Cheapest return ORD–SJU flights, August

AirHint found the following cheapest return flights from Chicago (ORD) to San Juan (SJU) in August 2026 (see full year).

Return flights

24 Aug - 03 Sep Frontier Airlines direct
26 Aug - 03 Sep Frontier Airlines direct
05 Aug - 05 Aug Delta
18 Aug - 25 Aug American Airlines
14 Aug - 21 Aug American Airlines
15 Aug - 25 Aug Frontier Airlines
16 Aug - 25 Aug Frontier Airlines
25 Aug - 01 Sep Frontier Airlines
12 Aug - 19 Aug Delta
19 Aug - 26 Aug Delta
19 Aug - 02 Sep Delta
18 Aug - 24 Aug Frontier Airlines
15 Aug - 31 Aug Frontier Airlines direct
18 Aug - 24 Aug Frontier Airlines direct
29 Aug - 01 Sep Frontier Airlines
20 Aug - 02 Sep Delta
17 Aug - 03 Sep Frontier Airlines
01 Aug - 27 Sep Frontier Airlines
17 Aug - 03 Sep United direct
25 Aug - 01 Sep United direct

Also check the deals for one-way flights from Chicago to San Juan in August.

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