Offer is valid only on the 3, 4, 8, and 15 consecutive Swiss Travel Pass e-pass" for adults & youths traveling in first class.From April 23 through 5:00pm ET on May 28, 2015, select one of the Swiss Travel Pass e-pass" options and enter coupon code SWISSEPASS20 during checkout on the Delivery page to receive the 20% discount. The Swiss Travel e-pass is pre-validated, therefore travelers are required to provide the first date of travel on the pass. Travel must take place between April 23 and June 30, 2015. All travel must be completed by 11:59 pm on June 30, 2015. One coupon code per booking may be applied. No other coupon code discounts can be combined. Offer is subject to change or extension without notice. No adjustments can be made on prior purchases.Offer may be combined with Swiss Scenic coupon code SCENICRES when calling the Rail Europe contact center. Offer is subject to change or extension without notice. No adjustments may be made on prior purchases.