Cheapest return RFD–SJU flights, August

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

Return flights

13 Aug - 27 Aug Allegiant Air
13 Aug - 17 Aug Allegiant Air
21 Aug - 28 Aug Allegiant Air
10 Aug - 17 Aug Allegiant Air
16 Aug - 20 Aug Allegiant Air
07 Aug - 17 Aug Allegiant Air
09 Aug - 13 Aug Allegiant Air
31 Aug - 03 Sep Allegiant Air
07 Aug - 16 Aug Allegiant Air
21 Aug - 29 Aug Allegiant Air
03 Aug - 09 Aug Allegiant Air

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

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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