BOSTON (CBS) – If you’re heading to Logan Airport, better check your flight status as there have been hundreds of delays and cancellations.

Massport says the wind and weather have prevented flights from leaving on time. SkyEye flew over the snow and ice-covered airport Monday afternoon, where only runway was expected to be in use for the next several hours.

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Delays at Logan Airport are averaging five hours. (WBZ-TV)

Of flights leaving Logan, 20 percent have been canceled and 27 percent have been delayed, according to FlightAware’s MiseryMap. Of flights arriving at Logan, 12 percent have been canceled and 31 percent have been delayed.

Basically, that made Logan the worst in the country for cancellations and delays.

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Delays are averaging about seven hours, according to the FAA.

As of 2:30 Monday afternoon, the delays at Logan totaled 389 flights, and cancellations total 217.

The FAA confirmed, “Due to WEATHER / SNOW-ICE, there is a Traffic Management Program in effect for traffic arriving General Edward Lawrence Logan International Airport, Boston, MA (BOS). This is causing some arriving flights to be delayed an average of 7 hours and 9 minutes.”

Things are expected to return to normal Tuesday morning.

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Travelers should check their flight status at Logan’s website.