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

Tuesday, September 15th, 2026

5 round-trip options

Returning
Sun, Sep 20, 20265 Day Trip
$1,121 USD
Returning
Mon, Sep 21, 20266 Day Trip
$1,057 USD
Returning
Wed, Sep 23, 20268 Day Trip
$1,050 USD
Returning
Fri, Sep 25, 202610 Day Trip
$1,061 USD
Returning
Tue, Sep 29, 202614 Day Trip
$1,086 USD