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

Wednesday, September 2nd, 2026

5 round-trip options

Returning
Mon, Sep 7, 20265 Day Trip
$1,057 USD
Returning
Tue, Sep 8, 20266 Day Trip
$1,061 USD
Returning
Thu, Sep 10, 20268 Day Trip
$1,061 USD
Returning
Sat, Sep 12, 202610 Day Trip
$1,136 USD
Returning
Wed, Sep 16, 202614 Day Trip
$1,076 USD