All Package Fares are available in US/Canadian dollars, per guest, based on double-occupancy in a Vista suite and include Free Roundtrip Economy Class flights. Fares are capacity controlled and subject to change at any time without notice. Promotional Free Economy Class is offered from select U.S. and Canadian gateways. Promotional air offer is only applicable to specified voyages. Silversea reserves the right to select the air carrier, routing and departure airport from each gateway city. Airline baggage fees are not included. This will be available for booking at an additional charge. Deviations to air travel dates are accepted at a charge of USD 150 / CAD 200 per request plus all additional air costs. In the event Economy Class air is not available (determined at Silversea's sole discretion) or for guests not utilizing the promotional air offer or for non-US/Canadian guests, a non-use Air credit in the amount of USD 500 / CAD 550 per person may be applied. Offer applies to new bookings made between April 1, 2018 through 31 May, 2018. Bookings made before or after the promotional period will not qualify for the savings. Other restrictions apply.