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 agoOctober 2026
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Great Availability
65% of dates checked are available within 10% of the lowest price
Sunday, October 18th, 2026
6 round-trip options
Returning
Fri, Oct 23, 2026•5 Day Trip
$1,155 USD
Returning
Sun, Oct 25, 2026•7 Day Trip
$752 USD
Returning
Wed, Oct 28, 2026•10 Day Trip
$752 USD
Returning
Thu, Oct 29, 2026•11 Day Trip
$752 USD
Returning
Sat, Oct 31, 2026•13 Day Trip
$808 USD
Returning
Sun, Nov 1, 2026•14 Day Trip
$752 USD