Cheapest return flights from San Diego to Madrid in September from 398€

AirHint found the following cheapest return flights from San Diego (SAN) to Madrid (MAD) in September 2025 (see full year).

Return flights

23 Sep - 09 Oct SWISS
22 Sep - 09 Oct Air Canada
30 Sep - 29 Oct Delta
25 Sep - 15 Oct Delta
22 Sep - 18 Oct KLM
20 Sep - 27 Sep United
18 Sep - 25 Sep Delta
18 Sep - 26 Sep Delta
19 Sep - 26 Sep United
17 Sep - 27 Sep Delta
19 Sep - 04 Oct Delta
24 Sep - 26 Sep Spirit Airlines
19 Sep - 05 Oct United

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

Skyscanner

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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