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

Return flights

16 Jul - 30 Jul	Delta
19 Jul - 30 Jul	Delta
26 Jul - 09 Aug	Delta
17 Jul - 24 Jul	Delta
18 Jul - 30 Jul	Delta
22 Jul - 29 Jul	United
25 Jul - 09 Aug	Delta
26 Jul - 10 Aug	Delta
30 Jul - 06 Aug	United
25 Jul - 10 Aug	Frontier Airlines
14 Jul - 21 Jul	Hawaiian Airlines
22 Jul - 03 Aug	Delta
10 Jul - 20 Jul	jetBlue
07 Jul - 22 Jul	Hawaiian Airlines
09 Jul - 27 Jul	jetBlue
20 Jul - 01 Aug	Air France
12 Jul - 25 Jul	Frontier Airlines
28 Jul - 04 Aug	United
12 Jul - 06 Aug	Frontier Airlines
26 Jul - 02 Aug	United

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

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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Cheapest return flights from San Diego to Madrid in July from 646€

Return flights