Where to hunt for vintage finds in Yvelines this weekend, July 18–19?

This mid-September brings a treasure trove of flea markets and rummage sales to the Yvelines (78), with almost fifteen stops lined up for this weekend of September 19–20, 2026. Here’s the list to help you secure some real bargains.

Head to the Yvelines (78) for this weekend of September 19-20, 2026: three spots kick things off on Saturday, including the Versailles merchants’ clearance sale in the heart of the town, then a further twelve pick up the pace on Sunday, from Conflans-Sainte-Honorine to Mareil-sur-Mauldre. A neat back-to-school lineup for the department’s flea markets and car boot sales.

Saturday, September 19, 2026

Bullion (78830): flea market at Jean Teinturier Stadium.
Senlisse (78720): Pop&Broc, 2nd edition, at Centre H2e.
Versailles (78000): merchants’ fair and street market in the town center.

Sunday, September 20, 2026

Conflans-Sainte-Honorine (78700) : flea market in the ZA des Boutries (business park).
Aubergenville (78410) : children's, baby and early-childhood clothing sale at the covered market.
Follainville-Dennemont (78520) : Dennemont flea market at the stadium.
Gazeran (78125) : flea market at the town hall’s salle des fêtes and on the outdoor parking lot.
Gommecourt (78270) : general sale, 22 Rue des Écoles.
Le Chesnay (78150) : Saint-Matthieu flea market, at the Sabretache forest park.
Le Perray-en-Yvelines (78610) : back-to-school flea markets in the town center.
Magnanville (78200) : flea market, in the parking lot of Lycée Léopold Sédar Senghor.
Mareil-sur-Mauldre (78124) : annual flea market hosted by the town festival committee, in the town hall gardens.
Médan (78670) : flea market in the village center.
Rolleboise (78270) : flea market, Bois Prévost path.
Trappes (78190) : flea market at the Youri Gagarine Sports Complex.

Saturday, Versailles kicks things off with its merchants’ festival paired with a street sale in the town center: a chance to mix shopping, great deals and a neighborhood vibe right at the foot of the palace. In Bullion and Senlisse, two quieter southern villages complete the day, notably with the second edition of Pop&Broc, a concept that’s gaining traction.

On Sunday, the Conflans-Sainte-Honorine flea market is leading the pack at the Boutries business park, highlighted by organizers as the day's flagship event. Not far away, Mareil-sur-Mauldre hosts its annual flea market in the town hall gardens, a sure-fire highlight of the local calendar, while Gommecourt bets on its all-purpose fair, well established as well.

Families aren’t left out with Aubergenville’s children’s, baby and toddler clothes swap, a practical way to build a fall wardrobe without breaking the bank. And for those who prefer a more intimate setup, the villages of Médan, Rolleboise, and Le Chesnay offer a quieter kind of scouting—away from the crowds of the big events.

Admission is free everywhere, and it’s wise to keep an eye on our weather outlook for Île-de-France this week before you head out, with forecasts of a heat spike followed by a sharp drop in temperatures.

Whether you're after home textiles at Aubergenville's covered market, a collectible piece in Conflans, or just a shopping stroll in Versailles, this weekend ticks all the boxes. Looking to branch out? Our selection of flea markets and garage sales in Île-de-France also covers the neighboring departments.

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