Southwest Airlines is offering a chance for travelers to book less expensive air travel through a special 72-hour sale.

The sale runs through 9:59 p.m. Thursday and has the following qualifying dates.

Aug. 20 through Dec. 18 for continental U.S. travel

Sep. 3 through Nov. 2 for inter-island travel in Hawaii

Sept. 4 through Dec. 5 for travel to and from San Juan

Aug. 20 through Dec. 11 for international travel

Below are examples of deals under $100 from Fort Lauderdale.

Baltimore - $79

New Orleans - $79

Washington - $79

Columbus, Ohio - $99

Kansas City - $99

For more flights, click here.