AirHint found the following cheapest one-way flights from Boston (BOS) to Porto (OPO) in April 2026 (see full year).
One-Way flights
| 27 Apr | Icelandair | ||
| 26 Apr | Icelandair | ||
| 20 Apr | Icelandair | ||
| 26 Apr | TAP | direct | |
| 12 Apr | United | ||
| 20 Apr | TAP | direct | |
| 15 Apr | Delta | ||
| 12 Apr | TAP | direct | |
| 15 Apr | TAP | direct |
Also check the deals for return flights from Boston to Porto in April.
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