Airlines have canceled more than a dozen flights from Denver to several East Coast cities ahead of a winter weather storm expected to pound parts of the Northeast today.

United Airlines, JetBlue Airways, Frontier Airlines and other carriers nixed some of their nonstop departures to New York, Boston and Philadelphia, according to information on Denver International Airport’s Web site. Some flights, though, are still scheduled at this point.

Airlines also canceled several afternoon and evening flights scheduled to arrive in Denver from cities on the East Coast.

The moves are part of broader cancellations tied to a storm that is expected to drop more than a foot of snow on the East Coast.

Most of the larger carriers serving the region, including American Airlines and Continental Airlines, have axed hundreds of flights.

Airlines are waiving fees and other charges for customers who want to postpone their travel over the next few days and rebook on later flights.

Customers should check with their airlines — rather than the airport — to see whether their flight has been canceled.

"The most important thing to do before you go to the airport is to check the status of the flight or take advantage of our waiver and rebook for a later date," said United spokeswoman Robin Urbanski.

Discount carrier JetBlue, which was widely criticized for its response to storms last month, canceled 215 flights today, most of them involving departures and arrivals at John F. Kennedy International Airport in New York. It also has canceled flights into and out of LaGuardia, Newark and Boston.

JetBlue has been under pressure to do better in bad weather since some passengers were stranded in planes at Kennedy for more than 10 hours during a storm last month. The carrier was unable to resume normal operations for days afterward because flight crews weren’t where they were supposed to be.

"We’re hopeful the plans we have in place will be effective and allow us to recover quickly," said Sebastian White, a JetBlue spokesman.

The Associated Press contributed to this report