Cheapest return MIA–SJU flights, August

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

Return flights

12 Aug - 24 Aug Frontier Airlines direct
12 Aug - 15 Aug Frontier Airlines direct
14 Aug - 24 Aug Frontier Airlines direct
15 Aug - 19 Aug Frontier Airlines direct
13 Aug - 16 Aug Frontier Airlines direct
14 Aug - 18 Aug Frontier Airlines direct
03 Aug - 15 Aug Frontier Airlines direct
08 Aug - 16 Aug Frontier Airlines direct
03 Aug - 16 Aug Frontier Airlines direct
18 Aug - 24 Aug Frontier Airlines
25 Aug - 01 Sep Frontier Airlines
29 Aug - 01 Sep Frontier Airlines
25 Aug - 01 Sep Frontier Airlines direct
29 Aug - 01 Sep Frontier Airlines direct
28 Aug - 04 Sep Frontier Airlines
28 Aug - 04 Sep Frontier Airlines direct

Also check the deals for one-way flights from Miami to San Juan in August.

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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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