Swiss Supermarket Deals: Which Chain Starts on Which Day

All three full-range Swiss supermarkets now start their weekly Aktionen on Thursday, but not since the same date. Coop moved from Tuesday to Thursday in the week of 21 January 2025, and Migros and Denner followed on 5 February 2026. Aldi Suisse and Lidl Schweiz run two waves a week, one starting Monday and one starting Thursday. Aligro brings out a new weekly flyer every Monday, valid until Saturday, and Otto’s starts its weekly deals on Tuesday, with no end date. So if you are still searching the big chains for deals starting next Tuesday, you are searching for a calendar that no longer exists in that form: today only Otto’s still starts on a Tuesday.

This page is the weekday table behind that: all seven chains, the date of each switch, the channels where the flyer and the preview appear, and how to read the validity line instead of trusting the weekday.

Last updated: September 2026. Sources: Coop per foodaktuell.ch, «Coop-Aktionen beginnen neu am Donnerstag», 21 January 2025, and watson.ch, 15 January 2025; Migros per corporate.migros.ch, «Migros-Aktionen starten neu am Donnerstag», 26 January 2026; Denner per the media release on denner.ch, «Denner verschiebt Aktionsstart auf Donnerstag», 26 January 2026. The start days and validity windows of the other chains were read on 6 September 2026 on aldi-suisse.ch, lidl.ch, denner.ch, aligro.ch and ottos.ch and checked again on 25 September 2026, together with the Aligro and Otto’s flyer archives. This guide deliberately quotes no weekly prices.

Rappn is an independent grocery price comparison app in Switzerland, with no commercial agreements with any retailer.

Which supermarket starts its deals on which day?

The table also answers the question most people are really asking: no, there is no single day on which the whole country gets cheaper at once. There are three switch-over days a week: Monday at Aldi, Lidl and Aligro, Tuesday at Otto’s and Thursday at Migros, Coop, Denner, Aldi and Lidl.

What changed on 5 February 2026

Migros announced the change on 26 January 2026 in its corporate newsroom: from 5 February 2026 Migros Aktionen start on Thursday and are valid until Wednesday of the following week. The stated reason is that more and more customers come in for their larger shop between Thursday and Saturday. At the same time the Migros magazine, with the Migros week as an insert, is now delivered on Wednesday, one day before the start.

Denner communicated on the same day and switched on 5 February 2026. Its weekly deals have run Thursday to Wednesday since then, having previously run Tuesday to Monday. The Denner flyer is now distributed on Wednesday inside the Migros magazine, where it used to arrive on Monday. According to the same release, the weekend deals grow from two days to four.

Coop was more than a year ahead. Per foodaktuell.ch of 21 January 2025, the chain moved its price promotions from Tuesday to Thursday with validity until Wednesday, reworked its weekend hits as well, added new start-of-week hits, which run Monday to Wednesday according to coop.ch, and moved its own newspaper to Thursday. Watson reported the same step on 15 January 2025, noting that the paper shifted from Tuesday to Thursday.

Deals starting next Tuesday: why the old phrasing survives

Because it was correct for years. Until January 2025 the promotion week began on Tuesday at Coop, and until 5 February 2026 at Migros and Denner. If you built your shop around Tuesday for a decade, you keep typing that habit into the search box, and part of the flyer and comparison web never updated its text. The phrasing is not a mistake by the person searching, it is an echo of the old system.

In practice, when you search for deals starting next Tuesday you almost always mean one of three things: the deals that start on the coming Thursday, the Monday wave at Aldi, Lidl or Aligro, which is still valid on Tuesday, or Otto’s weekly deals, which really do start on Tuesday. You find all of them by checking the period rather than the weekday. Prices change every Thursday, which is why Rappn shows you today, not a week that has already expired.

What Folgewoche, the following week, actually means

Folgewoche is not marketing language, it is Migros wording: the deals are valid until Wednesday of the following week. Because a promotion week starts on Thursday, it sits across the calendar week. The first four days fall in the current calendar week and the last three in the next one. A deal that started on Thursday is therefore still valid on the Monday after, even though the calendar already shows a new week.

That gives one word two very different search intents. Looking for next week’s deals means either the tail of the current wave, which spills into the new calendar week, or the wave that will start on the coming Thursday. If you mean the second, the guide Grocery deals next week in Switzerland is the right place: it says chain by chain when and where the preview appears.

When the flyer, the newspaper and the preview appear

Two caveats matter here. First, the Lidl, Aldi, Aligro and Otto’s rows are dated observations and not a published rule: none of these chains states publicly how many days ahead a wave goes up. Second, the earliest look at the new week confirmed by a published source arrives from Migros and Denner in the letterbox on Wednesday. The full channel picture is in Swiss supermarket catalogues.

How to read the validity line

The weekday is the rule of thumb, the period is the truth. A dated example: on 6 September 2026, denner.ch showed two blocks directly under one another, the weekend deals with the period 03.09 to 06.09.2026 and the weekly deals with 03.09 to 09.09.2026. Both started on the same Thursday, but one block ended on Sunday and the other only on Wednesday. Read only the start day and you take them for the same offer.

Three habits work at every chain. First, look for the line carrying the two dates, not the headline. Second, weekend formats are almost always shorter than the weekly deal: at Migros and Denner the weekend deals run Thursday to Sunday, and Lidl’s Super Weekend runs Thursday to Saturday (migros.ch, denner.ch and lidl.ch, read on 25 September 2026). Third, a note such as while stocks last can shorten the period at any time, especially on the discounters’ non-food items, and Aldi Suisse’s deals and Otto’s weekly hits carry no end date at all. The system behind all of it is explained in the guide How Swiss Aktionen work.

One sentence per chain, with the date

Migros: deals start on Thursday and are valid until Wednesday of the following week, since 5 February 2026, previously Tuesday (corporate.migros.ch, 26 January 2026). See Migros deals next week.

Coop: deals start on Thursday and run until Wednesday, since the week of 21 January 2025, previously Tuesday (foodaktuell.ch, 21 January 2025). See Coop deals next week.

Denner: weekly deals run Thursday to Wednesday, since 5 February 2026, previously Tuesday to Monday (denner.ch, 26 January 2026). See Denner deals next week.

Aldi Suisse: two waves a week, from Monday and from Thursday, while stocks last and with no end date; only the Superdeal is dated, Thursday to Wednesday (read on 25 September 2026 on aldi-suisse.ch). See Aldi deals next week.

Lidl Schweiz: the leaflet week runs Thursday to Wednesday and the Super Weekend Thursday to Saturday, with a second wave from Monday that runs until Wednesday or Saturday, depending on the item (read on 25 September 2026 on lidl.ch). See Lidl deals next week.

Aligro: the weekly flyer runs Monday to Saturday, as the stores are closed on Sunday. The Actions PRO #40 edition runs from 28 September to 3 October 2026 (aligro.ch, read on 25 September 2026). Some special promotions run for several weeks, such as the Foire aux vins from 21 September to 3 October 2026.

Otto’s: the weekly hits are valid from Tuesday, with no end date and while stocks last. The KW40 edition is valid from 29 September 2026 (ottos.ch, read on 25 September 2026). Every edition since mid-July 2026 has started on a Tuesday; earlier in the year a few started on a Wednesday.

So what does this mean for your shop?

It depends on which chains are near you. If you have Migros, Coop or Denner in town, Thursday morning is the moment when all three switch on their new deals at once. If a discounter is nearby too, Monday gives you a second window and you do not have to wait for Thursday. And if you shop on Tuesday, at the full-range chains you are buying the prices of a week that expires in two days.

A calendar in your head is still not a price comparison, because which item is discounted this week varies by product and by canton. Open the offers view in Rappn and type Aktionen: you see all current offers from the seven chains side by side, with the unit price next to the pack price. Free, no account, in four languages.