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

Return flights

09 Sep - 16 Sep	Icelandair
01 Sep - 08 Sep	Icelandair
30 Sep - 07 Oct	Icelandair
25 Sep - 02 Oct	Icelandair
17 Sep - 24 Sep	Icelandair
23 Sep - 30 Sep	Icelandair
14 Sep - 21 Sep	Air Canada
11 Sep - 18 Sep	United
18 Sep - 22 Sep	Air Canada
07 Sep - 14 Sep	United
19 Sep - 26 Sep	United
13 Sep - 20 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 $496

Return flights