Basel Mulhouse Freiburg (BSL) to Seattle / Tacoma (SEA) flight deal in economy from $752

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
$858 USD
-12%$752 USD
Verified 16 days ago
Great Availability
65% of dates checked are available within 10% of the lowest price

Monday, December 21st, 2026

6 round-trip options

Returning
Wed, Dec 30, 2026•9 Day Trip
$927 USD
Google Flights
Returning
Thu, Dec 31, 2026•10 Day Trip
$927 USD
Google Flights
Returning
Fri, Jan 1, 2027•11 Day Trip
$927 USD
Google Flights
Returning
Sat, Jan 2, 2027•12 Day Trip
$927 USD
Google Flights
Returning
Sun, Jan 3, 2027•13 Day Trip
$927 USD
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Returning
Mon, Jan 4, 2027•14 Day Trip
$839 USD
Google Flights