Cheapest return flights from Chicago to San Juan in April from 150€

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

Return flights

13 Apr - 17 Apr Frontier Airlines
13 Apr - 16 Apr Frontier Airlines
12 Apr - 17 Apr Frontier Airlines
25 Apr - 03 May Frontier Airlines
09 Apr - 16 Apr Frontier Airlines
11 Apr - 17 Apr Frontier Airlines
20 Apr - 24 Apr Frontier Airlines
10 Apr - 16 Apr Frontier Airlines
12 Apr - 16 Apr Frontier Airlines
06 Apr - 09 Apr Frontier Airlines
10 Apr - 18 Apr Frontier Airlines
27 Apr - 02 May Frontier Airlines
12 Apr - 01 May Spirit Airlines
11 Apr - 01 May Spirit Airlines
13 Apr - 01 May Spirit Airlines direct
14 Apr - 01 May Spirit Airlines direct
28 Apr - 08 May Spirit Airlines
03 Apr - 10 May Frontier Airlines
27 Apr - 01 May Spirit Airlines direct
27 Apr - 08 May Spirit Airlines direct

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

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