Baltimore/Washington International Thurgood Marshall Airport
A Delta Air Lines jet lands at Baltimore/Washington International Thurgood Marshall Airport on Oct. 24. None of the major airports in the U.S. Northeast have been closed because of Hurricane Sandy, aka the Frankenstorm, as of Sunday at 4 p.m. EDT, but three of them are subject to significant flight delays, according to the Federal Aviation Administration's Air Traffic Control System Command Center. Reuters

None of the major airports in the U.S. Northeast have been closed because of Hurricane Sandy, aka the Frankenstorm, as of Sunday at 4 p.m. EDT, but three of them are subject to significant flight delays, according to the Federal Aviation Administration's Air Traffic Control System Command Center.

Flights destined to arrive at Newark Liberty International Airport, or EWR, in Newark, N.J., are experiencing delays in departure averaging 58 minutes.

Flights destined to arrive at Philadelphia International Airport, or PHL, are experiencing delays in departure averaging 2 hours.

And at LaGuardia Airport, or LGA, in New York, certain arriving flights are being delayed an average of 34 minutes.

The FAA advises travelers to check with their airlines to determine whether their flights are affected by delays.

Newark, Philadelphia, and LaGuardia ranked No. 14, 18, and 20, respectively, among the busiest airports by total passenger boardings in the U.S. last year, according to FAA data.