The World Famous Brimfield Flea Markets 2019 Guide 2019 Brimfield Dates May 14-19, July 9-14, September 3-8 Frequently Asked Questions about The Brimfield Antique Flea Markets What are the 2019 Show dates and hours for the Brimfield Antique Flea Market season? The dates for 2019 are May 14-19, July | Brimfield Antique Flea Markets 2019