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

Monday, December 14th, 2026

3 round-trip options

Returning
Wed, Dec 23, 20269 Day Trip
$989 USD
Returning
Fri, Dec 25, 202611 Day Trip
$1,367 USD
Returning
Sat, Dec 26, 202612 Day Trip
$1,154 USD