The seats were released due to high demand for memberships and are split between the main stand and north stand.
There are already more than 2,700 supporters signed up for the new campaign, which is a new club record.
The additional memberships are on sale now from glasgowwarriors.org and from the ticket office on 0844 800 3490 (Monday to Friday, 9am-5pm).
A direct debit payment scheme is now available and fans who purchase memberships before Tuesday 5 August can take advantage of this new payment method and split their cost into three equal payments.
The seats will only be available for the 2014/15 season, as they form part of the away team allocation, although those who purchase these seats will be given priority if new seats become available next season.
No further seats in the main stand or in the north stand are expected to become available for season ticket memberships, so supporters are urged to act quickly to secure their seat.
The season ticket membership package includes 14 games for the price of nine and memberships start from £135 for adults, £90 for students and senior citizens and all under-18s are just £45.
The Warriors will host defending champions Leinster on the opening weekend of the GUINNESS PRO12, while Montpellier, Bath and Toulouse will visit Scotstoun in the European Rugby Champions Cup next season, with all games included in the season ticket membership package.