:00-5:00 and 23:00-6:00
Fino Mornasco → continuous closure until November 14

Closures are planned on the A9 Lainate-Como-Chiasso to allow tunnel inspection and maintenance work. For commuters using this route toward Switzerland, the section to watch is the one between Como Centro and Chiasso; for those traveling toward Lainate, the restriction concerns the segment between Lago di Como and Como Centro.

Closures toward Lainate

On the nights of Monday, October 12, Tuesday, October 13, and Wednesday, October 14, the section between Lago di Como and Como Centro will remain closed toward Lainate from 22:00 to 5:00. The measure will be repeated over the weekend, between 23:00 on Saturday, October 17 and 6:00 on Sunday, October 18, as well as between 22:00 on Sunday, October 18 and 5:00 on Monday, October 19.

During these periods, after being required to exit at the Lago di Como interchange, drivers must follow ordinary roads toward Lainate/Milan and then re-enter the A9 from the Como Centro interchange, in the direction of Lainate.

Closures toward Chiasso

Between Como Centro and Chiasso, traffic toward Chiasso/Switzerland will be interrupted from 22:00 on Thursday, October 15 until 5:00 on Friday, October 16 and, again, from 23:00 on Friday, October 16 until 6:00 on Saturday, October 17. During both time periods, it will be mandatory to exit at Como Centro and continue on ordinary roads toward Chiasso, as far as the town customs office.

The Como Centro interchange will also be closed to entering traffic in both directions. Finally, the Fino Mornasco entrance will remain closed in both directions continuously until November 14, for station facility upgrading work.

Operational details

For the cross-border commuter, the notice requires distinguishing between those already on the A9, those who need to enter at Como Centro and those planning to access it from Fino Mornasco. The direction of travel changes the alternative provided: it is not enough to know that the A9 is affected by closures.

The choice depends on the entry point

Table 1: Situation
Situation	Guidance provided
Motorway toward Lainate	Exit at Lake Como; ordinary road network toward Lainate/Milan; re-enter at Como Centro
Motorway toward Chiasso/Switzerland	Exit at Como Centro; ordinary road network toward Chiasso up to the city customs checkpoint
Entry at Como Centro toward Chiasso	Ordinary road network toward Chiasso up to the city customs checkpoint
Entry at Como Centro toward Lainate	Lomazzo nord

The first comparison concerns the exit point. Toward Lainate, the alternative route starts from Lake Como and ends with re-entry at Como Centro. Toward Chiasso/Switzerland, on the other hand, the mandatory exit is Como Centro and the ordinary road network continues up to the city customs checkpoint. These are different instructions, referring to two different directions.

The second comparison concerns the entry point. Como Centro is closed to entry in both directions, but the alternative changes: those heading toward Chiasso follow the ordinary road network up to the city customs checkpoint; those heading toward Lainate must consider Lomazzo nord. The source therefore links each instruction to its respective direction.

Fino Mornasco follows a separate logic. The closure to entry, in both directions, is continuous until November 14 and depends on the refurbishment of the station facilities, not just the nighttime windows dedicated to the tunnels.

To organize the departure, it is advisable to note the direction and access point first, then check whether it concerns the closure of the section, the entry, or both. mappa dei valichi helps identify the passage points; storico del traffico e delle code ai valichi can be consulted as a separate tool. The indicated alternatives remain the ordinary road network, the city customs checkpoint, and Lomazzo nord.

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Key points

Pre-departure procedure

1. Check the date and time. The windows toward Lainate are from 22:00 to 5:00 on the nights of October 12, 13 and 14; over the weekend, the first runs from 23:00 on Saturday, October 17, to 6:00 on Sunday, October 18, while the last covers the period from 22:00 on Sunday, October 18, to 5:00 on Monday, October 19. Those toward Chiasso/Switzerland are from 22:00 on Thursday, October 15, to 5:00 on Friday, October 16, and from 23:00 on Friday, October 16, to 6:00 on Saturday, October 17.

2. If you are already on the A9 toward Lainate, consider the mandatory exit at Lago di Como, the regular road network toward Lainate/Milan, and re-entry at Como Centro. If the direction is Chiasso/Switzerland, the planned exit is Como Centro, with continuation on the regular road network up to the city customs checkpoint.

3. If you need to enter Como Centro, remember that access is closed in both directions. Toward Chiasso, the indicated route is the regular road network to the city customs checkpoint; toward Lainate, Lomazzo nord is indicated.

4. If you had planned to enter from Fino Mornasco, consider the continuous closure for entry in both directions until November 14, linked to the upgrading of the station facilities.

The decisive check is to cross-reference four elements: date, time, direction and entry point. If one falls within the restriction, the alternative provided for that specific situation must be applied. It is useful to keep the mandatory exit and the unavailable entry separate, especially in the case of Como Centro.

Before the trip toward the border, also consult the tempi di attesa ai valichi. After organizing the trip, check your salary and payslip with the calcolatore stipendio.

Source: comozero.it

Frequently Asked Questions

Which sections of the A9 are closed toward Lainate?: The section between Lake Como and Como Centro, toward Lainate, is closed from 22:00 to 5:00 on the nights of Monday 12, Tuesday 13 and Wednesday 14 October. The closure resumes from 23:00 on Saturday 17 to 6:00 on Sunday 18 and from 22:00 on Sunday 18 to 5:00 on Monday 19 October. The mandatory exit is at Lake Como, with regular roads toward Lainate/Milan and re-entry at Como Centro.
When is the section toward Chiasso and Switzerland closed?: The section between Como Centro and Chiasso, toward Chiasso/Switzerland, is closed from 22:00 on Thursday 15 to 5:00 on Friday 16 October and from 23:00 on Friday 16 to 6:00 on Saturday 17 October. After the mandatory exit at Como Centro, the indicated alternative is the regular road network toward Chiasso as far as the city customs post.
How long does Como Centro remain accessible for entry?: No. The Como Centro interchange is closed for entry in both directions. To enter toward Chiasso, the ordinary road network toward Chiasso as far as the city customs office is recommended; to enter toward Lainate, Lomazzo nord is indicated. These directions concern access to the interchange, distinct from the closure of motorway sections.
Until when does Fino Mornasco remain closed?: Fino Mornasco remains closed for entry in both directions continuously until November 14. The restriction is linked to the upgrading work on the station facilities. It is therefore separate from the nighttime closures on the A9 arranged for the inspection and maintenance of the tunnels.