AirHint found the following cheapest one-way flights from Minneapolis (MSP) to San Juan (SJU) in August 2025 (see full year).

One-Way flights

25 Aug	Spirit Airlines
24 Aug	Spirit Airlines
23 Aug	Delta	direct
26 Aug	Sun Country Airlines
02 Aug	United
07 Aug	Spirit Airlines
01 Aug	Spirit Airlines
29 Aug	Spirit Airlines
09 Aug	Delta	direct
02 Aug	Sun Country Airlines	direct

Also check the deals for return flights from Minneapolis to San Juan in August.

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 one-way flights from Minneapolis to San Juan in August from 113€

One-Way flights