Cheapest one-way MIA–SJU flights, May

AirHint found the following cheapest one-way flights from Miami (MIA) to San Juan (SJU) in May 2026 (see full year).

One-Way flights

19 May Frontier Airlines direct
28 May Frontier Airlines
25 May Frontier Airlines direct
31 May Frontier Airlines direct
26 May Frontier Airlines direct
10 May Delta
10 May Frontier Airlines direct
07 May Frontier Airlines
21 May Frontier Airlines direct
09 May United

Also check the deals for return flights from Miami to San Juan in May.

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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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