Cheapest return flights from Grand Rapids to San Juan in August from $286

AirHint found the following cheapest return flights from Grand Rapids (GRR) to San Juan (SJU) in August 2025 (see full year).

Return flights

24 Aug - 30 Aug Frontier Airlines
17 Aug - 22 Aug Allegiant Air
14 Aug - 17 Aug Frontier Airlines
27 Aug - 31 Aug United

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

Skyscanner

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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