Cheapest return IAH–ATH flights, September

AirHint found the following cheapest return flights from Houston (IAH) to Athens (ATH) in September 2026 (see full year).

Return flights

10 Sep - 17 Sep Turkish Airlines
30 Sep - 15 Oct Frontier Airlines
01 Sep - 09 Sep Turkish Airlines
17 Sep - 01 Oct Turkish Airlines
02 Sep - 10 Sep Turkish Airlines
10 Sep - 20 Sep Frontier Airlines
11 Sep - 18 Sep Turkish Airlines
13 Sep - 20 Sep Turkish Airlines
01 Sep - 14 Sep Turkish Airlines
20 Sep - 04 Oct Frontier Airlines
23 Sep - 29 Sep Frontier Airlines
12 Sep - 19 Sep Turkish Airlines
22 Sep - 04 Oct Frontier Airlines
17 Sep - 27 Sep Frontier Airlines
19 Sep - 04 Oct Air Canada
25 Sep - 04 Oct Air Canada

Also check the deals for one-way flights from Houston to Athens in September.

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