Work out the total cost for return airline tickets for 12 players and the coach based on the cheapest price.

The team will likely need checked baggage for their netball kits. We will calculate the effective price per ticket for each airline, including the cost of a checked bag if it's not already included.

• FlySafair (FA111): $\text{R}1,129 \text{ (ticket)} + \text{R}210 \text{ (checked bag)} = \text{R}1,339$
• Airlink (4Z53): $\text{R}1,249 \text{ (checked bag included)}$
• CemAir (5Z336): $\text{R}1,249 \text{ (checked bag included)}$ - Note: Only 4 seats left at this price.
• LIFT (GE125): $\text{R}1,249 \text{ (ticket)} + \text{R}110 \text{ (checked bag)} = \text{R}1,359$
• South African Airways (SA317): $\text{R}1,900 \text{ (checked bag included)}$

Comparing the effective prices:

• FlySafair: R1,339
• Airlink: R1,249
• CemAir: R1,249
• LIFT: R1,359
• South African Airways: R1,900

Both Airlink and CemAir offer the lowest price of R1,249 with checked baggage included. However, CemAir has a limitation of "only 4 seats left at this price," which makes it unsuitable for a team of 13 people. Therefore, Airlink is the cheapest viable option for the entire team.

The cheapest airline is $\boxed{\text{Airlink}}$.

The team consists of 12 players and 1 coach, totaling $12 + 1 = 13$ people.
Based on the previous calculation, the cheapest one-way ticket price, including checked baggage, is $\text{R}1,249$ (from Airlink).

A return ticket means flying to Cape Town and back to Johannesburg.

Multiply the cost of one return ticket by the total number of people.

The total cost for return airline tickets for 12 players and the coach is $\boxed{\text{R}32,474}$.