AirHint found the following cheapest return flights from Miami (MIA) to San Juan (SJU) in March 2026 (see full year).

Return flights

05 Mar - 09 Mar	Southwest Airlines
02 Mar - 07 Mar	Southwest Airlines
14 Mar - 21 Mar	American Airlines	direct
18 Mar - 22 Mar	Southwest Airlines
27 Mar - 07 Apr	Southwest Airlines
18 Mar - 19 Mar	Southwest Airlines
16 Mar - 21 Mar	Southwest Airlines
12 Mar - 23 Mar	Arajet
31 Mar - 04 Apr	Arajet
18 Mar - 20 Mar	Southwest Airlines
13 Mar - 20 Mar	Southwest Airlines
14 Mar - 19 Mar	Southwest Airlines

Also check the deals for one-way flights from Miami to San Juan 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 Miami to San Juan in March from 342€

Return flights