I have enough points on Southwest to pay for the flight u one-way, but not for the return. I am about 5 months away from my trip, and the return on Spirit is the exact time and airport I want to return to. It's also the cheapest (even with bag fees). With that said, I have heard at least a dozen horror stories. All the other flights are 40% higher, and many don't fit in this perfect time slot. Should I roll the dice and book Spirit for a one way flight?