** Special offer can be booked until 31.03.2011 for flights until 15.06.2011 (last return flight). Offer valid for economy class only for online booking at www.helvetic.com. Valid only for roundtrip bookings from Cardiff to Zurich. Only one voucher per booking permitted. Offer subject to availability. Tickets are not refundable. Cannot be used in conjunction with any other offer or discounts. Bookings made via our Service Centre are subject to an additional charge of £9 per person per sector. All passengers must pay relevant taxes and charges on return flight. For full airline terms and conditions of carriage please visit www.helvetic.com.