The flea markets and rummage sales in the Yvelines are concentrated on a single day this weekend of October 17–18, 2026. In the Yvelines (78), Saturday stays quiet, and everything hinges on Sunday with the Andrésy flea market, boasting more than 300 exhibitors and a quay-side setting along the Seine.
Rounding out the big clearance, the Mantois area takes over with the 39th Magnanville Collectibles Fair and the Buchelay flea market. A short program, but plenty to fill a Sunday with good deals and collectible pieces.
As we travel through the department, we’ve learned that these tight, action-packed weekends have their perks. Bargain hunters converge at the same spot, the vibe climbs a notch, and the streets of Andrésy take on the feel of a big neighborhood festival.
The Andrésy Flea Market returns on Sunday, October 18, 2026, with more than 300 exhibitors, from private sellers to professionals. Organized by Mandon, it unfolds across three zones: under the market hall, along Boulevard Noël-Marc near the town hall, and on Avenue du Général-de-Gaulle up to the Seine quays.
The hall’s covered spaces are at full capacity, a clear sign the event has its devoted following. On the visitors’ side, entry is free and the aisles run from 8 a.m. to 6 p.m., with a drinks bar and on-site food available. It’s the kind of big rummage where you slip from a crate of vinyl records to a stack of embroidered linens in the blink of an eye.
Andrésy holds a rare edge: it sits where the Seine and the Oise meet. Once you’ve filled your bags, a riverside stroll is a must, with views of barges gliding toward Conflans-Sainte-Honorine, the nearby capital of the inland waterways. Without a car, Andrésy’s train station is served by Transilien line J.
Collectors flock to Magnanville, where the 39th Collectibles Fair takes over the Marie-Amélie-Le-Fur gymnasium. About fifty exhibitors, both enthusiasts and professionals, are on hand to showcase their finds in a warm venue, from 9 a.m. to 6 p.m., with a refreshment stand on site and free admission. Thirty-nine editions in, that kind of longevity reassures fans of stamps, postcards, and quirky curiosities.
Just minutes from here, Buchelay hosts its flea market on the brocante on the Decathlon parking lot. About a hundred vendors are expected for this event, a fixture for around fifteen years that returns regularly throughout the year. The aisles are open from 8 a.m. to 5 p.m., free admission.
The two towns border Mantes-la-Jolie, where the Notre-Dame collegiate church rises above the Seine. The Pont de Mantes even inspired Camille Corot, who painted it in the 19th century. A touch of heritage to slip in between two stalls.
Those who like to plan ahead can already note the Guernes Halloween flea market, on Sunday, October 25, 2026. On Saturday, October 24, Houdan will host a cinema and video fair, while Méré and La Queue-les-Yvelines will stage their two-day clothing fairs. Fall dates can change, so it’s wise to double-check with the organizer the day before.
Admission is free at these three flea markets. Plan to have cash, since many individual sellers don’t take cards, a sturdy bag, and a light sweater for the cooler mornings. On the weather front, a noticeable cool-down is forecast for the weekend, to be tracked in our weekly weather bulletin.
If you’re arriving by train, check out our briefing on the transport disruptions from October 12 to 18, 2026.
Fans of big rummage sales will want to head to Andrésy, which concentrates most of the weekend’s offerings. Collectors will find plenty to love in Magnanville, and bargain-hunters in the Mantois can follow up with the Buchelay flea markets without long trips.
Looking to widen your options? Our guides to the brocantes in Seine-et-Marne and the brocantes in Essonne take the spotlight this weekend. For other ideas of things to do, head to what to do this weekend in Paris and Île-de-France and the week’s best deals from October 12 to 18, 2026.
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Dates and Opening Time
From October 17, 2026 to October 18, 2026
Location
Yvelines
yvelines
Route planner
Prices
Free
Recommended age
For all
