Cheapest return flights from Chicago to San Juan in April from 152€

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

Return flights

19 Apr - 30 Apr Frontier Airlines
25 Apr - 06 May Frontier Airlines
30 Apr - 07 May Frontier Airlines
13 Apr - 23 Apr Frontier Airlines
21 Apr - 30 Apr Spirit Airlines
15 Apr - 22 Apr Frontier Airlines
20 Apr - 30 Apr Frontier Airlines
11 Apr - 18 Apr Frontier Airlines
12 Apr - 17 Apr Frontier Airlines
23 Apr - 25 Apr Frontier Airlines
26 Apr - 30 Apr Frontier Airlines
23 Apr - 30 Apr Frontier Airlines
24 Apr - 01 May Frontier Airlines
30 Apr - 04 May Frontier Airlines
24 Apr - 02 May Frontier Airlines
25 Apr - 08 May Frontier Airlines
26 Apr - 09 May Frontier Airlines
25 Apr - 03 May Frontier Airlines
28 Apr - 09 May Spirit Airlines
28 Apr - 14 May Spirit Airlines

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

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