Wal-Mart said workers get additional holiday pay for working on Thanksgiving. The company is also serving meals at the stores.
But worker Cindy Murray, 57, said she won't be able to sit down for a Thanksgiving meal with her family until after her nine-hour shift ends at 4 p.m. Murray said the company can't put a price on the holiday.
"If they want to do something for us, they will go back to the old tradition," she said.
While the US job and housing markets are improving, that hasn't yet translated into sustained spending increases among most shoppers.
The National Retail Federation expects retail sales to be up 3.9 per cent to $602.1 billion during the last two months of the year. That's higher than last year's 3.5 per cent growth but below the 6 per cent pace seen before the recession.
Analysts expect sales to be generated at the expense of profits as retailers will likely have to do more discounting to get people into stores. More than two dozen stores have already lowered their profit outlooks for the year.
New York shopper Theresa Alcantaro, 35, was missing a holiday gathering of 40 family members but said she would meet up after shopping. She hoped to be finished shopping by 9 p.m.
"I see my family every day. They understand," she said.