As a result of rising fuel costs, airlines resumed their fare increases as Delta Air Lines raised tickets by up to $20 round-trip in most domestic markets and United Airlines boosted similar trips by up to $10, followed by US Airways. Continental Airlines matched Delta's price hike, which included lower increases of $3 to $5 each way. Travel analyst Terry Trippler predicted the latest fare boost would hold. "When we have oil at $65 a barrel, it's got to happen," Trippler said.

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