Airline tickets

I swear Continental Airlines had a spike in prices a few weeks ago. I was looking at prices of tickets in early July, and Continental was the cheapest airline out of American Airlines, United, and US Airways. Now, all of a sudden, out of no where, they’re the most expensive! Now that I finally have money to buy the damn tickets, Continental has flaked out on me! What the heck. What am I supposed to do now?