Maclin Open Air Market

Maclin Open Air Markets has operated in Ontario since 1929, when founder Mac Maclin established the original open-air market and auction, initially as a livestock auction facility. Today, the marketplace at 7407 E Riverside Dr features a diverse range of vendors selling new and used merchandise, antiques, collectibles, clothing, fresh produce, and unique gifts. Operating primarily on weekends with nominal admission fees, Maclin remains one of Southern California’s largest and most established swap meets and flea markets, serving bargain hunters and families throughout the Inland Empire region.