So I need to go to DFW this weekend last minute. Instead of paying the $1200 US is asking for a ticket, I'm thinking about getting a 12,500 ticket each way plus the $75 14 day window thing. They only have the high award award option on the first flight out of CLT that I want. If I book the next flight, will they let me standby even though I'm on an award ticket? I feel like the answer is yes, but thought I'd double check with the experts.