AirHint found the following cheapest return flights from Kansas City (MCI) to San Juan (SJU) in July 2025 (see full year).

Return flights

11 Jul - 18 Jul	Spirit Airlines
17 Jul - 24 Jul	Southwest Airlines
17 Jul - 07 Aug	Spirit Airlines
20 Jul - 26 Jul	Southwest Airlines
04 Jul - 07 Jul	Southwest Airlines
03 Jul - 10 Jul	Spirit Airlines
20 Jul - 24 Jul	Spirit Airlines
20 Jul - 07 Aug	Spirit Airlines
03 Jul - 24 Jul	Spirit Airlines
21 Jul - 25 Jul	Spirit Airlines
09 Jul - 13 Jul	Spirit Airlines
09 Jul - 24 Jul	Spirit Airlines
20 Jul - 09 Aug	Spirit Airlines

Also check the deals for one-way flights from Kansas City to San Juan in July.

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 return flights from Kansas City to San Juan in July from $283

Return flights