AirHint found the following cheapest return flights from Boston (BOS) to Nice (NCE) in August 2025 (see full year).

Return flights

10 Aug - 26 Aug	United
19 Aug - 26 Aug	United
18 Aug - 26 Aug	Delta
26 Aug - 02 Sep	United
04 Aug - 13 Aug	American Airlines
06 Aug - 13 Aug	American Airlines
20 Aug - 27 Aug	United
31 Aug - 07 Sep	Iberia
29 Aug - 07 Sep	Icelandair
07 Aug - 14 Aug	Air Canada
10 Aug - 19 Aug	British Airways
06 Aug - 18 Aug	British Airways
19 Aug - 24 Aug	Air France
23 Aug - 01 Sep	SWISS
29 Aug - 09 Sep	Lufthansa
28 Aug - 01 Sep	Lufthansa
29 Aug - 01 Sep	Icelandair

Also check the deals for one-way flights from Boston to Nice in August.

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 Boston to Nice in August from $412

Return flights