Cheapest return flights from Chicago to San Juan in October from 118€

AirHint found the following cheapest return flights from Chicago (ORD) to San Juan (SJU) in October 2025 (see full year).

Return flights

29 Oct - 03 Nov Spirit Airlines
28 Oct - 05 Nov Spirit Airlines
29 Oct - 01 Nov Frontier Airlines
27 Oct - 31 Oct Frontier Airlines
30 Oct - 01 Nov Frontier Airlines
25 Oct - 24 Nov Frontier Airlines
22 Oct - 29 Oct Frontier Airlines
24 Oct - 31 Oct Spirit Airlines
28 Oct - 14 Nov Spirit Airlines
28 Oct - 07 Nov Spirit Airlines
29 Oct - 14 Nov Spirit Airlines
29 Oct - 07 Nov Spirit Airlines
30 Oct - 03 Nov Frontier Airlines
25 Oct - 27 Oct Frontier Airlines
23 Oct - 31 Oct Frontier Airlines
28 Oct - 29 Oct Spirit Airlines
18 Oct - 25 Oct Spirit Airlines
18 Oct - 22 Oct Spirit Airlines
25 Oct - 29 Oct Spirit Airlines
24 Oct - 29 Oct Spirit Airlines

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

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