Flights from Boston to Madrid from $ 628*
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1 Passenger, Economy
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today
today
More United deals on Boston (BOS) to Madrid (MAD) flights
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From | To | Fare Type | Dates | Price |
|---|---|---|---|---|
| Boston (BOS) | Madrid (MAD) | Roundtrip | Economy | 05/10/26 - 05/17/26 | from $ 633 Viewed: 12 hours ago |
| Boston (BOS) | Madrid (MAD) | Roundtrip | Economy | 09/09/26 - 09/22/26 | from $ 636 Viewed: 23 hours ago |
| Boston (BOS) | Madrid (MAD) | Roundtrip | Economy | 05/12/26 - 05/19/26 | from $ 644 Viewed: 12 hours ago |
| Boston (BOS) | Madrid (MAD) | Roundtrip | Economy | 05/10/26 - 05/24/26 | from $ 649 Viewed: 12 hours ago |
| Boston (BOS) | Madrid (MAD) | Roundtrip | Economy | 05/11/26 - 05/18/26 | from $ 650 Viewed: 12 hours ago |
| Boston (BOS) | Madrid (MAD) | Roundtrip | Economy | 05/13/26 - 05/17/26 | from $ 651 Viewed: 12 hours ago |
| Boston (BOS) | Madrid (MAD) | Roundtrip | Economy | 05/13/26 - 05/20/26 | from $ 651 Viewed: 12 hours ago |
| Boston (BOS) | Madrid (MAD) | Roundtrip | Economy | 05/13/26 - 05/27/26 | from $ 651 Viewed: 12 hours ago |
*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.
