Good sale to Philadelphia! It is good for travel until January 2013.
- April 11th – 16th. Valid for travel until January 2013. Use ITA Software Matrix Airfare Search and flexible month search to see availability. Must purchase 3 days in advance of departure.
- SEA – IAH (Houston) – PHL (Philadelphia) – IAH – SEA
- 6,386 miles or 4.0 cents per mile