Cheapest return flights from Ontario to San Juan in July from 389€

AirHint found the following cheapest return flights from Ontario (ONT) to San Juan (SJU) in July 2026 (see full year).

Return flights

15 Jul - 22 Jul Southwest Airlines
16 Jul - 21 Jul Southwest Airlines
19 Jul - 02 Aug Southwest Airlines
24 Jul - 31 Jul Southwest Airlines
26 Jul - 03 Aug Southwest Airlines
22 Jul - 28 Jul Southwest Airlines
08 Jul - 14 Jul Delta
14 Jul - 28 Jul Southwest Airlines
07 Jul - 12 Jul Southwest Airlines
21 Jul - 28 Jul Southwest Airlines
19 Jul - 23 Jul Southwest Airlines
23 Jul - 27 Jul Southwest Airlines
28 Jul - 04 Aug Southwest Airlines

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

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