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

Thursday, December 17th, 2026

3 round-trip options

Returning
Sat, Dec 26, 20269 Day Trip
$1,224 USD
Returning
Mon, Dec 28, 202611 Day Trip
$1,224 USD
Returning
Tue, Dec 29, 202612 Day Trip
$1,164 USD