I've been watching airfares from American and Delta for a trip to Phoenix in July. Both had good fares, but the Delta fare was a bit less and the time for the flights was perfect. Within the last couple of weeks the price went up by almost $100 and today it's gone up another $20. For those of you with Delta experience, do the prices ever go back down (other than last minutes deals)? With the flight still 7 months out, I was a little surprised to see it go up so much. The price of the American flight is still the same.