The flea markets and garage sales in Yvelines switch to a village-time rhythm this weekend of October 10-11, 2026. After the big open-air sales at the start of the month, the Yvelines (78) banks on village gatherings, with the Saint-Denis flea market in Mesnil-Saint-Denis and the 32nd flea market in Sonchamp.
Around these two highlights, about fifteen sale events take place from Chatou to Adainville, via Saint-Rémy-lès-CChevreuse and Maisons-Laffitte. Flea markets, toy fairs, charity bargain sales and even a music fair: the lineup is tighter, but it’s full of character.
As we wander around the department, we’ve grown to love these quieter weekends: fewer crowds in the aisles, vendors who take the time to tell the story behind their items, and often a coffee shared at the corner of a stall.
The Saint-Denis Flea Market takes place on Sunday, October 11, 2026, at the Church Square in Mesnil-Saint-Denis. Organized by the Festival Committee, it brings together between 100 and 200 private exhibitors, with a funfair and outdoor dining on offer.
Its name is no accident. Saint-Denis is celebrated on October 9, and the town marks its patron saint the Sunday that follows, a nod to old village fêtes. Shoppers wander among crates of dishware and vintage toys as children race toward the rides.
The village sits in the Regional Natural Park of the Haute Vallée de Chevreuse. It's the kind of setting that invites you to extend the day with a forest walk, once you've filled your bag. Entrance to the flea market is free.
On the edge of the Rambouillet forest, Sonchamp is staging its 32nd flea market and rummage sale in the village center. A long-running tradition that speaks volumes about the loyalty of regulars. If you’re in the area, the Château de Rambouillet and its National Sheep Farm are only a short drive away.
A little further east, Saint-Rémy-lès-Chevreuse lays out its flea-market scene along Avenue des Buissons. A boon for Paris residents without a car: the town is the terminus of the RER B, making it one of the valley’s easiest flea markets to reach.
In the westernmost edge of the department, Adainville rounds out this rural itinerary with its flea market, not far from Houdan.
In Maisons-Laffitte, the horse-loving town, they’re hosting a dance-friendly, charitable flea market at the Arcadie Gardens. The concept is intriguing: you browse for bargains to music, and the event supports a good cause. A fresh, original way to do your Sunday shopping.
Music lovers are gathering in Guernes, along the bend of the Seine, for the 4th music fair. Vinyl records, CDs, instruments or sheet music—the perfect moment to grow your collection.
On the solidarity front, the Emmaüs community of Follainville-Dennemont is staging its big autumn sale over two days, while Oinville-sur-Montcient, in the Vexin, hosts a charity clothes swap. Closer to Paris, Chatou is setting up its family flea market at Place du Marché.
Parents preparing for winter have several options. Marly-le-Roi is hosting its autumn-winter clothing fair over two days, and Andrésy is staging a children's winter flea market, perfect for coats and boots.
For toys, head to Bréval, Neauphle-le-Château or Vert. The latter adds books, arts and crafts, and sewing-flea markets, handy for stocking up on fabrics and buttons at the same time as the birthday party treat.
Early birds can already mark down the Andrésy flea market on the Seine quay, scheduled for Sunday, October 18, 2026, as well as Magnanville’s 39th collectibles fair on the same day. As always in autumn, it’s wise to double-check each date the day before with the town hall or the event organizer.
Because this program shines a spotlight on villages and warm, convivial vibes. Le Mesnil-Saint-Denis and Sonchamp offer truly festive flea markets, Maisons-Laffitte and Guernes break with the usual, and families will find plenty to love at toy and clothing swaps.
Admission is free at most of these pop-up sales. Bring cash, as many vendors don’t accept cards, a large tote, and a light sweater for chilly mornings. Always double-check any cancellations before you travel.
Craving more options for your shopping? Our pick of flea markets and yard sales in Paris and Île-de-France spans the neighboring departments, just like our guides to the Hauts-de-Seine flea markets and the Seine-et-Marne flea markets this weekend. To complete the lineup, don’t miss the week’s best deals from October 5 to 11, 2026, in Paris and Île-de-France.
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Dates and Opening Time
From October 10, 2026 to October 11, 2026
Location
Yvelines
yvelines
Route planner
Prices
Free
Recommended age
For all
