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

Wednesday, December 16th, 2026

3 round-trip options

Returning
Fri, Dec 25, 20269 Day Trip
$1,367 USD
Returning
Sun, Dec 27, 202611 Day Trip
$1,177 USD
Returning
Mon, Dec 28, 202612 Day Trip
$1,154 USD