Note: WOW Air is a low-cost carrier. One carry on is included in your airfare. You will have to pay for each checked baggage. Please see their website for restrictions. Checked baggage starts at $50 each.
Looks like this fare is available for March 2017. Use the chart below (image) and pick your travel dates. Plug them in at Expedia.com and book (Expedia have a best price guarantee and no fee for change/cancellation if you need to). This can be booked at WOW Air too but it will be non-refundable.