Basel Mulhouse Freiburg (BSL) to Seattle / Tacoma (SEA) flight deal in economy from $752
BSLEuro Airport Basel-Mulhouse-Freiburg
Basel Mulhouse Freiburg, France
SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
$858 USD
-12%$752 USD
Verified 16 days agoNovember 2026
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Great Availability
65% of dates checked are available within 10% of the lowest price
Tuesday, November 10th, 2026
6 round-trip options
Returning
Thu, Nov 19, 2026•9 Day Trip
$752 USD
Returning
Fri, Nov 20, 2026•10 Day Trip
$758 USD
Returning
Sat, Nov 21, 2026•11 Day Trip
$1,066 USD
Returning
Sun, Nov 22, 2026•12 Day Trip
$752 USD
Returning
Mon, Nov 23, 2026•13 Day Trip
$752 USD
Returning
Tue, Nov 24, 2026•14 Day Trip
$814 USD