A Delta Air Lines jet takes off at Boston's Logan...

A Delta Air Lines jet takes off at Boston's Logan International Airport. (Jan. 20, 2011) Credit: AP File

Two major U.S. airlines are again raising round-trip ticket prices by $10 on some domestic routes as they try to counter rising fuel costs.

US Airways initiated the fare increase late Thursday on most routes. Delta Air Lines later followed. No other airlines had joined in as of Friday morning. 

This is the tenth time this year airlines have tried widespread price increases. Six of the previous nine stuck. The last three failed within days because other airlines didn’t raise prices too.

Oil is now above $110 per barrel, having risen 21 percent so far this year. Fare watcher Rick Seaney points out that the airlines successfully raised prices four times in April 2008 when oil prices rose from $102 to $117.
NewsdayTV's Ken Buffa spoke with Robert Sinclair Jr., senior manager of public affairs for AAA Northeast, about some of the best and worst times to travel during the holiday weekend.   Credit: Newsday Studios; File Footage

Labor Day weekend travel forecast NewsdayTV's Ken Buffa spoke with Robert Sinclair Jr., senior manager of public affairs for AAA Northeast, about some of the best and worst times to travel during the holiday weekend.

NewsdayTV's Ken Buffa spoke with Robert Sinclair Jr., senior manager of public affairs for AAA Northeast, about some of the best and worst times to travel during the holiday weekend.   Credit: Newsday Studios; File Footage

Labor Day weekend travel forecast NewsdayTV's Ken Buffa spoke with Robert Sinclair Jr., senior manager of public affairs for AAA Northeast, about some of the best and worst times to travel during the holiday weekend.

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