A good cross country sale.
- October 13th – 16th. Valid for travel from September to January 4th. Use ITA Software Matrix Airfare Search and flexible month search to see availability. Must purchase 21 days in advance of departure.
- SEA – DEN (Denver) – BOS (Boston) – IAD (Washington D.C. – Dulles) – SEA
- 4,922 miles or 5.8 cents per mile
- Use dates found on ITA Software Matrix Airfare Search and book on United.com
- United’s risk free cancellation policy here