AirHint found the following cheapest return flights from Boston (BOS) to Barcelona (BCN) in July 2026 (see full year).

Return flights

30 Jul - 07 Aug	LEVEL	direct
28 Jul - 04 Aug	LEVEL	direct
27 Jul - 30 Jul	Iberia	direct
27 Jul - 03 Aug	Iberia	direct
19 Jul - 22 Jul	Iberia	direct
20 Jul - 27 Jul	Iberia
18 Jul - 21 Jul	Iberia	direct
26 Jul - 29 Jul	Iberia	direct
21 Jul - 28 Jul	Iberia
20 Jul - 23 Jul	Iberia	direct
23 Jul - 30 Jul	Iberia	direct
28 Jul - 31 Jul	Iberia	direct
30 Jul - 02 Aug	Iberia	direct
26 Jul - 02 Aug	Iberia	direct
01 Jul - 04 Aug	Condor
31 Jul - 03 Aug	Iberia
17 Jul - 24 Jul	Iberia
29 Jul - 01 Aug	Iberia	direct
01 Jul - 04 Aug	LEVEL	direct

Also check the deals for one-way flights from Boston to Barcelona in July.

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 Barcelona in July from 474€

Return flights