Airlines failed in their eighth try this year to raise domestic airfare, likely because low-cost carriers did not support the move. However, airlines are expected to continue trying to increase ticket prices amid soaring fuel costs and geopolitical upheaval. The situation puts pressure on travel agencies as travelers reconsider trips. "I've never before had people say, 'Oh, I don't know,' when they see the airfare," said Kathy Sudeikis of All About Travel in Mission, Kan. "I've had families walk away from Europe."

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