Cheapest return flights from San Diego to Madrid in September from $522

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

Return flights

22 Sep - 29 Sep Delta
21 Sep - 06 Oct Delta
20 Sep - 30 Sep Delta
21 Sep - 30 Sep Delta
14 Sep - 29 Sep Air France
08 Sep - 15 Sep Delta
15 Sep - 30 Sep KLM
01 Sep - 10 Sep KLM
12 Sep - 26 Sep Delta
05 Sep - 31 Oct Delta
02 Sep - 16 Sep British Airways
10 Sep - 28 Sep Delta

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

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