American, Delta, Northwest, and US Airways hike fares by $50

On Saturday,
American
,
Delta
,
Northwest
, and
US Airways
matched the
fare increase
introduced by
United
last week.
Continental
matched the fare hike on Friday. Fares on all five airlines will cost $4 to $50 more, depending on the cities and the length of route.
The fare increase, the fourth this month, was spurred by rising jet fuel prices, which have increased by 86 percent this year to a record high of $3.47 per gallon on Friday, reports
Bloomberg News
in a
Washington Post
article.

