Southwest Airlines to Cut 88 Flights  NEW YORK (Reuters) - Southwest Airlines Inc. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=LUV.N target=/stocks/quickinfo/fullquote"&gt;LUV.N&lt;/A&gt;, the  largest U.S. discount carrier, on Monday said it will eliminate  88 scheduled flights in order to boost revenue by freeing up  planes for more lucrative markets.