Currently, there is not a Straight Talk family plan. However, depending on the size of the family, individual Straight Talk plans may be more affordable than one family plan from other traditional carriers.
Straight Talk plans start out at $30 for 30 days of service. This includes 100 MB of data and unlimited nationwide texting. Family plans from more traditional carriers such as Verizon and AT&T are currently available go for around $140 and provide four lines of service. Potentially, one could save about $20 if they were to purchase four individual plans from Straight Talk rather than buying a family plan from a traditional carrier.