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

Sunday, December 20th, 2026

3 round-trip options

Returning
Tue, Dec 29, 20269 Day Trip
$1,128 USD
Returning
Thu, Dec 31, 202611 Day Trip
$1,277 USD
Returning
Fri, Jan 1, 202712 Day Trip
$1,311 USD