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

Sunday, September 6th, 2026

5 round-trip options

Returning
Fri, Sep 11, 20265 Day Trip
$1,067 USD
Returning
Sat, Sep 12, 20266 Day Trip
$1,067 USD
Returning
Mon, Sep 14, 20268 Day Trip
$1,057 USD
Returning
Wed, Sep 16, 202610 Day Trip
$1,061 USD
Returning
Sun, Sep 20, 202614 Day Trip
$1,121 USD