Deal: Feeling presidential? Northwest Airlines is offering an LAX-to-Washington D.C. (to either Reagan or Dulles airports) round-trip fare for $183 plus tax.When: The airfare deals are valid only for Tuesday and Wednesday flights. The fare sale offer is for travel from Labor Day through July 2009, with holiday periods excluded.Source: Airfarewatchdog.com[Photo: AP / Pope Benedict [...]

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