The Thanksgiving air travel season is shaping up to be one of the roughest in memory as a surge in passengers is expected to swarm airports...

WASHINGTON — The Thanksgiving air travel season is shaping up to be one of the roughest in memory as a surge in passengers is expected to swarm airports and carriers, which already are struggling to handle stiffened security rules, more checked luggage and a rising number of flight delays.

Travel consultants warn of added inconveniences resulting from thousands more people than last year passing through the airports. Novice fliers could gum up security checkpoints because they don’t understand restrictions on gels and liquids. Airlines, which are already mishandling a record number of bags, may have further problems getting bags to the right destinations.

Bad weather also could disrupt holiday plans for travelers stuck on planes packed to near capacity.

Travel experts recommend that travelers get to the airport early, perhaps even three hours before departure at peak times. Passengers should also “hope for good weather,” said Clay Foushee, an aviation consultant.

Unlimited Digital Access. $1 for 4 weeks.

A combination of factors is to blame for this year’s problems, experts said.

In August, the Transportation Security Administration banned most gels and liquids from the passenger cabins of aircraft after British police said they foiled a plot to blow up airliners with liquid explosives. A month later, authorities eased the ban, allowing passengers to carry small amounts of toiletries in a clear plastic bag.

But the new rules have puzzled even experienced business travelers, and the TSA recently launched a publicity campaign to educate fliers about the rules.

Travelers are allowed to carry on gel and liquid toiletries as long as they are in containers of three ounces or less. Those containers must all fit into a 1-quart plastic bag with a zip top, officials said. Authorities and airport officials urged travelers to check airline and airport Web sites and the TSA site ( to learn more about the rules.

Starting this past weekend, the TSA increased staffing and opened airport checkpoints earlier than usual to handle the increased traffic and ensure that lines don’t get out of hand, said Kip Hawley, the agency’s top official.

The TSA’s bans have resulted in more checked bags that airlines are struggling to handle.

In September, the last month for which data are available from the U.S. Bureau of Transportation Statistics, airlines mishandled 8.25 bags per 1,000 people. It was the eighth-worst month for baggage handling since the government began tracking it, in 1987. It was even worse than the rate of mishandled bags recorded a month earlier, when the TSA quickly enacted its first ban.

Some analysts urged passengers to bring an extra set of clothes in their carry-ons and consider not checking luggage at all to avoid any chance of lost bags.

“It will be a much smoother experience if you can carry on your bags,” said Anne Banas, editor of

Once at the airport, expect big crowds.

The Air Transport Association, a trade group that represents U.S. airlines, predicts that there will be 3 percent more passengers during the 12-day period starting today than there were in the comparable period last year. During peak dates — the day before Thanksgiving and the following Sunday and Monday — the trade group expects 15 to 20 percent more fliers than the average day this year.

Flying on Turkey Day

To beat the crowds, more travelers are flying on Thanksgiving Day.

An analysis of holiday travel by consultant Sabre Airline Solutions for the USA Today newspaper showed that airline bookings on Thursday this week total 66 percent of the daily average for the seven days ended Thanksgiving. Thanksgiving Day travel a year ago was 63 percent of the daily average for the preceding week.

Sabre analyzed domestic, advance-sale round-trip tickets bought through its massive reservation system for the Thanksgiving season travel.

Booking levels are higher than “what we’ve traditionally seen,” Sabre’s Steve Hendrickson told USA today.

United and Northwest airlines are seeing a year-over-year increase in travel on Thanksgiving Day. Northwest spokesman Kurt Ebenhoch attributes the increase to Northwest’s holiday fare sale, the first in two years. Northwest discounted Thanksgiving Day fares to the lowest level available in about a year, he said.