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

Thursday, September 17th, 2026

5 round-trip options

Returning
Tue, Sep 22, 20265 Day Trip
$1,110 USD
Returning
Wed, Sep 23, 20266 Day Trip
$1,110 USD
Returning
Fri, Sep 25, 20268 Day Trip
$1,110 USD
Returning
Sun, Sep 27, 202610 Day Trip
$1,196 USD
Returning
Thu, Oct 1, 202614 Day Trip
$1,136 USD