Cheapest one-way flights from Boston to Madrid in May from $284
AirHint found the following cheapest one-way flights from Boston (BOS) to Madrid (MAD) in May 2025 (see full year).
One-Way flights
| 05 May | Vueling Airlines | ||
| 15 May | Vueling Airlines | ||
| 10 May | Fly Play | ||
| 07 May | Fly Play | ||
| 04 May | Icelandair | ||
| 13 May | Vueling Airlines | ||
| 06 May | Fly Play | ||
| 14 May | Fly Play | ||
| 11 May | Fly Play | ||
| 12 May | Fly Play |
Also check the deals for return flights from Boston to Madrid in May.
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.
