The winter weather has slowed down travel across the South.

Several flights in and out of Mcghee Tyson were canceled Tuesday night, and they're just a small chunk of the 1,900 canceled nationwide Tuesday and Wednesday.

Airport officials say the McGhee Tyson's snow desk will open at 6 a.m. Wednesday to monitor the changing conditions.

Here are the affected cities by airline:

Affected US Airways cities: Birmingham, AL ; Huntsville, AL ; Atlanta, GA ; Augusta, GA ; Salisbury, MD ; Asheville, NC ; Charlotte, NC ; Fayetteville, NC ; Greensboro, NC ; Greenville, NC ; Jacksonville, NC ; New Bern, NC ; Raleigh/Durham, NC ; Wilmington, NC ; Columbia, SC ; Florence, SC ; Greenville, SC ; Johnson City, TN ; Knoxville, TN ; Lynchburg, VA ; Newport News, VA ; Norfolk, VA

Southwest Airlines affected cities: Atlanta, Charlotte, Greenville-Spartanburg or Raleigh-Durham.

Delta Air Lines affected cities: Atlanta, Asheville, Charlotte, Greensboro, Greenville, Huntsville, Norfolk and Raleigh.

United Airlines affected cities: Asheville, Atlanta, Charlotte, Chattanooga, Columbia, Greensboro, Greenville/Spartanburg, Huntsville, Knoxville, Nashville, Norfolk and Raleigh/Durham.

American Airlines says they will offer passengers traveling through airports in the Southeast -- including Atlanta -- the capability to change travel plans scheduled between February 11 and Feb. 13, if tickets were bought no later than Feb. 10.

You can check your flight status at http://flyknoxville.com.

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