You may remember that 2 years ago, with much fanfare Delta announced its so-called SimpliFares program. The idea was that it would simplify its fare structure and cap its top fares at $499 each way. Those were the days. Delta announced yesterday that it was raising its top fares to $704 each way, a 40% increase over the so-called SimpliFares. If it seemed like you were paying more for your next business flight, you were probably right.