Had been struggling to find reasonable flights to Florida this month. Took a $278 RT Flight out of 2 different airports grudgingly. Issues came up last week that forced me to change dates by 3 days. Rebooked less than 2 weeks out, the flights dropped to $117 RT in and out from the same airport, both flights are nonstop now, and times are better. In this case, the last minute change worked out. In this environment, book what you think is good. Rebook if you can without penalty if the price drops.