Cheapest one-way flights from Ontario to San Juan in October from 144€

AirHint found the following cheapest one-way flights from Ontario (ONT) to San Juan (SJU) in October 2025 (see full year).

One-Way flights

25 Oct Delta
28 Oct Southwest Airlines
07 Oct Southwest Airlines
21 Oct Southwest Airlines
14 Oct Southwest Airlines
01 Oct Southwest Airlines
15 Oct Southwest Airlines
22 Oct Southwest Airlines
16 Oct Southwest Airlines
17 Oct Southwest Airlines

Also check the deals for return flights from Ontario to San Juan in October.

Skyscanner

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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