Washington, DC is not a big flea market city but there are a few good spots for browsing for bargains.
Georgetown Flea Market
Hardy Middle School, 1819 35th Street NW, at Wisconsin Avenue NW Washington DC. (202) 775-FLEA. The Washington, DC area’s largest flea market offers a wide range of antiques, collectibles, hand-crafted art and jewelry, and vintage furnishings and clothing. Open Saturdays and Sundays.
7th Street & North Carolina Avenue, SE. Washington, DC (202) 544-0083. The city’s oldest public market holds a flea market with handmade pottery, jewelry, ceramics, crafts, furniture and more. Open Saturdays and Sundays.
Bethesda Flea Market
7155 Wisconsin Ave. Bethesda, Maryland. (301) 652-2291. The Montgomery Farm Women's Cooperative Market hosts a flea market offering home furnishings, jewelry, arts and crafts, and more. Open Wednesdays, Fridays, Saturdays and Sundays.
Wheaton Flea Market
2730 University Blvd, Westfield Shopping Mall, Wheaton, Maryland. (301) 649-1915. Open every Saturday and Sunday 9 a.m. - 4 p.m. all year. Outdoors. Vendors are selling many sought after items including international and domestic crafts, jewelry, art, household goods, antiques, furniture, various collectibles, electronics, new/used items, tools, books, cloths and much more.
See also, Thrift Stores and Vintage Clothing in Washington, DC