Cheapest return flights from Ontario to San Juan in March from 445€

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

Return flights

07 Mar - 11 Mar Southwest Airlines
08 Mar - 22 Mar Southwest Airlines
15 Mar - 22 Mar Southwest Airlines
03 Mar - 14 Mar Southwest Airlines
01 Mar - 08 Mar Southwest Airlines
13 Mar - 20 Mar Southwest Airlines
04 Mar - 16 Mar Southwest Airlines
28 Mar - 04 Apr Southwest Airlines
23 Mar - 28 Mar Southwest Airlines
31 Mar - 06 Apr Southwest Airlines
16 Mar - 23 Mar Southwest Airlines
15 Mar - 29 Mar Southwest Airlines
29 Mar - 05 Apr Southwest Airlines
22 Mar - 05 Apr Southwest Airlines

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

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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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