How about this itinerary from Denver to San Francisco: computer executive John Palley ignores Denver's sparkling new airport just 20 minutes away and zips his Honda 72 miles down the highway to Colorado Springs. There he hops on a United Airlines plane that flies him . . . Yup. Back to Denver? Thirty minutes later Palley is on a jet to San Francisco. Savings: about $650 by starting his round-trip flight in Colorado Springs.
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