Basel Mulhouse Freiburg (BSL) to Seattle / Tacoma (SEA) flight deal in economy from $760
BSLEuro Airport Basel-Mulhouse-Freiburg
Basel Mulhouse Freiburg, France
SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
$938 USD
-19%$760 USD
Verified about 5 hours agoAugust 2026
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Good Availability
47% of dates checked are available within 10% of the lowest price
Sunday, August 9th, 2026
10 round-trip options
Returning
Fri, Aug 14, 2026•5 Day Trip
$1,351 USD
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Sat, Aug 15, 2026•6 Day Trip
$949 USD
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Sun, Aug 16, 2026•7 Day Trip
$873 USD
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Mon, Aug 17, 2026•8 Day Trip
$867 USD
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Tue, Aug 18, 2026•9 Day Trip
$917 USD
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Wed, Aug 19, 2026•10 Day Trip
$1,369 USD
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Thu, Aug 20, 2026•11 Day Trip
$1,179 USD
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Fri, Aug 21, 2026•12 Day Trip
$1,450 USD
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Sat, Aug 22, 2026•13 Day Trip
$1,558 USD
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Sun, Aug 23, 2026•14 Day Trip
$1,139 USD