Which would you rather pay for Philadelphia to Boise? $258 or $400?

George Hobica, April 24, 2009
Fares from Washington DC:

    Same route, same dates, but two different ways to buy.

    Using a 50% off promo code on Southwest.com, you'd pay $258 RT including taxes.

    But Kayak says you'd have pay $400 with taxes. But only if you like paying more than you really need to.