Ultra-low fare carrier Frontier Airlines has expanded its operations to Seattle Paine Field International Airport, introducing nonstop services to Denver, Las Vegas, and Phoenix. Each route will operate twice weekly, enhancing the airline's existing connections from Seattle-Tacoma International Airport to seven other destinations. To mark the occasion, Frontier Airlines is offering promotional fares starting at $69. The expansion is part of Frontier's commitment to providing affordable and convenient travel options to the greater Seattle area and Western Washington. With this new service, Frontier continues to offer value-seeking travelers access to multiple exciting destinations, while passengers can enjoy services like UpFront Plus seating and family-friendly rewards.