Flea & antique markets in Tokyo

Almost all of them are. You only pay for what you buy. A few large ones, like the Ajinomoto Stadium BIG flea market, charge a small entry fee, which is shown in the listing.

Come early. The best finds go in the first hour, and most markets wind down by mid-afternoon. Weekends and national holidays have the most markets.

Outdoor markets are usually cancelled in rain, sometimes decided on the morning itself. Check the organiser page linked from each market before you set off.

Bring cash in small notes: most stalls do not take cards. Polite haggling is normal at flea and antique markets, less so at handmade markets where makers set their own prices.