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

Return flights

10 Mar - 24 Mar	Iberia
16 Mar - 31 Mar	United
15 Mar - 02 Apr	Lufthansa
11 Mar - 18 Mar	Iberia
01 Mar - 08 Mar	Iberia
30 Mar - 22 Apr	Air France
29 Mar - 21 Apr	KLM
06 Mar - 13 Mar	Iberia
20 Mar - 28 Mar	British Airways
27 Mar - 09 Apr	Air Canada
28 Mar - 22 Apr	Air Canada
31 Mar - 07 Apr	Iberia
28 Mar - 04 Apr	Air Canada
26 Mar - 02 Apr	Iberia
21 Mar - 28 Mar	Iberia

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

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 March from $569

Return flights