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

Friday, December 25th, 2026

3 round-trip options

Returning
Sun, Jan 3, 20279 Day Trip
$1,323 USD
Returning
Tue, Jan 5, 202711 Day Trip
$1,039 USD
Returning
Wed, Jan 6, 202712 Day Trip
$1,039 USD