- Spirit and Frontier Airlines plan to mergeCNN
- Frontier and Spirit to merge creating fifth-largest airline in U.S. in $6.6 billion dealCNBC
- Frontier is buying Spirit Airlines in $3B dealFox Business
- Frontier Group, Spirit Airlines Merge in $6.6 Billion DealThe Wall Street Journal
- A match made in airline (fee) heaven: Budget airlines Frontier and Spirit to mergeUSA TODAY