Note: You can become eligible for CU membership via National Military Family Association (NMFA). The application page mentions that 20,000 points can be exchanged for round trip ticket for many destinations. This page suggests that current exchange rate would allow redemption of 20,000 points for $320 in air fare. You can also exchange 20,000 points for $200 in gift cards (see more info here).
... receive 20,000 bonus points when you spend at least $650 in the first three months – that's enough for a free roundtrip ticket to many destinations.