Basel Mulhouse Freiburg (BSL) to Seattle / Tacoma (SEA) flight deal in economy from $764
BSLEuro Airport Basel-Mulhouse-Freiburg
Basel Mulhouse Freiburg, France
SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
$954 USD
-20%$764 USD
Verified 2 days agoAugust 2026
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Good Availability
43% of dates checked are available within 10% of the lowest price
Monday, August 10th, 2026
7 round-trip options
Returning
Sat, Aug 15, 2026•5 Day Trip
$1,344 USD
Returning
Sun, Aug 16, 2026•6 Day Trip
$927 USD
Returning
Mon, Aug 17, 2026•7 Day Trip
$927 USD
Returning
Tue, Aug 18, 2026•8 Day Trip
$922 USD
Returning
Wed, Aug 19, 2026•9 Day Trip
$927 USD
Returning
Sat, Aug 22, 2026•12 Day Trip
$1,342 USD
Returning
Mon, Aug 24, 2026•14 Day Trip
$927 USD