Cheapest return flights from San Diego to Madrid in September from $428

Best time to book flights for San Diego (SAN) to Madrid (MAD) flights at AirHint

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

Return flights

21 Sep - 07 Oct Air France
21 Sep - 02 Oct Air France
21 Sep - 30 Sep Air France
22 Sep - 06 Oct Air France
17 Sep - 03 Oct Delta
24 Sep - 01 Oct British Airways
16 Sep - 23 Sep Air Canada
08 Sep - 19 Sep Air France
09 Sep - 16 Sep American Airlines
03 Sep - 12 Sep American Airlines
27 Sep - 12 Oct Delta
19 Sep - 26 Sep United
29 Sep - 06 Oct United
03 Sep - 08 Sep KLM
03 Sep - 21 Sep Iberia
15 Sep - 27 Sep British Airways
12 Sep - 18 Sep American Airlines

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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