Citing high jet fuel costs, Continental Airlines is boosting fares by five dollars on one-way tickets and ten dollars on round-trips.
The fare increases apply to tickets for travel in the 48 contiguous states, and both restricted and unrestricted fares are affected.
The airline notes that in 2003, Continental travelers paid the lowest fares since 1994 despite the high fuel costs.
Meanwhile, the Web site Cheapseats-dot-com says Northwest, American and Delta have followed suit.
A spokesman for Cheapseats says it also looks like this fare hike is going to hold.