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New airline routes mean lower prices, study finds
New airline routes mean lower prices, study finds

Airline mergers have put more than 70% of the nation's domestic traffic in the hands of four major carriers. But low-cost airlines still have some influence over airfares. A new study shows that when airlines such as JetBlue, Spirit, Frontier, Alaska and Southwest launch service on an existing domestic route, the average price from all carriers drops as much as 67%. It's good news for travelers, but aviation experts say most popular routes are still dominated by the four biggest carriers: United, Delta, Southwest and the soon-to-be-merged American and US Airways. And even when low-cost carriers launch a new route, fares drop only temporarily. "It doesn't stay that...