NEW YORK (AP) – The long Thanksgiving weekend got a bit longer on Monday for travelers at LaGuardia Airport who saw their flights delayed by an average of three hours because of rain and poor visibility.

According to the Federal Aviation Administration, there were three-hour delays on arrivals at LaGuardia throughout much of the day Monday.

Thirty flights at LaGuardia were canceled, Port Authority of New York and New Jersey spokesman Steve Coleman said.

He did not know the total number of cancellations at Newark or Kennedy, but Newark’s largest carrier, Continental Airlines, said bad weather forced it to cancel six flights into and out of the airport.

Kennedy’s largest carrier, JetBlue Airways, canceled six round-trip flights there.

At LaGuardia, the monitors showed a steady stream of canceled and delayed flights.

Amy Ma, a freshman at the University of Notre Dame, was trying to get back to Indiana by way of Chicago when she looked up at the board and saw her flight had been canceled.

“I panicked,” she said. “But then my dad and I went to the agent and she booked us on another flight, which was good. But now that flight is delayed two hours.”

Much of the rest of the country enjoyed good weather and few flight delays.

The FAA reported delays of 15 minutes or less at Los Angeles International Airport, at Chicago Midway Airport, at Washington Dulles Airport and at other major airports.

There were delays, blamed on rain and fog, at Logan International in Boston and at Hartsfield-Jackson Atlanta International Airport.

In Atlanta, about 25 percent of flights were experiencing at least short delays.

An airport spokeswoman in Atlanta said nearly 306,000 passengers were expected to pass through the airport on Monday. She said Sunday was projected as the heaviest day of the Thanksgiving period, with some 324,000 travelers at the airport.

According to an AAA estimate made before the holiday, a record 38.7 million U.S. residents were expected to travel 50 miles or more between Wednesday and Sunday, up about 1.5 percent from last year.

About 4.7 million were expected to fly, and about 31.2 million travelers were likely to drive in spite of rising gasoline prices.

AP-ES-11-26-07 1711EST