The major Labor Day event at the Carrefour shopping center
Every year, on May 1, bargain hunters from the Paris region meet in Montesson to take part in the Great Flea Market organized in the Carrefour shopping center parking lot. This traditional event takes advantage of the public holiday to offer a complete day of bargain hunting in a format suitable for everyone.
The originality of this flea market lies in its location: the parking lot of a large shopping center. This choice offers many advantages: free and easy parking, accessibility from the A14 or N13, and on-site services (cafes, fast food, restrooms).
Montesson is a town of over 15,000 inhabitants located in the Seine loop, between Saint-Germain-en-Laye and Le Pecq, at the gates of western Paris. Its strategic position makes it an appreciated crossroads.
With its generous format and established reputation, the Great May 1st Flea Market attracts a large number of exhibitors each year. Individuals and professionals mix together, offering visitors a wide variety of products.
Taking advantage of May 1 for a flea market is like offering yourself a relaxed break on a public holiday. The atmosphere is generally cheerful, and exhibitors are willing to discuss and negotiate.
Friday, May 1, 2026.
Carrefour shopping center, Montesson (78360), Yvelines.
From Paris via the A14 or N13. Free parking on site. Le Vésinet-Le Pecq and Sartrouville SNCF stations nearby (RER A and line L).
Free admission. Catering and services available in the shopping center.
Individuals and professionals. Numerous stalls.
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