AirHint found the following cheapest return flights from Raleigh-durham (RDU) to Zurich (ZRH) in September 2025 (see full year).

Return flights

24 Sep - 01 Oct	Icelandair
03 Sep - 10 Sep	Icelandair
09 Sep - 16 Sep	Icelandair
12 Sep - 19 Sep	Icelandair
30 Sep - 07 Oct	Icelandair
11 Sep - 18 Sep	Air Canada
16 Sep - 14 Oct	Icelandair
15 Sep - 22 Sep	Icelandair
18 Sep - 25 Sep	Icelandair
06 Sep - 13 Sep	United
21 Sep - 28 Sep	United
27 Sep - 04 Oct	United

Also check the deals for one-way flights from Raleigh-durham to Zurich in September.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Raleigh-durham to Zurich in September from 410€

Return flights