Cheapest return flights from Ontario to San Juan in February from $284

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

Return flights

21 Feb - 28 Feb Frontier Airlines
20 Feb - 27 Feb Frontier Airlines
24 Feb - 27 Feb Frontier Airlines
14 Feb - 18 Feb Frontier Airlines
11 Feb - 18 Feb Frontier Airlines
20 Feb - 24 Feb Frontier Airlines
26 Feb - 01 Mar Frontier Airlines
05 Feb - 12 Feb Frontier Airlines
13 Feb - 17 Feb Frontier Airlines
13 Feb - 15 Feb Frontier Airlines
19 Feb - 26 Feb Frontier Airlines
22 Feb - 01 Mar Frontier Airlines
24 Feb - 03 Mar Southwest Airlines
25 Feb - 08 Mar Southwest Airlines
25 Feb - 09 Mar Southwest Airlines
22 Feb - 08 Mar Southwest Airlines
27 Feb - 02 Mar Southwest Airlines
28 Feb - 08 Mar Southwest Airlines
26 Feb - 07 Mar Southwest Airlines

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

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