I know that yield management adjust fares to loads, but you don't very often see something like this:

29 Apr SFO - DEN - OMA $73.96 LR0KN
4 May OMA - DEN $175.81 UA0KN - SFO $160.00 TA7KN

The return connection on the same route costs 4.5 times as much as the outbound. (The lower return fare was available with a 6 am departure, but since the airport was more than an hours drive, Mrs mdspadeccom vetoed it!

What's the biggest (coasch) difference on a rt others have seen?

FYI.