Cheapest one-way flights from Ontario to San Juan in April from 182€

AirHint found the following cheapest one-way flights from Ontario (ONT) to San Juan (SJU) in April 2026 (see full year).

One-Way flights

25 Apr Southwest Airlines
17 Apr Southwest Airlines
24 Apr Southwest Airlines
22 Apr Southwest Airlines
18 Apr Southwest Airlines
08 Apr Southwest Airlines
16 Apr Southwest Airlines
01 Apr Southwest Airlines
03 Apr Southwest Airlines
30 Apr Southwest Airlines

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

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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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