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

Monday, December 28th, 2026

3 round-trip options

Returning
Wed, Jan 6, 20279 Day Trip
$974 USD
Returning
Fri, Jan 8, 202711 Day Trip
$974 USD
Returning
Sat, Jan 9, 202712 Day Trip
$1,044 USD