Cheapest return flights from San Antonio to San Juan in March from $270

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

Return flights

06 Mar - 10 Mar Frontier Airlines
06 Mar - 09 Mar Frontier Airlines
20 Mar - 24 Mar Spirit Airlines
09 Mar - 16 Mar Frontier Airlines
29 Mar - 06 Apr Spirit Airlines
09 Mar - 12 Mar Frontier Airlines
12 Mar - 15 Mar Spirit Airlines
10 Mar - 14 Mar Spirit Airlines
06 Mar - 15 Mar Frontier Airlines
16 Mar - 22 Mar Frontier Airlines
18 Mar - 22 Mar Spirit Airlines

Also check the deals for one-way flights from San Antonio to San Juan in March.

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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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