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

Return flights

29 Jul - 21 Aug	Iberia
29 Jul - 22 Aug	Iberia	direct
23 Jul - 20 Aug	Iberia	direct
25 Jul - 23 Aug	Iberia	direct
30 Jul - 21 Aug	Iberia
24 Jul - 21 Aug	Iberia
29 Jul - 21 Aug	Iberia	direct
30 Jul - 21 Aug	Iberia	direct
24 Jul - 21 Aug	Iberia	direct
07 Jul - 15 Jul	Brussels Airlines
24 Jul - 16 Aug	Iberia	direct
19 Jul - 26 Jul	Condor
20 Jul - 26 Jul	Condor
19 Jul - 26 Jul	Iberia	direct
15 Jul - 29 Jul	Iberia
07 Jul - 15 Jul	Iberia	direct
04 Jul - 25 Jul	Aer Lingus
15 Jul - 29 Jul	Iberia	direct
04 Jul - 25 Jul	Iberia	direct
20 Jul - 26 Jul	Iberia	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 419€

Return flights