United flights from Seattle to Madrid from $ 792* or from $/mo
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Featured daily fares for flights from Seattle (SEA) to Madrid (MAD)
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Try alternate month or interact with individual days below in order to find offers.
More United deals on Seattle (SEA) to Madrid (MAD) flights
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From | To | Fare Type | Dates | Price |
|---|---|---|---|---|
| Seattle (SEA) | Madrid (MAD) | Roundtrip | Economy | 05/13/25 - 05/20/25 | from $ 792 Viewed: 20 hours ago |
| Seattle (SEA) | Madrid (MAD) | Roundtrip | Economy | 05/14/25 - 05/21/25 | from $ 807 Viewed: 20 hours ago |
| Seattle (SEA) | Madrid (MAD) | Roundtrip | Economy | 05/14/25 - 05/18/25 | from $ 867 Viewed: 20 hours ago |
| Seattle (SEA) | Madrid (MAD) | Roundtrip | Economy | 05/15/25 - 05/22/25 | from $ 880 Viewed: 20 hours ago |
| Seattle (SEA) | Madrid (MAD) | Roundtrip | Economy | 07/15/25 - 07/22/25 | from $ 942 Viewed: 20 hours ago |
| Seattle (SEA) | Madrid (MAD) | Roundtrip | Economy | 05/13/25 - 05/27/25 | from $ 942 Viewed: 20 hours ago |
| Seattle (SEA) | Madrid (MAD) | Roundtrip | Economy | 05/20/25 - 06/03/25 | from $ 942 Viewed: 20 hours ago |
| Seattle (SEA) | Madrid (MAD) | Roundtrip | Economy | 05/20/25 - 05/27/25 | from $ 942 Viewed: 20 hours ago |
| Seattle (SEA) | Madrid (MAD) | Roundtrip | Economy | 07/15/25 - 07/29/25 | from $ 952 Viewed: 20 hours ago |
| Seattle (SEA) | Madrid (MAD) | Roundtrip | Economy | 07/16/25 - 07/23/25 | from $ 953 Viewed: 20 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.
