Seattle / Tacoma (SEA) to Basel Mulhouse Freiburg (BSL) flight deal in economy from $728
SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
BSLEuro Airport Basel-Mulhouse-Freiburg
Basel Mulhouse Freiburg, France
$975 USD
-25%$728 USD
Verified 13 days agoJuly 2026
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Fair Availability
36% of dates checked are available within 10% of the lowest price
Saturday, July 4th, 2026
0 round-trip options
No flight details available for this date.