Southwest Airlines continues to add to its BWI Marshall Airport flight map for next year, with its latest scheduled nonstop to Knoxville, Tennessee.

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Southwest will operate the flights to Knoxville once daily, starting March 5. It is among three nonstops from Knoxville that Southwest is adding, with others from Dallas and Orlando.

Delta Air Lines flies nonstop from BWI Marshall to Knoxville. United, American and Allegiant have nonstops to Knoxville from Reagan National Airport and Dulles International Airport.

The BWI Marshall to Knoxville flight is an evening one, departing Balti

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