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

Thursday, December 10th, 2026

3 round-trip options

Returning
Sat, Dec 19, 20269 Day Trip
$1,072 USD
Returning
Mon, Dec 21, 202611 Day Trip
$820 USD
Returning
Tue, Dec 22, 202612 Day Trip
$755 USD