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

Sunday, December 13th, 2026

3 round-trip options

Returning
Tue, Dec 22, 20269 Day Trip
$974 USD
Returning
Thu, Dec 24, 202611 Day Trip
$974 USD
Returning
Fri, Dec 25, 202612 Day Trip
$1,367 USD