NEW YORK — Santa’s sleigh didn’t make it in time for Christmas for some this year because of shipping problems at UPS and FedEx.

The delays were blamed on poor weather earlier this week in parts of the country, as well as on overloaded systems. The holiday shopping period this year was shorter than usual, more buying was done online and Americans’ tendency to wait until the last possible second to shop probably didn’t help either.

Neither company said how many packages were delayed but noted it was a small share of overall holiday shipments. While the bulk of consumers’ holiday spending remains at physical stores, shopping online is increasingly popular and outstripping spending growth in stores at the mall.

“UPS is experiencing heavy holiday volume and making every effort to get packages to their destination; however, the volume of air packages in our system exceeded the capacity of our network immediately preceding Christmas so some shipments were delayed,” United Parcel Service Inc. said in a service advisory online Wednesday.

UPS did not make pickups or deliveries Wednesday and plans to resume normally scheduled service Thursday.

Some FedEx customers were able to pick up packages Christmas Day at their local FedEx Express centers.

“We’re sorry that there could be delays and we’re contacting affected customers who have shipments available for pickup,” said Scott Fiedler, a spokesman for FedEx Corp.

Between Thanksgiving and Christmas, FedEx handled 275 million shipments, according to Fiedler. Those that were not delivered in time, he said, “would be very few.”

The problems appear to have impacted many parts of the country. The Associated Press spoke to people in Alabama, Georgia, Kansas, Louisiana, Nevada, Ohio, Oklahoma, South Carolina, Virginia and other states who didn’t receive presents in time for Christmas.

Many were left with little or no time to make alternative plans.

Jeff Cormier and his Dallas family were among those whose gifts never arrived.

He had three separate UPS packages – including two for which he paid extra for expedited shipping – delayed.

“I’ve had to apologize to three different people when I thought I had everything wrapped up and good to go way before,” Cormier said.

He and his wife are celebrating their baby daughter’s first Christmas and flew in his grandmother from Ohio to join them. Her gift didn’t come in time for Christmas. “My wife and I had our presents to open. Our daughter had her presents to open. And my grandma, she didn’t have anything to open,” Cormier said.

Three people told The Associated Press that when they tracked their packages online, FedEx said deliveries to their homes were attempted but failed because “the business was closed.” During calls with customer service, they said they learned that the local depot was overwhelmed and didn’t attempt delivery.

On Sunday, Eric Swanson gifts for his wife and daughter through Amazon.com and one of its affiliated sites. As an Amazon Prime customer, there was a promise of two-day delivery, getting the gifts to his Carmichael, Calif., home just in time for Christmas. One was shipped via UPS, the other FedEx.

Online tracking tools said the packages would arrive by 8 p.m. Tuesday. Neither did.

“Next time, if I need to get a gift and cut it that close, I will just have to enter the fray and go to the mall,” Swanson said.