Cheapest one-way flights from Ontario to San Juan in November from $168

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

One-Way flights

16 Nov Frontier Airlines
20 Nov Frontier Airlines
09 Nov Frontier Airlines
15 Nov Southwest Airlines
24 Nov Frontier Airlines
22 Nov Frontier Airlines
19 Nov Southwest Airlines
21 Nov Frontier Airlines
01 Nov Southwest Airlines
25 Nov Southwest Airlines

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

Powered by

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.

Book a cheap hotel in San Juan

Cheap car rent in San Juan

Feel free to contact us with any feedback or request another flight research.