Southwest Airlines and Northwest Airlines raised some one-way fares by as much as $10

. The Northwest price hike, ranging from $3 on shorter flights to $10 on longer ones, affects walk-up and seven-day advance purchase fares typically purchased by business travelers and has been at least partially matched by some competitors, according to fare watcher FareCompare. Also ranging between $3 and $10 based on flight distance, the Southwest price hike also drew competitive matches, according to J.P. Morgan Securities analyst Jamie Baker.