Jatujak or Chatuchak market is the largest weekend market in Bangkok, Thailand. We believe it is also the largest of the world. Frequently called J.J., it covers over 35 acres (1.13 km²) and contains upwards of 15,000 stalls. It is estimated that the market receives between 200,000 and 300,000 visitors each day. Most stalls only open on Saturdays and Sundays.

The market offers a wide variety of products including household items, clothing, Thai handicrafts, religious artifacts, collectibles, foods, and live animals.

Chatuchak market is adjacent to the Kamphaengphet station (MRT) of the Bangkok Metro, or about a 5-minute walk from the Mo Chit (หมอชิต) Skytrain (BTS) station and Suan Chatuchak(Chatuchak Park) station(MRT).  You can get here very easilier than before.

History
Chatuchak Market owes its origin to Field Marshal Plaek Phibulsongkram, the late prime minister of Thailand (1938-1944, 1948-1957), who came up with the idea of setting up a flea market in every town. As a result, the first flea market in Bangkok was held at Sanam Luang and was called Sanam Luang flea Market. However, there was time when the place was needed for other special functions and the flea market was then relocated to Saranrom Palace and settled there for 8 years. After that, it was moved again to Sanam Chai. But because of the limited space, it had to be moved back to Sanam Luang. In the same year, the government issued a policy to turn Sanam Luang into a public park for citizens of Bangkok and to be the venue to celebrate 200-year-anniversary of Bangkok, which would be held in 1982. Thus, it was decided that the flea market would be held at the Phahonyothin area from then on and it is later called Chatuchak Market after the nearby park under the same name.

How to get to Jatujak market:
SkyTrain - BTS at Station N8, Mo Chit (Terminus).
Subway - MRT at stations #2 Kamphaeng Phet (closest - between Areas 1 / 2) or #3 Mo Chit (short walk from park).
By bus - Ordinary buses 3, 8, 26, 27, 28, 34, 38, 39, 44, 52, 59, 74, 77, 96, 97, 104, 108, 112, 134, 136, 138 and 145. Air-con buses 2, 3, 9, 10, 12, 13, 29, 38, 39, 44, 136 and 138.
By taxi, ask for Suan Jatujak (Chatuchak park).
Open from 08.00 to 18.00 on Saturdays and Sundays.