Bookable on Orbitz (with full mileage earning, free cancellations until 10pm CT the day after you book, and price assurance refunds) or direct from the airline. -Sample valid dates on Delta: -04/08/12-04/19/12. -05/03/12-05/13/12 (Lag B’omer is 05/10) -Sample valid dates on United: -04/24/12-04/30/12. -04/24/12-05/07/12. HT: FT