American Airlines have round trip airfares travelling from Dallas (DFW) to Zurich Switzerland (ZRH) for $344, making 1 stop each way. This is a basic economy fare so travel light!
Travel Availability:
Departs DFW: Jan 9, 12, 14, 16, 19, 21, 23, 26, 28, 30; Feb 2, 4, 9, 11, 13, 20; March 5, 19, 21
Returns: good availability returns on an 8-day or 14-day turnaround trip
To book, enter travel dates on Expedia and select flights. Bundling hotel with airfare will save money. When you select your flights, be sure you are selecting the flight with only 1 stop because American has another flight making 2 stops
Zurich Travel Guide
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http://www.expedia.com/