AirHint found the following cheapest one-way flights from Boston (BOS) to Barcelona (BCN) in April 2026 (see full year).
One-Way flights
| 20 Apr | LEVEL | direct | |
| 15 Apr | LEVEL | direct | |
| 13 Apr | TAP | ||
| 13 Apr | LEVEL | direct | |
| 29 Apr | Iberia | direct | |
| 05 Apr | TAP | ||
| 07 Apr | Iberia | direct | |
| 30 Apr | Iberia | direct | |
| 24 Apr | Iberia | direct | |
| 01 Apr | Iberia | direct |
Also check the deals for return flights from Boston to Barcelona in April.
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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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