Cheapest return flights from Ontario to San Juan in November from $436

AirHint found the following cheapest return flights from Ontario (ONT) to San Juan (SJU) in November 2025 (see full year).

Return flights

17 Nov - 25 Nov Southwest Airlines
13 Nov - 20 Nov Southwest Airlines
08 Nov - 12 Nov Southwest Airlines
14 Nov - 17 Nov Southwest Airlines
04 Nov - 10 Nov Southwest Airlines
07 Nov - 14 Nov Southwest Airlines
02 Nov - 16 Nov Southwest Airlines
09 Nov - 16 Nov Southwest Airlines
02 Nov - 09 Nov Southwest Airlines
30 Nov - 14 Dec Southwest Airlines
09 Nov - 23 Nov Southwest Airlines
30 Nov - 07 Dec Southwest Airlines
23 Nov - 07 Dec Southwest Airlines
23 Nov - 01 Dec Southwest Airlines
26 Nov - 01 Dec Southwest Airlines
22 Nov - 01 Dec Southwest Airlines

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

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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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