Cheapest return PHX–MAD flights, September

AirHint found the following cheapest return flights from Phoenix (PHX) to Madrid (MAD) in September 2026 (see full year).

Return flights

28 Sep - 14 Oct KLM
21 Sep - 07 Oct British Airways
20 Sep - 27 Sep Air Canada
24 Sep - 02 Oct Iberia
15 Sep - 26 Sep Iberia
16 Sep - 20 Sep British Airways
16 Sep - 21 Sep Delta
13 Sep - 26 Sep Air Canada
02 Sep - 13 Sep Air Canada
11 Sep - 19 Sep KLM
03 Sep - 13 Sep Delta

Also check the deals for one-way flights from Phoenix to Madrid in September.

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