Cheap flights from Madrid to Herron Island from CA $761

View CA $761 flight on Thu, Aug. 21, 2025Opens in a new window

Popular airlines from Madrid to Herron Island

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Cheap flights from Madrid (MAD) to Herron Island (SEA)

Prices were available within the past 7 days and start at CA $761 for one-way flights and CA $988 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Europa
Thu, Aug. 21 - Fri, Aug. 22
MAD
Madrid
SEA
Seattle
CA $988 Roundtrip, found 2 days ago
CA $988
Roundtrip
found 2 days ago
Select Air Europa flight, departing Thu, Aug. 21 from Madrid to Seattle, returning Fri, Aug. 22, priced at CA $988 found 2 days ago
British Airways
Mon, Oct. 27 - Wed, Nov. 26
MAD
Madrid
SEA
Seattle
CA $1,113 Roundtrip, found 5 days ago
CA $1,113
Roundtrip
found 5 days ago
Select British Airways flight, departing Mon, Oct. 27 from Madrid to Seattle, returning Wed, Nov. 26, priced at CA $1,113 found 5 days ago
Aer Lingus
Mon, Oct. 27 - Wed, Nov. 26
MAD
Madrid
SEA
Seattle
CA $1,139 Roundtrip, found 5 days ago
CA $1,139
Roundtrip
found 5 days ago
Select Aer Lingus flight, departing Mon, Oct. 27 from Madrid to Seattle, returning Wed, Nov. 26, priced at CA $1,139 found 5 days ago
Delta
Mon, Oct. 27 - Wed, Nov. 26
MAD
Madrid
SEA
Seattle
CA $1,171 Roundtrip, found 5 days ago
CA $1,171
Roundtrip
found 5 days ago
Select Delta flight, departing Mon, Oct. 27 from Madrid to Seattle, returning Wed, Nov. 26, priced at CA $1,171 found 5 days ago
American Airlines
Mon, Oct. 27 - Wed, Nov. 26
MAD
Madrid
SEA
Seattle
CA $1,177 Roundtrip, found 5 days ago
CA $1,177
Roundtrip
found 5 days ago
Select American Airlines flight, departing Mon, Oct. 27 from Madrid to Seattle, returning Wed, Nov. 26, priced at CA $1,177 found 5 days ago
Air Canada
Mon, Oct. 27 - Wed, Nov. 26
MAD
Madrid
SEA
Seattle
CA $1,305 Roundtrip, found 5 days ago
CA $1,305
Roundtrip
found 5 days ago
Select Air Canada flight, departing Mon, Oct. 27 from Madrid to Seattle, returning Wed, Nov. 26, priced at CA $1,305 found 5 days ago

Find the cheapest month to fly from Madrid (MAD) to Seattle (SEA)

May is typically the cheapest month to fly

From CA $645 - CA $1,495 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.