Philadelphia (PHL) to Basel Mulhouse Freiburg (BSL) flight deal in economy from $667

Thursday, September 10th, 2026

5 round-trip options

Returning
Tue, Sep 15, 20265 Day Trip
$1,121 USD
Returning
Wed, Sep 16, 20266 Day Trip
$1,121 USD
Returning
Fri, Sep 18, 20268 Day Trip
$1,121 USD
Returning
Sun, Sep 20, 202610 Day Trip
$1,181 USD
Returning
Thu, Sep 24, 202614 Day Trip
$1,121 USD