Cheapest return flights from Chicago to San Juan in May from 157€

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

Return flights

06 May - 14 May Frontier Airlines
11 May - 14 May Frontier Airlines
02 May - 08 May Frontier Airlines
06 May - 16 May Spirit Airlines
06 May - 09 May Spirit Airlines
09 May - 16 May Spirit Airlines
09 May - 14 May Spirit Airlines
13 May - 16 May Spirit Airlines
13 May - 14 May Spirit Airlines
12 May - 16 May Spirit Airlines
16 May - 03 Jun Spirit Airlines
19 May - 03 Jun Spirit Airlines
18 May - 03 Jun Spirit Airlines direct
19 May - 03 Jun Spirit Airlines direct
16 May - 01 Jun Spirit Airlines
19 May - 01 Jun Spirit Airlines
13 May - 01 Jun Spirit Airlines
12 May - 01 Jun Spirit Airlines
16 May - 02 Jun Spirit Airlines
19 May - 02 Jun Spirit Airlines

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

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