Southwest airlines is having a sale on flights right now. They usually run until the end of thursday. The time range where the sale is valid falls right on the dates for fc.
You must search for the fare on their website and book it with them directly. To my knowledge, they are not partnered with orbitz or expedia or any of those others.
If you already booked a ticket with them, keep in mind you can usually cancel your current ticket, get back the money as a credit, and use that credit to purchase the cheaper fare. Call to be sure.
Fursuiters, remember southwest is the only airline which still allows two free checked bags.