Józsefvárosi piac

Flea markets in Budapest 

The market closest to the city center, the Józsefvárosi piac is informally known as "Four Tigers," an allusion to the tremendous presence of Chinese vendors. The market, situated on the side of a railroad yard, near the Józsefváros Station, operates daily from 7am to 6pm.
You can get there by Tram: 28 from Blaha Lujza tér (Red line metro) or 36 from Baross tér (Keleti Station, Red line metro), and get off at Orczy tér (4th station on line 28, from Blaha Lujza). From there you have 500 m walk.

Another flea markets in Budapest are: Ecseri and PeCsa

Ecseri Flea Market:
Opening hours: Monday - Friday 8.00 -16.00, Saturday 8.00 -15.00, Sunday 8.00 -13.00
Address: Budapest XIX. kerület, Nagykőrösi út 156.
You can get there by Bus 54 from Baross tér (Keleti Station, Red line Metro) 

Pecsa Flea Market:
Opening hours: Saturday - Sunday 8.30 -14.00
Address: Budapest XIV. kerület, Zichy Mihály út 14. (PeCsa)
You can get there by trolleybus lines 70, 72, and 74.
Ticket Prices: 120 Ft. (for younger from 14 and older than 70 years - free entrance)