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

Wednesday, December 23rd, 2026

3 round-trip options

Returning
Fri, Jan 1, 20279 Day Trip
$1,311 USD
Returning
Sun, Jan 3, 202711 Day Trip
$1,561 USD
Returning
Mon, Jan 4, 202712 Day Trip
$1,378 USD