Round trip Denver to Zurich for $549

Icelandair via Booking.com is offering round trip airfares from Denver to Zurich for $549. The deal includes one stop in Iceland each way and allows a personal item and a carry-on bag. Travel dates are available in October 2026, with some flexibility on departure and return dates. To book, select your preferred travel dates on Booking.com. This fare is significantly lower than the estimated full price of $765, saving you approximately $216 or about 28%. The price is good for economy light fares, which do not include seat selection or ticket changes, so plan accordingly. These prices are for specific travel dates and are subject to fluctuation, but overall represent a strong value for international flights during this period.