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

Monday, December 7th, 2026

3 round-trip options

Returning
Wed, Dec 16, 20269 Day Trip
$720 USD
Returning
Fri, Dec 18, 202611 Day Trip
$726 USD
Returning
Sat, Dec 19, 202612 Day Trip
$1,013 USD