Cheapest one-way flights from Boston to Barcelona in May from 284€

Best time to book flights for Boston (BOS) to Barcelona (BCN) flights at AirHint

AirHint found the following cheapest one-way flights from Boston (BOS) to Barcelona (BCN) in May 2025 (see full year).

One-Way flights

12 May Spirit Airlines
06 May Fly Play
05 May Spirit Airlines
07 May Azores Airlines
11 May Spirit Airlines
01 May Azores Airlines
04 May Spirit Airlines
13 May Azores Airlines
27 May Azores Airlines
14 May Fly Play

Also check the deals for return flights from Boston to Barcelona in May.

Skyscanner

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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