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 15 days agoJuly 2026
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Great Availability
65% of dates checked are available within 10% of the lowest price
Sunday, July 26th, 2026
8 round-trip options
Returning
Sat, Aug 1, 2026•6 Day Trip
$938 USD
Returning
Sun, Aug 2, 2026•7 Day Trip
$932 USD
Returning
Mon, Aug 3, 2026•8 Day Trip
$938 USD
Returning
Tue, Aug 4, 2026•9 Day Trip
$938 USD
Returning
Wed, Aug 5, 2026•10 Day Trip
$938 USD
Returning
Thu, Aug 6, 2026•11 Day Trip
$978 USD
Returning
Sat, Aug 8, 2026•13 Day Trip
$938 USD
Returning
Sun, Aug 9, 2026•14 Day Trip
$932 USD