BSL to SEA from $752 in economy

AFAir France

DLDelta Air Lines

KLKLM

Round Trip•Economy

BSL

Euro Airport Basel-Mulhouse-Freiburg

Basel Mulhouse Freiburg, France

SEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

$858 USD

-12%$752 USD

Verified 15 days ago

September 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

31$752 1$752 2$752 3$752 4$758 5$752 6$752 7$752 8$752 9$752 10$752 11$758 12$752 13$881 14$752 15$757 16$752 17$752 18$758 19$752 20$752 21$752 22$752 23$752 24$752 25$752 26$758 27$752 28$752 29$752 30$758 1$752 2$752 3$752 4$752

Great Availability

65% of dates checked are available within 10% of the lowest price

Friday, September 18th, 2026

6 round-trip options

Returning

Wed, Sep 23, 2026•5 Day Trip

$758 USD

Google Flights

Returning

Fri, Sep 25, 2026•7 Day Trip

$763 USD

Google Flights

Returning

Mon, Sep 28, 2026•10 Day Trip

$803 USD

Google Flights

Returning

Tue, Sep 29, 2026•11 Day Trip

$803 USD

Google Flights

Returning

Thu, Oct 1, 2026•13 Day Trip

$803 USD

Google Flights

Returning

Fri, Oct 2, 2026•14 Day Trip

$860 USD

Google Flights

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

Euro Airport Basel-Mulhouse-Freiburg

Seattle–Tacoma International Airport

September 2026

Friday, September 18th, 2026