allegiant and southwest

[SwanVT2]

When will these airlines post february-april flights?

 

[lmmantini]

Southwest is currently accepting air reservations through January 4, 2015. On August 4, 2014, they will open their schedule for sale through March 6, 2015. However, this date is subject to change! Once SW opens their schedule through March 6th they'll list the date for opening their schedule after March 6th. I can't answer your question about Allegiant.