NEW YORK — The Transportation Security Administration says passengers have been moving “quite smoothly” through security checkpoints at U.S. airports.

TSA spokeswoman Lisa Farbstein says about 2.5 million passengers were expected to be screened Sunday, the last day of the Thanksgiving holiday weekend. That’s about 500,000 more than a typical weekday. AAA had estimated 48.7 million Americans would travel for the Thanksgiving holiday in total, including other forms of transportation.

Federal Aviation Administration data showed average delays of 15 minutes or less Sunday afternoon at airports across the country.

Lines at Atlanta’s Hartsfield-Jackson International Airport were long but moving smoothly. At New York’s Kennedy Airport, lines were short and flowing quickly. Amtrak in New York City also was running normally. Cleveland and Washington also report large lines that are moving smoothly.

In Canada, the Eastern provinces were hit with their first big blast of winter for the season Saturday and Sunday. There were some delayed and cancelled flights over the weekend, but the airports appear to be running smoothly now. The provinces experienced everything from strong wind to heavy snow and rain.

Please check with the airline directly. There are no issues @stjohnsairport impacting arrivals, but may be weather elsewhere https://t.co/6WWFjQk7B1

— St. John's Airport (@stjohnsairport) November 25, 2016