$756 Cheap KLM flights Seattle (SEA) to Barcelona (BCN)

View $756 flight on Sun, Mar 1, 2026Opens in a new window
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$756 Cheap KLM flights Seattle (SEA) to Barcelona (BCN)

Prices were available within the past 7 days and start at $756 for one-way flights and $536 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

KLM
Mon, Jan 26 - Fri, Feb 6
SEA
Seattle
BCN
Barcelona
$536 Roundtrip, found 6 days ago
$536
Roundtrip
found 6 days ago
Select KLM flight, departing Mon, Jan 26 from Seattle to Barcelona, returning Fri, Feb 6, priced at $536 found 6 days ago
Flights from Seattle (SEA) to Barcelona (BCN)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Barcelona Intl.
Airlines serving
Aer Lingus, Air Canada, Air Europa, Air France, American Airlines, British Airways, Brussels Airlines, Condor, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic
Popular airline
Lufthansa
Distance
5423 mi

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