AirHint found the following cheapest return flights from Praia, Santiago Island (RAI) to Boston (BOS) in September 2025 (see full year).

Return flights

17 Sep - 29 Sep	TAP
20 Sep - 29 Sep	TAP
09 Sep - 22 Sep	Hahn Air Technologies
18 Sep - 29 Sep	TAP
19 Sep - 29 Sep	TAP
19 Sep - 01 Oct	Hahn Air Technologies
18 Sep - 01 Oct	Cabo Verde Airlines
20 Sep - 02 Oct	TAP
18 Sep - 30 Sep	TAP
20 Sep - 30 Sep	TAP
05 Sep - 12 Sep	TAP
06 Sep - 07 Oct	TAP

Also check the deals for one-way flights from Praia, Santiago Island to Boston in September.

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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Cheapest return flights from Praia, Santiago Island to Boston in September from $838

Return flights