Basel Mulhouse Freiburg (BSL) to Seattle / Tacoma (SEA) flight deal in economy from $764

Air FranceAFAir FranceDelta Air LinesDLDelta Air LinesKLMKLKLM
Round Trip•Economy
FranceBSL

Euro Airport Basel-Mulhouse-Freiburg

Basel Mulhouse Freiburg, France
United StatesSEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States
$954 USD
-20%$764 USD
Verified 2 days ago
Good Availability
43% of dates checked are available within 10% of the lowest price

Friday, August 7th, 2026

9 round-trip options

Returning
Wed, Aug 12, 2026•5 Day Trip
$1,009 USD
Google Flights
Returning
Thu, Aug 13, 2026•6 Day Trip
$1,009 USD
Google Flights
Returning
Fri, Aug 14, 2026•7 Day Trip
$1,065 USD
Google Flights
Returning
Sat, Aug 15, 2026•8 Day Trip
$1,050 USD
Google Flights
Returning
Sun, Aug 16, 2026•9 Day Trip
$1,029 USD
Google Flights
Returning
Tue, Aug 18, 2026•11 Day Trip
$1,180 USD
Google Flights
Returning
Wed, Aug 19, 2026•12 Day Trip
$1,180 USD
Google Flights
Returning
Thu, Aug 20, 2026•13 Day Trip
$1,180 USD
Google Flights
Returning
Fri, Aug 21, 2026•14 Day Trip
$1,447 USD
Google Flights