SAN DIEGO -- Southwest Airlines will drop six flights from Lindbergh Field early next year, part of nationwide cutbacks prompted by a declining economy, high oil prices and the difficulties of winter travel, the airline announced Tuesday.

From Jan. 11 to March 6, 2009, Southwest will reduce its daily schedule by 196 flights across the United States, said the airline's Chris Mainz.

Six others will be added for a net loss of 190 flights, Mainz said. None of the new flights will include San Diego.

There will be two fewer flights from San Diego to Oakland, and one less each to Albuquerque, Baltimore-Washington International Airport, Chicago's Midway Airport and Sacramento.

Mainz pointed out that Southwest will still offer 14 daily flights to Oakland and 12 trips to Sacramento.

"San Diego is a very important market for us," Mainz said.

Southwest will still operate about 100 daily flights from Lindbergh Field, which makes it the airline's 10th largest airport, he said.

Mainz said the move was a matter of "matching supply and demand."

The soft economy, high oil prices and a typical slowdown in consumer demand in the winter months are among the reasons for the flight cutbacks, he said. Mainz also said because of delays caused by winter weather, more "aircraft time" is required to travel the same routes.